| 发明名称 |
APPARATUS FOR DETERMING ANGULAR DISPLACEMENTS OF AN OBJECT |
| 摘要 |
An apparatus is described for determining angular displacements of an object by means of a radial grating 2 connected to the object. Via an optical system comprising two ruled surfaces 7 and 8 said grating is imaged as a parallel grating onto a radiation-sensitive detection system 14 comprising a line array of photo-diodes 15 functioning as a grating-like element. |
| 申请公布号 |
DE3366425(D1) |
申请公布日期 |
1986.10.30 |
| 申请号 |
DE19833366425 |
申请日期 |
1983.06.06 |
| 申请人 |
N.V. PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
BREMER, JOHANNES GREGORIUS;COMPAAN, KLAAS |
| 分类号 |
G01D5/26;G01B11/26;G01D5/30;G01D5/347;H03H9/145;(IPC1-7):G01D5/30 |
主分类号 |
G01D5/26 |
| 代理机构 |
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