Endoscope system

An endoscope and internal synchronization technology, applied in the field of endoscope systems, can solve the problems of color separation reduction and other problems

Inactive Publication Date: 2015-07-15
OLYMPUS CORP
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Problems solved by technology

[0008] Therefore, for example, in narrow-band light observation using a configuration corresponding to a simultaneous imaging method, there is a problem in that the spectral characteristics of the illumination light irradiated on the subject and the color filter provided on the imaging surface of the imaging element may cause a problem. The combination of the spectral characteristics of each filter included in the filter causes a decrease in color separation
[0009] On the other hand, in Japanese Patent Laid-Open No. 2005-6974, there is no particular mention of methods for eliminating the reduction in the color separation property, that is, the problem of the reduction in the color separation property remains.

Method used

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Embodiment Construction

[0016] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0017] Figure 1 ~ Figure 3 Embodiments related to the present invention. figure 1 It is a figure showing the structure of the main part of the endoscope system of an Example.

[0018] Such as figure 1 As shown, an endoscope system 1 includes an endoscope 2 configured to have an elongated insertion portion capable of being inserted into a body cavity of a subject, and to detect a subject such as living tissue existing in the body cavity 101 takes an image to obtain an image; the light source device 3 is configured to supply illumination light to the subject 101 to the endoscope 2; the processor 4 is configured to generate and output the image obtained by the endoscope 2 a corresponding video signal; and a display device 5 configured to display an image corresponding to the video signal output from the processor 4 . Further, a light guide 6 configured to transmit lig...

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Abstract

An endoscope system comprises: a light source unit which generates first and second narrowband lights simultaneously or alternately; a color filter in which first and second filters having different spectral properties are arranged; an imaging element which receives light that passes through the first filter with a first pixel group, receives light that passes through the second filter with a second pixel group, and is capable of setting an exposure time and an electrical signal read time for each pixel; and a control unit which, when generating first and second narrowband lights alternately from the light source unit, synchronizes in a first period the generating time of the first narrowband light, the exposure time of the first pixel group, and the read time of the second pixel group and synchronizes in a second period the generating time of the second narrowband light, the exposure time of the second pixel group, and the read time of the first pixel group.

Description

technical field [0001] The present invention relates to an endoscope system, and more particularly to an endoscope system capable of narrow-band light observation. Background technique [0002] In the medical field, for example, surgery has conventionally been performed using devices such as endoscopes that are less invasive to the living body. In addition, as an observation method using an endoscope, for example, it is conventionally known to irradiate a subject in a living body with light of each color of R (red), G (green), and B (blue) to obtain an image approximately equivalent to that observed with the naked eye. Ordinary light observation of images of the same hue, and obtaining an image in which blood vessels, etc. existing in the mucous membrane surface of the living body are emphasized by irradiating the subject in the living body with light having a wavelength band narrower than the illumination light used for normal light observation Observation methods such as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B1/00A61B1/04A61B1/06G02B23/24
CPCH04N5/232A61B1/06H04N2005/2255G02B23/2469A61B1/00A61B1/04H04N5/2256H04N5/23245H04N23/56H04N23/555H04N23/60H04N23/667H04N25/134A61B1/00186A61B1/00006A61B1/045A61B1/0638A61B1/0655A61B1/0646A61B1/0002A61B1/0661
Inventor 朝鸟幸子
Owner OLYMPUS CORP
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