Lenses


The cylindrical plano-concave lens has a concave curvature in vertical direction and no curvature in horizontal direction. In combination with a plano-convex cylindrical lens, an elliptically shaped beam can be formed into a circular beam for use in semiconductor and other laser applications.
These simple negative lenses alone form a virtual image of a distant object or a collimated light source. In combination with other optics they reduce the power of the system.
These simple plano-convex lenses have a flat surface on one side and a spherical surface on the other side. They are also very close to the shape that minimizes spherical aberration for infinite conjugate applications