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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Main Authors | , |
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Format | Patent |
Language | English |
Published |
22.09.2014
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Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | Application Number: JP20130045081 |