ELiXIR-Solid-State Luminaire With Enhanced Light Extraction by Internal Reflection
A phosphor-converted light-emitting diode (pcLED) luminaire featuring enhanced light extraction by internal reflection (ELiXIR) with efficacy of 60 lm/W producing 18 lumens of yellowish green light at 100 mA is presented. The luminaire consists of a commercial blue high power LED, a polymer hemisphe...
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| Veröffentlicht in: | Journal of display technology 2007-06, Vol.3 (2), p.155-159 |
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| container_title | Journal of display technology |
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| creator | Allen, S.C. Steckl, A.J. |
| description | A phosphor-converted light-emitting diode (pcLED) luminaire featuring enhanced light extraction by internal reflection (ELiXIR) with efficacy of 60 lm/W producing 18 lumens of yellowish green light at 100 mA is presented. The luminaire consists of a commercial blue high power LED, a polymer hemispherical shell lens with interior phosphor coating, and planar aluminized reflector. High extraction efficiency of the phosphor-converted light is achieved by separating the phosphor from the LED and using internal reflection to steer the light away from lossy reflectors and the LED package and out of the device. At 10 and 500mA, the luminaire produces 2.1 and 66 lumens with efficacies of 80 and 37 lm/W, respectively. Technological improvements over existing commercial LEDs, such as more efficient pcLED packages or, alternatively, higher efficiency green or yellow for color mixing, will be essential to achieving 150-200 lm/W solid-state lighting. Advances in both areas are demonstrated |
| doi_str_mv | 10.1109/JDT.2007.895358 |
| format | Article |
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The luminaire consists of a commercial blue high power LED, a polymer hemispherical shell lens with interior phosphor coating, and planar aluminized reflector. High extraction efficiency of the phosphor-converted light is achieved by separating the phosphor from the LED and using internal reflection to steer the light away from lossy reflectors and the LED package and out of the device. At 10 and 500mA, the luminaire produces 2.1 and 66 lumens with efficacies of 80 and 37 lm/W, respectively. Technological improvements over existing commercial LEDs, such as more efficient pcLED packages or, alternatively, higher efficiency green or yellow for color mixing, will be essential to achieving 150-200 lm/W solid-state lighting. 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The luminaire consists of a commercial blue high power LED, a polymer hemispherical shell lens with interior phosphor coating, and planar aluminized reflector. High extraction efficiency of the phosphor-converted light is achieved by separating the phosphor from the LED and using internal reflection to steer the light away from lossy reflectors and the LED package and out of the device. At 10 and 500mA, the luminaire produces 2.1 and 66 lumens with efficacies of 80 and 37 lm/W, respectively. Technological improvements over existing commercial LEDs, such as more efficient pcLED packages or, alternatively, higher efficiency green or yellow for color mixing, will be essential to achieving 150-200 lm/W solid-state lighting. Advances in both areas are demonstrated</description><subject>Effectiveness</subject><subject>Efficiency</subject><subject>Extraction</subject><subject>green light-emitting diode (LED)</subject><subject>Light emitting diodes</subject><subject>Lumens</subject><subject>Luminaires</subject><subject>Optical reflection</subject><subject>Optical wavelength conversion</subject><subject>Organic light emitting diodes</subject><subject>package efficiency</subject><subject>Packaging</subject><subject>phosphor-converted LED ( pc LED)</subject><subject>Phosphors</subject><subject>Polymer films</subject><subject>Reflection</subject><subject>Reflectors</subject><subject>Solid state lighting</subject><subject>solid-state lighting (SSL)</subject><subject>US Department of Energy</subject><subject>Wavelength conversion</subject><issn>1551-319X</issn><issn>1558-9323</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNqF0UFPwjAUB_DFaCKiZw9eFg_qZdDXbqU9GpyKWWICGLktpXuTkrHhVhL59nZgPHjAU1-a33t5eX_PuwTSAyCy__Iw7VFCBj0hIxaJI68DUSQCySg73tUQMJCzU--saZaEMMEF73jjODGz0TiYVIXJgolVFv1kszKlMjX678Yu_LhcqFJj5ifmY2H9-MvWSltTlf58649Ki3WpCn-MeYG773PvJFdFgxc_b9d7e4ynw-cgeX0aDe-TQIfAbSCyHASFHIVWRBOazQmnyDKuATMAynOulYBMowzDMMu5UNg6LTEX87lmXe92P3ddV58bbGy6Mo3GolAlVpsmlYRxGkop_5VCckrFQAycvDkoWRiSKGLMwbuDEIibKEXEwNHrP3RZbdqbuRWBUiYj3q7Y3yNdV01TY56ua7NS9dZNStt8U5dv2uab7vN1HVf7DoOIvzqkAO6s7Btq4p_f</recordid><startdate>20070601</startdate><enddate>20070601</enddate><creator>Allen, S.C.</creator><creator>Steckl, A.J.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| identifier | ISSN: 1551-319X |
| ispartof | Journal of display technology, 2007-06, Vol.3 (2), p.155-159 |
| issn | 1551-319X 1558-9323 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Effectiveness Efficiency Extraction green light-emitting diode (LED) Light emitting diodes Lumens Luminaires Optical reflection Optical wavelength conversion Organic light emitting diodes package efficiency Packaging phosphor-converted LED ( pc LED) Phosphors Polymer films Reflection Reflectors Solid state lighting solid-state lighting (SSL) US Department of Energy Wavelength conversion |
| title | ELiXIR-Solid-State Luminaire With Enhanced Light Extraction by Internal Reflection |
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