发明名称 SCREEN FOR REAR PROJECTION
摘要 PROBLEM TO BE SOLVED: To provide a screen for rear projection which surely eliminates the warpage of the screen by means of a simple improvement, is capable of allowing the stress generated by a change in temperature and humidity to escape, is good in workability, permits always good appreciation of videos, and is excellent in practicability. SOLUTION: The screen for rear projection is laminated with a front plate 1 for lens protection, a directional light scattering lens 2, and a Fresnel lens 3 in this order from an appreciator side. The Fresnel lens 3 is supported by a support 4 installed additionally and fixed in a contactless state to the Fresnel lens 3. COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2005242235(A) 申请公布日期 2005.09.08
申请号 JP20040055160 申请日期 2004.02.27
申请人 ARISAWA MFG CO LTD 发明人 OSHIMA KOJI;SOYAMA MAKOTO;UCHIDA SHUJI
分类号 G03B21/62;G02B7/00;(IPC1-7):G03B21/62 主分类号 G03B21/62
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