Patent ID: 6542193
Filing Date: 2003-04-01
Classification: G02B,H04N

Abstract:
An optical system for a TV camera including a color-decomposing prism disposed in a TV camera main body, said optical system comprising:a still-image-luminous-flux-dividing prism, disposed adjacent to said color-decomposing prism, for dividing out a part of a luminous flux incident on said optical system such that thus divided part is guided to a still-image-capturing device; wherein said color-decomposing prism is constituted by four blocks, one of said four blocks being used as said still-image-luminous-flux-dividing prism, the remaining three blocks being used as respective color-decomposing prisms for three primary color light components; and wherein, in said four blocks of said color-decomposing prism, the block closest to a luminous flux entrance side is used as said still-image-luminous-flux-dividing prism.