| 发明名称 |
Lenticular lens sheet |
| 摘要 |
This invention is a lenticular lens sheet including an incidence plane that has a plurality of lens surfaces and an outgoing plane. A focal length at a center portion of each of the plurality of lens surfaces is longer. A focal length at an edge portion of each of the plurality of lens surfaces is shorter.
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| 申请公布号 |
US6754005(B2) |
申请公布日期 |
2004.06.22 |
| 申请号 |
US20020121716 |
申请日期 |
2002.04.15 |
| 申请人 |
DAI NIPPON PRINTING CO., LTD. |
发明人 |
GOTO MASAHIRO;ODA KUMPEI |
| 分类号 |
G02B3/00;G02B3/06;G02B5/02;G03B21/62;(IPC1-7):G03B21/60;G03B27/10 |
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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