发明名称 |
Color corrected viewfinder including a negative power lens component having a diffractive surface |
摘要 |
A viewfinder having an optical axis and comprising a negative lens component including a lens element having a first diffractive surface which introduces a phase modification phi (r) into a light wavefront passing through this diffractive surface and a positive lens component receiving phase modified light from the negative power lens component.
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申请公布号 |
US5715090(A) |
申请公布日期 |
1998.02.03 |
申请号 |
US19960602516 |
申请日期 |
1996.02.20 |
申请人 |
EASTMAN KODAK COMPANY |
发明人 |
MEYERS, MARK M. |
分类号 |
G02B27/44;(IPC1-7):G02B27/44;G02B3/08;G02B13/04 |
主分类号 |
G02B27/44 |
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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