发明名称 |
Device for correcting distortion |
摘要 |
Device for correcting the differential distortion resulting from simultaneous observation of a field of view at two distinct locations through a shield transparent in a given spectral band, which shield has a shape generating the distortion when a receiver which is sensitive in the spectral band is arranged at each of the locations. The correction is effected by an optical system arranged between the shield and one or the other receiver and comprising an anamorphic assembly (11, 12) producing an anamorphosis in a first direction associated with an element (13) introducing a curvature in a second direction, while the distortion produced by this system has a direction opposite to the differential distortion.
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申请公布号 |
US4840465(A) |
申请公布日期 |
1989.06.20 |
申请号 |
US19870123034 |
申请日期 |
1987.11.19 |
申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
LOY, FERNAND R.;PERRIN, JEAN-CLAUDE;ROLLIN, JOEL |
分类号 |
G02B5/10;G02B13/10;G02B27/00;G02B27/01;G02B27/64 |
主分类号 |
G02B5/10 |
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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