I found this via Optics.org. Their prices may be less than domestic prices.
Nanjing Shuncheng Optical Components Co. ,Ltd. designs, markets and manufactures high precision optical components, which are widely used in medical and laser industries. We offer high quality of precision optical components, such as plano convex lens, plano concave lens, double convex lens, double concave lens, cylindrical lens, ball len, right angle prism, penta prism, dove prism, rhomboid prism, optical windows, filters, IR optics, beam splitters and mirrors. We also do anti-reflection coatings and metallic high reflection coating. Objective lens and eyepiece lens are also available from us.
