Illumination light pipe using micro-optics as diffuser

Juan Manuel Teijido; Hans Peter Herzig; Rene Daendliker; Joachim Grupp

doi:10.1117/12.262413

20 December 1996 Illumination light pipe using micro-optics as diffuser

Juan Manuel Teijido, Hans Peter Herzig, Rene Daendliker, Joachim Grupp

Proceedings Volume 2951, Holographic and Diffractive Techniques; (1996) https://doi.org/10.1117/12.262413
Event: Advanced Imaging and Network Technologies, 1996, Berlin, Germany

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.

Citation Download Citation

Juan Manuel Teijido, Hans Peter Herzig, Rene Daendliker, and Joachim Grupp "Illumination light pipe using micro-optics as diffuser", Proc. SPIE 2951, Holographic and Diffractive Techniques, (20 December 1996); https://doi.org/10.1117/12.262413

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