Color television camera equipment

Claim 1

A color television camera equipment comprising an image pick up tube, a striped color filter assembly interposed between an object and said image tube, a bias light source, and a striped filter for generating a reference frequency and disposed so as to selectively transmit the light from said bias light source and combine said light with light transmitted through said striped color filter assembly, said striped color filter assembly comprising first and second striped color filters; said first color filter comprising a plurality of alternately arrayed first and second color filter strip elements, said first color filter strip element being capable of transmitting all of the light from said object while said second color filter strip element being capable of preventing the transmission of the light from said object falling into the range of at least one first color; said second color filter comprising a plurality of alternately arrayed third and fourth color filter strip elements, said third color filter strip element being capable of transmitting all of the light from said object while said fourth color filter strip element being capable of preventing the transmission of the light falling into the range of a color different from said first color; said strip elements of said first and second striped color filters being of substantially equal widths and said first and second striped color filters being disposed so that stripe images of said filters focused on said pick-up tube are out of phase by one-half of said width relative to each otHer.