Optical system for color television camera

Claim 1

An optical system for a color television camera comprising a front lens component including a zooming system and a front part of a relay lens system through which the light from the zooming system is converged, a color separating prism system located in the converging light, said prism system having an entrance face and a plurality of exit faces for giving separated light beams of different color located behind said front lens component, and equivalent convergent rear lens components of the same number as said exit faces located behind the exit faces, said convergent rear lens components including the rear part of said relay lens system which has a positive power to further converge the light from the prism system, whereby the angle of marginal light beams defining the F-number of the optical system is made smaller than that of the beams incident into the focusing plane of image pick-up tubes located behind said rear lens components.