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

1977-01-19

1978-03-21

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358223, 358217, H04N 316, H04N 909

Patent

active

040806243

ABSTRACT:
An optical color-separation system for use in a color television camera having an image plane compensating lens associated with each of three camera tubes. Each compensating lens is provided with a diffusing area lying on the periphery thereof so as to be out of the image forming optical path. Photo-diodes are provided in opposing relation to the diffusing area. Light from the photo-diodes passes through the diffusion area to provide bias light for the camera tube.

REFERENCES:
patent: 3590145 (1971-06-01), Schneider et al.
patent: 4031551 (1977-06-01), Nobutoki et al.

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