Aspheric lenses have surfaces which do not resemble segments of a sphere or cylinder. Instead, aspheric lenses ha ve a profile that changes in curvature across the surface. This type of lens is ...
Optical Surfaces Ltd is a leading producer of large diameter aspheric lenses used as critical focusing optics in high-power laser research. Large diameter Aspheric lens. Image Credit: Optical ...
A spherical surface is defined by only one parameter, the radius or curvature of the surface. If the surface is refractive, with different indices of refraction before and after the surface, then the ...