发明名称 Projection screen and method for producing the same.
摘要 <p>A projection screen is comprised of a sheet formed by a multiplicity of light-transmitting plastic strands which strands are arranged and welded in parallel with one another. The width W (mm) of the screen and the pitch p (mm) of the strands meet the following condition (1): &lt;MATH&gt; The radius of curvature R1 (mm) of the strand at a first side of the screen is determined by the following condition (2) &lt;MATH&gt; The radius of curvature R2 (mm) of the strand at a second side of the screen meets the following condition (3): &lt;MATH&gt; </p>
申请公布号 EP0456518(A2) 申请公布日期 1991.11.13
申请号 EP19910304253 申请日期 1991.05.10
申请人 MITSUBISHI RAYON CO., LTD. 发明人 OKADA, MIZUO;SAKUNAGA, KENICHI;NAKAGAWA, SHIGETADA;SAITO, SHOZO
分类号 G03B21/62;G03B21/56 主分类号 G03B21/62
代理机构 代理人
主权项
地址