Custom Shape Plano Concave Lens

Plano concave lens has one inward curved surface and a flat surface.  Specifications: Material : Optical glass Diameter : 1mm ~ 300mm Focal Legnth Tolerance :+/-1% Diameter Tolerance :+0.0/-0.1mm Thickness Tolerance :+/-0.1mm Surface Quality :40/20 Centration :<3 arc minutes Clear Aperture :>90% Bevel : Protective bevel as needed Coating :Upon your request Realpoo Optics is a professional manufacturer of optical glass lenses, such as Spherical Lens, Cylindrical Lenses, Fresnel Lens, Optical Window etc. The optics can be offered with coating or without coating. Welcome to send your inquiry.