发明名称 |
Direct determination of modulation transfer function by moire deflectrometry |
摘要 |
A system and method for determining modulation transfer function (MTF) of an optical element or system employs a moire deflectometer. A selected central portion of monochromatic light is directed to the first grating of the moire deflectometer through or from the optical system, resulting in a moire pattern in which the contrast along an axis incident to the moire fringes is indicative of the MTF of the optical system for a particular spatial frequency, which is dependent on the spacing between the gratings of the moire deflectometer.
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申请公布号 |
US4639132(A) |
申请公布日期 |
1987.01.27 |
申请号 |
US19840627657 |
申请日期 |
1984.07.03 |
申请人 |
THE STATE OF ISRAEL |
发明人 |
GLATT, ILANA;LIVNAT, AMINADAV;KAFRI, ODED |
分类号 |
G01M11/02;(IPC1-7):G01M11/00 |
主分类号 |
G01M11/02 |
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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