JPH0197691U - - 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 diagram for explaining a configuration example of some components used in the color imaging device shown in FIG. 1, and FIG. 3 is a block diagram of an already proposed color imaging device, FIG. 4 is a block diagram of an already proposed color imaging device, and FIG. 5 is a plan view showing a configuration example of an optical color separation striped filter (color separation striped filter). , FIG. 6 is a signal arrangement diagram. DESCRIPTION OF SYMBOLS 1... Image pickup lens, 2... Image pickup tube, 3... Deflection yoke, 4... Photoelectric conversion section of image pickup tube 2 (target having a photoelectric conversion surface), 5... Front plate of image pickup tube 2, 6 to 9
...output terminal, F...optical color separation striped filter (color separation striped filter), PrA...preamplifier, LP
Fy, LPF...low-pass filter, O...imaging object,
BPF... Bandpass filter, FCONV1 to FCONV
5...Frequency conversion circuit, FCONVa, FCONV
b...Frequency conversion circuit, LM...1 line memory (second storage device), MA...storage device (first storage device), SSG...standard signal generator, FMP...frequency multiplier, MTX...matrix circuit, SDET1
, SDET2...synchronous detector.

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 the image sensor is applied to a photoelectric conversion section of an image pickup tube through a color separation striped filter, and at least one frame of a signal obtained by frequency-converting an output signal of the image pickup tube by a first frequency conversion circuit. a first storage device capable of arbitrarily storing an information signal corresponding to a period; and at least a signal obtained by frequency-converting an image pickup tube output signal when an arbitrary specific color is imaged by a first frequency conversion circuit prior to imaging. means for storing an information signal corresponding to one frame period in the first storage device; and a second frequency conversion circuit converting the frequency of the information signal read from the first storage device to demodulate the color signal. and an index signal for generating an index signal indicating the scanning mode of the electron beam for at least one horizontal scanning period near the end of the photoelectric conversion section of the image pickup tube in the vertical scanning direction. A generation pattern is provided in the optical path up to the photoelectric conversion unit in the image pickup tube, and the index signal for one horizontal scanning period generated in correspondence with the above-mentioned index signal generation pattern when scanning the photoelectric conversion unit with the electron beam is generated. a second storage device that stores a signal obtained by frequency-converting a signal over one vertical scanning period by a third frequency conversion circuit; and a fourth frequency conversion circuit that converts the frequency of the signal read from the second storage device. The first and second signals
means for supplying the frequency conversion carrier wave to the frequency conversion circuit as a frequency conversion carrier wave, and a fifth frequency conversion circuit to which a signal obtained by multiplying the frequency conversion carrier wave of the third frequency conversion circuit is supplied as the frequency conversion carrier wave. , and means for supplying an input signal to the first frequency conversion circuit.