REAR PROJECTION DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide a rear projection display device constituted so that video light emitted from a video projection unit is reflected by a mirror and projected to a transmission type screen from the rear side, and achieving the reduction in cost of a component for holding a mirror and...

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Bibliographic Details
Main Authors KANEKAWA SHINYA, YAMAZAKI HIROTAKA
Format Patent
LanguageEnglish
Published 13.12.2007
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
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Summary:PROBLEM TO BE SOLVED: To provide a rear projection display device constituted so that video light emitted from a video projection unit is reflected by a mirror and projected to a transmission type screen from the rear side, and achieving the reduction in cost of a component for holding a mirror and the cost of a metallic mold, the reduction in the number of components and the man-hour of assembly work and the improvement of mirror assembling accuracy and mirror holding strength. SOLUTION: In a structure where the mirror 8 is held on four sides on the inner surface of a back cover 5 covering the back side of the transmission type screen 7, the upper side of the mirror 8 is held by a mirror holder 12 that is a different component to be fixed on the back cover 5, and also the lower side and the right and left sides of the mirror 8 are held by holding pieces 13 and 14 molded integrally with the back cover 5. COPYRIGHT: (C)2008,JPO&INPIT
Bibliography:Application Number: JP20060152426