The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 07, 2020
Filed:
Feb. 20, 2017
Hoya Corporation, Tokyo, JP;
Kunihiko Onobori, Tokyo, JP;
Masaaki Fukuda, Tokyo, JP;
HOYA CORPORATION, Tokyo, JP;
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.