Plano convex lenses, Plano concave lenses, Bi-convex lenses, Bi-concave lenses, meniscus lenses, achromatics lenses, ball lenses, aspheral lenses and cylindrical lenses Specifications: Material: Bk7, ...

Lenses can either be convex/ converging or concave/ diverging. Convex lenses take parallel light rays from distant objects and bend them to converge at a single point known as the focal point.

Changchun Yutai optics company can produce convex concave lenses according to drawing or request. 1.Materials of the lens can be K9 glass, fused silica,ZF3,F4 and so on( CDGM glass);(Also available ...

Lenses are used in cameras, telescopes, binoculars, microscopes and corrective glasses. A lens can be converging (convex) or diverging (concave).

Lens is a transparent glass which is bounded by two spherical surfaces. The light rays are refracted after passing through the lens. It is of two types, convex lens and concave lens.