Color television image pickup apparatus providing frequency interleaved color carriers and sidebands

Claim 1

A color television image pickup apparatus comprising: an optical system including a color striped filter including a plurality of first and second stripe elements, said first and second stripe elements being equally spaced blocking elements for blocking first and second color lights, respectively, said first stripe elements being dimensioned and inclined relative to the direction of a horizontal scanning line so that image signal components obtained upon each alternate scan by a scanning electron beam have a phase difference of 180* with respect to each other relative to the signal period corresponding in time to the scanning of each first element of said stripe filter, said second stripe elements being dimensioned and superimposed on said first stripe elements at different pitches than said first stripe elements and at different angles of inclination than said first stripe elements relative to said direction of horizontal scanning so that: image signal components of the second stripe elements obtained upon each alternate scan have a carrier frequency which is higher than that of said image signal components corresponding to said first stripe element; that the frequency of the color signal corresponding to said first stripe elements is interleaved with that of the color signal corresponding to said second stripe elements and the horizontal scanning frequency component of the color television signals; and that the image signal components of the second stripe elements obtained upon each alternate scan have the same phase relationship with respect to each other relative to the signal period corresponding in time to the scanning of each second stripe element; and receiving means responsive to light transmitted through said filter for forming color television signals having the frequency components corresponding to said respective first and second stripe elements.