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发明名称
书签式放大镜
摘要
一种书签式放大镜,由超薄平面镜片、书签卡和飘带组成,其放大镜的镜片采用材质为透明硬质塑料或有机玻璃、镜面为锯齿状集光圈折射放大的超薄平面镜片,代替传统的材质为硬质玻璃、镜面为凸起圆弧状抛物面镜片使用。本实用新型书签式放大镜可放大5~6倍,是便于随身携带、易于夹放,经济实用的看书学用品。
申请公布号
CN2085526U
申请公布日期
1991.09.25
申请号
CN91201237.4
申请日期
1991.01.26
申请人
许尔领
发明人
许尔领
分类号
G02B25/00
主分类号
G02B25/00
代理机构
代理人
主权项
1、一种超薄平面书签式放大镜,由超薄平面镜片、书签卡、飘带组成,其特征呈书签状,放大镜的镜片材质为透明硬质塑料或有机玻璃薄片、厚度为0.5~1.5毫米,镜片的表面形状为锯齿状集光圈折射放大的超薄平面镜片。
地址
100081北京市海淀区大柳树北23号
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