Our company produces flat convex lenses, flat concave lenses, double concave lenses, double convex lenses, and meniscus lenses, with diameters up to 450mm.

The meniscus lens is biconvex, meaning one side is concave and the other is convex. Both surfaces contribute equally to the refractive power; the focal length of the lens can be positive (converging) or negative (diverging). The meniscus lens is commonly used as a corrective lens for objectives; their primary function is to correct image aberrations. They can also be used as condensers in illumination systems.