Color image pickup apparatus having a plurality of color filters

Details Color image pickup apparatus having a plurality of color filters Color image pickup apparatus having a plurality of color filters

1993-10-07

1996-07-30

Metjahic, Safet

Television

Camera, system and detail

Combined image signal generator and general image signal...

348229, 348279, H04N 907

Patent

active

055416489

ABSTRACT:
A color image pickup apparatus includes an image pickup element, an optical low-pass filter, and a memory. The image pickup element has four types of color filters which are arranged to form an offset sampling structure in which color filters of different colors are repeatedly arranged at a two-pixel period in the horizontal direction, and color filters of different colors are repeatedly arranged at a two-pixel period in the vertical direction while being offset in the horizontal direction by one pixel. The optical low-pass filter has an optical member for splitting an incident light beam into two light beams separated from each other by a distance D in a direction inclined clockwise or counterclockwise at an angle .theta. with respect to a scanning direction of the image pickup element, the distance D satisfying conditions defined by

REFERENCES:
patent: 4845548 (1989-07-01), Kohno
patent: 5034805 (1991-07-01), Ishizaka
patent: 5121193 (1992-06-01), Nishimura
patent: 5249041 (1993-09-01), Shiraishi

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