Optical Prisms are used to redirect light at a designated angle. Optical Prisms are ideal for ray deviation, or for adjusting the orientation of an image. An Optical Prism's design determines how ...

Penta Angle Prisms are widely used in laser level, Image system, precision system, and optical area. For penta prism, the deviation angle of 90° is independent of the orientation of the prism, thus it ...

THERE are two criteria for estimating the value of Dr. Silberstein's latest work. On one hand it possesses great theoretical interest, yet on the other it lays claim to practical usefulness. One must ...