TRANSMISSION TYPE PROJECTION SCREEN

PROBLEM TO BE SOLVED: To provide an assembly structure effective to maintain a suitable initial state when attaching a transmission type screen constituted by combining a flexible lens sheet (having no freestanding property) with a rigid lens sheet (having freestanding property) to a TV main body. S...

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Bibliographische Detailangaben
Hauptverfasser:	SASE MASAO, OZAWA TOMOYUKI, YASUMATSU AKIRA, MIYAJIMA YASUTAKA
Format:	Patent
Sprache:	eng
Schlagworte:	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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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an assembly structure effective to maintain a suitable initial state when attaching a transmission type screen constituted by combining a flexible lens sheet (having no freestanding property) with a rigid lens sheet (having freestanding property) to a TV main body. SOLUTION: In such a state that the surfaces on the lens part sides of a lenticular sheet and a Fresnel lens sheet having nearly equal size are opposed, and the peripheries of these sheets are sealed with an adhesive tape so that the resultant cross section is U-shaped; the void between both sheets is sucked by a vacuum pump so as to be set in a decompressed state, and both the sheets are brought into tight-contact with each other. Thereafter, they are supported and fixed in a frame. COPYRIGHT: (C)2007,JPO&INPIT