发明名称 |
Device for measuring an angular deviation by heterodyne detection |
摘要 |
A device for measuring an angular deviation by a space-time modulated heterodyne detection comprising a coherent optical radiation transmitter pointed at a target, a local transmitter of a coherent optical radiation having the same wavelength as the preceding radiation, a photovoltaic detector, means for focussing at a point on said detector the radiation reflected by the target, and means for converting the radiation of the local transmitter into a parallel beam and causing said parallel beam to impinge perpendicularly on the surface of said detector, wherein the means for space-time modulating the heterodyne detection are interposed in the path of the radiation from the local transmitter.
|
申请公布号 |
US3939342(A) |
申请公布日期 |
1976.02.17 |
申请号 |
US19740455529 |
申请日期 |
1974.03.28 |
申请人 |
SOCIETE ANONYME DE TELECOMMUNICATIONS |
发明人 |
BEZERIE, JEAN PIERRE;SIRIEIX, MICHEL BENOIT |
分类号 |
G01S7/491;G01S17/06;(IPC1-7):G01J1/20 |
主分类号 |
G01S7/491 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|