Custom Concave Lens Double concave Spherical Plano Concave Lens

The plano-concave lens diverges the parallel light outward,and the focus of the plano-concave lens is negative,spherical aberration,coma,

and distortion,Similar to plano-convex lenses,one side of the curved surface generally faces the far object surface or infinity.

The double concave lens is similar to the plano-concave lens.The focus is negative,but the parallel incident light diverges outward.

The two side surfaces of the double concave lens have the same radius of curvature.They are generally used for beam expansion 

and projection systems to increase the focal length.

Applications:Optical imaging,astronomical observation,scientific research,military industry and other precision instruments.