Prince Optical Works offers Double Convex Lens for Eye Pieces. Prince Optical Works also manufactures optical components for scientific, educational instruments, astronomical audio visual, medical, ophthalmic instruments etc. The Double Convex Lens for Eye Pieces has two spherical out ward curved surfaces, parallel to each other with positive focal length. The Double Convex Lens for Eye Pieces is made from optical extra white glass. This Double Convex Lens is available in sizes ranging from 6.1 to 25.0 mm.