JP2009297290A5

JP2009297290A5 -

Info

Publication number: JP2009297290A5
Application number: JP2008155597A
Authority: JP
Filing date: 2008-06-13
Publication date: 2011-03-03

Claims

A first light source that emits laser light; an optical fiber that transmits the laser light to a light incident side and transmits it to the distal end of an endoscope insertion portion; A wavelength conversion member including one type of fluorescent material, and mixing the laser light and excitation light emitted from the wavelength conversion member to emit white light from the distal end of the endoscope insertion portion Illumination optics,
A second illumination optical system comprising a light emitting element that is an LED element that is arranged at the distal end of the endoscope insertion portion and emits light in a specific visible wavelength band;
An endoscope apparatus comprising:

The endoscope apparatus according to claim 1 ,
An endoscope apparatus in which the second illumination optical system includes a plurality of light emitting elements that emit light at different center wavelengths.

The endoscope apparatus according to claim 1 or 2 ,
An endoscope apparatus in which the second illumination optical system includes a light emitting element that emits at least blue light .

The endoscope apparatus according to any one of claims 1 to 3 ,
An endoscope apparatus in which the second illumination optical system includes a light emitting element that emits at least green light .

The endoscope apparatus according to any one of claims 1 to 4 ,
An endoscope apparatus in which the second illumination optical system includes a light emitting element that emits at least red light or infrared light.

The endoscope apparatus according to any one of claims 1 to 5 ,
An imaging means including an imaging element that receives light from a site to be observed through an observation window provided at a distal end of the endoscope insertion unit and outputs an imaging signal;
Illumination light control means for switching and illuminating white light by the first illumination optical system and light of a specific visible wavelength band by the second illumination optical system;
An endoscopic apparatus comprising:

The endoscope apparatus according to claim 6 , wherein
A first memory for storing an imaging signal imaged under illumination light of white light by the first illumination optical system;
A second memory for storing an imaging signal imaged under illumination light including light of the specific visible wavelength band by the second illumination optical system;
Picked-up image display means for displaying the picked-up image signals stored in the first memory and the second memory in different display areas;
An endoscopic apparatus comprising:

The endoscope apparatus according to claim 7 ,
The endoscope apparatus characterized in that the illumination light control means alternately switches the illumination of the white light and the illumination including the light in the specific visible wavelength band for each imaging frame by the imaging element.

The endoscope apparatus according to any one of claims 6 to 8 , comprising:
The image sensor includes a color filter for detecting a specific detection color component;
The half width of the peak of the emission spectrum curve of the specific visible wavelength band emitted by the light emitting element is narrower than the half width of the peak of the spectral sensitivity curve of the wavelength band of the color filter for detecting the specific detection color. Endoscopic device.