Color television camera optical system

Details Color television camera optical system Color television camera optical system

1973-12-06

1976-02-24

Griffin, Robert L.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 55, H04N 907

Patent

active

039407888

ABSTRACT:
An optical system in a single or double tube color television camera for minimizing color shading, moire patterns and color beats includes along the image optical axis a phase grating low pass filter, a color encoding filter and a lenticular lens member oriented relative to each other and the image scanning to minimize interference between the color encoding filter and striped patterns in the viewed object. The color encoding filter is striped, the low pass filter is either striped or has regularly longitudinally and transversely spaced phase retarding projections and the lenticular lens member includes transversely spaced longitudinal cylindrical lenses or regularly transversely and longitudinally spaced convex projections.

REFERENCES:
patent: 2733291 (1956-01-01), Kell
patent: 3588326 (1971-06-01), Frohbach
patent: 3756695 (1973-09-01), Mino et al.
patent: 3757033 (1973-09-01), Frohback et al.
patent: 3768888 (1973-10-01), Nishino et al.
patent: 3821795 (1974-06-01), Okano

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