Novel holographic color filters with double transmission holograms

Weichung Chao; Sien Chi

doi:10.1117/12.274430

15 May 1997 Novel holographic color filters with double transmission holograms

Weichung Chao, Sien Chi

Proceedings Volume 3010, Diffractive and Holographic Device Technologies and Applications IV; (1997) https://doi.org/10.1117/12.274430
Event: Photonics West '97, 1997, San Jose, CA, United States

Abstract

A novel transmission structure of holographic color filters is introduced. The device is based on the natural characteristics of angular color dispersion in transmission holograms, and the optical reciprocity interacting with two same transmission structure. The type of holographic color filters, differed from before, is composed of two same structure of transmission holograms which are laminated on the both side of transparent substrate. The first transmission hologram diffract normally incident white light, generally emitted from metal halide lamp, into transparent substrate with angular color separation. The diffracted beams transmitted through substrate and are separated for different R, G, B wavelengths. At last, the different R, G, B beams normally couple out with the second hologram as same structure as first one due to optical reciprocity. A light beam matrix mask (LBM) is presented to produce R, G, B pixel, and provided an approach in LCD application.

Citation Download Citation

Weichung Chao and Sien Chi "Novel holographic color filters with double transmission holograms", Proc. SPIE 3010, Diffractive and Holographic Device Technologies and Applications IV, (15 May 1997); https://doi.org/10.1117/12.274430

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KEYWORDS

Holograms

Holography

Optical filters

Diffraction

LCDs

Volume holography

Metals

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