α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.934
2400 0.81
Other Properties
2000 0.978
/)
2 ) 1008
2 ) 403
1400 0.991
1600 0.994
Knoop Hardness Hk[Class]
(-30~+70)
Mechanical Properties
1000 0.997
1200 0.997
θh,g 0.4451
nHe-Ne 0.6328 1.58709 ni-nF' 0.016208
nC' 0.64385 1.58665 nF'-ne 0.004928
nC 0.65627 1.58618 ne-nC' 0.004778
nr 0.70652 1.58448 nC'-nt 0.008702
nA' 0.76819 1.58276 ni-ng 0.011567
ns 0.85211 1.58085 nh-ng 0.004288
nt 1.01398 1.57795 ng-nF 0.005185
n1129 1.12864 1.57622 ng-nd 0.011867
n1530 1.52958 1.57069 ne-nC 0.005250
n1970 1.97009 1.56407 nd-nC 0.002952
n2325 2.32542 1.55775 nC-nA' 0.003418
Refractive Index nd
Refractive Indices Partial Dispersions
L-BAL35 Code(d) 589612 Code(e) 591609
(+100~+300)
ΔθC,t 0.0207
ΔθC,A' 0.0048
350 0.922
360 0.956
θd,C 0.3064
θe,C 0.5449
θg,d 1.2318
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
52.2 3.2
Strain Point StP () 489 Annealing Point AP () 520 Transformation Temperature Tg () 527 Yield Point At () 567 Softening Point SP () 619
630 6 Expansion Coefficients 66 α (10-7/) 81
2.29 Thermal Conductivity λ W/(mK) 1.13
t C' He-Ne D e F' g 3.9 4.3 4.3 4.4 4.5 4.8 5.1 3.9 4.3 4.3 4.5 4.6 4.9 5.2 4.0 4.4 4.4 4.5 4.7 5.0 5.3 4.0 4.4 4.5 4.6 4.7 5.1 5.4 4.1 4.5 4.5 4.7 4.8 5.2 5.5 4.1 4.5 4.6 4.8 4.9 5.2 5.6
Copyright© OHARA INC. All Rights Reserved.
2200 0.934 2400 0.81
Temperature Coefficients of Refractive Index
2000 0.978
300
0.998 650 0.998 700 0.998
Coloring 345 λ5 295
Internal transmission 336 300
60~80
-20~ 0 2.82
2 ) 1008
2 ) 403
Knoop Hardness Hk[Class]
Pa)
Acid Resistance(Surface) Group SR
Thermal Properties 800 0.999
Weathering Resistance(Surface) Group W(S)
Acid Resistance(Powder) Group RA(P)
θ'i,F' 1.6701 400
460 0.995
A2 6.90488648E-01 θ'F',e 0.5077
θh,g 0.4452
ng 0.435835 1.60404
θC,t 0.8538 θC,A' 0.3548
nD 0.58929 1.59199 nd 0.58756 1.59208 Relative Partial Dispersions
nHe-Ne 0.6328 1.59002 ni-nF' 0.016335 nC' 0.64385 1.58958 nF'-ne 0.004966 nC 0.65627 1.58911 ne-nC' 0.004815 nr 0.70652 1.58740 nC'-nt 0.008763 nA' 0.76819 1.58566 ni-ng 0.011660 ns 0.85211 1.58373 nh-ng 0.004322 nt 1.01398 1.58082 ng-nF 0.005224
n1129 1.12864 1.57908 ng-nd 0.011957 n1530 1.52958 1.57353 ne-nC 0.005290 n1970 1.97009 1.56687 nd-nC 0.002974 n2325 2.32542 1.56051 nC-nA' 0.003444
Refractive Index nd 1.59208
Abbe Number νd 61.00
L-BAL35P Code(d) 592610 Code(e) 594608
(+100~+300)
ΔθC,t 0.0209 ΔθC,A' 0.0050
θd,C 0.3064 θe,C 0.5450 θg,d 1.2318
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.901
2400 0.83
Other Properties
2000 0.968
/)
2 ) 891
2 ) 357
1400 0.988
1600 0.993
Knoop Hardness Hk[Class]
Pa)
1000 0.999
1200 0.999
θh,g 0.4493
nHe-Ne 0.6328 1.58106 ni-nF' 0.016677
nC' 0.64385 1.58061 nF'-ne 0.005044
nC 0.65627 1.58013 ne-nC' 0.004857
nr 0.70652 1.57843 nC'-nt 0.008599
nA' 0.76819 1.57671 ni-ng 0.011910
ns 0.85211 1.57482 nh-ng 0.004412
nt 1.01398 1.57201 ng-nF 0.005325
n1129 1.12864 1.57038 ng-nd 0.012153
n1530 1.52958 1.56533 ne-nC 0.005334
n1970 1.97009 1.55949 nd-nC 0.002992
n2325 2.32542 1.55402 nC-nA' 0.003426
Refractive Index nd
Refractive Indices Partial Dispersions
L-BAL42 Code(d) 583594 Code(e) 585591
(+100~+300)
ΔθC,t 0.0018
ΔθC,A' 0.0010
290 0.14
350 0.960
360 0.978
θd,C 0.3047
θe,C 0.5432
θg,d 1.2376
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.901
2400 0.83
Other Properties
2000 0.968
/)
2 ) 891
2 ) 357
1400 0.988
1600 0.993
Knoop Hardness Hk[Class]
Pa)
1000 0.999
1200 0.999
θh,g 0.4501
A1 8.81090017E-01
nHe-Ne 0.6328 1.58385 ni-nF' 0.016829
nC' 0.64385 1.58340 nF'-ne 0.005081
nC 0.65627 1.58292 ne-nC' 0.004891
nr 0.70652 1.58120 nC'-nt 0.008649
nA' 0.76819 1.57947 ni-ng 0.012026
ns 0.85211 1.57757 nh-ng 0.004451
nt 1.01398 1.57475 ng-nF 0.005365
n1129 1.12864 1.57311 ng-nd 0.012242
n1530 1.52958 1.56806 ne-nC 0.005371
n1970 1.97009 1.56222 nd-nC 0.003013
n2325 2.32542 1.55671 nC-nA' 0.003449
Refractive Index nd
Refractive Indices Partial Dispersions
L-BAL42P Code(d) 586592 Code(e) 588590
(+100~+300)
ΔθC,t 0.0014
ΔθC,A' 0.0010
290 0.14
350 0.960
360 0.978
θd,C 0.3047
θe,C 0.5431
θg,d 1.2378
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.914
2400 0.84
Other Properties
2000 0.975
/)
2 ) 904
2 ) 362
1400 0.993
1600 0.997
Knoop Hardness Hk[Class]
Pa)
1000 0.999
1200 0.999
θh,g 0.4488
nHe-Ne 0.6328 1.58366 ni-nF' 0.016656
nC' 0.64385 1.58321 nF'-ne 0.005036
nC 0.65627 1.58274 ne-nC' 0.004856
nr 0.70652 1.58103 nC'-nt 0.008634
nA' 0.76819 1.57930 ni-ng 0.011900
ns 0.85211 1.57740 nh-ng 0.004404
nt 1.01398 1.57458 ng-nF 0.005313
n1129 1.12864 1.57293 ng-nd 0.012132
n1530 1.52958 1.56781 ne-nC 0.005333
n1970 1.97009 1.56185 nd-nC 0.002993
n2325 2.32542 1.55621 nC-nA' 0.003435
Refractive Index nd
Refractive Indices Partial Dispersions
L-BAL43 Code(d) 586597 Code(e) 588594
(+100~+300)
ΔθC,t 0.0045
ΔθC,A' 0.0019
350 0.949
360 0.971
θd,C 0.3050
θe,C 0.5435
θg,d 1.2364
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.87
2400 0.80
Other Properties
2000 0.974
/)
2 ) 793
2 ) 327
1400 0.974
1600 0.994
Knoop Hardness Hk[Class]
Pa)
1000 0.999
1200 0.999
θh,g 0.4397
A1 9.17473918E-01
nHe-Ne 0.6328 1.51462 ni-nF' 0.013387
nC' 0.64385 1.51424 nF'-ne 0.004105
nC 0.65627 1.51385 ne-nC' 0.004009
nr 0.70652 1.51241 nC'-nt 0.007479
nA' 0.76819 1.51094 ni-ng 0.009541
ns 0.85211 1.50930 nh-ng 0.003544
nt 1.01398 1.50677 ng-nF 0.004298
n1129 1.12864 1.50523 ng-nd 0.009874
n1530 1.52958 1.50020 ne-nC 0.004407
n1970 1.97009 1.49404 nd-nC 0.002484
n2325 2.32542 1.48810 nC-nA' 0.002904
Refractive Index nd
Refractive Indices Partial Dispersions
(+100~+300)
ΔθC,t 0.0312
ΔθC,A' 0.0068
350 0.973
360 0.986
θd,C 0.3082
θe,C 0.5468
θg,d 1.2251
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.919
2400 0.73
Other Properties
2000 0.969
/)
2 ) 1151
2 ) 443
1400 0.997
1600 0.996
Knoop Hardness Hk[Class]
Pa)
1000 0.999
1200 0.999
θh,g 0.4860
nHe-Ne 0.6328 1.80218 ni-nF' 0.036572
nC' 0.64385 1.80132 nF'-ne 0.010331
nC 0.65627 1.80039 ne-nC' 0.009615
nr 0.70652 1.79713 nC'-nt 0.015658
nA' 0.76819 1.79391 ni-ng 0.026514
ns 0.85211 1.79048 nh-ng 0.009578
nt 1.01398 1.78566 ng-nF 0.011217
n1129 1.12864 1.78303 ng-nd 0.025070
n1530 1.52958 1.77569 ne-nC 0.010537
n1970 1.97009 1.76797 nd-nC 0.005856
n2325 2.32542 1.76094 nC-nA' 0.006484
Refractive Index nd
Refractive Indices Partial Dispersions
L-LAH53 Code(d) 806409 Code(e) 811407
(+100~+300)
ΔθC,t 0.0091
ΔθC,A' 0.0036
350 0.47
360 0.70
θd,C 0.2971
θe,C 0.5346
θg,d 1.2720
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.942
2400 0.79
Other Properties
2000 0.975
/)
2 ) 1116
2 ) 428
1400 0.998
1600 0.997
Knoop Hardness Hk[Class]
5 Pa)
(-30~+70)
Mechanical Properties
1000 0.999
1200 0.999
θh,g 0.4856
nHe-Ne 0.6328 1.80424 ni-nF' 0.036937
nC' 0.64385 1.80336 nF'-ne 0.010455
nC 0.65627 1.80243 ne-nC' 0.009723
nr 0.70652 1.79914 nC'-nt 0.015716
nA' 0.76819 1.79590 ni-ng 0.026762
ns 0.85211 1.79245 nh-ng 0.009680
nt 1.01398 1.78765 ng-nF 0.011348
n1129 1.12864 1.78505 ng-nd 0.025366
n1530 1.52958 1.77793 ne-nC 0.010654
n1970 1.97009 1.77059 nd-nC 0.005918
n2325 2.32542 1.76397 nC-nA' 0.006535
Refractive Index nd
Refractive Indices Partial Dispersions
L-LAH84 Code(d) 808405 Code(e) 813403
(+100~+300)
ΔθC,t 0.0047
ΔθC,A' 0.0028
350 0.54
360 0.76
θd,C 0.2968
θe,C 0.5344
θg,d 1.2724
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0039
ΔθC,A' 0.0028
Refractive Indices Partial Dispersions
n1970 1.97009 1.81425 nd-nC 0.006279
n2325 2.32542 1.80740 nC-nA' 0.006929
n1129 1.12864 1.82934 ng-nd 0.026903
n1530 1.52958 1.82188 ne-nC 0.011304
ns 0.85211 1.83714 nh-ng 0.010254
nt 1.01398 1.83207 ng-nF 0.012031
nr 0.70652 1.84423 nC'-nt 0.016640
nA' 0.76819 1.84079 ni-ng 0.028327
nC' 0.64385 1.84871 nF'-ne 0.011091
nC 0.65627 1.84772 ne-nC' 0.010316
nD 0.58929 1.85381
nHe-Ne 0.6328 1.84964 ni-nF' 0.039114
ne 0.54607 1.85903
nF 0.48613 1.86887
θh,g 0.4848
1000 0.999
1200 0.999
/)
2 ) 1115
2 ) 427
1400 0.999
1600 0.998
Knoop Hardness Hk[Class]
Pa)
2200 0.933
2400 0.77
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0050
ΔθC,A' 0.0026
Refractive Indices Partial Dispersions
n1970 1.97009 1.79293 nd-nC 0.006153
n2325 2.32542 1.78602 nC-nA' 0.006789
n1129 1.12864 1.80800 ng-nd 0.026462
n1530 1.52958 1.80058 ne-nC 0.011081
ns 0.85211 1.81568 nh-ng 0.010152
nt 1.01398 1.81069 ng-nF 0.011860
nr 0.70652 1.82262 nC'-nt 0.016322
nA' 0.76819 1.81926 ni-ng 0.028165
nC' 0.64385 1.82701 nF'-ne 0.010898
nC 0.65627 1.82605 ne-nC' 0.010113
nD 0.58929 1.83202
nHe-Ne 0.6328 1.82792 ni-nF' 0.038801
ne 0.54607 1.83713
nF 0.48613 1.84680
θh,g 0.4891
1000 0.997
1200 0.997
/)
2 ) 1148
2 ) 440
1400 0.996
1600 0.994
Knoop Hardness Hk[Class]
Pa)
2200 0.925
2400 0.75
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0085
ΔθC,A' 0.0038
Refractive Indices Partial Dispersions
n1970 1.97009 1.73103 nd-nC 0.004692
n2325 2.32542 1.72404 nC-nA' 0.005282
n1129 1.12864 1.74527 ng-nd 0.019488
n1530 1.52958 1.73852 ne-nC 0.008400
ns 0.85211 1.75168 nh-ng 0.007208
nt 1.01398 1.74758 ng-nF 0.008608
nr 0.70652 1.75716 nC'-nt 0.012975
nA' 0.76819 1.75453 ni-ng 0.019614
nC' 0.64385 1.76055 nF'-ne 0.008069
nC 0.65627 1.75981 ne-nC' 0.007657
nD 0.58929 1.76436
nHe-Ne 0.6328 1.76125 ni-nF' 0.027325
ne 0.54607 1.76821
nF 0.48613 1.77538
θh,g 0.4629
1000 0.999
1200 0.999
/)
2 ) 1144
2 ) 439
1400 0.997
1600 0.996
Knoop Hardness Hk[Class]
Pa)
2200 0.905
2400 0.67
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0032
ΔθC,A' 0.0019
Refractive Indices Partial Dispersions
n1970 1.97009 1.81904 nd-nC 0.006839
n2325 2.32542 1.81215 nC-nA' 0.007490
n1129 1.12864 1.83449 ng-nd 0.029797
n1530 1.52958 1.82677 ne-nC 0.012343
ns 0.85211 1.84276 nh-ng 0.011584
nt 1.01398 1.83736 ng-nF 0.013427
nr 0.70652 1.85038 nC'-nt 0.017873
nA' 0.76819 1.84667 ni-ng
nD 0.58929 1.86080
nHe-Ne 0.6328 1.85624 ni-nF'
θh,g 0.4991
1000 0.999
1200 0.999
/)
2 ) 1121
2 ) 430
1400 0.997
1600 0.996
Knoop Hardness Hk[Class]
Pa)
2200 0.923
2400 0.74
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.918
2400 0.72
Other Properties
2000 0.969
/)
2 ) 1078
2 ) 419
1400 0.996
1600 0.995
Knoop Hardness Hk[Class]
Pa)
1000 0.999
1200 0.999
θh,g 0.4572
nHe-Ne 0.6328 1.69076 ni-nF' 0.022580
nC' 0.64385 1.69018 nF'-ne 0.006731
nC 0.65627 1.68955 ne-nC' 0.006429
nr 0.70652 1.68731 nC'-nt 0.011117
nA' 0.76819 1.68507 ni-ng 0.016179
ns 0.85211 1.68263 nh-ng 0.005962
nt 1.01398 1.67906 ng-nF 0.007148
n1129 1.12864 1.67702 ng-nd 0.016239
n1530 1.52958 1.67089 ne-nC 0.007056
n1970 1.97009 1.66392 nd-nC 0.003949
n2325 2.32542 1.65737 nC-nA' 0.004481
Refractive Index nd
Refractive Indices Partial Dispersions
L-LAL13 Code(d) 694532 Code(e) 697529
(+100~+300)
ΔθC,t 0.0082
ΔθC,A' 0.0033
290 0.06
350 0.84
360 0.913
θd,C 0.3028
θe,C 0.5411
θg,d 1.2453
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.85
2400 0.59
Other Properties
2000 0.949
/)
2 ) 1103
2 ) 427
1400 0.990
1600 0.991
Knoop Hardness Hk[Class]
Pa)
1000 0.999
1200 0.999
θh,g 0.4557
nHe-Ne 0.6328 1.69029 ni-nF' 0.022598
nC' 0.64385 1.68970 nF'-ne 0.006747
nC 0.65627 1.68906 ne-nC' 0.006463
nr 0.70652 1.68680 nC'-nt 0.011351
nA' 0.76819 1.68453 ni-ng 0.016189
ns 0.85211 1.68203 nh-ng 0.005966
nt 1.01398 1.67835 ng-nF 0.007158
n1129 1.12864 1.67621 ng-nd 0.016276
n1530 1.52958 1.66960 ne-nC 0.007095
n1970 1.97009 1.66189 nd-nC 0.003975
n2325 2.32542 1.65455 nC-nA' 0.004537
Refractive Index nd
Refractive Indices Partial Dispersions
L-LAL15 Code(d) 693529 Code(e) 696527
(+100~+300)
ΔθC,t 0.0237
ΔθC,A' 0.0065
290 0.53
350 0.948
360 0.968
θd,C 0.3036
θe,C 0.5419
θg,d 1.2431
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.936
2400 0.75
Other Properties
2000 0.974
310 0.09
320 0.33
330 0.56
340 0.72
/)
2 ) 1147
2 ) 445
1400 0.998
1600 0.997
Knoop Hardness Hk[Class]
Pa)
1000 0.999
1200 0.999
θh,g 0.4632
nHe-Ne 0.6328 1.74005 ni-nF' 0.026483
nC' 0.64385 1.73937 nF'-ne 0.007813
nC 0.65627 1.73866 ne-nC' 0.007413
nr 0.70652 1.73609 nC'-nt 0.012567
nA' 0.76819 1.73354 ni-ng 0.019016
ns 0.85211 1.73078 nh-ng 0.006984
nt 1.01398 1.72681 ng-nF 0.008336
n1129 1.12864 1.72458 ng-nd 0.018870
n1530 1.52958 1.71804 ne-nC 0.008133
n1970 1.97009 1.71082 nd-nC 0.004543
n2325 2.32542 1.70409 nC-nA' 0.005115
Refractive Index nd
Refractive Indices Partial Dispersions
L-LAM60 Code(d) 743493 Code(e) 747490
(+100~+300)
ΔθC,t 0.0079
ΔθC,A' 0.0037
350 0.83
360 0.904
θd,C 0.3013
θe,C 0.5394
θg,d 1.2516
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.925
2400 0.76
Other Properties
2000 0.971
/)
2 ) 1133
2 ) 445
1400 0.997
1600 0.995
Knoop Hardness Hk[Class]
Pa)
1000 0.998
1200 0.999
θh,g 0.4925
nHe-Ne 0.6328 1.72705 ni-nF' 0.034057
nC' 0.64385 1.72626 nF'-ne 0.009470
nC 0.65627 1.72542 ne-nC' 0.008792
nr 0.70652 1.72243 nC'-nt 0.014410
nA' 0.76819 1.71948 ni-ng 0.024789
ns 0.85211 1.71632 nh-ng 0.008885
nt 1.01398 1.71185 ng-nF 0.010333
n1129 1.12864 1.70939 ng-nd 0.023019
n1530 1.52958 1.70237 ne-nC 0.009635
n1970 1.97009 1.69488 nd-nC 0.005354
n2325 2.32542 1.68805 nC-nA' 0.005939
Refractive Index nd
Refractive Indices Partial Dispersions
L-LAM69 Code(d) 731405 Code(e) 735403
(+100~+300)
ΔθC,t 0.0154
ΔθC,A' 0.0042
350 0.26
360 0.53
θd,C 0.2968
θe,C 0.5341
θg,d 1.2760
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.927
2400 0.89
Other Properties
2000 0.962
/)
2 ) 845
2 ) 337
1400 0.998
1600 0.995
Knoop Hardness Hk[Class]
Pa)
1000 0.999
1200 0.999
θh,g 0.5304
nHe-Ne 0.6328 1.68498 ni-nF'
nA' 0.76819 1.67605 ni-ng
Refractive Index nd
Refractive Indices Partial Dispersions
L-TIM28 Code(d) 689310 Code(e) 695308
(+100~+300)
ΔθC,t 0.0035
ΔθC,A' 0.0003
350 0.01
360 0.21
θd,C 0.2904
θe,C 0.5267
θg,d 1.3083
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.927
2400 0.89
Other Properties
2000 0.962
/)
2 ) 845
2 ) 337
1400 0.998
1600 0.995
Knoop Hardness Hk[Class]
(-30~+70)
Mechanical Properties
1000 0.999
1200 0.999
θh,g 0.5311
nHe-Ne 0.6328 1.68995 ni-nF'
nA' 0.76819 1.68086 ni-ng
Refractive Index nd
Refractive Indices Partial Dispersions
L-TIM28P Code(d) 695307 Code(e) 700304
(+100~+300)
ΔθC,t 0.0030
ΔθC,A' 0.0002
350 0.01
360 0.21
θd,C 0.2902
θe,C 0.5265
θg,d 1.3090
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.949
2400 0.85
Other Properties
2000 0.981
/)
2 ) 962
2 ) 378
1400 0.996
1600 0.996
Knoop Hardness Hk[Class]
Pa)
1000 0.997
1200 0.998
θh,g 0.4775
nHe-Ne 0.6328 1.66709 ni-nF' 0.025825
nC' 0.64385 1.66646 nF'-ne 0.007400
nC 0.65627 1.66579 ne-nC' 0.006945
nr 0.70652 1.66341 nC'-nt 0.011535
nA' 0.76819 1.66105 ni-ng 0.018670
ns 0.85211 1.65852 nh-ng 0.006774
nt 1.01398 1.65492 ng-nF 0.007983
n1129 1.12864 1.65293 ng-nd 0.017928
n1530 1.52958 1.64722 ne-nC 0.007614
n1970 1.97009 1.64108 nd-nC 0.004241
n2325 2.32542 1.63546 nC-nA' 0.004735
Refractive Index nd
Refractive Indices Partial Dispersions
S-BAH10 Code(d) 670473 Code(e) 673470
(+100~+300)
ΔθC,t -0.0023
ΔθC,A' 0.0007
350 0.19
360 0.48
θd,C 0.2990
θe,C 0.5367
θg,d 1.2638
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.936
2400 0.84
Other Properties
2000 0.976
/)
2 ) 929
2 ) 365
1400 0.994
1600 0.995
Knoop Hardness Hk[Class]
Pa)
1000 0.997
1200 0.998
θh,g 0.4747
nHe-Ne 0.6328 1.66385 ni-nF' 0.024938
nC' 0.64385 1.66324 nF'-ne 0.007189
nC 0.65627 1.66259 ne-nC' 0.006759
nr 0.70652 1.66027 nC'-nt 0.011228
nA' 0.76819 1.65798 ni-ng 0.018002
ns 0.85211 1.65551 nh-ng 0.006549
nt 1.01398 1.65201 ng-nF 0.007739
n1129 1.12864 1.65008 ng-nd 0.017407
n1530 1.52958 1.64456 ne-nC 0.007411
n1970 1.97009 1.63866 nd-nC 0.004129
n2325 2.32542 1.63328 nC-nA' 0.004611
Refractive Index nd
Refractive Indices Partial Dispersions
S-BAH11 Code(d) 667483 Code(e) 670480
(+100~+300)
ΔθC,t -0.0069
ΔθC,A' -0.0002
350 0.27
360 0.56
θd,C 0.2993
θe,C 0.5371
θg,d 1.2617
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.921
2400 0.81
Other Properties
2000 0.974
/)
2 ) 936
2 ) 368
1400 0.993
1600 0.994
Knoop Hardness Hk[Class]
Pa)
1000 0.998
1200 0.998
θh,g 0.4985
nHe-Ne 0.6328 1.69804 ni-nF' 0.032597
nC' 0.64385 1.69729 nF'-ne 0.008952
nC 0.65627 1.69650 ne-nC' 0.008276
nr 0.70652 1.69370 nC'-nt 0.013433
nA' 0.76819 1.69094 ni-ng 0.023797
ns 0.85211 1.68800 nh-ng 0.008480
nt 1.01398 1.68386 ng-nF 0.009808
n1129 1.12864 1.68160 ng-nd 0.021787
n1530 1.52958 1.67526 ne-nC 0.009068
n1970 1.97009 1.66858 nd-nC 0.005033
n2325 2.32542 1.66253 nC-nA' 0.005561
Refractive Index nd
Refractive Indices Partial Dispersions
S-BAH27 Code(d) 702412 Code(e) 706410
(+100~+300)
ΔθC,t 0.0029
ΔθC,A' 0.0011
360 0.16
θd,C 0.2958
θe,C 0.5330
θg,d 1.2807
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.938
2400 0.84
Other Properties
2000 0.979
/)
2 ) 911
2 ) 375
1400 0.994
1600 0.995
Knoop Hardness Hk[Class]
Pa)
1000 0.998
1200 0.998
θh,g 0.5083
nHe-Ne 0.6328 1.71952 ni-nF'
nA' 0.76819 1.71167 ni-ng
Refractive Index nd
Refractive Indices Partial Dispersions
S-BAH28 Code(d) 723380 Code(e) 728377
(+100~+300)
ΔθC,t 0.0023
ΔθC,A' 0.0006
360 0.06
θd,C 0.2940
θe,C 0.5309
θg,d 1.2896
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.89
2400 0.84
Other Properties
2000 0.951
/)
2 ) 727
2 ) 292
1400 0.992
1600 0.992
Knoop Hardness Hk[Class]
Pa)
1000 0.997
1200 0.997
θh,g 0.4722
nHe-Ne 0.6328 1.56865 ni-nF' 0.020209
nC' 0.64385 1.56815 nF'-ne 0.005845
nC 0.65627 1.56762 ne-nC' 0.005514
nr 0.70652 1.56572 nC'-nt 0.009286
nA' 0.76819 1.56383 ni-ng 0.014580
ns 0.85211 1.56179 nh-ng 0.005308
nt 1.01398 1.55886 ng-nF 0.006281
n1129 1.12864 1.55722 ng-nd 0.014148
n1530 1.52958 1.55244 ne-nC 0.006047
n1970 1.97009 1.54721 nd-nC 0.003373
n2325 2.32542 1.54240 nC-nA' 0.003787
Refractive Index nd
Refractive Indices Partial Dispersions
(+100~+300)
ΔθC,t -0.0063
ΔθC,A' -0.0005
350 0.47
360 0.76
θd,C 0.3001
θe,C 0.5380
θg,d 1.2587
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.88
2400 0.83
Other Properties
2000 0.945
/)
2 ) 719
2 ) 288
1400 0.991
1600 0.990
Knoop Hardness Hk[Class]
(-30~+70)
Mechanical Properties
1000 0.997
1200 0.996
θh,g 0.4672
nHe-Ne 0.6328 1.56910 ni-nF' 0.019152
nC' 0.64385 1.56862 nF'-ne 0.005599
nC 0.65627 1.56810 ne-nC' 0.005301
nr 0.70652 1.56627 nC'-nt 0.008970
nA' 0.76819 1.56445 ni-ng 0.013784
ns 0.85211 1.56248 nh-ng 0.005041
nt 1.01398 1.55965 ng-nF 0.005992
n1129 1.12864 1.55806 ng-nd 0.013536
n1530 1.52958 1.55341 ne-nC 0.005815
n1970 1.97009 1.54831 nd-nC 0.003246
n2325 2.32542 1.54361 nC-nA' 0.003653
Refractive Index nd
Refractive Indices Partial Dispersions
(+100~+300)
ΔθC,t -0.0114
ΔθC,A' -0.0015
350 0.63
360 0.84
θd,C 0.3008
θe,C 0.5389
θg,d 1.2545
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.920
2400 0.89
Other Properties
2000 0.966
/)
2 ) 710
2 ) 306
1400 0.993
1600 0.995
Knoop Hardness Hk[Class]
Pa)
1000 0.999
1200 0.999
θh,g 0.4520
A1 7.14605258E-01
nHe-Ne 0.6328 1.53804 ni-nF' 0.015531
nC' 0.64385 1.53763 nF'-ne 0.004671
nC 0.65627 1.53719 ne-nC' 0.004487
nr 0.70652 1.53562 nC'-nt 0.007896
nA' 0.76819 1.53404 ni-ng 0.011107
ns 0.85211 1.53230 nh-ng 0.004105
nt 1.01398 1.52974 ng-nF 0.004941
n1129 1.12864 1.52825 ng-nd 0.011260
n1530 1.52958 1.52370 ne-nC 0.004927
n1970 1.97009 1.51848 nd-nC 0.002762
n2325 2.32542 1.51358 nC-nA' 0.003156
Refractive Index nd
Refractive Indices Partial Dispersions
S-BAL12 Code(d) 540595 Code(e) 542592
(+100~+300)
ΔθC,t -0.0046
ΔθC,A' -0.0005
350 0.959
360 0.979
θd,C 0.3042
θe,C 0.5426
θg,d 1.2400
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.914
2400 0.86
Other Properties
2000 0.967
/)
2 ) 811
2 ) 327
1400 0.989
1600 0.993
Knoop Hardness Hk[Class]
Pa)
1000 0.997
1200 0.997
θh,g 0.4587
nHe-Ne 0.6328 1.56671 ni-nF' 0.017555
nC' 0.64385 1.56626 nF'-ne 0.005209
nC 0.65627 1.56577 ne-nC' 0.004976
nr 0.70652 1.56404 nC'-nt 0.008650
nA' 0.76819 1.56230 ni-ng 0.012595
ns 0.85211 1.56040 nh-ng 0.004629
nt 1.01398 1.55761 ng-nF 0.005539
n1129 1.12864 1.55601 ng-nd 0.012574
n1530 1.52958 1.55116 ne-nC 0.005462
n1970 1.97009 1.54565 nd-nC 0.003057
n2325 2.32542 1.54050 nC-nA' 0.003476
Refractive Index nd
Refractive Indices Partial Dispersions
S-BAL14 Code(d) 569563 Code(e) 571561
(+100~+300)
ΔθC,t -0.0021
ΔθC,A' 0.0002
350 0.74
360 0.88
θd,C 0.3029
θe,C 0.5412
θg,d 1.2459
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.89
2400 0.80
Other Properties
2000 0.972
/)
2 ) 832
2 ) 333
1400 0.984
1600 0.994
Knoop Hardness Hk[Class]
Pa)
1000 0.998
1200 0.998
θh,g 0.4477
A1 9.41357273E-01
nHe-Ne 0.6328 1.58710 ni-nF' 0.016310
nC' 0.64385 1.58666 nF'-ne 0.004942
nC 0.65627 1.58619 ne-nC' 0.004772
nr 0.70652 1.58450 nC'-nt 0.008530
nA' 0.76819 1.58280 ni-ng 0.011647
ns 0.85211 1.58093 nh-ng 0.004314
nt 1.01398 1.57813 ng-nF 0.005210
n1129 1.12864 1.57648 ng-nd 0.011904
n1530 1.52958 1.57134 ne-nC 0.005241
n1970 1.97009 1.56531 nd-nC 0.002942
n2325 2.32542 1.55959 nC-nA' 0.003384
Refractive Index nd
Refractive Indices Partial Dispersions
S-BAL35 Code(d) 589612 Code(e) 591609
(+100~+300)
ΔθC,t 0.0030
ΔθC,A' 0.0012
350 0.904
360 0.949
θd,C 0.3053
θe,C 0.5439
θg,d 1.2354
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.908
2400 0.83
Other Properties
2000 0.971
/)
2 ) 890
2 ) 358
1400 0.987
1600 0.993
Knoop Hardness Hk[Class]
Pa)
1000 0.997
1200 0.997
θh,g 0.4471
nHe-Ne 0.6328 1.56188 ni-nF' 0.015702
nC' 0.64385 1.56145 nF'-ne 0.004766
nC 0.65627 1.56100 ne-nC' 0.004603
nr 0.70652 1.55938 nC'-nt 0.008231
nA' 0.76819 1.55774 ni-ng 0.011208
ns 0.85211 1.55593 nh-ng 0.004155
nt 1.01398 1.55322 ng-nF 0.005021
n1129 1.12864 1.55164 ng-nd 0.011477
n1530 1.52958 1.54667 ne-nC 0.005055
n1970 1.97009 1.54083 nd-nC 0.002838
n2325 2.32542 1.53530 nC-nA' 0.003265
Refractive Index nd
Refractive Indices Partial Dispersions
S-BAL41 Code(d) 564607 Code(e) 566604
(+100~+300)
ΔθC,t 0.0057
ΔθC,A' 0.0019
350 0.925
360 0.960
θd,C 0.3054
θe,C 0.5439
θg,d 1.2349
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.917
2400 0.86
Other Properties
2000 0.973
/)
2 ) 847
2 ) 340
1400 0.987
1600 0.994
Knoop Hardness Hk[Class]
Pa)
1000 0.997
1200 0.997
θh,g 0.4505
nHe-Ne 0.6328 1.58106 ni-nF' 0.016724
nC' 0.64385 1.58061 nF'-ne 0.005051
nC 0.65627 1.58014 ne-nC' 0.004854
nr 0.70652 1.57844 nC'-nt 0.008531
nA' 0.76819 1.57673 ni-ng 0.011946
ns 0.85211 1.57485 nh-ng 0.004424
nt 1.01398 1.57208 ng-nF 0.005337
n1129 1.12864 1.57048 ng-nd 0.012171
n1530 1.52958 1.56557 ne-nC 0.005329
n1970 1.97009 1.55992 nd-nC 0.002987
n2325 2.32542 1.55463 nC-nA' 0.003413
Refractive Index nd
Refractive Indices Partial Dispersions
S-BAL42 Code(d) 583594 Code(e) 585591
(+100~+300)
ΔθC,t -0.0050
ΔθC,A' -0.0004
290 0.03
350 0.932
360 0.964
θd,C 0.3041
θe,C 0.5426
θg,d 1.2393
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.919
2400 0.89
Other Properties
2000 0.962
/)
2 ) 762
2 ) 306
1400 0.995
1600 0.994
Knoop Hardness Hk[Class]
Pa)
1000 0.998
1200 0.998
θh,g 0.4915
nHe-Ne 0.6328 1.60276 ni-nF' 0.026102
nC' 0.64385 1.60215 nF'-ne 0.007272
nC 0.65627 1.60151 ne-nC' 0.006754
nr 0.70652 1.59921 nC'-nt 0.011028
nA' 0.76819 1.59695 ni-ng 0.018992
ns 0.85211 1.59453 nh-ng 0.006811
nt 1.01398 1.59113 ng-nF 0.007927
n1129 1.12864 1.58926 ng-nd 0.017671
n1530 1.52958 1.58402 ne-nC 0.007402
n1970 1.97009 1.57850 nd-nC 0.004113
n2325 2.32542 1.57351 nC-nA' 0.004557
Refractive Index nd
Refractive Indices Partial Dispersions
(+100~+300)
ΔθC,t -0.0026
ΔθC,A' 0.0001
350 0.06
360 0.41
θd,C 0.2968
θe,C 0.5342
θg,d 1.2752
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.932
2400 0.86
Other Properties
2000 0.976
/)
2 ) 904
2 ) 361
1400 0.992
1600 0.995
Knoop Hardness Hk[Class]
(-30~+70)
Mechanical Properties
1000 0.998
1200 0.998
θh,g 0.4863
nHe-Ne 0.6328 1.63635 ni-nF' 0.026505
nC' 0.64385 1.63573 nF'-ne 0.007456
nC 0.65627 1.63506 ne-nC' 0.006958
nr 0.70652 1.63268 nC'-nt 0.011505
nA' 0.76819 1.63033 ni-ng 0.019244
ns 0.85211 1.62781 nh-ng 0.006929
nt 1.01398 1.62422 ng-nF 0.008097
n1129 1.12864 1.62223 ng-nd 0.018101
n1530 1.52958 1.61653 ne-nC 0.007627
n1970 1.97009 1.61040 nd-nC 0.004243
n2325 2.32542 1.60480 nC-nA' 0.004725
Refractive Index nd
Refractive Indices Partial Dispersions
S-BAM12 Code(d) 639449 Code(e) 643446
(+100~+300)
ΔθC,t 0.0034
ΔθC,A' 0.0014
350 0.13
360 0.49
θd,C 0.2978
θe,C 0.5353
θg,d 1.2705
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0211
ΔθC,A' 0.0044
290 0.08
350 0.968
360 0.984
θd,C 0.3075
θe,C 0.5461
θg,d 1.2278
Refractive Indices Partial Dispersions
n1970 1.97009 1.49462 nd-nC 0.002475
n2325 2.32542 1.48899 nC-nA' 0.002882
n1129 1.12864 1.50536 ng-nd 0.009884
n1530 1.52958 1.50050 ne-nC 0.004396
ns 0.85211 1.50935 nh-ng 0.003554
nt 1.01398 1.50686 ng-nF 0.004309
nr 0.70652 1.51243 nC'-nt 0.007389
nA' 0.76819 1.51097 ni-ng 0.009571
nC' 0.64385 1.51425 nF'-ne 0.004107
nC 0.65627 1.51386 ne-nC' 0.004000
nD 0.58929 1.51626
nHe-Ne 0.6328 1.51462 ni-nF' 0.013427
ne 0.54607 1.51825
nF 0.48613 1.52191
θh,g 0.4415
1000 0.996
1200 0.995
/)
2 ) 800
2 ) 332
1400 0.982
1600 0.991
Knoop Hardness Hk[Class]
(-30~+70)
60~80
20~40
40~60
OHARA 17-04
0~20
2200 0.89
2400 0.85
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t -0.0150
ΔθC,A' -0.0022
Refractive Indices Partial Dispersions
n1970 1.97009 1.58374 nd-nC 0.003235
n2325 2.32542 1.57874 nC-nA' 0.003662
n1129 1.12864 1.59398 ng-nd 0.013318
n1530 1.52958 1.58913 ne-nC 0.005783
ns 0.85211 1.59849 nh-ng 0.004885
nt 1.01398 1.59561 ng-nF 0.005862
nr 0.70652 1.60231 nC'-nt 0.009048
nA' 0.76819 1.60048 ni-ng 0.013244
nC' 0.64385 1.60466 nF'-ne 0.005521
nC 0.65627 1.60414 ne-nC' 0.005269
nD 0.58929 1.60728
nHe-Ne 0.6328 1.60514 ni-nF' 0.018493
ne 0.54607 1.60993
nF 0.48613 1.61483
θh,g 0.4569
A1 8.67168676E-01
1000 0.998
1200 0.998
/)
2 ) 780
2 ) 309
1400 0.994
1600 0.997
Knoop Hardness Hk[Class]
Pa)
2200 0.951
2400 0.89
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t -0.0082
ΔθC,A' -0.0006
Refractive Indices Partial Dispersions
n1970 1.97009 1.59809 nd-nC 0.003310
n2325 2.32542 1.59271 nC-nA' 0.003759
n1129 1.12864 1.60898 ng-nd 0.013570
n1530 1.52958 1.60386 ne-nC 0.005912
ns 0.85211 1.61368 nh-ng 0.004960
nt 1.01398 1.61069 ng-nF 0.005964
nr 0.70652 1.61761 nC'-nt 0.009326
nA' 0.76819 1.61573 ni-ng 0.013428
nC' 0.64385 1.62001 nF'-ne 0.005628
nC 0.65627 1.61949 ne-nC' 0.005386
nD 0.58929 1.62270
nHe-Ne 0.6328 1.62051 ni-nF' 0.018768
ne 0.54607 1.62540
nF 0.48613 1.63041
θh,g 0.4544
A1 9.45443081E-01
1000 0.997
1200 0.997
/)
2 ) 835
2 ) 330
1400 0.990
1600 0.993
Knoop Hardness Hk[Class]
Pa)
2200 0.913
2400 0.82
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0009
ΔθC,A' 0.0007
Refractive Indices Partial Dispersions
n1970 1.97009 1.57880 nd-nC 0.003033
n2325 2.32542 1.57300 nC-nA' 0.003482
n1129 1.12864 1.59013 ng-nd 0.012297
n1530 1.52958 1.58491 ne-nC 0.005405
ns 0.85211 1.59467 nh-ng 0.004461
nt 1.01398 1.59180 ng-nF 0.005385
nr 0.70652 1.59835 nC'-nt 0.008758
nA' 0.76819 1.59660 ni-ng 0.012043
nC' 0.64385 1.60056 nF'-ne 0.005105
nC 0.65627 1.60008 ne-nC' 0.004922
nD 0.58929 1.60302
nHe-Ne 0.6328 1.60101 ni-nF' 0.016863
ne 0.54607 1.60548
nF 0.48613 1.61002
θh,g 0.4486
1000 0.998
1200 0.998
/)
2 ) 849
2 ) 338
1400 0.990
1600 0.995
Knoop Hardness Hk[Class]
Pa)
2200 0.919
2400 0.81
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t -0.0035
ΔθC,A' -0.0001
Refractive Indices Partial Dispersions
n1970 1.97009 1.59797 nd-nC 0.003253
n2325 2.32542 1.59236 nC-nA' 0.003709
n1129 1.12864 1.60927 ng-nd 0.013304
n1530 1.52958 1.60399 ne-nC 0.005806
ns 0.85211 1.61399 nh-ng 0.004866
nt 1.01398 1.61100 ng-nF 0.005846
nr 0.70652 1.61789 nC'-nt 0.009259
nA' 0.76819 1.61603 ni-ng 0.013186
nC' 0.64385 1.62026 nF'-ne 0.005517
nC 0.65627 1.61974 ne-nC' 0.005288
nD 0.58929 1.62290
nHe-Ne 0.6328 1.62074 ni-nF' 0.018420
ne 0.54607 1.62555
nF 0.48613 1.63045
θh,g 0.4543
A1 9.53128328E-01
1000 0.998
1200 0.998
/)
2 ) 854
2 ) 338
1400 0.991
1600 0.994
Knoop Hardness Hk[Class]
Pa)
2200 0.918
2400 0.81
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t -0.0005
ΔθC,A' 0.0004
Refractive Indices Partial Dispersions
n1970 1.97009 1.59545 nd-nC 0.003135
n2325 2.32542 1.58957 nC-nA' 0.003595
n1129 1.12864 1.60702 ng-nd 0.012739
n1530 1.52958 1.60168 ne-nC 0.005589
ns 0.85211 1.61170 nh-ng 0.004632
nt 1.01398 1.60874 ng-nF 0.005584
nr 0.70652 1.61549 nC'-nt 0.009030
nA' 0.76819 1.61368 ni-ng 0.012520
nC' 0.64385 1.61778 nF'-ne 0.005286
nC 0.65627 1.61728 ne-nC' 0.005090
nD 0.58929 1.62032
nHe-Ne 0.6328 1.61824 ni-nF' 0.017519
ne 0.54607 1.62287
nF 0.48613 1.62757
θh,g 0.4501
1000 0.999
1200 0.999
/)
2 ) 878
2 ) 348
1400 0.992
1600 0.995
Knoop Hardness Hk[Class]
Pa)
2200 0.911
2400 0.79
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t -0.0097
ΔθC,A' -0.0008
Refractive Indices Partial Dispersions
n1970 1.97009 1.61314 nd-nC 0.003488
n2325 2.32542 1.60779 nC-nA' 0.003946
n1129 1.12864 1.62411 ng-nd 0.014367
n1530 1.52958 1.61892 ne-nC 0.006236
ns 0.85211 1.62896 nh-ng 0.005271
nt 1.01398 1.62586 ng-nF 0.006324
nr 0.70652 1.63308 nC'-nt 0.009742
nA' 0.76819 1.63111 ni-ng 0.014291
nC' 0.64385 1.63560 nF'-ne 0.005956
nC 0.65627 1.63505 ne-nC' 0.005682
nD 0.58929 1.63844
nHe-Ne 0.6328 1.63612 ni-nF' 0.019954
ne 0.54607 1.64129
nF 0.48613 1.64658
θh,g 0.4571
A1 9.27886025E-01
1000 0.997
1200 0.997
/)
2 ) 885
2 ) 349
1400 0.993
1600 0.994
Knoop Hardness Hk[Class]
Pa)
2200 0.924
2400 0.84
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t -0.0089
ΔθC,A' -0.0005
Refractive Indices Partial Dispersions
n1970 1.97009 1.63145 nd-nC 0.003888
n2325 2.32542 1.62613 nC-nA' 0.004361
n1129 1.12864 1.64264 ng-nd 0.016250
n1530 1.52958 1.63727 ne-nC 0.006969
ns 0.85211 1.64785 nh-ng 0.006049
nt 1.01398 1.64450 ng-nF 0.007196
nr 0.70652 1.65237 nC'-nt 0.010664
nA' 0.76819 1.65019 ni-ng 0.016516
nC' 0.64385 1.65517 nF'-ne 0.006722
nC 0.65627 1.65455 ne-nC' 0.006354
nD 0.58929 1.65833
nHe-Ne 0.6328 1.65574 ni-nF' 0.022963
ne 0.54607 1.66152
nF 0.48613 1.66749
θh,g 0.4674
1000 0.996
1200 0.997
/)
2 ) 951
2 ) 374
1400 0.995
1600 0.995
Knoop Hardness Hk[Class]
Pa)
2200 0.947
2400 0.87
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t -0.0053
ΔθC,A' -0.0003
Refractive Indices Partial Dispersions
n1970 1.97009 1.59173 nd-nC 0.003717
n2325 2.32542 1.58652 nC-nA' 0.004166
n1129 1.12864 1.60260 ng-nd 0.015632
n1530 1.52958 1.59740 ne-nC 0.006666
ns 0.85211 1.60760 nh-ng 0.005882
nt 1.01398 1.60439 ng-nF 0.006948
nr 0.70652 1.61192 nC'-nt 0.010200
nA' 0.76819 1.60984 ni-ng 0.016179
nC' 0.64385 1.61459 nF'-ne 0.006456
nC 0.65627 1.61401 ne-nC' 0.006078
nD 0.58929 1.61761
nHe-Ne 0.6328 1.61514 ni-nF' 0.022406
ne 0.54607 1.62067
nF 0.48613 1.62641
θh,g 0.4743
1000 0.996
1200 0.996
/)
2 ) 853
2 ) 339
1400 0.994
1600 0.995
Knoop Hardness Hk[Class]
Pa)
2200 0.944
2400 0.88
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t -0.0080
ΔθC,A' -0.0008
Refractive Indices Partial Dispersions
n1970 1.97009 1.62205 nd-nC 0.003683
n2325 2.32542 1.61657 nC-nA' 0.004150
n1129 1.12864 1.63336 ng-nd 0.015333
n1530 1.52958 1.62799 ne-nC 0.006595
ns 0.85211 1.63842 nh-ng 0.005706
nt 1.01398 1.63518 ng-nF 0.006785
nr 0.70652 1.64274 nC'-nt 0.010215
nA' 0.76819 1.64067 ni-ng 0.015599
nC' 0.64385 1.64540 nF'-ne 0.006342
nC 0.65627 1.64482 ne-nC' 0.006011
nD 0.58929 1.64839
nHe-Ne 0.6328 1.64595 ni-nF' 0.021678
ne 0.54607 1.65141
nF 0.48613 1.65705
θh,g 0.4665
1000 0.997
1200 0.997
/)
2 ) 862
2 ) 339
1400 0.993
1600 0.993
Knoop Hardness Hk[Class]
Pa)
2200 0.925
2400 0.82
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.87
2400 0.61
Other Properties
2000 0.961
/)
2 ) 1057
2 ) 416
1400 0.993
1600 0.994
Knoop Hardness Hk[Class]
Pa)
1000 0.996
1200 0.996
θh,g 0.4440
A1 9.96356844E-01
nHe-Ne 0.6328 1.63774 ni-nF' 0.017881
nC' 0.64385 1.63725 nF'-ne 0.005442
nC 0.65627 1.63673 ne-nC' 0.005288
nr 0.70652 1.63484 nC'-nt 0.009734
nA' 0.76819 1.63293 ni-ng 0.012761
ns 0.85211 1.63078 nh-ng 0.004730
nt 1.01398 1.62752 ng-nF 0.005721
n1129 1.12864 1.62555 ng-nd 0.013103
n1530 1.52958 1.61917 ne-nC 0.005812
n1970 1.97009 1.61138 nd-nC 0.003271
n2325 2.32542 1.60385 nC-nA' 0.003802
Refractive Index nd
Refractive Indices Partial Dispersions
S-BSM81 Code(d) 640601 Code(e) 643599
(+100~+300)
ΔθC,t 0.0359
ΔθC,A' 0.0082
290 0.01
350 0.71
360 0.82
θd,C 0.3070
θe,C 0.5456
θg,d 1.2300
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.997
2400 0.996
Other Properties
2000 0.999
/)
2 ) 727
2 ) 280
1400 0.999
1600 0.999
Knoop Hardness Hk[Class]
Pa)
1000 0.999
1200 0.999
θh,g 0.4427
nHe-Ne 0.6328 1.49571 ni-nF' 0.010184
nC' 0.64385 1.49543 nF'-ne 0.003121
nC 0.65627 1.49514 ne-nC' 0.003022
nr 0.70652 1.49407 nC'-nt 0.005330
nA' 0.76819 1.49300 ni-ng 0.007253
ns 0.85211 1.49183 nh-ng 0.002698
nt 1.01398 1.49010 ng-nF 0.003276
n1129 1.12864 1.48911 ng-nd 0.007508
n1530 1.52958 1.48610 ne-nC 0.003319
n1970 1.97009 1.48269 nd-nC 0.001863
n2325 2.32542 1.47952 nC-nA' 0.002134
Refractive Index nd
Refractive Indices Partial Dispersions
S-FPL51 Code(d) 497816 Code(e) 498810
(+100~+300)
ΔθC,t -0.1035
ΔθC,A' -0.0246
290 0.05
350 0.947
360 0.975
θd,C 0.3057
θe,C 0.5445
θg,d 1.2318
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.997
2400 0.998
Other Properties
2000 0.998
/)
2 ) 691
2 ) 265
1400 0.998
1600 0.998
Knoop Hardness Hk[Class]
Pa)
1000 0.997
1200 0.998
θh,g 0.4388
A1 9.83532327E-01
nHe-Ne 0.6328 1.43777 ni-nF' 0.007645
nC' 0.64385 1.43756 nF'-ne 0.002361
nC 0.65627 1.43733 ne-nC' 0.002294
nr 0.70652 1.43652 nC'-nt 0.004097
nA' 0.76819 1.43570 ni-ng 0.005437
ns 0.85211 1.43480 nh-ng 0.002028
nt 1.01398 1.43346 ng-nF 0.002468
n1129 1.12864 1.43269 ng-nd 0.005673
n1530 1.52958 1.43032 ne-nC 0.002521
n1970 1.97009 1.42762 nd-nC 0.001417
n2325 2.32542 1.42512 nC-nA' 0.001631
Refractive Index nd
Refractive Indices Partial Dispersions
S-FPL53 Code(d) 439950 Code(e) 440946
(+100~+300)
ΔθC,t -0.1548
ΔθC,A' -0.0381
290 0.12
350 0.967
360 0.985
θd,C 0.3066
θe,C 0.5454
θg,d 1.2274
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t -0.1498
ΔθC,A' -0.0371
Refractive Indices Partial Dispersions
n1970 1.97009 1.42747 nd-nC 0.001422
n2325 2.32542 1.42492 nC-nA' 0.001639
n1129 1.12864 1.43264 ng-nd 0.005688
n1530 1.52958 1.43023 ne-nC 0.002529
ns 0.85211 1.43478 nh-ng 0.002031
nt 1.01398 1.43343 ng-nF 0.002475
nr 0.70652 1.43651 nC'-nt 0.004125
nA' 0.76819 1.43569 ni-ng 0.005445
nC' 0.64385 1.43755 nF'-ne 0.002366
nC 0.65627 1.43733 ne-nC' 0.002302
nD 0.58929 1.43871
nHe-Ne 0.6328 1.43777 ni-nF' 0.007660
ne 0.54607 1.43986
nF 0.48613 1.44196
θh,g 0.4382
A1 8.39067682E-01
1000 0.995
1200 0.996
/)
2 ) 698
2 ) 268
1400 0.997
1600 0.997
Knoop Hardness Hk[Class]
Pa)
2200 0.996
2400 0.997
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t -0.0692
ΔθC,A' -0.0149
Refractive Indices Partial Dispersions
n1970 1.97009 1.57631 nd-nC 0.002665
n2325 2.32542 1.57252 nC-nA' 0.003015
n1129 1.12864 1.58426 ng-nd 0.010904
n1530 1.52958 1.58045 ne-nC 0.004761
ns 0.85211 1.58791 nh-ng 0.003960
nt 1.01398 1.58557 ng-nF 0.004782
nr 0.70652 1.59105 nC'-nt 0.007411
nA' 0.76819 1.58954 ni-ng 0.010681
nC' 0.64385 1.59298 nF'-ne 0.004528
nC 0.65627 1.59255 ne-nC' 0.004338
nD 0.58929 1.59514
nHe-Ne 0.6328 1.59337 ni-nF' 0.014961
ne 0.54607 1.59732
nF 0.48613 1.60134
θh,g 0.4507
A1 7.61242785E-01
1000 0.996
1200 0.997
/)
2 ) 757
2 ) 294
1400 0.997
1600 0.997
Knoop Hardness Hk[Class]
Pa)
2200 0.989
2400 0.983
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t -0.0769
ΔθC,A' -0.0177
Refractive Indices Partial Dispersions
n1970 1.97009 1.52105 nd-nC 0.002196
n2325 2.32542 1.51738 nC-nA' 0.002510
n1129 1.12864 1.52849 ng-nd 0.008885
n1530 1.52958 1.52500 ne-nC 0.003915
ns 0.85211 1.53167 nh-ng 0.003203
nt 1.01398 1.52965 ng-nF 0.003882
nr 0.70652 1.53430 nC'-nt 0.006255
nA' 0.76819 1.53304 ni-ng 0.008618
nC' 0.64385 1.53590 nF'-ne 0.003692
nC 0.65627 1.53555 ne-nC' 0.003565
nD 0.58929 1.53769
nHe-Ne 0.6328 1.53623 ni-nF' 0.012092
ne 0.54607 1.53947
nF 0.48613 1.54275
θh,g 0.4449
A1 8.09407286E-01
1000 0.996
1200 0.997
/)
2 ) 806
2 ) 312
1400 0.997
1600 0.996
Knoop Hardness Hk[Class]
Pa)
2200 0.987
2400 0.984
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
2200 0.996
2400 0.995
Other Properties
2000 0.998
/)
2 ) 747
2 ) 289
1400 0.999
1600 0.998
Knoop Hardness Hk[Class]
(-30~+70)
Mechanical Properties
1000 0.997
1200 0.998
θh,g 0.4451
A1 6.85585084E-01
nHe-Ne 0.6328 1.52695 ni-nF' 0.011612
nC' 0.64385 1.52664 nF'-ne 0.003546
nC 0.65627 1.52630 ne-nC' 0.003422
nr 0.70652 1.52510 nC'-nt 0.005985
nA' 0.76819 1.52390 ni-ng 0.008275
ns 0.85211 1.52258 nh-ng 0.003076
nt 1.01398 1.52065 ng-nF 0.003729
n1129 1.12864 1.51955 ng-nd 0.008533
n1530 1.52958 1.51625 ne-nC 0.003757
n1970 1.97009 1.51254 nd-nC 0.002107
n2325 2.32542 1.50911 nC-nA' 0.002406
Refractive Index nd
Refractive Indices Partial Dispersions
(+100~+300)
ΔθC,t -0.0879
ΔθC,A' -0.0205
290 0.09
350 0.934
360 0.968
θd,C 0.3049
θe,C 0.5436
θg,d 1.2347
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
3.0 2.0
Strain Point StP () 457 Annealing Point AP () 491 Transformation Temperature Tg () 500 Yield Point At () 568 Softening Point SP () 679
520 5 Expansion Coefficients 90
α (10-7/) 95 2.87 Thermal Conductivity λ W/(mK) 1.01
t C' He-Ne D e F' g -1.3 -1.1 -1.1 -1.0 -0.9 -0.8 -0.6 -1.2 -1.0 -1.0 -0.9 -0.9 -0.7 -0.5 -1.1 -0.9 -0.9 -0.9 -0.8 -0.6 -0.4 -1.1 -0.9 -0.9 -0.8 -0.7 -0.5 -0.3 -1.0 -0.7 -0.7 -0.6 -0.6 -0.4 -0.2 -0.8 -0.5 -0.5 -0.4 -0.3 -0.1 0.1
Copyright© OHARA INC. All Rights Reserved.
2200 0.88 2400 0.87
Temperature Coefficients of Refractive Index
2000 0.971
300
0.999 650 0.999 700 0.999
Coloring 300 λ5 265
Internal transmission 304 277
60~80
-20~ 0 2.46
Young's Modulus E (108N/m2) 623
Rigidity Modulus G (108N/m2) 254 1400 0.982 1600 0.992 1800 0.985Poisson's Ratio σ 0.227
Knoop Hardness Hk[Class] Abrasion Aa 117 Photoelastic Constant β nm/(cm105Pa)
(-30~+70)
Mechanical Properties
Acid Resistance(Surface) Group SR Thermal Properties
800 0.999 Weathering Resistance(Surface) Group W(S)
B3 1.29599726E+02
480
Δθg,d 0.0020 0.999
A2 1.40056154E-02 θ'F',e 0.5049
θi,g 1.1668 θ'C',t 0.9363 θ'e,C' 0.4951
ng 0.435835 1.49596
θC,t 0.8924 θC,A' 0.3633
nHe-Ne 0.6328 1.48601 ni-nF' 0.011390
nC' 0.64385 1.48569 nF'-ne 0.003526
nC 0.65627 1.48534 ne-nC' 0.003458
nr 0.70652 1.48410 nC'-nt 0.006539
nA' 0.76819 1.48282 ni-ng 0.008099
ns 0.85211 1.48138 nh-ng 0.003019
nt 1.01398 1.47915 ng-nF 0.003679
n1129 1.12864 1.47778 ng-nd 0.008474
n1530 1.52958 1.47324 ne-nC 0.003803
n1970 1.97009 1.46765 nd-nC 0.002146
n2325 2.32542 1.46227 nC-nA' 0.002522
Refractive Index nd 1.48749
Abbe Number νd 70.23
S-FSL 5 Code(d) 487702 Code(e) 489701
(+100~+300)
Deviation of Relative Dispersions Δθfrom "Normal" ΔθC,t 0.0162 ΔθC,A' 0.0023
0.13 290 0.43
θd,C 0.3092 θe,C 0.5479 θg,d 1.2209
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0088
ΔθC,A' 0.0010
Refractive Indices Partial Dispersions
n1970 1.97009 1.56154 nd-nC 0.004906
n2325 2.32542 1.55603 nC-nA' 0.005365
n1129 1.12864 1.57357 ng-nd 0.021838
n1530 1.52958 1.56767 ne-nC 0.008875
ns 0.85211 1.57962 nh-ng 0.008800
nt 1.01398 1.57569 ng-nF 0.009959
nr 0.70652 1.58508 nC'-nt 0.012872
nA' 0.76819 1.58243 ni-ng 0.025202
nC' 0.64385 1.58856 nF'-ne 0.008924
nC 0.65627 1.58779 ne-nC' 0.008107
nD 0.58929 1.59255
nHe-Ne 0.6328 1.58929 ni-nF' 0.034147
ne 0.54607 1.59667
nF 0.48613 1.60458
θh,g 0.5243
1000 0.999
1200 0.999
/)
2 ) 653
2 ) 264
1400 0.996
1600 0.994
Knoop Hardness Hk[Class]
Pa)
2200 0.959
2400 0.953
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
6.0 6.3 6.6 7.3 7.8
6.0 6.3 6.6 7.3 7.9
6.1 6.4 6.7 7.4 8.1
6.2 6.5 6.8 7.6 8.3
6.4 6.7 7.0 7.8 8.6
6.6 6.9 7.2 8.1 8.9
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0097
ΔθC,A' 0.0037
Refractive Indices Partial Dispersions
n1970 1.97009 1.74972 nd-nC 0.005312
n2325 2.32542 1.74265 nC-nA' 0.005923
n1129 1.12864 1.76452 ng-nd 0.022480
n1530 1.52958 1.75740 ne-nC 0.009539
ns 0.85211 1.77150 nh-ng 0.008492
nt 1.01398 1.76700 ng-nF 0.010012
nr 0.70652 1.77761 nC'-nt 0.014419
nA' 0.76819 1.77466 ni-ng 0.023375
nC' 0.64385 1.78142 nF'-ne 0.009279
nC 0.65627 1.78058 ne-nC' 0.008700
nD 0.58929 1.78574
nHe-Ne 0.6328 1.78221 ni-nF' 0.032349
ne 0.54607 1.79012
nF 0.48613 1.79836
θh,g 0.4776
1000 0.996
1200 0.996
/)
2 ) 1129
2 ) 435
1400 0.991
1600 0.989
Knoop Hardness Hk[Class]
Pa)
2200 0.89
2400 0.68
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0090
ΔθC,A' 0.0035
Refractive Indices Partial Dispersions
n1970 1.97009 1.76202 nd-nC 0.005637
n2325 2.32542 1.75495 nC-nA' 0.006258
n1129 1.12864 1.77703 ng-nd 0.024038
n1530 1.52958 1.76976 ne-nC 0.010136
ns 0.85211 1.78430 nh-ng 0.009152
nt 1.01398 1.77961 ng-nF 0.010740
nr 0.70652 1.79073 nC'-nt 0.015163
nA' 0.76819 1.78762 ni-ng 0.025292
nC' 0.64385 1.79477 nF'-ne 0.009910
nC 0.65627 1.79388 ne-nC' 0.009247
nD 0.58929 1.79935
nHe-Ne 0.6328 1.79560 ni-nF' 0.034921
ne 0.54607 1.80401
nF 0.48613 1.81281
θh,g 0.4833
1000 0.998
1200 0.997
/)
2 ) 1119
2 ) 431
1400 0.994
1600 0.993
Knoop Hardness Hk[Class]
Pa)
2200 0.910
2400 0.71
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
52.2 2.0
Strain Point StP () 553 Annealing Point AP () 576 Transformation Temperature Tg () 598 Yield Point At () 622 Softening Point SP () 651
620 6 Expansion Coefficients 60
α (10-7/) 73 2.31 Thermal Conductivity λ W/(mK) 0.852
t C' He-Ne D e F' g 8.5 9.5 9.5 9.8 10.2 11.0 11.9 8.6 9.6 9.6 9.9 10.3 11.2 12.1 8.7 9.7 9.7 10.1 10.5 11.4 12.3 8.7 9.8 9.8 10.2 10.6 11.5 12.5 8.8 9.9 10.0 10.3 10.7 11.7 12.7 9.0 10.1 10.2 10.5 11.0 12.0 13.1
Copyright© OHARA INC. All Rights Reserved.
2200 0.924 2400 0.75
Temperature Coefficients of Refractive Index
2000 0.967
300
0.998 650 0.999 700 0.999
Coloring 390 λ5 335
Internal transmission 365 334
60~80
-20~ 0 4.47
Young's Modulus E (108N/m2) 1098
Rigidity Modulus G (108N/m2) 418 1400 0.997 1600 0.996 1800 0.989Poisson's Ratio σ 0.313
Knoop Hardness Hk[Class] Abrasion Aa 66 Photoelastic Constant β nm/(cm105Pa)
(-30~+70)
Mechanical Properties
Acid Resistance(Surface) Group SR Thermal Properties
800 0.999 Weathering Resistance(Surface) Group W(S)
B3 9.66037300E+01
480
Δθg,d -0.0068 0.999
A2 2.39854589E-01 θ'F',e 0.5176
θi,g 1.3350 θ'C',t 0.7821 θ'e,C' 0.4824
ng 0.435835 1.82356
θC,t 0.7446 θC,A' 0.3288
nHe-Ne 0.6328 1.79561 ni-nF' 0.034898
nC' 0.64385 1.79478 nF'-ne 0.009915
nC 0.65627 1.79389 ne-nC' 0.009239
nr 0.70652 1.79076 nC'-nt 0.014980
nA' 0.76819 1.78767 ni-ng 0.025268
ns 0.85211 1.78438 nh-ng 0.009149
nt 1.01398 1.77980 ng-nF 0.010742
n1129 1.12864 1.77732 ng-nd 0.024043
n1530 1.52958 1.77050 ne-nC 0.010125
n1970 1.97009 1.76345 nd-nC 0.005627
n2325 2.32542 1.75708 nC-nA' 0.006224
Refractive Index nd 1.79952
Abbe Number νd 42.24
S-LAH52Q Code(d) 800422 Code(e) 804420
(+100~+300)
Deviation of Relative Dispersions Δθfrom "Normal" ΔθC,t -0.0003 ΔθC,A' 0.0017
290
θd,C 0.2973 θe,C 0.5349 θg,d 1.2702
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0096
ΔθC,A' 0.0034
Refractive Indices Partial Dispersions
n1970 1.97009 1.76764 nd-nC 0.005850
n2325 2.32542 1.76051 nC-nA' 0.006479
n1129 1.12864 1.78287 ng-nd 0.025076
n1530 1.52958 1.77546 ne-nC 0.010527
ns 0.85211 1.79034 nh-ng 0.009607
nt 1.01398 1.78551 ng-nF 0.011229
nr 0.70652 1.79699 nC'-nt 0.015661
nA' 0.76819 1.79377 ni-ng 0.026650
nC' 0.64385 1.80117 nF'-ne 0.010329
nC 0.65627 1.80025 ne-nC' 0.009606
nD 0.58929 1.80592
nHe-Ne 0.6328 1.80203 ni-nF' 0.036720
ne 0.54607 1.81078
nF 0.48613 1.81994
θh,g 0.4877
1000 0.999
1200 0.999
/)
2 ) 1127
2 ) 434
1400 0.997
1600 0.996
Knoop Hardness Hk[Class]
Pa)
2200 0.915
2400 0.72
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0027
ΔθC,A' 0.0020
Refractive Indices Partial Dispersions
n1970 1.97009 1.76865 nd-nC 0.005841
n2325 2.32542 1.76201 nC-nA' 0.006450
n1129 1.12864 1.78309 ng-nd 0.025106
n1530 1.52958 1.77600 ne-nC 0.010517
ns 0.85211 1.79041 nh-ng 0.009639
nt 1.01398 1.78566 ng-nF 0.011252
nr 0.70652 1.79701 nC'-nt 0.015520
nA' 0.76819 1.79381 ni-ng 0.026774
nC' 0.64385 1.80118 nF'-ne 0.010339
nC 0.65627 1.80026 ne-nC' 0.009598
nD 0.58929 1.80593
nHe-Ne 0.6328 1.80204 ni-nF' 0.036865
ne 0.54607 1.81078
nF 0.48613 1.81995
θh,g 0.4894
1000 0.999
1200 0.999
/)
2 ) 1135
2 ) 434
1400 0.996
1600 0.995
Knoop Hardness Hk[Class]
Pa)
2200 0.916
2400 0.73
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0091
ΔθC,A' 0.0037
Refractive Indices Partial Dispersions
n1970 1.97009 1.79602 nd-nC 0.005826
n2325 2.32542 1.78870 nC-nA' 0.006476
n1129 1.12864 1.81154 ng-nd 0.024749
n1530 1.52958 1.80402 ne-nC 0.010471
ns 0.85211 1.81906 nh-ng 0.009373
nt 1.01398 1.81420 ng-nF 0.011036
nr 0.70652 1.82572 nC'-nt 0.015697
nA' 0.76819 1.82250 ni-ng 0.025830
nC' 0.64385 1.82990 nF'-ne 0.010212
nC 0.65627 1.82898 ne-nC' 0.009552
nD 0.58929 1.83464
nHe-Ne 0.6328 1.83076 ni-nF' 0.035722
ne 0.54607 1.83945
nF 0.48613 1.84852
θh,g 0.4797
1000 0.999
1200 0.999
/)
2 ) 1178
2 ) 470
1400 0.997
1600 0.995
Knoop Hardness Hk[Class]
Pa)
2200 0.909
2400 0.71
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0061
ΔθC,A' 0.0032
Refractive Indices Partial Dispersions
n1970 1.97009 1.79652 nd-nC 0.005822
n2325 2.32542 1.78945 nC-nA' 0.006462
n1129 1.12864 1.81164 ng-nd 0.024741
n1530 1.52958 1.80427 ne-nC 0.010464
ns 0.85211 1.81910 nh-ng 0.009365
nt 1.01398 1.81428 ng-nF 0.011032
nr 0.70652 1.82574 nC'-nt 0.015630
nA' 0.76819 1.82253 ni-ng 0.025786
nC' 0.64385 1.82991 nF'-ne 0.010210
nC 0.65627 1.82899 ne-nC' 0.009546
nD 0.58929 1.83464
nHe-Ne 0.6328 1.83077 ni-nF' 0.035675
ne 0.54607 1.83945
nF 0.48613 1.84852
θh,g 0.4795
1000 0.999
1200 0.999
/)
2 ) 1223
2 ) 472
1400 0.997
1600 0.996
Knoop Hardness Hk[Class]
Pa)
2200 0.920
2400 0.74
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0018
ΔθC,A' 0.0026
Refractive Indices Partial Dispersions
n1970 1.97009 1.84264 nd-nC 0.006437
n2325 2.32542 1.83590 nC-nA' 0.007103
n1129 1.12864 1.85776 ng-nd 0.027500
n1530 1.52958 1.85023 ne-nC 0.011586
ns 0.85211 1.86572 nh-ng 0.010422
nt 1.01398 1.86054 ng-nF 0.012276
nr 0.70652 1.87298 nC'-nt 0.017035
nA' 0.76819 1.86946 ni-ng 0.028677
nC' 0.64385 1.87757 nF'-ne 0.011346
nC 0.65627 1.87656 ne-nC' 0.010573
nD 0.58929 1.88281
nHe-Ne 0.6328 1.87852 ni-nF' 0.039682
ne 0.54607 1.88815
nF 0.48613 1.89822
θh,g 0.4811
1000 0.995
1200 0.996
/)
2 ) 1268
2 ) 487
1400 0.996
1600 0.996
Knoop Hardness Hk[Class]
Pa)
2200 0.956
2400 0.84
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0036
ΔθC,A' 0.0030
290 0.02
350 0.71
360 0.81
θd,C 0.3000
θe,C 0.5381
θg,d 1.2568
Refractive Indices Partial Dispersions
n1970 1.97009 1.78033 nd-nC 0.005251
n2325 2.32542 1.77345 nC-nA' 0.005870
n1129 1.12864 1.79483 ng-nd 0.021997
n1530 1.52958 1.78784 ne-nC 0.009418
ns 0.85211 1.80174 nh-ng 0.008188
nt 1.01398 1.79729 ng-nF 0.009745
nr 0.70652 1.80780 nC'-nt 0.014289
nA' 0.76819 1.80488 ni-ng 0.022341
nC' 0.64385 1.81158 nF'-ne 0.009100
nC 0.65627 1.81075 ne-nC' 0.008588
nD 0.58929 1.81585
nHe-Ne 0.6328 1.81236 ni-nF' 0.031071
ne 0.54607 1.82017
nF 0.48613 1.82825
θh,g 0.4678
1000 0.995
1200 0.995
/)
2 ) 1250
2 ) 482
1400 0.995
1600 0.994
Knoop Hardness Hk[Class]
Pa)
2200 0.938
2400 0.76
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0114
ΔθC,A' 0.0036
Refractive Indices Partial Dispersions
n1970 1.97009 1.79205 nd-nC 0.006624
n2325 2.32542 1.78473 nC-nA' 0.007283
n1129 1.12864 1.80807 ng-nd 0.028781
n1530 1.52958 1.80018 ne-nC 0.011947
ns 0.85211 1.81627 nh-ng 0.011183
nt 1.01398 1.81094 ng-nF 0.012962
nr 0.70652 1.82370 nC'-nt 0.017477
nA' 0.76819 1.82009 ni-ng 0.031249
nC' 0.64385 1.82842 nF'-ne 0.011829
nC 0.65627 1.82738 ne-nC' 0.010907
nD 0.58929 1.83380
nHe-Ne 0.6328 1.82939 ni-nF' 0.042878
ne 0.54607 1.83932
nF 0.48613 1.84982
θh,g 0.4983
1000 0.997
1200 0.996
/)
2 ) 1248
2 ) 481
1400 0.993
1600 0.992
Knoop Hardness Hk[Class]
Pa)
2200 0.906
2400 0.72
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t -0.0019
ΔθC,A' 0.0010
Refractive Indices Partial Dispersions
n1970 1.97009 1.79430 nd-nC 0.006608
n2325 2.32542 1.78810 nC-nA' 0.007222
n1129 1.12864 1.80854 ng-nd 0.028810
n1530 1.52958 1.80135 ne-nC 0.011929
ns 0.85211 1.81641 nh-ng 0.011196
nt 1.01398 1.81125 ng-nF 0.012981
nr 0.70652 1.82374 nC'-nt 0.017174
nA' 0.76819 1.82017 ni-ng 0.031262
nC' 0.64385 1.82843 nF'-ne 0.011843
nC 0.65627 1.82739 ne-nC' 0.010892
nD 0.58929 1.83380
nHe-Ne 0.6328 1.82940 ni-nF' 0.042908
ne 0.54607 1.83932
nF 0.48613 1.84983
θh,g 0.4990
1000 0.998
1200 0.999
/)
2 ) 953
2 ) 366
1400 0.998
1600 0.995
Knoop Hardness Hk[Class]
(-30~+70)
60~80
20~40
40~60
OHARA 18-10
0~20
2200 0.927
2400 0.80
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0043
ΔθC,A' 0.0018
Refractive Indices Partial Dispersions
n1970 1.97009 1.79301 nd-nC 0.006601
n2325 2.32542 1.78608 nC-nA' 0.007235
n1129 1.12864 1.80833 ng-nd 0.028833
n1530 1.52958 1.80073 ne-nC 0.011914
ns 0.85211 1.81638 nh-ng 0.011289
nt 1.01398 1.81114 ng-nF 0.013018
nr 0.70652 1.82374 nC'-nt 0.017300
nA' 0.76819 1.82016 ni-ng 0.031732
nC' 0.64385 1.82844 nF'-ne 0.011838
nC 0.65627 1.82740 ne-nC' 0.010878
nD 0.58929 1.83380
nHe-Ne 0.6328 1.82941 ni-nF' 0.043414
ne 0.54607 1.83931
nF 0.48613 1.84981
θh,g 0.5036
1000 0.999
1200 0.999
/)
2 ) 1114
2 ) 445
1400 0.996
1600 0.993
Knoop Hardness Hk[Class]
Pa)
2200 0.905
2400 0.72
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0119
ΔθC,A' 0.0039
Refractive Indices Partial Dispersions
n1970 1.97009 1.76505 nd-nC 0.006022
n2325 2.32542 1.75781 nC-nA' 0.006658
n1129 1.12864 1.78056 ng-nd 0.025940
n1530 1.52958 1.77300 ne-nC 0.010845
ns 0.85211 1.78820 nh-ng 0.009994
nt 1.01398 1.78325 ng-nF 0.011642
nr 0.70652 1.79502 nC'-nt 0.016071
nA' 0.76819 1.79172 ni-ng 0.027810
nC' 0.64385 1.79932 nF'-ne 0.010675
nC 0.65627 1.79838 ne-nC' 0.009898
nD 0.58929 1.80422
nHe-Ne 0.6328 1.80021 ni-nF' 0.038252
ne 0.54607 1.80922
nF 0.48613 1.81870
θh,g 0.4918
1000 0.997
1200 0.997
/)
2 ) 1121
2 ) 433
1400 0.993
1600 0.992
Knoop Hardness Hk[Class]
(-30~+70)
60~80
20~40
40~60
OHARA 17-04
0~20
2200 0.89
2400 0.70
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
51.2 1.0
Strain Point StP () 626 Annealing Point AP () 654 Transformation Temperature Tg () 669 Yield Point At () 701 Softening Point SP () 732
580 6 Expansion Coefficients 79
α (10-7/) 93 1.39 Thermal Conductivity λ W/(mK) 0.738
t C' He-Ne D e F' g 0.4 1.2 1.2 1.5 1.8 2.5 3.3 0.4 1.1 1.2 1.4 1.7 2.5 3.3 0.4 1.2 1.2 1.5 1.8 2.6 3.5 0.4 1.2 1.3 1.5 1.9 2.7 3.6 0.4 1.3 1.3 1.6 2.0 2.8 3.8 0.5 1.4 1.5 1.7 2.1 3.0 4.0
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
Deviation of Relative Dispersions Δθfrom "Normal" ΔθC,t -0.0017 ΔθC,A' 0.0008
290
Code(d) 804396 Code(e) 809393
n1970 1.97009 1.76695 nd-nC 0.006003
n2325 2.32542 1.76063 nC-nA' 0.006597
n1129 1.12864 1.78098 ng-nd 0.026030
n1530 1.52958 1.77401 ne-nC 0.010825
ns 0.85211 1.78834 nh-ng 0.010090
nt 1.01398 1.78355 ng-nF 0.011710
nr 0.70652 1.79507 nC'-nt 0.015794
nA' 0.76819 1.79180 ni-ng 0.028188
nC' 0.64385 1.79934 nF'-ne 0.010704
nC 0.65627 1.79840 ne-nC' 0.009882
nD 0.58929 1.80422 nd 0.58756 1.80440 Relative Partial Dispersions
nHe-Ne 0.6328 1.80023 ni-nF' 0.038692
ne 0.54607 1.80922 nF 0.48613 1.81872
θC,t 0.7307 θC,A' 0.3246
1.94953915E-01 θ'F',e 0.5200
ni 0.365015 1.85862
θi,g 1.3870 θ'C',t 0.7672 θ'e,C' 0.4800
θ'i,F' 1.8795 400
Δθg,d -0.0017 0.996
A2
480
Acid Resistance(Surface) Group SR Thermal Properties
800 0.998
-20~ 0 4.45
Young's Modulus E (108N/m2) 1026
Rigidity Modulus G (108N/m2) 395 1400 0.998 1600 0.995 1800 0.987Poisson's Ratio σ 0.300
Knoop Hardness Hk[Class] Abrasion Aa 121
Photoelastic Constant β nm/(cm105Pa)
(-30~+70)
60~80
Internal Transmittance λ(nm) τ10mm
Coloring 415 λ5 345
Internal transmission 378 343
300
0.996 650 0.996 700 0.997
Temperature Coefficients of Refractive Index
2200 0.923 2400 0.77
Other Properties Bubble Quality Group B Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0148
ΔθC,A' 0.0050
Refractive Indices Partial Dispersions
n1970 1.97009 1.75220 nd-nC 0.005003
n2325 2.32542 1.74466 nC-nA' 0.005628
n1129 1.12864 1.76750 ng-nd 0.020881
n1530 1.52958 1.76026 ne-nC 0.008963
ns 0.85211 1.77433 nh-ng 0.007782
nt 1.01398 1.76996 ng-nF 0.009248
nr 0.70652 1.78018 nC'-nt 0.013830
nA' 0.76819 1.77737 ni-ng 0.021279
nC' 0.64385 1.78379 nF'-ne 0.008635
nC 0.65627 1.78300 ne-nC' 0.008171
nD 0.58929 1.78785
nHe-Ne 0.6328 1.78453 ni-nF' 0.029565
ne 0.54607 1.79196
nF 0.48613 1.79963
θh,g 0.4678
1000 0.997
1200 0.996
/)
2 ) 1224
2 ) 473
1400 0.995
1600 0.993
Knoop Hardness Hk[Class]
Pa)
2200 0.915
2400 0.68
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0135
ΔθC,A' 0.0048
Refractive Indices Partial Dispersions
n1970 1.97009 1.76741 nd-nC 0.005183
n2325 2.32542 1.75986 nC-nA' 0.005818
n1129 1.12864 1.78286 ng-nd 0.021694
n1530 1.52958 1.77552 ne-nC 0.009290
ns 0.85211 1.78987 nh-ng 0.008101
nt 1.01398 1.78538 ng-nF 0.009618
nr 0.70652 1.79590 nC'-nt 0.014259
nA' 0.76819 1.79300 ni-ng 0.022167
nC' 0.64385 1.79964 nF'-ne 0.008970
nC 0.65627 1.79882 ne-nC' 0.008470
nD 0.58929 1.80385
nHe-Ne 0.6328 1.80041 ni-nF' 0.030784
ne 0.54607 1.80811
nF 0.48613 1.81608
θh,g 0.4694
1000 0.999
1200 0.999
/)
2 ) 1220
2 ) 470
1400 0.997
1600 0.996
Knoop Hardness Hk[Class]
Pa)
2200 0.910
2400 0.68
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0066
ΔθC,A' 0.0034
Refractive Indices Partial Dispersions
n1970 1.97009 1.76833 nd-nC 0.005184
n2325 2.32542 1.76127 nC-nA' 0.005801
n1129 1.12864 1.78303 ng-nd 0.021734
n1530 1.52958 1.77597 ne-nC 0.009296
ns 0.85211 1.78991 nh-ng 0.008114
nt 1.01398 1.78548 ng-nF 0.009637
nr 0.70652 1.79590 nC'-nt 0.014154
nA' 0.76819 1.79302 ni-ng 0.022188
nC' 0.64385 1.79964 nF'-ne 0.008987
nC 0.65627 1.79882 ne-nC' 0.008476
nD 0.58929 1.80385
nHe-Ne 0.6328 1.80040 ni-nF' 0.030823
ne 0.54607 1.80811
nF 0.48613 1.81610
θh,g 0.4695
1000 0.999
1200 0.999
/)
2 ) 1223
2 ) 471
1400 0.998
1600 0.996
Knoop Hardness Hk[Class]
Pa)
2200 0.916
2400 0.72
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0161
ΔθC,A' 0.0052
Refractive Indices Partial Dispersions
n1970 1.97009 1.73786 nd-nC 0.004701
n2325 2.32542 1.73031 nC-nA' 0.005314
n1129 1.12864 1.75303 ng-nd 0.019473
n1530 1.52958 1.74590 ne-nC 0.008410
ns 0.85211 1.75960 nh-ng 0.007202
nt 1.01398 1.75541 ng-nF 0.008598
nr 0.70652 1.76514 nC'-nt 0.013137
nA' 0.76819 1.76248 ni-ng 0.019610
nC' 0.64385 1.76854 nF'-ne 0.008063
nC 0.65627 1.76780 ne-nC' 0.007664
nD 0.58929 1.77236
nHe-Ne 0.6328 1.76924 ni-nF' 0.027311
ne 0.54607 1.77621
nF 0.48613 1.78337
θh,g 0.4624
1000 0.998
1200 0.997
/)
2 ) 1219
2 ) 472
1400 0.993
1600 0.993
Knoop Hardness Hk[Class]
Pa)
2200 0.88
2400 0.64
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t -0.0039
ΔθC,A' -0.0005
Refractive Indices Partial Dispersions
n1970 1.97009 1.80685 nd-nC 0.007673
n2325 2.32542 1.80095 nC-nA' 0.008288
n1129 1.12864 1.82133 ng-nd 0.034299
n1530 1.52958 1.81380 ne-nC 0.013907
ns 0.85211 1.83004 nh-ng 0.013716
nt 1.01398 1.82429 ng-nF 0.015623
nr 0.70652 1.83838 nC'-nt 0.019490
nA' 0.76819 1.83430 ni-ng
nD 0.58929 1.85003
nHe-Ne 0.6328 1.84491 ni-nF'
θh,g 0.5206
1000 0.999
1200 0.999
/)
2 ) 1100
2 ) 429
1400 0.999
1600 0.998
Knoop Hardness Hk[Class]
Pa)
2200 0.982
2400 0.959
Other Properties
Specific Gravity d
The name of the glass type is the model number assigned based on the main components of the composition: large, medium, small refractive index and serial number.
ne νe nF'-nC'
α (10 -7
Copyright© OHARA INC. All Rights Reserved.
(+100~+300)
ΔθC,t 0.0049
ΔθC,A' 0.0015
Refractive Indices Partial Dispersions
n1970 1.97009 1.94642 nd-nC 0.010289
n2325 2.32542 1.93904 nC-nA' 0.011059
n1129 1.12864 1.96486 ng-nd 0.046416
n1530 1.52958 1.95518 ne-nC 0.018678
ns 0.85211 1.97630 nh-ng 0.018725
nt 1.01398 1.96873 ng-nF 0.021219
nr 0.70652 1.98739 nC'-nt 0.025885
nA' 0.76819 1.98195 ni-ng
nD 0.58929 2.00299
nHe-Ne 0.6328 1.99613 ni-nF'
θh,g 0.5277
1000 0.997
1200 0.998
/)
2 ) 1255
2 ) 484
1400 0.998