Title:
内視鏡用光源装置及び内視鏡システム
Document Type and Number:
Japanese Patent JP6878647
Kind Code:
B2
Abstract:
An endoscope light source device is constituted by a first light source unit that emits light in a first wavelength band, a second light source unit that emits light in a second wavelength band, a light path combining means for combining the light paths of the light emitted from the first and second light source units, and a light source control means for controlling light emission of the light source units separately. When the light source units are driven to emit light in a first mode, the respective wavelength bands of light are emitted at a first intensity ratio and combined with each other to obtain normal light, which is supplied to an endoscope. Also, when the light source units are driven to emit light in a second mode, the respective wavelength bands of light are emitted at a second intensity ratio having a relatively lower ratio of the light in the second wavelength band, and are combined with each other to obtain special light that has a high light absorption rate in a specific biological tissue, and the special light is supplied to the endoscope.
Inventors:
Kunihiko Onobe
Fukuda Masaaki
Fukuda Masaaki
Application Number:
JP2020061716A
Publication Date:
May 26, 2021
Filing Date:
March 31, 2020
Export Citation:
Assignee:
HOYA CORPORATION
International Classes:
A61B1/06; A61B1/00
Domestic Patent References:
| JP2015054191A | ||||
| JP2013150713A | ||||
| JP2016000073A | ||||
| JP2015195844A |
Foreign References:
| US20150080653 | ||||
| CN104023618A | ||||
| US20150272422 |
Attorney, Agent or Firm:
Shuhei Matsuoka
Munetaka Yamaga
Munetaka Yamaga