| 发明名称 |
Lens film and planar light source apparatus |
| 摘要 |
The cross section of the vertex parts 12B of unit lenses 12 of a lens film 10 suitable for use in a planar light source apparatus for a liquid-crystal panel are the shape of an arc, this arc having a radius in of at least 10 mu m, but not greater than 25 mu m.
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| 申请公布号 |
US6075649(A) |
申请公布日期 |
2000.06.13 |
| 申请号 |
US19990294402 |
申请日期 |
1999.04.20 |
| 申请人 |
DAI NIPPON PRINTING CO., LTD. |
发明人 |
NAITO, NOBUO |
| 分类号 |
G02B5/02;F21V8/00;G02B5/04;G02F1/1335;G02F1/13357;(IPC1-7):G02B27/10;F21N7/04 |
主分类号 |
G02B5/02 |
| 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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