发明名称 |
Optometry apparatus and diffraction grating plate used in the same |
摘要 |
An optometry apparatus of the present invention comprises an optical element 26 provided in a correction optical system 1, which has a spherical lens 24 and a cylindrical lens 25 and which corrects examined eyes E to be subjected to optometry, wherein the optical element is used so that targets are seen as if they were dispersed in a plane orthogonal to an optical axis O1 and shown simultaneously at a different distance or position in a direction of an optical axis through the eyes E to be subjected to optometry.
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申请公布号 |
US2002167641(A1) |
申请公布日期 |
2002.11.14 |
申请号 |
US20020125907 |
申请日期 |
2002.04.19 |
申请人 |
KABUSHIKI KAISHA TOPCON |
发明人 |
FUKUMA YASUFUMI;KATO YASUO;FUJINO MAKOTO |
分类号 |
A61B3/02;A61B3/032;A61B3/036;(IPC1-7):A61B3/10 |
主分类号 |
A61B3/02 |
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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