发明名称 |
IR radiation detector for target sighting - has cassegrain optical system which retro-reflects incoming light into hollow conical reflector with end detector |
摘要 |
<p>The infra-red beam target finder uses a CAssegrain type optical system (34). Incoming light passes through a transparent coupler (32) to a reflector mirror (38) with a central aperture containing a conical holder (46), the narrow end of which has a circular ring which supports a flat plate window (44) retained in a smaller cone (42) with a centrally situated plane mirror (40). The plane mirror retro-reflects the incoming light to a small aperture containing a field lens (63), which is opposite and coaxial with a modulator disc (64) at the end of a vacuum tube (48). The incoming light beam continues to a beam pupil lens (62) at the end of a narrowing conical tube (66) which by continuous internal reflection concentrates the beam onto a detector element (58) at the end of a vacuum tube.</p> |
申请公布号 |
DE2109561(B2) |
申请公布日期 |
1980.06.12 |
申请号 |
DE19712109561 |
申请日期 |
1971.03.01 |
申请人 |
BODENSEEWERK GERAETETECHNIK GMBH, 7770 UEBERLINGEN |
发明人 |
OPPELT, HANS, 7770 UEBERLINGEN |
分类号 |
G01J5/08;G02B23/12;(IPC1-7):01J1/42 |
主分类号 |
G01J5/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|