4 led applications

8/13/2019 4 LED Applications

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LED Lighting Applications

Lochana PalayangodaRegional Centre for Lighting

Colombo, Sri LankaMonday, November 05, 2012

Seminar on LED Technology and Applications

2012 Regional Center for Lighting. All Rights Reserved.


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Why LEDs for Lighting?

Lifetime 50 times longer than typical halogen lamp

Cost savings Energy

Replacement

Efficacy More than 60 lm/W

Potential to go for 340 lm/W

Instant switching

No cycling effect (like HID or fluorescent)

Dimmable

Rugged and durable (as in solid state)

Non toxic (no mercury)

Seminar on LED Technology and Applications 2012 Regional Center for Lighting. All Rights Reserved.

Source: Lighting Research Centre


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Incandescent and HalogenEfficacy NOW 12 to 26 lm/W

Efficacy Limit 53 lm/W

Fluorescent and CFLEfficacy NOW 60 to 115 lm/W


HIDEfficacy NOW 100 to 115 lm/W


Solid State

Efficacy NOW 140 lm/W



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-

20,000

40,000

60,000

80,000

100,000

Incandescent Fluorescent HID Solid State

Life (Hrs)

Life (Hrs)


LEDs lower the operational cost


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Early LED applications

80% less energy than filtered incandescent lamps

Reduce maintenance cost



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Market forecast

0%5%

10%15%20%25%30%35%40%45%50%

High brightness LED market share

2007 ($4'B)

2012 ($11.4'B)



Source: Dr. Robert Steel, Strategies Unlimited, CA


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Mobile phones, note books, TVs, signs

and displays

http://localhost/var/www/apps/conversion/tmp/scratch_2//upload.wikimedia.org/wikipedia/commons/1/19/Times_Square,_New_York_City_(HDR).jpg


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Automobile applications


Fast response time


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Places difficult to access and maintain



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Off grid products


Source: Lighting Research Centre


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Architectural applications

Seminar on LED Technology and Applications 2012Regional Center for Lighting. All Rights Reserved.

http://megaluxlightings.com

/v1/project-

gallery/architectural-

lighting/


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Outdoor Lighting


http://ledflashlights.blogs

pot.com/2012/02/germany-is-using-led-street-

lamps.html

Street lighting

Landscape lighting

Parking lot lightingPathway lighting

http://www.lightingtrends

blog.com/2008/09/led-

office-lights.html


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Domestic and commercial

replacements



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Retrofit

Seminar on LED Technology and

Applications 2012 Regional Center for

Lighting. All Rights Reserved.

Halogen

20W MR16

LED

5W MR16

Halogen

65W PAR38

LED11W PAR38

LED18W PAR38

Match lumen to lumen


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RCL Future Events

Photometry Institute

LED Lighting Institute



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References

The IESNA Lighting Handbook, 9th Edition

Special Thanks for Lighting Research Centre

for providing references

N. Narendran, Ph.D

Andy Bierman, M.S.

Jean Paul Freyssinier, M.S.

Mariana G. Figueiro, Ph.D.



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Thanks

Questions?


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