发明名称 |
Aberration correction method and aberration correction apparatus. |
摘要 |
<p>A method of and apparatus for efficiently correcting an aberration of an optical system used to record a hologram at the stage of reconstructing an image of the hologram. At the stage of reconstructing an image of a hologram (3), which contains the record of interference fringes formed by a reference plane wave and an object wave modulated by a sample, by applying a plane wave for reconstruction to the hologram (3) from a laser (1), an aberration of an optical system used to record the hologram (3) is canceled by the phase distribution on a liquid crystal panel (6) having a spatial phase modulation function, which is disposed on the Fourier transform plane, thereby correcting the aberration. The phase distribution on the liquid crystal panel (6) can be changed flexibly by a computer (9) in accordance with the aberration coefficients or degree of defocusing of the recording optical system. <IMAGE></p> |
申请公布号 |
EP0550886(A2) |
申请公布日期 |
1993.07.14 |
申请号 |
EP19920121882 |
申请日期 |
1992.12.23 |
申请人 |
RESEARCH DEVELOPMENT CORPORATION OF JAPAN;TONOMURA, AKIRA |
发明人 |
CHEN, JUN;LAI, GUANMING;ISHIZUKA, KAZUO;TONOMURA, AKIRA |
分类号 |
G02B27/00;G02B27/46;G02F1/13;G02F1/139;G03H1/00;G03H1/22;G03H5/00 |
主分类号 |
G02B27/00 |
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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