Back to results
US 10,299,666 B2Granted
Endoscope system
AssigneeFUJIFILM Corporation
InventorMakoto Kagaya
Life of this patent
Estimating the term…
Abstract
An endoscope system is provided by which observation image brightness can be suppressed from irregularly fluctuating before and after changing of an observation mode and observer's discomfort feeling can be reduced. The endoscope system includes an imaging element, an image processing section that generates an observation image from an imaging signal, a display section that displays the observation image, an illumination mode changing section that changes illumination modes of a light source device, an image processing mode changing section that changes an image processing mode, and a light source control section that controls the light source device.
Claims20
An endoscope system comprising:
- an imager configured to image an observed region;
- an image processor configured to generate an observation image of the observed region from an imaging signal obtained by the imager;
- a light source configured to selectively switch a kind of illumination light between a white light and a special light having a wavelength narrower than the white light, and apply the illumination light to the observed region;
- an illumination mode change controller configured to change the kind of illumination light applied from the light source;
- and
- a light source controller configured to control a light amount of the illumination light emitted from the light source,
- wherein when the kind of illumination light is switched from the white light to the special light by the illumination mode change controller, the light source controller adjusts a light amount of the special light to be larger than a light amount of the white light, and suppresses a fluctuation in brightness between an observation image obtained when the white light is used and an observation image obtained when the special light is used, compared to a case where the light amount of the special light is not adjusted.
4 more elements
An endoscope system comprising:
- an imager configured to image an observed region;
- an image processor configured to generate an observation image of the observed region from an imaging signal obtained by the imager;
- a light source configured to selectively switch a kind of illumination light between a white light and a special light having a wavelength narrower than the white light, and apply the illumination light to the observed region;
- an illumination mode change controller configured to change the kind of illumination light applied from the light source;
- and
- a light source controller configured to control a light amount of the illumination light emitted from the light source,
- wherein when the kind of illumination light is switched from the special light to the white light by the illumination mode change controller, the light source controller adjusts a light amount of the white light to be smaller than a light amount of the special light, and suppresses a fluctuation in brightness between an observation image obtained when the special light is used and an observation image obtained when the white light is used, compared to a case where the light amount of the white light is not adjusted.
4 more elements
An endoscope system comprising:
- an imager configured to image an observed region;
- an image processor configured to generate an observation image of the observed region from an imaging signal obtained by the imager;
- a plurality of light sources configured to emit laser lights having wavelengths different from each other;
- an illumination mode change controller configured to change a kind of illumination light to be used for illuminating the observed region;
- and
- a light source controller configured to control a light amount of the illumination light to be emitted from the plurality of light sources,
- wherein when the illumination light is switched from a white light to a special light having a wavelength narrower than the white light based on an illumination light changing instruction at a first timing, the light source controller:
- generates the special light by changing a light amount ratio between the laser lights emitted from the plurality of light sources,
- before emitting the special light, adjusts light amounts of the laser lights to set the special light having a light amount which is larger than a light amount of the white light at the first timing, and
- emits the special light having the set light amount to illuminate the observed region, thereby suppressing a fluctuation in brightness between an observation image which has been obtained by the white light at the first timing and an observation image which is to be obtained by the special light having the set light amount, compared to a case where the observed image is illuminated with the special light having a light amount which is the same as the light amount of the white light at the first timing.
7 more elements
An endoscope system comprising:
- an imager configured to image an observed region;
- an image processor configured to generate an observation image of the observed region from an imaging signal obtained by the imager;
- a plurality of light sources configured to emit laser lights having wavelengths different from each other;
- an illumination mode change controller configured to change a kind of illumination light to be used for illuminating the observed region;
- and
- a light source controller configured to control a light amount of the illumination light to be emitted from the plurality of light sources,
- wherein when the illumination light is switched to a white light from a special light having a wavelength narrower than the white light based on an illumination light changing instruction at a first timing, the light source controller:
- generates the white light by changing a light amount ratio between the laser lights emitted from the plurality of light sources,
- before emitting the white light, adjusts light amounts of the laser lights to set the white light having a light amount which is smaller than a light amount of the special light at the first timing, and
- emits the white light having the set light amount to illuminate the observed region, thereby suppressing a fluctuation in brightness between an observation image which has been obtained by the special light at the first timing and an observation image which is to be obtained by the white light having the set light amount, compared to a case where the observed image is illuminated with the white light having a light amount which is the same as the light amount of the special light at the first timing.
7 more elements
Dependencies are inferred from the claim text.