发明名称 |
Fourier transform lens assembly and optical information processor employing same |
摘要 |
A Fourier transform lens assembly suited for use in an optical information processor includes a first lens group having a positive power, a second lens group having a negative power disposed on one side of the first lens group, and a third lens group having a positive power disposed on the side opposite to the first lens group with respect to the second lens group. The distance between a front focal plane and a back focal plane of the Fourier transform lens assembly is less than two times a focal length of the Fourier transform lens assembly.
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申请公布号 |
US5383056(A) |
申请公布日期 |
1995.01.17 |
申请号 |
US19920952269 |
申请日期 |
1992.09.28 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
NISHII, KANJI;ITO, MASAMI;FUKUI, ATSUSHI |
分类号 |
G02B13/00;G02B27/46;G03H1/08;G03H1/16;G06E3/00;(IPC1-7):G02B27/46 |
主分类号 |
G02B13/00 |
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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