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LEDs: The Move to a Digital World J. Chad Stalker III, LC March 21, 2012
Outline • LEDs… – We are beyond just source efficacy (LPW) – Quality of Light starts at the device – LEDs are evolving to the Lighting applications • Luminaires… – There are solutions for general and specialized lighting applications • Lighting Systems… – Connectivity and Control are inherent to the solutions being developed
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The Digital Continuum
• Time • Rate of Change • Impact of Change
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(fill in the blank)
: A Move to a Digital World
Vacuum Tube to Transistor
Telephone to Cell Phone
Cell Phone to Smart Phone
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(fill LEDs in the blank) : :
A Move to a Digital World
LEDs Luminaires
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Systems
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LEDs: A Move to a Digital World
Efficacy vs. Traditional Sources
LEDs Quality of Light
Optimized for Lighting Applications
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Quality vs. Quality of Light “Quality”, Per Merriam “Quality of Light” Webster… • IALD, ALA and IES have identified three elements as being integral to • peculiar and essential Quality of Light… character; an inherent feature • degree of excellence; Economic Human superiority in kind • a distinguishing attribute; an acquired skill Architecture
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Quality of Light and LEDs Performance Drivers
Color Consistency Between Sources
Color Spectrum & Rendering
Color Consistency Over Lifetime
Color Consistency in Beam
Color in Application March 21, 2012
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Color Consistency Between Sources Simplifying Binning 0.45
2009 2010 2011
Standardized to ANSI
BBL Cy
0.4
2,700K 3,000K
0.35 0.35
0.4
Cx March 21, 2012
2009
0.45
0.5
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Different Ways to Achieve Freedom From Binning Post Production Sorting
Full Production Distribution > 5-7 SDCM
Targeted Kitting
Relative Distribution < 3 SDCM
Production Targeting
Characterized Phosphor System
+ +
+
Production Sorting < 3 SDCM March 21, 2012
Characterized Blue Pump
Full Production Distribution > 3 SDCM
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JND > 3 SDCM aka “Just Noticeably Different” • CDM: (source; leading CDM supplier brochure 2010) – A color consistency of 4 SDCM – A consistency of 5 SDM over lifetime • If we stay within 3 MacAdam ellipses, the majority of the people will not see a difference
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Color vs. Angle Performance Consistency Throughout the Beam LED w/ Advanced Phosphor System Superior color vs. angle delivers consistent, pure white illumination
Standard LED Inconsistent phosphor conversion results in visual tint in the light beam
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LED Luminaires: A Move to a Digital World
Luminaires
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LED Luminaire Options • Fixed white light Produces one shade of cool, neutral, or warm white light • Tunable white light Combines cool and warm white LEDs to create a range of shades • Fixed color Produces light of a fixed hue — red, green, blue, amber . . . • Color-changing (RGB) Combines red, green, and blue LEDs to produce millions of colors and color-changing effects • Multi-spectrum Combines multiple channels of colored and white LEDs to increase the range of colors
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How LEDs Have Changed
LED Features/Performance by Application Street Light
Troffer
E29
PAR
Track Light
LED Power (Watts)
High
Med
Low-Med
High
High
LED Power Density (Watts/mm2)
Med
Low
Low
Med-High
HIGH!!
LED Source Size (mm2)
Med
Med-Large
Medium
Small
SMALL!!
Input Power (DC or AC)
DC
DC
AC
AC or DC
AC or DC
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LED Lighting Systems: A Move to a Digital World
Systems
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LED Installations: From Simple to Complex
Kitchen, Private Residence, Cambridge, Massachusetts Photography: Testa Lighting Design, Inc.
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LED Installations: From Simple to Complex
Target Interactive Breezeway at Rockefeller Center, New York, New York Photography: Courtesy of Electroland
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Power Integration Architecture Options
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LEDs: A Move to a Digital World • We are beyond just source efficacy
LEDs
• Quality of Light starts at the device • LEDs are evolving to the Lighting applications
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LED Luminaires: A Move to a Digital World
Luminaires
â&#x20AC;˘ There are solutions for general and specialized applications
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LED Lighting Systems: A Move to a Digital World
Systems
â&#x20AC;˘ Connectivity and Control are inherent to the technology
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Thank You J. Chad Stalker III, LC Regional Marketing Manager, Americas Philips Lumileds Lighting Company chad.stalker@philips.com 978-807-3434 (M)
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