UV fuses silica Plano concave lens

A plano-concave lenses (flat concave lens) is a negative lens( diverging lens), with a flat surface on one side and a concave spherical surface on the other. Focal length is negative in plano concave lens, causing the light diverge. Main Feature Shape and optical path: the middle part is thin while the edges are thick.when parallel light is incident, it spreads out and the reverse extension lines of this phenomenon intersect at the virtual focus. Imaging principle: when imaging a real object, the image always appears upright and reduced, and the image and the object are on the same side of the lens Application Scenarios *Beam expansion:often combined with plano convex lens, used in laser beam expansion systems *Increase the system focal length:introduce a negative lens such as (biconcave lens) into the optical system, the equivalent focal length can be extended *Optical path compensation:used to compensate for the spherical aberration or aberration caused by the positive lens such as b…