| 发明名称 |
BAR LENS WITH SMALLER THICKNESS FOR GREATER RATE OF MAGNIFICATION |
| 摘要 |
A bar lens having a linear lens portion of a cross section in the shape of a convex lens and a leg portion for spacing the linear lens portion from a paper when it is placed on the paper for the purpose of increasing the rate of magnification.
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| 申请公布号 |
CA2025062(A1) |
申请公布日期 |
1991.03.15 |
| 申请号 |
CA19902025062 |
申请日期 |
1990.09.11 |
| 申请人 |
TERASAKI, MASAHIRO |
发明人 |
TERASAKI, MASAHIRO |
| 分类号 |
B60R9/04;G02B3/00;G02B3/06;(IPC1-7):G02B3/00 |
主分类号 |
B60R9/04 |
| 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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