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.
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
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