JPS6364183U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the color imaging device of the present invention, FIG. 2 is a block diagram of an example of the configuration of the previously proposed color imaging device, and FIG. 3 is a block diagram of a color separation striped filter. Plan view of part 1, 4th
This figure is a frequency allocation diagram of signals, and FIG. 5 is a plan view for explaining a pattern area for generating an index signal. O...Imaging object, 1...Imaging lens, 2...
Image pickup tube, 3... Deflection yoke, 4... Photoelectric conversion section of image pickup tube 2 (target having a photoelectric conversion surface), F
...Optical color separation striped filter (color separation striped filter), 5... Front plate of image pickup tube 2, PrA... Preamplifier, LPFy, LPFl... Low pass filter (low pass filter) , BPF...Band pass filter (
bandpass filter), MA...storage device, PCOMP...
...Phase comparison circuit, FCOMP...Frequency comparison circuit, SHs, SHe...Sample hold circuit, S
SG...Reference signal generator, SDET1, SDET
2... Synchronous detection circuit, MTX... Matrix circuit, 6 to 12... Output terminal, OSCv... Voltage controlled oscillator, VDL... Variable delay circuit, OSC...
Oscillator, VCO...Resettable oscillator, MM...
...One-shot multi-vibrator.

Claims (1)

[Scope of utility model registration request] The phase of the fundamental wave component of the image pickup tube output signal is determined by repeating a specific array pattern of multiple types of color strips, each having a predetermined strip width, and the phase of the fundamental wave component of the image pickup tube output signal is determined in accordance with the repetition of the array pattern. A color separation striped filter, in which the colors of the plurality of color strips are set so as to vary depending on the color, is provided in the optical path to the photoelectric conversion section of the image pickup tube, and A configuration arrangement in which an optical image of 2 is applied to a photoelectric conversion section of an image pickup tube through a color separation striped filter, a frequency conversion circuit that converts the frequency of an output signal of the image pickup tube, and the above-mentioned frequency conversion circuit. A storage device capable of arbitrarily storing an information signal corresponding to at least one frame period of a frequency-converted image pickup tube output signal; storing an information signal corresponding to at least one frame period of the frequency-converted signal in the storage device, obtaining a reference signal for color signal demodulation based on the information signal stored in the storage device; In a color imaging device in which a predetermined color signal is demodulated from the output signal of the image pickup tube by synchronous detection, etc., the phase of the output signal of the image pickup tube frequency-converted by the frequency conversion circuit described above and the phase of the output signal of the image pickup tube as described above are determined. A variable delay is provided between the above-mentioned frequency conversion circuit and an oscillator that oscillates a carrier signal for frequency conversion of the error signal output from the phase comparison circuit that compares the phase of the signal read from the storage device. Using the reference signal obtained from the storage device as a reference signal, which is given as a control signal to the circuit, the changes on the time axis of the output signal of the image pickup tube whose frequency has been converted by the frequency conversion circuit are calculated on the time axis of the reference signal. A color imaging device adapted to match the change mode of