Paper Title:
Microlens Array Homogenizer for Laser Illuminated Projector
  Abstract

Laser light source is a potential illumination light source for non-emissive display applications, especially for liquid crystal projection displays, due to its requirement of low etendue source and highly polarized light. In order to make a conversion from a circular Gaussian beam profile to a rectangular uniform distribution, a microlens array has been proposed as a homogenizer. The analytical and experimental results show that the microlens array with a pitch of 100um under laser beam illumination works as a diffractive element, and a promising uniformity can be obtained with a stack of two microlens array.

  Info
Periodical
Key Engineering Materials (Volumes 364-366)
Edited by
Guo Fan JIN, Wing Bun LEE, Chi Fai CHEUNG and Suet TO
Pages
143-147
DOI
10.4028/www.scientific.net/KEM.364-366.143
Citation
C. H. Chen, C. C. Chen, P. H. Yao, "Microlens Array Homogenizer for Laser Illuminated Projector", Key Engineering Materials, Vols. 364-366, pp. 143-147, 2008
Online since
December 2007
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Price
$32.00
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