Multispectral optimization for cluster leds with wide operable range

Ming Chin Chien, Chung-Hao Tien

Research output: Contribution to journalConference articlepeer-review

Abstract

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 (10oC ~ 100oC) with high color quality scale (CQS > 85 points) and the possibly highest luminous efficiency.

Original languageEnglish
Pages (from-to)256-259
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Volume43
Issue number1
DOIs
StatePublished - 1 Jan 2012
Event49th SID International Symposium, Seminar and Exhibition, dubbed Display Week, 2012 - Boston, United States
Duration: 3 Jun 20128 Jun 2012

Keywords

  • Color quality scale
  • Luminous efficacy
  • Multispectral cluster
  • Solid-state lighting

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