Double Concave Lenses are used in beam expansion, image reduction, or light projection applications. These lenses are also ideal for expanding the focal length of an optical system. Double-Concave Lenses, which have two concave surfaces, are Optical Lenses with negative focal lengths.
Our company is a professional customized-oriented optical company. Our main products are prisms including triangular prisms,penta prisms,roof prisms. Lens such as plano convex,plano concave,biconvex,biconcave. All this products are have kinds of sizes

Name:Optical Lens Biconvex Lens Custom Double Convex Lens
Material: BK7, LaSFN9 glass,Ohara S-LAH71 glass or other optical glass
Surface Quality: 20-10
Diameter: 1.8mm+/-0.005