发明名称 |
Multiple range passive infrared detection system |
摘要 |
A passive infrared detection system which exhibits a consistent optical aperture and sensitivity over different operating ranges. The system includes a mirror assembly having a plurality of spherical segments arranged in two or more ranks, each corresponding to a different operating range. Each mirror segment is disposed at its respective focal length from a detector, and is of a size and configuration to provide an intended optical aperture to achieve uniform detection sensitivity irrespective of the range of the target.
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申请公布号 |
US4339748(A) |
申请公布日期 |
1982.07.13 |
申请号 |
US19800138311 |
申请日期 |
1980.04.08 |
申请人 |
AMERICAN DISTRICT TELEGRAPH COMPANY |
发明人 |
GUSCOTT, JOHN K.;POWERS, ROBERT |
分类号 |
G08B13/18;G01J1/04;G01J5/48;G01V8/14;G08B13/19;G08B13/193;(IPC1-7):G02B5/10 |
主分类号 |
G08B13/18 |
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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