发明名称 |
Variable magnification lens system |
摘要 |
A variable magnification lens is exemplified by a 6-element symmetrical zoom lens for use between fixed conjugates at magnification ranging from 1.007X to 0.615X. The outer elements remain fixed relative to the unit. The inner elements form two integral pairs on each side of the central aperture and move symmetrically with respect to it to effect magnification change while maintaining a substantially flat image field over the entire magnification range.
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申请公布号 |
US4061419(A) |
申请公布日期 |
1977.12.06 |
申请号 |
US19760663397 |
申请日期 |
1976.03.03 |
申请人 |
XEROX CORPORATION |
发明人 |
PRICE, EDGAR ELMER;SPURLES, LOUISE LEONE |
分类号 |
G03B27/34;G02B13/24;G02B15/16;G02B15/20;G02B17/08;(IPC1-7):G02B15/14 |
主分类号 |
G03B27/34 |
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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