双凸球透镜
平凸透镜，平凹透镜，双凸透镜，双凹透镜，婉约透镜，特殊球透镜等等。
平凸球透镜规格说明如下：
*材料:BK7或者其他材料
*焦距:+/-1%
*中心厚度公差:+/-0.01mm
*中心偏:1 弧分
*面型:λ/2@ 633nm平面
*光洁度:40/20
*通光孔径>90%
*保护性倒角:0.25mm* 45 度
*镀膜根据客户要求
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