发明名称 |
Magnification test apparatus |
摘要 |
A magnification testing apparatus for testing the suitability of eyeglasses is disclosed. The apparatus includes a plurality of frames for eyeglass lenses, a plurality of pairs of lenses of different magnification secured within the frames, a support means holding the frames for a user of the apparatus to position their face so as to bring each of the frames in turn into a conventional eyeglass-wearing position, and a motif of a first predetermined size that is spaced in use of the apparatus a first predetermined distance from each frame when each frame is in the conventional eyeglass-wearing position.
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申请公布号 |
US6260969(B1) |
申请公布日期 |
2001.07.17 |
申请号 |
US20000554826 |
申请日期 |
2000.09.14 |
申请人 |
CARL GASPER & ASSOCIATED PTY. LTD. |
发明人 |
GASPER CARLISLE CHARLES FREDERICK |
分类号 |
A47F7/02;A61B3/032;(IPC1-7):A61B3/02 |
主分类号 |
A47F7/02 |
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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