Lens system having color separation optics

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Details

350172, 350173, G02B 1322, G02B 1514, G02B 2714

Patent

active

044444729

ABSTRACT:
A lens system, particularly a zoom lens for color television camera is provided between the final face thereof and the image plane with a color separation optical system for example color separation prisms or a stripe filter, and is so constructed that the principal ray of each light beam entering said color separation optical system is always parallel to the optical axis, whereby all the beams are introduced into the color separation optical system under the same condition to maintain satisfactory color reproduction and polarizing characteristics.

REFERENCES:
patent: 3284566 (1966-11-01), James et al.
patent: 3547521 (1970-12-01), Ichizuka et al.
patent: 3945034 (1976-03-01), Suzuki
patent: 3976363 (1976-08-01), Toyama et al.
patent: 4058827 (1977-11-01), Ando et al.
patent: 4249805 (1981-02-01), Hilbert et al.

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