4 LED Applications
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Transcript of 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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Why LEDs for Lighting?
Seminar on LED Technology and Applications
2012 Regional Center for Lighting. All Rights Reserved.
Incandescent and HalogenEfficacy NOW 12 to 26 lm/W
Efficacy Limit 53 lm/W
Fluorescent and CFLEfficacy NOW 60 to 115 lm/W
Efficacy Limit 120 lm/W
HIDEfficacy NOW 100 to 115 lm/W
Efficacy Limit 280 lm/W
Solid State
Efficacy NOW 140 lm/W
Efficacy Limit 340 lm/W
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Why LEDs for Lighting?
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20,000
40,000
60,000
80,000
100,000
Incandescent Fluorescent HID Solid State
Life (Hrs)
Life (Hrs)
Seminar on LED Technology and Applications 2012 Regional Center for Lighting. All Rights Reserved.
LEDs lower the operational cost
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Early LED applications
80% less energy than filtered incandescent lamps
Reduce maintenance cost
Seminar on LED Technology and Applications 2012 Regional Center for Lighting. All Rights Reserved.
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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)
Seminar on LED Technology and Applications
2012 Regional Center for Lighting. All Rights Reserved.
Source: Dr. Robert Steel, Strategies Unlimited, CA
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Mobile phones, note books, TVs, signs
and displays
Seminar on LED Technology and Applications 2012 Regional Center for Lighting. All Rights Reserved.
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
Seminar on LED Technology and Applications 2012 Regional Center for Lighting. All Rights Reserved.
Fast response time
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Places difficult to access and maintain
Seminar on LED Technology and Applications 2012 Regional Center for Lighting. All Rights Reserved.
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Off grid products
Seminar on LED Technology and Applications 2012 Regional Center for Lighting. All Rights Reserved.
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
Seminar on LED Technology and Applications 2012 Regional Center for Lighting. All Rights Reserved.
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
Seminar on LED Technology and Applications 2012 Regional Center for Lighting. All Rights Reserved.
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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
Seminar on LED Technology and Applications 2012 Regional Center for Lighting. All Rights Reserved.
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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.
Seminar on LED Technology and Applications 2012Regional Center for Lighting. All Rights Reserved.
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Thanks
Questions?
Seminar on LED Technology and Applications 2012Regional Center for Lighting. All Rights Reserved.