Optical Surfaces Ltd. is a leading international supplier of concave and convex spherical mirrors made to your exact specification. A spherical mirror is a mirror which has the shape of a piece cut ...

Drawing upon its uniquely stable manufacturing environment - Optical Surfaces Ltd. routinely produces the highest quality concave spherical mirrors for Schlieren Imaging systems in a range of ...

The radius of curvature of a mirror determines its magnification factor and its focal length. Newton used a concave spherical mirror to make his reflecting telescope, a design that is still ...

The limestone installations (see right) are concave and focus sound like a ... wasn’t actually parabolic, they were spherical mirrors. The reason is that a parabolic mirror has to move to ...