Single tube color television camera with color strip filters

Claim 1

A single tube color television camera comprising a picture tube and two color strip filters disposed one behind the other on the optical image axis, said color strip filters having different color filters effects, both of said filters being oriented at the same angle of rotation in respect of the vertical image axis and oriented in opposite directions with respect to each other, whereby the output signal of the picture tube is composed of three frequency spectrums which are interleaned with each other in the frequency axis, a first of said frequency spectrums corresponding to a luminance signal and consists of spectral lines for integral multiples of the line frequency, and the other two frequency spectrums corresponding to respective color signals and consist of spectral lines which occur in the individual frequency spectrum and in intervals of the value of the line frequency and shifted in respect of the spectral lines of said first frequency spectrum by a fraction of the line frequency in opposite directions for the two color signals, and said television camera further comprising a decoding arrangement including a comb filter for splitting the output signals of the picture tube, said comb filter including an input connected to receive the output signal of the picture tube, a first output for said luminance signal, a second output for one of said color signals, and a third output for the other of said color signals, so that all three frequency spectrums are available at said outputs in their entire scope and separated from each other.