| 发明名称 |
OBJECT LENS FOR REPRODUCTION OF VIDEO DISK |
| 摘要 |
An objective lens for reading videodiscs comprising five single lenses arranged so that the working distance is large and the flatness of field and resolving power are high. |
| 申请公布号 |
JPS55100518(A) |
申请公布日期 |
1980.07.31 |
| 申请号 |
JP19800006387 |
申请日期 |
1980.01.24 |
| 申请人 |
MCA DISCO VISION |
发明人 |
RII MITSUKURUSON |
| 分类号 |
G02B13/00;G02B13/24;G02B21/02;G11B7/135 |
主分类号 |
G02B13/00 |
| 代理机构 |
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代理人 |
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