C-Lens

C-lens is a small cylindrical lens with axial light transmission, which is mainly used inthe fields of optical communication and laser technology. Using a C-lens to make fiber collimator can collimate the divergent light emitted from the fiber into parallel beam and couple parallel beam into the fiber. C-lens is also used to collimate the divergent beam emitted by a laser (LD) or couple the parallel beam into a detector (PD).