发明名称 |
Ophthalmic photographic apparatus |
摘要 |
In an opthalmic photographing apparatus, capable of photographing the fundus of an eye to be examined at a variable magnification, being provided with a ring slit in an illuminating optical path at a position substantially conjugate with the front-eye-part and being further provided with a baffle at a position substantially conjugate with the crystalline lens, the slit width of a ring slit image projected onto the eye to be examined and further the size of a baffle image are variable with a magnification change.
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申请公布号 |
US4679919(A) |
申请公布日期 |
1987.07.14 |
申请号 |
US19860884305 |
申请日期 |
1986.07.15 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
ITOH, YUJI;TAKAHASHI, JUNICHI |
分类号 |
A61B3/12;A61B3/14;(IPC1-7):A61B3/14;G03B29/00 |
主分类号 |
A61B3/12 |
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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