Profile: Changchun Long Ze Precision Optics Co., Ltd. is a optical manufacturing company. We manufacture a wide range of optical components for many different fields like industrial laser, environmental monitoring, photography and aerospace. Our plano-convex lens is a convergent lens with a flat surface and a convex surface that focuses and collimates light. More specifically, both surfaces of a plano-convex lens work together by focusing parallel rays to a positive focus. In this way, the plano-convex lens constitutes a real image that can be easily manipulated by using spatial filters.