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Proceedings Paper

Illumination light pipe using micro-optics as diffuser
Author(s): Juan Manuel Teijido; Hans Peter Herzig; Rene Daendliker; Joachim Grupp
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Paper Abstract

A scattering light pipe has been designed for a non- conventional illumination system. The spatial distribution of the light is controlled by diffusers which are deposited on top of the pipe faces. The first realized samples have used a scattering paint as diffuser which has good optical properties but is unsuited to fabrication. Diffusers based on micro-optics have the potential to replace favorably classical Lambertian diffusers. Micro-optical diffusers (MODs) allow the generation of perfectly defined scattering distributions which are well adapted for the design of an optimized light pipe. A further advantage of such surface relief elements is their potential for cheap mass production. The strengths and limits of micro-prisms, micro- lenses, and gratings are evaluated in view of their use as diffusers. Finally a proposition for an optimized design of the illumination light pipe is presented.

Paper Details

Date Published: 20 December 1996
PDF: 10 pages
Proc. SPIE 2951, Holographic and Diffractive Techniques, (20 December 1996); doi: 10.1117/12.262413
Show Author Affiliations
Juan Manuel Teijido, Univ. of Neuchatel (Switzerland)
Hans Peter Herzig, Univ. of Neuchatel (Switzerland)
Rene Daendliker, Univ. of Neuchatel (Switzerland)
Joachim Grupp, Asulab SA (Switzerland)

Published in SPIE Proceedings Vol. 2951:
Holographic and Diffractive Techniques
Guenther J. Dausmann, Editor(s)

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