发明名称 |
Eye refractive power measuring apparatus |
摘要 |
An improved eye refractive power measuring apparatus is disclosed. The apparatus includes a measurement system for projecting a measurement target image to the retina of an eye to be tested and measuring the refractivity of the eye to be tested by detecting the focussing state of the measuring target image. In addition, it has an eye position detection system for detecting a shifted amount from a proper position of the eye to be tested and an arrangement for correcting a measurement result of the eye refractivity based on such detected result.
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申请公布号 |
US4744648(A) |
申请公布日期 |
1988.05.17 |
申请号 |
US19860866247 |
申请日期 |
1986.05.23 |
申请人 |
TOKYO KOGAKU KIKAI KABUSHIKI KAISHA |
发明人 |
KATO, YASUO;FUKUMA, YASUFUMI;HORIGUCHI, KIWAMI;KAMIYAMA, KIICHI |
分类号 |
A61B3/10;A61B3/103;(IPC1-7):A61B3/10 |
主分类号 |
A61B3/10 |
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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