PROJECTION DISPLAY DEVICE

PROJECTION DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide a projection display device capable of realizing video display by back projection to a transmission type diffusion screen, and capable of realizing projection on a screen larger than the diffusion screen, for example. SOLUTION: A total reflection mirror 6 is turnably...

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1. Verfasser: HORIUCHI TATSUTO
Format: Patent
Sprache:eng
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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
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
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creator HORIUCHI TATSUTO
description PROBLEM TO BE SOLVED: To provide a projection display device capable of realizing video display by back projection to a transmission type diffusion screen, and capable of realizing projection on a screen larger than the diffusion screen, for example. SOLUTION: A total reflection mirror 6 is turnably provided by a horizontal shaft 3 provided along the upper side part of the mirror 6. The mirror surface of the mirror 6 is positioned away from the projection display device 5 and faces the back surface side of the projection display device in a condition where the mirror 6 is turned and raised. Video light projected from the device 5 is guided to a screen 4 arranged on the back surface side of the projection display device by the mirror 6. That is, the device is the front surface projection type projection display device and a video is displayed on the screen 4 larger than the screen 1.
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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
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHY
PHYSICS
title PROJECTION DISPLAY DEVICE
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