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semi finished lens
A. introduction about photochromic lens, Photochromic lenses are lenses that darken on exposure to ultraviolet (UV) radiation. Once the UV is removed (for example by walking indoors) , the lenses will gradually return to their clear state.
B. our company start producing Photochromic lens in 2002, with abundant production experience, enjoys good reputation by many customers, using unique mixing technology hypo optical producing unique color changing effect, welcomed by all kinds of customers.
C. with reflective index 1.56, our photochromic provide many types as round-top, flat-top lens, bifocal lens, semi-finished lens, progressive lens.
D. Fast and equal color changing effect, Grey&Brown available, Anti-ultraviolet radiation protection