BASE

Spectral Photometry

32

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IES TM-30-15 inclusive

Color Your Light the Way You Want It Mavospec Base – Light RedefinedLight orchestrates space and determines how it effects the observer. Light gener-ates an atmosphere of suspense, supports the impulse to buy, increases produc-tivity, creates a sense of security or simply invites people to linger – just a few of the demands that have to be met through the successful use of light.

The development of LEDs with high luminous efficacy, and thus outstanding energy efficiency,

has opened up new creative options for lighting design, but at the same time it represents a

great challenge with regard to the achieved light effect.

Decisive Factors for Lighting Design The emitted light spectrum of an LED has entirely different characteristics than those of previ-

ously utilized light sources. LED brightness and color vary due to the manufacturing process.

Daylight, incandescent light bulbs and halogen lamps achieve the highest color rendering index of

100 – a value which can’t be reached at the moment with LED lamps. In addition to this, various

manufacturing lots of LEDs demonstrate distinct differences, so that even when LED lighting is

used exclusively, blended light environments occur which can no longer be adequately evaluated

by means of previously used measurements for the determination of light color and illuminance.

Successful Light Qualification An extended measurement of light quality is becoming more and more important for the im-

plementation of lighting concepts. Whereas with conventional lighting technology it has been

sufficient in the past to check illuminance and luminance, today it’s also necessary to take

spectrum, chromaticity, color temperature, color rendering index and flicker into consideration.

The Mavospec Base ascertains all of the relevant factors of your light and provides you with the

assurance that all of your requirements are being fulfilled. The compact, high-quality spectrom-

eter qualifies your light with high levels of precision, reads out the results clearly and concisely

at the color display and documents the measured values – day after day for all light sources.

WHAT’S THE COLOR OF SUCCESS?

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Perfect Light for Every Requirement Mavospec Base – Documented SecurityThe qualification of light is becoming a decisive factor for more and more industry sectors. The Mavospec Base provides you with precision support for your require-ments – from individual light sources right on up to the efficient evaluation of lighting situations.

LAMP DEVELOPMENT & MANUFACTURING

Process monitoring and quality assurance

by means of random samples and storage of

ascertained values for evaluation and incor-

poration into test systems via open interfaces.

INTERIOR DESIGN, LIGHTING DESIGN

Selection and coordination of various light

sources, verification of the results of planning

programs such as DIALux.

MEDICAL TECHNOLOGY

Testing of illuminance and color rendering

according to room classifications for dental

treatment rooms and dental laboratories.

WHOLESALE AND RETAIL

Quality assurance by means of examination,

verification, comparison and evaluation of the

light and color quality of various light sources,

and light sources from various suppliers.

ELECTRICAL INSTALLATION

Examination of supplied and installed lamps

with regard to light and color quality, as well

as for homogenous light color conformity.

HUMAN CENTRIC LIGHTING RESEARCH

Adjustment and examination of brightness

and color temperature during the course of

the day in order to determine the biological

influence of light on people.

WHAT’S THE COLOR OF CURIOSITY?

SHOP LIGHTING – Optimization of light in order to meet requirements for the presentation of

goods in the foods retailing sector and for true-color presentation of textiles and leather goods.

WORKPLACE LIGHTING – Perfect color rendering for exacting demands placed upon color selec-

tion and color monitoring in the graphics and chemicals industries, for hair care and cosmetics,

as well as for processing wood, ceramics, textiles, leather goods and jewelry.

PUBLIC LIGHTING – Assurance of standards-compliant lighting for streets and public areas during

the course of renovation, as well as where lighting is changed over to LED lamps.

EXHIBITIONS, MUSEUMS, LIBRARIES – Checking for adequate lighting and color rendering.

Evaluation of the spectrum with regard to spectral components which might cause damage.

STUDIO, STAGE AND FILM LIGHTING – Coordination of various light sources, white balancing,

evaluation of color rendering.

MONITORS, PROJECTORS, LARGE-FORMAT SCREENS – Examination and calibration of color

rendering, determination of displayable color space, color coordination for replacement parts.

76

Time of measurement: 08:16:07

Test object:

CompanyAddressZIP City

Measurement file: Test-M.CSVDate of measurement: 03.03.2017Time of measurement: 08:17:53Reference file: Test-R.CSVDate of measurement: 03.03.2017

-18,5TM30 Rg 99,8 97,5 -2,3

36W/840

-8,4

Ra

Phone number

Measurement protocol

-4,444,572,049,393,071,988,0

measurement3.356,21 lx

3.809 K

577 nm543 nm

67,9

-23,8-44,8

-39,0

measurement

TM30 Rf

PhilipsMaster TL-D Super 80

reference Δ

-49,2

-21,2-10,4 Saturation 3,2%

79,897,0 -17,1

93,7

First, last name of inspector

96,1 77,6

R2-4,3

98,995,385,8

91,788,857,586,8

94,1

96,097,296,696,696,296,6

-27,4-90,2

R14R15

R1

R12R13 96,1

99,395,1

Test location, Date

-27,4-7,1

-3,1

GAI 95,1 69,1 -26,0Re 95,7 70,2 -25,5

357,0 lm/W 157 lm/W

-6.670,98 lx

95,7

81,975,588,4

R10R11

R5-9,8

-14,3

37,5%

R4R3

R8R9

R6R7

Δ

Ee 50,15 W/m²

0,0057 0,0049

34,3%

555 nm477 nm

reference10.027,19 lx

Dominant wavelengthPeak wavelength

Illuminance

correlated color temperature (CCT)Duv 0,0008

-1.636 K5.445 K

22 nm66 nm

9,40 W/m² -40,7 W/m²LER 200,0 lm/W

0

20

40

60

80

100

120

140

160

180

380 430 480 530 580 630 680 730 780

mW/m²/nm

[nm]

referencemeasurement

BASE

First, last name of inspector Phone number

Time of measurement:

Test object: PhilipsMaster TL-D Super 8036W/840

Measurement file:

CompanyAddressZIP City

Test location, Date

Measurement protocolTest-M.CSV

Date of measurement: 03.03.201708:17:53

0

20

40

60

80

100

120

140

160

180

380 430 480 530 580 630 680 730 780

mW/m²/nm

[nm]

0

20

40

60

80

100

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

R f b

y Hu

e

Hue bin

Fidelity-Index

-20

-15

-10

-5

0

5

10

15

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Chro

mas

hift

by H

ue [%

]

Hue bin

Chromashift

referencemeasurement

60

70

80

90

100

110

120

130

140

50 60 70 80 90 100

R g

Rf

ZIP CityAddressCompany

First, last name of inspector Phone number

Measurement protocol

780 0,00

0,86740mW/m²/nm[nm]

0,05760

Date

1,60

03.03.201708:17:53

Measurement file:

Time of measurement:Date of measurement:

Test object: Philips

0,66

49,3

= 79,8

R5R6

510 6,14515 5,62520 5,78

450 18,19455

R2R3R4

550 86,40

415

725730

0,78

R12 =

8,265,87

73555564,13435 495 23,70

420 540 139,42 660 8,90

675 5,32

665 7,57670 5,67

32,0636,80430

485 39,42490

425

0,461,45

15,34

7,10

17,94460 16,92

24,47

[nm]

11,8841,24

500 13,56505 8,23

[nm] mW/m²/nm

475 14,64

545 160,08

525 7,96530 17,52535 56,85

465 15,52470 14,14

480

[nm] mW/m²/nm440 32,88445 18,28

mW/m²/nm0,570,21

R10 = 44,5

405

380

410

= 88,4

40019,52

[nm]

385

R15

=

390395

R9

=

-4,4

mW/m²/nm

610 135,84

11,26655 10,11

630 33,60635 18,71640 11,09

47,62 645 10,47590 43,18

[nm]

565

mW/m²/nm560 16,08

13,26

650

0,06

710 13,23715 6,68

695 4,70700 6,71705 12,51

==

765 0,00770 0,00775 0,11

0,39400,3976

0,22570,5124

0,22570,3416

= 77,6= 97,5

Rf

u'v'

uv

Rg

TM30

0,07325,5 %

577 nm543 nm

[nm] mW/m²/nm680 5,87685 6,38690 5,38

720 2,54

745 0,87750 0,24755

Percent FlickerFlicker index

Flicker frequency

3809 K86,881,975,5

88,0

3356,21 lx

37,5 %

Ra9,400 W/m²357,0 lm/W

Re = 70,2GAI = 69,1

615 105,48

620 55,52625 43,19

595 36,74600 37,33605 78,08

28,37580

570 15,96575

R1

42,88585

100 Hz

R7

Test location,

R13 = 93,0R14 = 71,9

======

R11 = 72,0

R8 = 67,9

Test-M.CSV

IlluminanceEeLER

correlated color temperature (CCT)Duv

Saturation

Dominant wavelengthPeak wavelength

CIE1960

CIE1976

CIE1931xy

Master TL-D Super 8036W/840

91,788,857,5

=

==

=

0,0057

0

20

40

60

80

100

120

140

160

180

380 430 480 530 580 630 680 730 780

mW/m²/nm

[nm]

CompanyAddressZIP City

Test location, Date

Measurement file: Test-M.CSVDate of measurement: 03.03.2017Time of measurement:

Test object: PhilipsMaster TL-D Super 8036W/840

First, last name of inspector Phone number

Measurement protocol

615 105,48

0,78740

43,18595 36,74600 37,33605 78,08610 135,84

465470475480

36,8023,7013,56

420425430435440445450455460

485490495500

8,236,145,625,787,96

17,52

560 16,08565 13,26570 15,96

15,5214,1414,6424,4739,42

7,57

620 55,52625 43,19630 33,60

380[nm]

385390395400405410415

505510515520525530

mW/m²/nm0,570,210,461,45

15,3419,527,105,878,26

11,8841,2464,1332,8818,2818,1917,9416,92

5,87685 6,38

[nm] mW/m²/nm535 56,85540 139,42545 160,08550 86,40555 32,06

635 18,71

575 28,37580 42,88585 47,62590

735

760

645 10,47650 11,26655 10,11660 8,90665

770

640 11,09

670 5,67675 5,32680

mW/m²/nm690 5,38695 4,70700 6,71705 12,51

[nm]

13,23715 6,68720 2,54725 1,60730 0,66

710

0,86745 0,87750 0,24755 0,06

0,05765 0,00

0,00775 0,11780 0,00

[nm] mW/m²/nm [nm] mW/m²/nm [nm] mW/m²/nm [nm] mW/m²/nm

08:17:53

0

20

40

60

80

100

120

140

160

180

380 430 480 530 580 630 680 730 780

mW/m²/nm

[nm]

First, last name of inspector

Test-M.CSVDate of measurement: 03.03.2017

08:17:53

Phone number

Time of measurement:

Measurement file:

AddressZIP City

Test location, Date

Measurement protocolTest object: Philips

Master TL-D Super 8036W/840

Company

0

20

40

60

80

100

120

140

160

180

380 430 480 530 580 630 680 730 780

mW/m²/nm

[nm]

0

0,2

0,4

0,6

0,8

0 0,2 0,4 0,6 0,8

y

x

CIE1931

0

0,2

0,4

0,6

0 0,2 0,4 0,6

v

u

CIE1960

0

0,2

0,4

0,6

0 0,2 0,4 0,6

v'

u'

CIE1976

0 20 40 60 80 100

R15R14R13R12R11R10

R9R8R7R6R5R4R3R2R1Ra

CRI Ra

R1

R2

R3

R4

R5

R6

R7R8

R9

R10

R11

R12

R13

R14

R15

CRI

Precision Measurement and Intelligible Qualification Mavospec Base – the Innovative SpectrometerWe developed the Mavospec Base in order to make precise and easy photometry possible for everyone – whenever and wherever you need it. All measured quanti-ties which are relevant for light such as illuminance, correlated color temperature, color rendering index according CIE 13.3 and IES TM-30-15, color coordinates in accordance with various CIE standards, flicker, spectral power distribution, peak wavelength and dominant wavelength are determined for the measured spectrum and displayed such that they can be understood by experts as well as laypersons.

Mavospec Base – Developed to Optimize Your Light

INTUITIVE ONE-HAND OPERATION – With the help of the ring controller and just a few keys.

BRILLIANT COLOR DISPLAY – for perfect read-outs under all lighting conditions and lucid eval-

uations directly at the display.

OUTSTANDING MEASURED VALUE STABILITY – by means of a large temperature range resulting

from an integrated temperature sensor and automatic temperature compensation of the dark

current.

PHOTOMETRIC AND RADIOMETRIC CALIBRATION – with calibration report for verifiably perfect

results.

INVESTMENT SECURITY – thanks to top quality made in Germany and a 3-year guarantee, as well

as the ability to install updates via the USB port for new features and changes to the standards.

Documented Light Quality – for Reliable Production and Verifiable ResultsThe Mavospec Base stores measured values to the integrated SD card. These measured values

are conveniently transmitted to the PC via the USB port. Evaluations can be conducted in a sim-

ple and adaptable fashion with the help of the included Excel sample reports including graphic

visualization. Trouble-free incorporation into customer systems and applications is also made

possible by the open interface protocol.

WHAT’S THE COLOR OF JOY?

Simple Report Generation – The included Excel evaluation includes 5 standard reports which users can adapt to their own individual needs.

98

BASE

Many factors determine how your light is perceived.Spectral power distribution, color temperature, illuminance and other factors make light unique in each given situation. The Mavospec Base ascertains all relevant values, so that you can optimize your light for any specified requirements.

WHAT’S THE COLOR OF DESIRE?

SPECTRAL POWER DISTRIBUTION – represents the radiant power of a light source for a wavelength

or a waveband in the visible range. It provides us with information about color characteristics

and can be used to compare the color temperature of different light sources. Information can be

inferred from this regarding color rendering properties, because missing or attenuated portions of

the spectrum result in color rendering errors. Abbreviation: SPD, unit of measure: mW/m2/nm)

COLOR COORDINATES – are a means of precisely defining a color, i.e. a color’s chromaticity as

specified by the coordinates of the CIE diagram. The human eye is equipped with sensory cells for

the perception of the three primary colors, namely red, green and blue. Photopic curves for the

standard observer were ascertained in 1931 by the CIE and indicate sensitivity for the individual

wavelength ranges. Abbreviations: x, y [CIE 1931] / u, v [CIE 1960] / u', v' [CIE 1976]

ILLUMINANCE – indicates with how much intensity a surface is illuminated. It amounts to one

lux when a luminous flux of one lumen illuminates a surface of one square meter. Luxmeters are

used to measure illuminance at horizontal and vertical surfaces. However, illuminance does not

indicate the brightness impression of a room, because this depends to a great extent on the room’s

reflective characteristics. As a rule, uniform light distribution is not achieved with normal lighting,

for which reason specifications in the standards usually make reference to mean illuminance This

value is calculated as the weighted arithmetic mean of all illuminance values in the room.Abbreviation: E, unit of measure: lux

COLOR TEMPERATURE – is a function which is used to quantitatively specify the respective color

impression of a light source. The unit of measure for color temperature is degrees Kelvin (K). In

concrete terms, it’s the temperature whose light effect is most similar to the color to be described

at uniform brightness under specified observation conditions. Abbreviation: CCT, unit of measure: Kelvin [K]

FLICKER – is the designation for fluctuation in the brightness of the light due to voltage fluctuation.

The perception threshold for changes in luminance is a frequency-dependent quantity which

indicates as of which relative change in luminance at a specified frequency perception takes

place. These fluctuations have an impact on human health. A good LED driver smooths out voltage

fluctuation and prevents flicker. The flicker value is a measure for the quality of the lamp or light

fixture, and should be as low as possible. Abbreviation: F%

THE COLOR RENDERING INDEX – Ra is a measure of the

color rendering properties of lamps and has a theoretical

maximum value of 100. The higher the color rendering in-

dex, the better the color rendering properties of the lamp.

Color rendering which is as natural as possible is achie-

ved through the use of lamps with an Ra value of greater

than 90. Ra is the arithmetic mean of the color deviation

of the first 8 of 14 test colors according to DIN 6169. An

extension to this is the color rendering index Re, which is

calculated over all 14 test colors and the additional test

color 15 (Asia Skin Color), which also takes into account

saturated colors, leaf green and skin tones. DIN EN 12464

specifies the color rendering properties of lamps used to

illuminate various types of rooms and activities.

Abbreviation: Ra

GAMUT AREA INDEX – is a measure of the

vividness of the color representation and is

used primarily in the evaluation of exhibiti-

on and museum lighting. It is an indicator

of how well the octahedral surface defined

by the eight test colors of the Ra in the

color space is covered by the light source.

COLOR RENDERING IES TM-30-15 –

is a new standard that makes use of

99 reference colors which are distri-

buted over the entire color space. As

a result, it makes use of significantly

more colors and hues for the calcu-

lation of fidelity index Rf, which de-

scribes the same relationship as color

rendering index Ra. Gamut index Rg

provides information concerning color

saturation and color shift, and is si-

milar to gamut area index GAI used

previously for the examination of color

rendering.

low Ra high Ra

low GAI false and pale colors

correct but pale colors

high GAIfalse and intense colors

natural colors

GAI Rf,Rg

1110

BASE

Precision comes from experience, know-how and perfect calibration at regular intervals.We are the experts for the measurement of light with decades of experience in our chosen field of endeavor. It’s not without reason that the name GOSSEN stands for continuous innovation – in response to rapidly changing technologies, regulations and markets. And thus the Mavospec Base with intuitive user interface is one of the most accurate and reliable spectrometers in its class, and reflects the most up-to-date technology available on the market.

However, like all other precision light meters, this product also requires regular maintenance,

recalibration and software updates in order to continuously fulfil performance capabilities within

the stipulated tolerances and specifications.

Calibrated for the Most Exacting Demands We recommend a calibration interval of 12 to 24 months for the Mavospec. Recalibration is

conducted at the GOSSEN Light Lab with a tested and monitored optical table, whose trace-

ability to the national standard maintained by the PTB (German Federal Institute of Physics and

Metrology) is assured by means of a Wi41G standard lamp. The lab is subject to test equipment

monitoring in accordance with DIN EN ISO 9001-9004, and is additionally accredited by DAkkS

for illuminance. This assures top quality calibration with international recognition.

PHOTOMETRY

Applications Daylight, LEDs, halogen and more

Illuminance Evis 10 lx … 100,000 lx

Irradiance Ee •

Luminous Efficacy Ratio LER •

Color temperature CCT 1,600 K … 50,000 K (Duv ≥ – 0.1)

Color temperature difference relative to the Planckian locus Duv

(1,600 K ≤ CCT ≤ 50,000 K)

Color Rendering IES TM-30-15 Rf, Rg

Color rendering index CRI per CIE 13.3 Ra, Re, R1 … R15

Gamut Area Index GAI •

Peak wavelength •

Dominant wavelength per CIE 15 •

Color purity per CIE 15 •

Chromaticity coordinates [x‘,y‘] per CIE 1931

•

Chromaticity coordinates [u‘,v‘] per CIE 1976

•

Chromaticity coordinates [u,v] per CIE 1960

•

Flicker – Index0.00 … 1.00 (f ≤ 400 Hz and Flicker % ≥ 2.5 %)

Flicker – % 2.5 % … 100 % (f ≤ 400 Hz)

Flicker – frequenzy2 Hz … 6,000 Hz (Flicker % ≥ 2.5 %)

Configurable measured value display •

Selectable Units Of Measure lx / °C – fc / °F

OPERATION, INTERFACES, MEMORY

Display 2.1" color TFT 320 x 240

Controls 3 keys, ring controller

Interface USB 2.0

Interface protocol open

Data storage4 GB micro SD / 500,000 measurements

Memory mode Manual, auto

Data format CSV

OPTIONAL ACCESSORIES

Replacement batteryLi-Ion 3.7 V - 890 mAh Article number V070A

SENSOR TECHNOLOGY / MEASUREMENT TOLERANCES

Sensor CMOS image sensor, 256 pixels

Diffusor light-entry surface Φ 7 mm

Distance diffuser to surface to be measured 25 mm

Error limit - cos ike rating (f2') ≤ 3.00 %

Spectral range 380 - 780 nm (VIS)

Full width at half maximum (FWHM) ≤ 15 nm (typically 12 nm)

Physical resolution ~ 1.72 nm

A/D converter 16 bit

Wavelength reproducibility ± 0.5 nm

Integration timeautomatic, manually 10 ms – 3,000 ms

Signal-to-noise ratio 1,000:1

Spurious light -25 dB

Dark current compensation automatic via temperature sensor

Measurement uncertainty illuminance* ± 3 %

Reproducibility chromaticity* ± 0.0005

Measurement uncertainty CCT* ± 2 %

Measurement uncertainty TM30* ± 1.5 %

Measurement uncertainty CRI* ± 1.5 %

Measurement uncertainty Flicker* ± 1.5 %

MISCELLANEOUS

Mains power pack100 - 240 V (50/60 Hz) 0.15 A 5 V, 1 A (DC) USB port

Power supply via USB port •

Rechargeable battery Li-Ion 3.7 V - 890 mAh

Automatic shutdown Programmable for display + device

Rechargeable battery life ≥ 8 hours continuous operation

Charging time with power pack 1.5 h

Operating temperature 5 - 40 °C

Dimensions [H x W x D] 139 mm x 60 mm x 30 mm

Weight 150 g

Scope of deliveryMeter, sensor cover cap, V070A rechargeable battery, power pack, USB interface cable, aluminum case, neoprene sheath, carrying strap, calibration protocol, operating instructions in German and English, 4 GB micro SDHC memory card including EXCEL file with several protocol templates and operating instructions in German, English, French, Italian, Spanish as PDF, SD adapter

Subject to change without notice • included function

*Standard light type A, 2,856 K @ 1,000 lx

IDENTICAL LIGHT COLOR DAY AFTER DAY

Model: MAVOSPEC BASE

Article number: M521G

BASEFoto- und Lichtmesstechnik GmbH

Lina-Ammon-Str. 22

D-90471 Nuremberg

Germany

Tel: +49 (0) 911 8602 - 181

Fax: +49 (0) 911 8602 - 142

www.gossen-photo.de