公开(公告)号：US10531008B2

公开(公告)日：2020-01-07

申请号：US15478616

申请日：2017-04-04

Applicant: OLYMPUS CORPORATION

Inventor： Yusuke Yabe ,  Tomoya Takahashi ,  Satoshi Tanaka

IPC: H04N5/235 ,  A61B1/00 ,  A61B1/05 ,  A61B1/06 ,  H04N5/225 ,  H04N5/378 ,  H04N9/04

Abstract: An image pickup system includes a light source apparatus and a light-source control section performing first control for setting a duty width and perform second control for, after the duty width is set to a minimum duty width by the first control, changing supply timing of the illumination light not to supply the illumination light in a period other than the period where the light amount control by the PWM is permitted and to supply, in the period where the light amount control by the PWM is permitted, light having a light amount integrated value equal to a light amount integrated value supplied in the period other than the period where the light amount control by the PWM is permitted, and an image pickup apparatus, where data representing a driving current value after the change of the supply timing and a value of the pulse width is stored.

公开(公告)号：US10390688B2

公开(公告)日：2019-08-27

申请号：US15474172

申请日：2017-03-30

Applicant: OLYMPUS CORPORATION

Inventor： Masakazu Mizoguchi ,  Satoshi Tanaka

IPC: A61B1/045 ,  G01B11/00 ,  G03B35/10 ,  H04N13/254 ,  H04N13/289 ,  A61B1/00 ,  A61B1/06 ,  G01J1/42 ,  G02B23/24 ,  H04N5/235 ,  H04N5/238 ,  G03B7/17 ,  H04N13/296 ,  H04N13/239 ,  G03B37/00 ,  H04N5/225

Abstract: An image pickup system includes a stereoscopic endoscope including image pickup optical systems having a parallax therebetween and a first image pickup device and a second image pickup device, and a processor including a first photometric measurement section configured to photometrically measure a luminance value of a first image pickup signal related to the first image pickup device, a second photometric measurement section configured to measure a luminance value of a second image pickup signal related to the second image pickup device, and a control section including a threshold value comparison section configured to compare the luminance value with a threshold value. When the luminance value of either one of the first image pickup signal and the second image pickup signal exceeds the threshold value, the image pickup system performs light adjustment control of a light source based on a photometric value of the other image pickup signal.

公开(公告)号：US10085611B2

公开(公告)日：2018-10-02

申请号：US14919849

申请日：2015-10-22

Applicant: OLYMPUS CORPORATION

Inventor： Yusuke Yabe ,  Tomoya Takahashi ,  Kotaro Ogasawara ,  Satoshi Tanaka ,  Aiko Sakai

IPC: A61B1/06 ,  A61B1/00 ,  A61B1/045 ,  G02B23/24 ,  G02B27/14 ,  G02B19/00

Abstract: A light source apparatus includes: a control section that acquires information relating to a ratio of a light amount value for light with second wavelength band to a light amount value for light with first wavelength band, obtains a light amount value for the light with the first wavelength band so that an observation image has a predetermined brightness, and, from the information relating to the ratio, determines a light amount value for the light with the second wavelength band, and generates light adjustment information for making first and second semiconductor light sources emit light with the light amount value for the light with the first wavelength band and the light amount value for the light with the second wavelength band; and a drive section that, based on the light adjustment information generated by the control section, drives the first and second semiconductor light sources.

公开(公告)号：US09838610B2

公开(公告)日：2017-12-05

申请号：US15618505

申请日：2017-06-09

Applicant: OLYMPUS CORPORATION

Inventor： Aiko Sakai ,  Satoshi Tanaka

IPC: A61B1/00 ,  H04N5/235 ,  H04N5/225 ,  A61B1/045 ,  A61B1/06 ,  A61B5/00 ,  A61B1/07 ,  G02B23/24

CPC classification number: H04N5/2353 ,  A61B1/00 ,  A61B1/00006 ,  A61B1/00009 ,  A61B1/04 ,  A61B1/045 ,  A61B1/06 ,  A61B1/0638 ,  A61B1/0669 ,  A61B1/07 ,  A61B5/0086 ,  G02B23/24 ,  G03B7/093 ,  G03B15/03 ,  H04N5/2256 ,  H04N5/23245 ,  H04N5/2354 ,  H04N5/33 ,  H04N2005/2255

Abstract: An imaging system includes: an imaging device including an image sensor provided with an electronic shutter function, the imaging device being configured to capture a subject; a light source configured to emit illumination light for illuminating the subject; an identification unit configured to identify which one of a first light source and a second light source configured to emit light having a wavelength bandwidth different from a wavelength bandwidth of the first light source is employed as the light source used for observation; an electronic shutter controller configured to control the electronic shutter function of the image sensor based on a control pattern according to the classification of the light source identified by the identification unit; and an electronic shutter control pattern setting unit configured to set a control pattern of the electronic shutter function in accordance with the classification of the light source identified by the identification unit.