8 Russia 
5 Singapore 
5 Canada 
4 UK 
3 India 
2 Ukraine 
1 China 
1 Finland 
1 Nigeria 
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concave convex lenses Photos Catalog - page 11 - WorldBid B2B Market
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Candela Focusing Lenses For Fiber And Yag Lasers Alex, Mini Slider LensGeneral Beauty Products - Changchun Deln Optics Technology Co., Ltd. - China - September 13, 2017 - contact company for priceDeln optics makes a lot of Candela focusing lenses for Fiber and YAG lasers. The surface polishing quality and coating of these lenses are excellent and will work for 755nm and 1064nm or both 755nm &1064nm. Inventory specifications are as follows...
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Optical Bk7 Zf5 Glass Achromatic Lenses Doublets Triplets Glued CementedLenses / Optical Components - VY Optics Photoelectric Technology Co.,LTD - China - April 23, 2014 - contact company for priceAchromatic Lenses/ cemented lenses/ glued lenses/ doulets are achromatic consists of a positive low- index Crown Glass lens element cemented to a negative high- index Flint Glass lens element. The elements are chosen so as to cancel chromatic aberrat...