Aspherical rod lens and method of manufacturing aspherical rod lens

摘要

An aspherical rod lens that converts light emitted from a predetermined light source or an emittance end of an optical fiber into predetermined light, the aspherical rod lens has a first surface having either a spherical surface or a flat surface with which either the light source or the emittance end is in contact; and a second surface that substantially opposes the first surface, the second surface having an aspherical shape through which the light emitted from either the light source or the optical fiber passes, the second surface converting the light into either collimated light or a converged light beam. <IMAGE>