发明名称 |
Variable pitch grating for diffraction range finding system |
摘要 |
A means for overcoming perspective foreshortening in the receiver of a diffraction range finder by use of chirp diffraction grating 121. In a diffraction range finder, a diffraction grating with variations in pitch such that the displacement of higher-order diffraction images in a receiver are separated from their associated zero-order image by an arbitrary displacement with respect to an arbitrary target distance. A system for ranging a target comprising a variable pitch grating 122 and a receiver 200 of the diffraction images formed by said grating.
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申请公布号 |
US6490028(B1) |
申请公布日期 |
2002.12.03 |
申请号 |
US19990331348 |
申请日期 |
1999.06.17 |
申请人 |
DITTO THOMAS D.;LYON DOUGLAS A. |
发明人 |
DITTO THOMAS D.;LYON DOUGLAS A. |
分类号 |
G01B11/00;G01B11/02;G01C3/06;G01S11/12;G01S17/08;G02B5/18;(IPC1-7):G01C3/08;G01B9/02 |
主分类号 |
G01B11/00 |
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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