Optics: image projectors – Epidiascope
Patent
1992-08-27
1994-06-28
Cuchlinski, Jr., William A.
Optics: image projectors
Epidiascope
353 98, 353122, 353DIG3, 359 72, G03B 2128
Patent
active
053251377
ABSTRACT:
An overhead projector for irradiating a spatial light modulator with reading light to read out a subject image written in the spatial light modulator with writing light and projecting the subject image read out with the reading light, wherein the spatial light modulator consists of photoconductive layer for receiving the writing light coming from a subject to reproduce the subject image, light modulating layer formed by a liquid crystal of which molecules are arranged in a homeotropic orientation for modulating the reading light of which a waveband is limited to a prescribed range according to the subject image reproduced in the photoconductive layer, and a dielectric mirror having wavelength selectivity for reflecting the reading light with the waveband modulated by the light modulating layer.
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patent: 5054892 (1991-10-01), Takanashi et al.
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Konno Toshio
Nakagaki Shintaro
Negishi Ichiro
Suzuki Tetsuji
Takahashi Ryusaku
Cuchlinski Jr. William A.
Dowling William C.
Victor Company of Japan Ltd.
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