发明名称 |
Achromatic shearing phase sensor for generating images indicative of measure(s) of alignment between segments of a segmented telescope's mirrors |
摘要 |
An achromatic shearing phase sensor generates an image indicative of at least one measure of alignment between two segments of a segmented telescope's mirrors. An optical grating receives at least a portion of irradiance originating at the segmented telescope in the form of a collimated beam and the collimated beam into a plurality of diffraction orders. Focusing optics separate and focus the diffraction orders. Filtering optics then filter the diffraction orders to generate a resultant set of diffraction orders that are modified. Imaging optics combine portions of the resultant set of diffraction orders to generate an interference pattern that is ultimately imaged by an imager.
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申请公布号 |
US7106457(B1) |
申请公布日期 |
2006.09.12 |
申请号 |
US20040857372 |
申请日期 |
2004.05.21 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION |
发明人 |
STAHL H. PHILIP;WALKER CHANDA BARTLETT |
分类号 |
G01B9/02 |
主分类号 |
G01B9/02 |
代理机构 |
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代理人 |
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地址 |
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