发明名称 Binocular microscope attachment for correction of ametropia
摘要 An attachment for a binocular microscope to provide appropriate correction for the ametropia, i.e., defective vision, of the user. The attachment includes a pair of holders which can be slipped over and frictionally held by the microscope's scope's binocular eyepiece tubes, each holder having a retainer for receiving and positioning respective eyeglass lenses appropriate for correcting the user's individual ametropia. Means are provided for preventing rotation of the eyeglass lenses when the microscope's binocular tubes are adjusted for the user's interpupillary distance, thereby maintaining the proper orientation of the lenses so that even astigmatism can be corrected. The attachment is applicable to binocular microscopes having oblique eyepiece tubes as well as those having conventional parallel eyepiece tubes.
申请公布号 US4936667(A) 申请公布日期 1990.06.26
申请号 US19890433026 申请日期 1989.11.07
申请人 CARL-ZEISS-STIFTUNG 发明人 ROEHR, WOLF-DIETER;BABIK, HELMUT
分类号 G02B7/12;G02B21/20;G02B23/18;G02B25/00 主分类号 G02B7/12
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