Anti-glare LED projection lamp based on an optical design with a confocal double-reflector

Ching Cherng Sun, Yi Chien Lo, Chih Chi Tsai, Xuan Hao Lee, Wei Ting Chien

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

A new optical design of a confocal double-reflector, for white LED lighting, performing uniform illumination with a specific projection angle has been presented and demonstrated. In addition, the anti-glare design with double-reflector prevents direct view of the LED, and the measured veiling luminance is much lower than that in general LED-based projection lamps.

Original languageEnglish
Pages (from-to)4207-4210
Number of pages4
JournalOptics Communications
Volume285
Issue number21-22
DOIs
StatePublished - 1 Oct 2012

Keywords

  • Anti-glare
  • Light-emitting diodes
  • Nonimaging optics

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