TRANSMISSION TYPE SCREEN APPARATUS

PROBLEM TO BE SOLVED: To provide a transmission type screen apparatus with less deterioration of performance due to a change in humidity, capable of securing the flatness of a fresnel lens sheet required to project a high-definition image on a screen, and also, capable of facilitating the control an...

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Bibliographische Detailangaben
1. Verfasser:	YASUMURA HIROTO
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 OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHOTOGRAPHY PHYSICS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a transmission type screen apparatus with less deterioration of performance due to a change in humidity, capable of securing the flatness of a fresnel lens sheet required to project a high-definition image on a screen, and also, capable of facilitating the control and handling of the lens sheet. SOLUTION: The transmission type screen apparatus includes the fresnel lens sheet 1 and a lenticular lens sheet 3, and the apparatus is constituted of at least two sheet members. The fresnel lens sheet 1 as a glass plate 4 obtained by optically sticking a fresnel lens film 5 on an incident surface is used as the incident side sheet of the screen apparatus, and a light-transmissive synthetic rein plate 7 obtained by optically sticking a moisture-proof film 6 constituted of light-transmissive material having low moisture transmittance on an exit surface is used as the exit side sheet of the screen apparatus. COPYRIGHT: (C)2006,JPO&NCIPI