发明名称 Front-lit projection screen
摘要 On a front-lit projection screen of the type which on the backside of a transparent substrate (1) has both reflective as well as light-absorbing areas, the reflective areas (3) of the protruding prismatic bodies (4), which in at least one perpendicular plane on the backside has a principally triangular cross-section, and the light-absorbing sections (5) cover the side faces of the said prismatic bodies (4) laying against the back side of the screen.<IMAGE>
申请公布号 DK174468(B1) 申请公布日期 2003.03.31
申请号 DK19920001287 申请日期 1992.10.22
申请人 DAI NIPPON PRINTING CO. LTD. 发明人 CLAUSEN, ERIK;CLAUSEN, JOHANNES
分类号 G03B21/62;(IPC1-7):G03B21/62 主分类号 G03B21/62
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