Title:
電子内視鏡用プロセッサ及び電子内視鏡システム
Document Type and Number:
Japanese Patent JP6797925
Kind Code:
B2
Abstract:
An electronic endoscope processor for processing an image signal of a subject imaged using an imaging element in an electronic endoscope system includes: an illuminating light switch that alternatingly switches the illuminating light to be emitted to the subject, between a first illuminating light and a second illuminating light; and an imaging element control circuit that controls an exposure time of the imaging element and a charge readout timing. The imaging element control circuit controls the exposure time T1 of the imaging element when the first illuminating light is being emitted to the subject and the exposure time T2 of the imaging element when the second illuminating light is being emitted to the subject, based on a time-integrated amount of luminous flux per unit time of the first illuminating light and a time-integrated amount of luminous flux per unit time of the second illuminating light.
Inventors:
Yoshihiro Hayashi
Application Number:
JP2018535793A
Publication Date:
December 09, 2020
Filing Date:
August 25, 2017
Export Citation:
Assignee:
HOYA CORPORATION
International Classes:
A61B1/045; A61B1/06; G02B23/24; G02B23/26
Domestic Patent References:
| JP2005033282A | ||||
| JP2005006768A | ||||
| JP2005131129A | ||||
| JP2016123755A | ||||
| JP2015066063A |
Foreign References:
| WO2013146311A1 | ||||
| WO2016056388A1 | ||||
| WO2010131620A1 |
Attorney, Agent or Firm:
Global IP Tokyo Patent Business Corporation