| 发明名称 |
OPTICAL INFORMATION READER |
| 摘要 |
PURPOSE:To read information at high accruacy by generating at least five light beams from a light source, and using one of them for information reading and each two of the others for position detection of track and focus. |
| 申请公布号 |
JPS5320904(A) |
申请公布日期 |
1978.02.25 |
| 申请号 |
JP19760094968 |
申请日期 |
1976.08.11 |
| 申请人 |
TOKYO SHIBAURA ELECTRIC CO |
发明人 |
TSUJI SHIGEO |
| 分类号 |
G03B13/36;G02B7/28;G02B27/00;G02B27/40;G06K7/10;G11B7/08;G11B7/09 |
主分类号 |
G03B13/36 |
| 代理机构 |
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代理人 |
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