mirror and prism system capable of partly reflecting, partly transmitting light.
A prism or dichroic mirror device used behind a color TV camera lens to divide the light into the three primary colors.
An optical device using controlled reflection to produce two beams from a single incident beam.
An optical device used to split a single image path or light beam into two or more separate paths.
A device for dividing an optical beam into two or more separate beams. Note: An example of a beam-splitter is a partially reflecting mirror.
A beam splitter is an optical device that splits a beam of light in two. It is the crucial part of most interferometers.