| 发明名称 |
High aspect ratio light fixture and film for use therein |
| 摘要 |
A high aspect ratio light fixture has an optical window with a light extraction film therein. The light extraction film has a plurality of linear prisms facing the interior of the light fixture. In one embodiment of the invention the prisms are triangular in shape while in another they are four sided.
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| 申请公布号 |
US4984144(A) |
申请公布日期 |
1991.01.08 |
| 申请号 |
US19880181652 |
申请日期 |
1988.04.14 |
| 申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
COBB, JR., SANFORD;DREYER, JR., JOHN F. |
| 分类号 |
F21V7/00;F21V13/04;G02B5/122 |
主分类号 |
F21V7/00 |
| 代理机构 |
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