Collimating lens is an instrument that converts light from each point in the aperture column into a parallel column of collimating light. Lens type depends on aberration requirements. For low requirements, simple lenses such as flat convex or double convex lenses may be used and a larger relative aperture is allowed. For high requirements, achromatic lenses will be used, and the relative aperture is also appropriately reduced. Collimator lens is one of the main products in Sunday. We have standard cones and also accept custom-made orders. Sunday has collimator lenses with single aspheric, doublet lenses, and triplet lenses.