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 ...

Prisms are commonly used in spectroscopy for dispersing or controlling the direction or polarisation of light. This can be helpful for splitting the incoming light into its wavelength components to ...

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 ...

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 ...