发明名称 |
Refractometer with deflecting element |
摘要 |
A refractometer comprising an optical pattern-beam projection system for projecting a pattern,light beam onto the fundus of a tested eye to measure refractive power of the tested eye, and an optical light-receiving system for receiving the pattern light beam reflected at the fundus to compute the refractive power of the tested eye. A deflecting member is inserted into an optical path of the optical pattern-beam projection system for deflecting the pattern light beam with respect to an optical axis of the optical pattern-beam projection system and then projecting the deflected pattern light beam onto the fundus.
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申请公布号 |
US5886780(A) |
申请公布日期 |
1999.03.23 |
申请号 |
US19970887264 |
申请日期 |
1997.07.02 |
申请人 |
KABUSHIKI KAISHA TOPCON |
发明人 |
FUKUMA, YASUFUMI;HAYASHI, TAKEFUMI;TAMURA, KAZUHIKO |
分类号 |
A61B3/103;(IPC1-7):G01N21/41;G02C1/04 |
主分类号 |
A61B3/103 |
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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