PRODUCTION OF TRANSMISSIVE TYPE SCREEN

PURPOSE:To make the titled screen light in weight and thin and to mass-produce said screen by using a resin cured by ultraviolet rays as a main material for forming the Fresnel lens surface and the lenticular lens surface of the screen. CONSTITUTION:The ultraviolet-cured resin 12 is applied on one s...

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Bibliographische Detailangaben
Hauptverfasser:	INOUE TAKUJI, OGINO TOYOHIRO, OGOSHI AKIO, YOKOTA TOSHIKAZU
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES THEREFOR AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 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 INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE:To make the titled screen light in weight and thin and to mass-produce said screen by using a resin cured by ultraviolet rays as a main material for forming the Fresnel lens surface and the lenticular lens surface of the screen. CONSTITUTION:The ultraviolet-cured resin 12 is applied on one surface of a back film 13 or a mold 10 where the lens surface 15 which is the opposite model of a lens 11 on one side is formed. Then the ultraviolet-cured resin 12 is held between the back film 13 and the mold 20 and ultraviolet rays 7 are radiated on it. Next, the lens 11 on one side is exfoliated from the mold 10 and the ultraviolet-cured resin 32 is applied on a mold 30 where the lens surface 35 which is the opposite model is formed, then the ultraviolet rays 27 are radiated on the ultraviolet-cured resin 32 in the same way. Thereafter, both-surface lenses 11 and 31 are exfoliated from the mold 30 and the mold 10. Thus, its producing time is shortened and continuous mass production can be possible.