公开(公告)号：US12035892B2

公开(公告)日：2024-07-16

申请号：US16950372

申请日：2020-11-17

Applicant: OLYMPUS CORPORATION

Inventor： Satoshi Tanaka ,  Yoichiro Sakanoue ,  Noriko Kohira

IPC: A61B1/05 ,  A61B1/00 ,  A61B1/06 ,  H04N23/71 ,  H04N23/74

CPC classification number: A61B1/05 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/00045 ,  A61B1/0655 ,  A61B1/0684 ,  H04N23/71 ,  H04N23/74

Abstract: An endoscope system includes: a light source including one or more semiconductor light sources; an image pickup apparatus configured to pick up an image of the object irradiated with the illumination light to obtain the image; and a processor. The processor is configured to detect brightness of the image, to change one of a current value and an application period of a current applied to the semiconductor light source when the brightness of the image belongs to a first brightness range, to change the brightness of the image by predetermined processing, to which the image is subjected, when the brightness of the image belongs to a second brightness range, and to change the other of the current value and the application period of the current applied to the semiconductor light source when the brightness of the image belongs to a third brightness range.

公开(公告)号：US11337593B2

公开(公告)日：2022-05-24

申请号：US16130007

申请日：2018-09-13

Applicant: OLYMPUS CORPORATION

Inventor： Satoshi Tanaka ,  Yoichiro Sakanoue

IPC: A61B1/04 ,  H04N7/18 ,  A61B1/06 ,  A61B1/00 ,  G02B23/24 ,  G02B23/26

Abstract: An endoscope apparatus includes a light emitting element, an image pickup device of a rolling shutter scheme, and a control section. The control section performs control for switching between a first illumination mode for irradiating light on a subject in a readout period in which readout of an electric signal is performed in order for each of lines in the image pickup device and a second illumination mode for not irradiating light on the subject in the readout period. The control section controls the image pickup device to perform electronic shutter processing in all-line exposure period in which exposure of a plurality of lines is simultaneously performed in a frame corresponding to timing when one of the first illumination mode and the second illumination mode is switched to the other illumination mode.