LIGHT TUNNEL, ILLUMINATION OPTICAL SYSTEM, AND IMAGE DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide a light tunnel which is formed by putting mirror substrates together into a tube shape and which prevents light traveling through the mirror substrates from reaching a spatial optical modulator from end faces of the mirror substrates on an exit port side of the light...

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Bibliographic Details
Main Authors MIYAGAKI KAZUYA, TOKITA TOSHIAKI
Format Patent
LanguageEnglish
Published 22.09.2014
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CINEMATOGRAPHY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
ELECTROGRAPHY
HOLOGRAPHY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHOTOGRAPHY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:PROBLEM TO BE SOLVED: To provide a light tunnel which is formed by putting mirror substrates together into a tube shape and which prevents light traveling through the mirror substrates from reaching a spatial optical modulator from end faces of the mirror substrates on an exit port side of the light tunnel.SOLUTION: A light tunnel is formed by putting a plurality of mirror substrates 10 together into a tube, uses inner walls made up of mirror surfaces of the mirror substrates as reflection surfaces, and has a reflective member 4 provided on each mirror substrate 10 on an exit port side 12 of the light tunnel.
Bibliography:Application Number: JP20130045081