| 发明名称 |
PLANE LINEAR GRATING FOR OPTICALLY ENCODING INFORMATION |
| 摘要 |
An encoding disk including a multiplicity of linear gratings placed accurately on the disk to diffract a light beam to a fixed point in space accurately does so independently of the centering of the disk on its axis of rotation. |
| 申请公布号 |
EP0096476(A3) |
申请公布日期 |
1987.02.25 |
| 申请号 |
EP19830302712 |
申请日期 |
1983.05.13 |
| 申请人 |
BENSON, INC. |
发明人 |
DOGGETT, DAVID E. |
| 分类号 |
G02B26/10;G01D5/38;G02B5/32;H03M1/00;H04N1/113;H04N1/41 |
主分类号 |
G02B26/10 |
| 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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