Solid-state color imaging apparatus

Abstract

Abstract An interline transfer CCD imaging apparatus in which a rectangular array of photoelectric elements create and store charges which are then shifted vertically by a set of vertical CCD registers to a horizontal CCD register has a corresponding array of color filters in front of the photoelectric elements. The color filters are arranged so that two picture elements form one cycle horizontally, and four picture elements for- mone cycle vertically. From left to right in the first and fifth rows 1, and 1 5 , cyan C y ' and yellow Ye filters are repeated. In rows 1 2 and 1 6 magenta M g ' and green G' filters are repeated. In rows 1 4 and 1 8 the magenta M and Green G'filters are repeated in the opposite order. The cyan C y ' filter transmits green, blue and red light, the red transmission being about 50%. The yellow Ye filter transmits green and red light but not blue. It is arranged that the NTSC color difference signal for rows 1 1 , 1 3 , 1 5 and 1 7 is zero at a reference color temperature for achromatic light. The green G' filter is formed by laminating a cyan Cy' and a yellow Ye filter together. The magenta Mg' filter transmits a higher percentage of green light than in the prior art, and it is arranged that the NTSC color difference signal for rows 1 2 , 1 4 , 1 6 and 1 8 is zero at the chosen reference color temperature for achromatic light.

Inventors

• 👤 Akiyoshi Kohno
• 👤 Nobukazu Teranishi

Bibliographic Details