King Kowok Optics Co. Ltd, Hong Kong based and located in Dongguan China, specailizes in producing optical lens for 15 years. Our main products are glass lenses with spherical or aspherical designs. They are used for stage lighting lens, LED lens, conderser lens, zooming lens, LCD & OHP projector lens, optical & medicinal equipment lens, optical thin film and so on. OEM and customer design are both welcome. We promise we can provide high quality lens with reasonable price and on time service for you