CaF2 Double convex lens with AR coating

Double convex lens also known as bi convex lens is the most typical positive lens in an optical system. both sides are convex, with the middle part being thick and edges being thin, have positive focal length, two convex surfaces with equal radius of curve, commonly used in camera,microscopes and telescopes, also focusing or alignment on laser processing and fiber coupling.   Difference between plano convex lens and double convex lens Dimension Double convex lens plano convex lens( flat convex) Structure bi convex symmetry one flat and one convex( asymmetric) Aberration when the object image is conjugate, the spherical aberration is the smallest when the convex surface faces the parallel light, the spherical aberation is the smallest Application general imaging,symmetry system alignment, focusing, asymmetric optical path   Bi convex lens and Bi concave lens are two fundamentally different types of basic spherical lens in optics, with completely opposite functions, the for…