NEW HIGH-INDEX VISOLETT MAGNIFIER

被引：0
|
作者：
FONDA, GE
机构：
来源：
ANNALS OF OPHTHALMOLOGY | 1992年 / 24卷 / 08期
关键词：
D O I：
暂无
中图分类号：
R77 [眼科学];
学科分类号：
100212 ;
摘要：
The high-index Visolett magnifier (index, 1.806) is an optically designed glass paperweight magnifier. It magnifies 2.49x, is 32mm in diameter, nonfocusable, and rests on paper. All Visoletts commercially available are made of crown glass (index, 1.523). The 32mm high-index Visolett has become commercially available recently. The use of high-index material increases the image size by 39%.
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页码：303 / 306
页数：4
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