Title: Optical system for color television camera

Abstract: A zoom lens system of a color television camera is divided into a front lens component comprising a zooming lens system and a front part of a relay lens system, and three equivalent rear lens components each comprising a rear part of the relay lens system. A color separating prism system is located between the front and the rear parts of the relay lens system. The rear lens components are convergent so that the angle of light beams incident into the prism system may be smaller than that of the light beam incident into the image pick-up tubes.

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Inventors: Toyama, Seiji (Kawaguchi, JA)
Yoshikawa, Kazuo (Omiya, JA)

Application Number: 484973
Filing Date: 1974-07-01
Publication_date: 1976-08-24
Assignee: Fuji Photo Optical Co., Ltd. (Omiya, JA)
Primary Class(es): 359/629 348/337, 359/683
Other Classes:
US Patent Ref:

2963937	Dec, 1960	Raitiere	350/173.
2971051	Feb, 1961	Back	350/173.
3062916	Nov, 1962	Kingsbury et al.	350/173.
3333053	Jul, 1967	Back	350/173.
3481664	Dec, 1969	Takano	350/186.
3521944	Jul, 1970	Kishikawa	350/173.
3527523	Sep, 1970	Travis	350/173.
3547521	Dec, 1970	Ichizuka et al.	350/173.
3615125	Oct, 1971	Higuchi et al.	350/184.
3784284	Jan, 1974	Nakamura	350/186.

Other Refs:
Primary Examiner: Rubin, David H.
Assistant Examiner:
Attorney: