Apparatus for producing a full resolution color photographic copy of a color video signal

Claim 1

Color video printer apparatus for producing a color photographic copy from a color video signal comprising: monochrome electronic display means for displaying an image of a video signal; an exposure station located along an optical path from said display means; video signal circuit means for providing a color video signal constituting frames of interlaced odd and even fields repeated at broadcast field frequency, wherein each field includes three concurrent color component video signals respectively representing first, second and third primary colors of a color field image; a continuously movable color filter having filters corresponding to said first, second and third primary colors, said primary color filters being sequentially movable into said optical path in synchronism with said field frequency of said color video signal; selectively actuatable gate means, electrically connected between said video signal circuit means and said display means, for applying to said display means one of the three concurrent color component video signals provided by said video signal circuit means; and means for actuating said gate means in response to detection of said first primary color filter being moved into said optical path, to apply to said electronic display means a sequence of six consecutive color component video field signals constituting odd and even fields respectively of each of said first, second and third primary colors, in the color sequence of first primary color, second primary color, third primary color, first primary color, second primary color, third primary color, as respective corresponding color filters are sequentially moved into said optical path, such that said display means produces a sequence of six consecutive monochrome images which are filtered by respective corresponding primary color filters to expose a photographic element positioned at said exposure station to a sequence of six color field images constituting a full frame of a color video image.