发明名称 TRANSMISSION SCREEN, ITS MANUFACTURING METHOD, AND BACK PROJECTION TYPE PROJECTOR
摘要 PROBLEM TO BE SOLVED: To provide a transmission screen with which display can be performed sharply with high high contrast even in the case of a high definition picture, and a method of manufacturing the screen in a comparatively simple process, and a back projection type projector on which the screen is mounted. SOLUTION: The manufacturing method of the transmission screen which comprises a lens sheet 1 on whose one surface a plurality of lenses 2 are arranged and a light shielding layer 3 which is formed on another surface 1a of the lens sheet, on which lenses are not formed and in which non-light shielding areas 3a each of which is formed centering the optical axis of each lens in the light shielding layer, has at least of a process of forming the light shielding layer on the another surface of the lens sheet and a process of forming the non-light shielding areas at parts of the light shielding layer corresponding to optical axes of respective lenses by irradiating the lens sheet on which the light shielding layer is formed with pulsed laser light from the side of the lens formation surface. COPYRIGHT: (C)2004,JPO&NCIPI
申请公布号 JP2004191429(A) 申请公布日期 2004.07.08
申请号 JP20020355925 申请日期 2002.12.06
申请人 RICOH CO LTD 发明人 TEZUKA SHINJI
分类号 G03B21/62;H04N5/74;(IPC1-7):G03B21/62 主分类号 G03B21/62
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