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About product and suppliers:
        Alibaba.com offers 553 round fresnel lens products. About 64% of these are lenses, 20% are lamp covers & shades, and 3% are magnifiers. 

A wide variety of round fresnel lens options are available to you, such as plano, aspheric, and spherical. You can also choose from plastic, glass. As well as from optical, infrared, and achromatic. And whether round fresnel lens is plano-convex, double convex, or plano-concave. 

There are 555 round fresnel lens suppliers, mainly located in Asia. The top supplying countries are China (Mainland), Taiwan, and South Korea, which supply 98%, 1%, and 1% of round fresnel lens respectively. 

Round fresnel lens products are most popular in North America, Western Europe, and Northern Europe. 

You can ensure product safety by selecting from certified suppliers, including 44 with ISO9001, 39 with Other, and 8 with ISO14001 certification.