发明名称 |
HOLOGRAPHIC FIGURE SENSOR |
摘要 |
Methods and means are provided for making measurements of the optical figure of a remote thin deformable mirror (16). Relatively small holographic elements (24) are formed on portions of the mirror (16). A laser beam is transmitted to illuminate the elements (22). Diffracted laser beam signals from the elements (22) are used to produce a hologram or corrector plate (34) which is subsequently used to produce reference signals representative of the original shape of the mirror. When the holographic elements (22) of the mirror are subsequently illuminated by a laser beam, the diffracted signals reconstruct the reference signals recorded or stored on the corrector plate (34). The output signal represents the deviations of the mirror from its original shape. |
申请公布号 |
DE3375821(D1) |
申请公布日期 |
1988.04.07 |
申请号 |
DE19833375821 |
申请日期 |
1983.09.16 |
申请人 |
THE PERKIN-ELMER CORPORATION |
发明人 |
SHEMWELL, DAVID M. |
分类号 |
G01B9/021;G01M11/00;G02B5/32;(IPC1-7):G01B9/021;G01M11/02 |
主分类号 |
G01B9/021 |
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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