Multispectral mixing scheme for LED clusters with extended operational temperature window
| Autor: | Ming Chin Chien, Chung-Hao Tien |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Computer science
business.industry ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION SeaChanger Color Engine Atomic and Molecular Physics and Optics law.invention Color rendering index Photometry (optics) LED lamp Optics law High color Chromaticity business Smart lighting Luminous efficacy Light-emitting diode |
| Zdroj: | Optics Express. 20:A245 |
| ISSN: | 1094-4087 |
| Popis: | LEDs have changed the concept of illumination not only in an expectation of the highest electroluminance efficiency but also in tremendous chances for smart lighting applications. With a cluster mixing, many studies were addressed to strategically manipulate the chromaticity point, system efficiency and color rendering performance according to different operational purposes. In this paper, we add an additional thermal function to extend the operational thermal window of a pentachromatic R/G/B/A/CW light engine over a chromaticity from 2800K to 8000K. The proposed model is experimentally validated to offer a full operable range in ambient temperature (Ta = 10° to 100°C) associated with high color quality scale (above 85 points) as well as high luminous efficiency (above 100 lm/watt). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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