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>
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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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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