Light-reflecting prisms intended to deter geese and other waterfowl from landing in Emerson Park and Owasco Lake were installed on Friday. The installation comes at the start of migration season for ...

Right angle prisms are simply triangular blocks of glass with two 45° & one 90° angles. The precision grade right angle prisms have high surface quality and tight tolerance angles. The normal use for ...

Rotate and reverse images and deflect light at 90° bends. Suitable for telescopes and any optical instrument that requires the image to be flipped from the objective, turned over to the right, and ...