TRANSMISSION TYPE SCREEN

PROBLEM TO BE SOLVED: To obtain a transmission type screen having good optical characteristics. SOLUTION: The transmission type screen has a structure obtained by laminating a Fresnel lens screen 1, a lenticular lens screen 2 and a front plate 3. A filmlike Fresnel lens screen 1 having 0.1-0.5 mm th...

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Bibliographic Details
Main Authors NIWA MASATOSHI, YOSHIHARA YOSHIHIRO
Format Patent
LanguageEnglish
Published 11.08.2000
Edition7
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 obtain a transmission type screen having good optical characteristics. SOLUTION: The transmission type screen has a structure obtained by laminating a Fresnel lens screen 1, a lenticular lens screen 2 and a front plate 3. A filmlike Fresnel lens screen 1 having 0.1-0.5 mm thickness is used as the Fresnel lens screen 1. The Fresnel lens screen 1 is stuck to the front plate 3 at the outside of the effective picture plane of the screen. Members having a prescribed coefficient of thermal expansion are used as the front plate 3 and the Fresnel lens screen 1 so that the Fresnel lens screen 1 is stretched under a prescribed tension without waving due to the difference between the coefficients of thermal expansion of both the members in the stuck state to the front plate 3.
Bibliography:Application Number: JP19980342742