Optical color-separation system for use in a color television ca

Details Optical color-separation system for use in a color television ca Optical color-separation system for use in a color television ca

1978-05-31

1980-10-14

Konick, Bernard

Facsimile and static presentation processing

Static presentation processing

Attribute control

358225, H04N 909, H04N 530

Patent

active

042284589

ABSTRACT:
A color separation optical system for a color television camera of relay lens type in which a set of color separating optical elements are provided between a single first relay lens and three second relay lenses for three primary colors. The first relay lens is located substantially on the image plane of the taking lens of the television camera. A field lens is provided between the taking lens and the first relay lens. The power of the field lens is determined according to the focal length of the taking lens. The field lens is removed when the exit pupil of the taking lens is registered with the entrance pupil of the first relay lens. In this case, the first relay lens is axially moved toward the taking lens to make the front focal plane of the first relay lens registered with the image plane of the taking lens. The axial movement of the first relay lens is conducted by means of a mechanism which is operable from outside of the television camera.

REFERENCES:
patent: 3126446 (1964-03-01), Blancha
patent: 3293357 (1966-12-01), Doi et al.
patent: 3973231 (1976-08-01), Saito et al.
patent: 4080624 (1978-03-01), Ando et al.

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