发明名称 |
Front projection screen with reflected light concentrating lens array. |
摘要 |
<p>An LCD color television front projection screen is described that has a rear vertically oriented lenticular lens array, the sidewalls (31) of the lenticules steeply inclined to achieve total internal reflection of rays from a projected image into tip (33) regions of the lenticules, an external reflective surface (35) behind the array for reflecting the projected rays back into an audience field in front of the screen, and black masking (39) between the lenticules for absorbing ambient rays.</p> |
申请公布号 |
EP0511721(A2) |
申请公布日期 |
1992.11.04 |
申请号 |
EP19920202084 |
申请日期 |
1988.09.29 |
申请人 |
N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
BRADLEY, RALPH HAMPTON;GUERINOT, WILLIAM FRANCIS;VAN DE VEN, JOHANNES CORNELIS |
分类号 |
G03B21/60;H04N9/31;H04N17/00 |
主分类号 |
G03B21/60 |
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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