Title:
内視鏡システム及びその作動方法
Document Type and Number:
Japanese Patent JP7069290
Kind Code:
B2
Abstract:
Provided are an endoscopic system and an operation method therefor that, when light is emitted by switching among a plurality of illumination light beams, are capable of accurately controlling the light emission amount of an illumination light beam even in an illumination light beam switching period. A rolling shutter-type imaging sensor (48) outputs a switching-period image signal in a switching period during which switching is performed between a first illumination light beam and a second illumination light beam. By using the switching-period image signal, a first brightness calculation coefficient, and a second brightness calculation coefficient, a brightness information calculation unit (54) calculates switching-period brightness information that indicates brightness of a to-be-observed object in the switching period. On the basis of the switching-period brightness information, a light source control unit (21) controls the light emission amount of the first illumination light beam or the second illumination light beam.
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Inventors:
Masayuki Kuramoto
Application Number:
JP2020500445A
Publication Date:
May 17, 2022
Filing Date:
February 07, 2019
Export Citation:
Assignee:
FUJIFILM Corporation
International Classes:
A61B1/06; A61B1/00; G02B23/24
Domestic Patent References:
| JP2015037565A |
Foreign References:
| WO2010055938A1 | ||||
| WO2016035829A1 |
Attorney, Agent or Firm:
Kobayashi International Patent Office