Endoscope system using solid state imaging device

Details Endoscope system using solid state imaging device Endoscope system using solid state imaging device

1982-11-26

1986-01-07

Coven, Edward M.

Surgery

Truss

Perineal

358 98, A61B 106

Patent

active

045628319

ABSTRACT:
An endoscope system includes a solid state imaging device having an array of photosensitive cells for producing a video signal associated with an image of an object formed on the array, a color filter having filter segments of cyan and yellow disposed alternately in two-dimensional in association with the array, an illuminating unit for illuminating an object alternately with a first ray including green and a second ray including at least magenta, and a display unit for visualizing the video signal as a color image of the object. This system further includes a control circuit for synchronizing the imaging device with the illuminating unit so as to cause the imaging device to produce a first video signal including green and associated with a first field of a displayed picture while the illuminating unit illuminates the object with the first ray, and to alternately produce second and third video signals including at least red and blue, respectively, and associated with a second field of the displayed picture while the illuminating unit illuminates the object with the second ray, and a video circuit operative in response to the control circuit for forming the first field including green pixels from the first video signal, and forming the second field including red and blue video pixels disposed alternately from the second and third video signals, to cause thereby the fields to be displayed alternately on the display unit.

REFERENCES:
patent: 3527974 (1970-09-01), Cooper
patent: 3887279 (1975-06-01), Rubin
patent: 4170987 (1979-10-01), Anselmo et al.
patent: 4242703 (1980-12-01), Tsuboshima et al.
patent: 4245241 (1981-01-01), Sato et al.
patent: 4253447 (1981-03-01), Moore et al.
patent: 4343300 (1982-08-01), Hattori
patent: 4403247 (1983-09-01), Sone et al.
patent: 4404585 (1983-09-01), Hjortzberg

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