发明名称 |
Rear projection screen with means for diverging light asymmetrically |
摘要 |
Rear projection screens include a film layer having a plurality of lenses for diverging light horizontally and vertically. The horizontal viewing angle created by the lenses may be different from the vertical viewing angle. The light may be directed by the lenses in a particular direction, so that the direction of the maximum intensity light does not lie parallel to an axis normal to the screen surface. The lens film may be combined with an isotropic light disperser, such as a bulk diffuser. |
申请公布号 |
AU1224800(A) |
申请公布日期 |
2001.01.09 |
申请号 |
AU20000012248 |
申请日期 |
1999.10.25 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
ROBERT S MOSHREFZADEH;JOHN C. NELSON;PATRICK R. FLEMING;THEODORE W. HODAPP;PATRICK A. THOMAS;HSIN-HSIN CHOU |
分类号 |
G02B3/00;G02B3/06;G03B21/62 |
主分类号 |
G02B3/00 |
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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