Design of optical components for a light emitting diode zoom illumination system

Yen Pin Tsai, Ching-Hua Hung*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

In this article, we report an optical design for a light emitting diode that can achieve high illumination quality using two hyperbolic reflectors. The relative movements of the reflectors and the light source produce a zoom function that can change the illumination beam from convergence to divergence. This study uses optical software ZEMAX for system simulation, and optimization was performed to select reflector parameters with the objectives of both improving floodlight uniformity and spotlight efficiency. Finally, experiments were conducted to verify the validity of the design, and the results corresponded well to the zoom illumination simulations.

Original languageEnglish
Pages (from-to)224-230
Number of pages7
JournalOptical Review
Volume18
Issue number2
DOIs
StatePublished - 1 Mar 2011

Keywords

  • hyperbolic
  • illumination, optimization
  • LED
  • reflector

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