Endoscope system using solid state imaging device
US4562831A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Nov 26, 1982 |
| Grant date | Jan 7, 1986 |
| Priority date | — |
| Expiry date | Nov 26, 2002 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/555
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
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 gre…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.