The term aspheric mirror literally means a mirror that is not spherical. More-specific terms like parabolic mirror, hyperbolic mirror, and flat mirror are generally used for specific mirrors to which they apply, the term aspheric used when speaking of properties applying to them in general, or for shapes without such a well-known specific term. The mirror shapes in astronomical optics often termed aspheric are mirrors that simultaneously incorporate two types of curvature, with one dominating in the center of the mirror and another dominating toward the edges.

Some optics designs that eliminate various aberrations make good use of use such aspheric mirrors or aspheric lenses, i.e., lenses incorporating such curves.

Aspherical workshop equipped with German-made Satisloh grinding and polishing machines, U.S Single Point Diamond Turning lathe, self-developed aspherical polishing machines,total of 30 sets of equipments. Along with 1 Mahr Profiler. BOXIN is able to process diameter from 10mm to 450mm, PV-0.1μm. Annual output is 50,000 pieces.