JP2012217483A5 - - Google Patents

Claims (10)

An electronic endoscope in which a solid-state imaging device that irradiates illumination light to the subject from the tip and receives light from the subject is mounted on the tip;
A light source device that includes a plurality of light sources, introduces light emitted from the light sources into the electronic endoscope, and irradiates the subject with the light emitted as the illumination light;
When any one of the plurality of light sources is extinguished due to a failure, the illumination light of a normal light source is replaced with the illumination light of the normal light source instead of the light source related to the failure, and the light source related to the failure is in a normal state. When the illumination light and the illumination light of the substituted light source are different, the image processing of the captured image signal output from the solid-state imaging device is switched to change the color change of the captured image after the image processing before and after the substitution. An endoscopic system comprising a control means for suppressing.   The endoscope system according to claim 1, wherein at least one of a light amount and a light emission wavelength of the illumination light of the light source in the normal state and the illumination light of the substituted light source is different, An endoscope system for switching the image processing.   The endoscope system according to claim 1 or 2, wherein when the failure occurs, the endoscope system displays a warning on a monitor screen that displays a captured image of the solid-state imaging device.   The endoscope system according to any one of claims 1 to 3, wherein the light source includes at least two semiconductor light emitting elements that emit light in a first wavelength region and light in a second wavelength region. An endoscope including at least one semiconductor light emitting element that emits light, and a phosphor that receives light emitted from the semiconductor light emitting element and emits yellow fluorescent light at the distal end portion of the electronic endoscope. system. 5. The endoscope system according to claim 4, wherein any one of a plurality of light sources that emit light in the first wavelength band fails and at least one of the plurality of light sources is normal. Light emission of a light source that emits light in the second wavelength range when all of the plurality of light sources that emit light in the first wavelength range fail, continuously acquiring the captured image from the solid-state imaging device. An endoscope system that displays on a monitor screen a warning display that instructs removal of the electronic endoscope from a body cavity using light as illumination light. An electronic endoscope in which a solid-state imaging device that irradiates illumination light to the subject from the tip and receives light from the subject is mounted on the tip;
A driving method of an endoscope system, comprising: a plurality of light sources; a light source device that introduces light emitted from the light sources into the electronic endoscope and irradiates the subject with the light emitted as the illumination light. Because
When any one of the plurality of light sources is extinguished due to a failure, the illumination light of a normal light source is replaced with the illumination light of the normal light source instead of the light source related to the failure, and the light source related to the failure is in a normal state. When the illumination light and the illumination light of the substituted light source are different, the image processing of the captured image signal output from the solid-state imaging device is switched to change the color change of the captured image after the image processing before and after the substitution. A driving method for an endoscope system, characterized by comprising:   7. The driving method of an endoscope system according to claim 6, wherein at least one of a light quantity and a light emission wavelength of illumination light when the light source affected by the failure is normal and illumination light of the alternative light source is selected. An endoscope system driving method for switching the image processing when different.   The driving method of the endoscope system according to claim 6 or 7, wherein a warning is displayed on a monitor screen that displays a captured image of the solid-state imaging device when the failure occurs. Method.   9. The driving method of the endoscope system according to claim 6, wherein the light source includes at least two semiconductor light emitting elements that emit light in a first wavelength range and a second wavelength range. 10. And at least one semiconductor light emitting element that emits the light of the above-mentioned type, and a phosphor that receives the light emitted from the semiconductor light emitting element and emits yellow fluorescent light is built in the tip portion of the electronic endoscope. Driving method of endoscope system. The method for driving an endoscope system according to claim 9, wherein one of a plurality of light sources that emit light in the first wavelength band has failed and at least one of the plurality of light sources is normal. Continuously acquires the captured image from the solid-state imaging device even after the failure, and emits light in the second wavelength region when all of the plurality of light sources emitting light in the first wavelength region fail A driving method of an endoscope system, wherein a warning display instructing removal of the electronic endoscope from a body cavity is displayed on a monitor screen using emitted light of a light source as illumination light.