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19.3: Multispectral Optimization for Cluster LEDs with Wide Operable Range
Author(s) -
Chien MingChin,
Tien ChungHao
Publication year - 2012
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1002/j.2168-0159.2012.tb05762.x
Subject(s) - multispectral image , cluster (spacecraft) , light emitting diode , color temperature , range (aeronautics) , computer science , solid state lighting , constraint (computer aided design) , luminous efficacy , spectral power distribution , environmental science , materials science , optoelectronics , optics , computer vision , physics , mathematics , nanotechnology , computer network , geometry , layer (electronics) , composite material
LED cluster is probably the most relevant among the emerging solid‐state lighting techniques. Impressive scenarios of a wide range of color quality and luminous efficiency have been obtained, mostly at the condition of constant ambient temperature. In this paper, we unleash the above constraint; all main factors influencing the spectral power distribution (SPD) are discussed, alongside the implementation of a pentachromatic R/G/B/A/CW platform suitable for clinic use. The proposed algorithm enables the multispectral cluster to modulate the color temperature from 2800K to 8000K in the full range ambient temperature (10°C ∼ 100°C) with high color quality scale (CQS > 85 points) and the possibly highest luminous efficiency.