发明名称 |
Photoelectric direction finder |
摘要 |
A direction finder including downstream the reticle an intermediate objective and a four quadrant detector, the reticle providing a modulation at a given frequency and in which the intermediate objective comprises preferably a half-ball lens whose center of curvature coincides substantially with the detector center to allow a relative movement of the reticle with respect to the detector, such as a rotation round this center controlled by a driving device.
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申请公布号 |
US4286760(A) |
申请公布日期 |
1981.09.01 |
申请号 |
US19790019697 |
申请日期 |
1979.03.12 |
申请人 |
THOMSON-CSF |
发明人 |
COUDERC, GEORGES;COJAN, YVES;BECK, JEAN-LOUIS |
分类号 |
F41G7/22;G01S3/786;(IPC1-7):F41G7/00 |
主分类号 |
F41G7/22 |
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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