Dove prism inverts the orientation of an image, so they are also called image rotation or reversion prisms. They are shaped like right angled prisms with the right angle truncated. When such a prism ...

A right angle prism is an optical prism designed to deviate light by 90° or 180°, depending on the orientation of the prism and the face through which light enters. The joining edges and faces are ...

Reader inquiries frequently concern the optimal binocular type for astronomical observation. Two primary binocular prism designs are distinguished: Porro prism and roof prism. Porro prism binoculars ...

A prism has a constant cross-section throughout its length. When the cross-section is a triangle, the prism is called a triangular prism. When the cross-section is a hexagon, the prism is called a ...