Search International and National Patent Collections

1. (WO2018043293) ELECTRONIC SCOPE AND ELECTRONIC ENDOSCOPE SYSTEM

Pub. No.:    WO/2018/043293    International Application No.:    PCT/JP2017/030383
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Fri Aug 25 01:59:59 CEST 2017
IPC: A61B 1/00
A61B 1/07
G02B 23/24
G02B 23/26
Applicants: HOYA CORPORATION
HOYA株式会社
Inventors: ONOBORI, Kunihiko
尾登 邦彦
Title: ELECTRONIC SCOPE AND ELECTRONIC ENDOSCOPE SYSTEM
Abstract:
This electronic scope that is able to prevent reduction of light quantity of light in a desired wavelength band is provided with: an insertion tube which is configured to be inserted into a body cavity, and which is equipped with a light-emitting port at a leading end thereof; a light guide which is configured to guide a first light ray up to the leading end of the insertion tube for emission therefrom; and a light-emitting element which is configured to emit, from the leading end, a second light ray of a wavelength band having a lower light transmittance at the light guide than that of the wavelength band of the first light ray. The second light ray traveling from the light-emitting element to the second light ray emission port disposed at the leading end has an optical path length shorter than that of the first light ray in the light guide.