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公开(公告)号：US10939811B2
公开(公告)日：2021-03-09
申请号：US15951238
申请日：2018-04-12
Applicant: OLYMPUS CORPORATION
Inventor： Yusuke Yabe , Satoshi Tanaka , Tomoya Takahashi , Masaaki Watanabe , Susumu Hashimoto , Yasuo Komatsu , Manabu Yajima , Akihiko Mochida , Koji Omori
Abstract: A light source device for endoscope includes a rotational body configured to rotate with a rotational axis as a center; a fluorescent body arranged in a predetermined area of the rotational body and configured to generate fluorescence by excitation light being radiated; an illuminating portion capable of selectively radiating excitation light of a first quantity and excitation light of a second quantity which is larger than the first quantity to a fluorescent body; and a control portion configured to switch between a first state of radiating the excitation light of the first quantity to the fluorescent body arranged in a first area and a second state of radiating the excitation light of the second quantity to the fluorescent body arranged in a second area.
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公开(公告)号：US10225446B2
公开(公告)日：2019-03-05
申请号：US15368580
申请日：2016-12-03
Applicant: OLYMPUS CORPORATION
Inventor： Aiko Sakai , Yusuke Yabe , Tomoya Takahashi , Satoshi Tanaka , Kotaro Ogasawara , Susumu Hashimoto
Abstract: An image pickup system includes an optical sensor configured to pick up an optical image of an object illuminated with light of a plurality of colors emitted from a plurality of semiconductor light emitting elements with an image pickup device and detect each of light amounts of the light emitted from the plurality of semiconductor light emitting elements, and a controller including hardware. The controller adjusts color balance based on the light amounts of the plurality of colors detected at the optical sensor and sets an exposure timing of a light amount detecting unit according to image pickup operation of the image pickup device.
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公开(公告)号：US10524646B2
公开(公告)日：2020-01-07
申请号：US15478328
申请日：2017-04-04
Applicant: OLYMPUS CORPORATION
Inventor： Aiko Sakai , Yusuke Yabe , Tomoya Takahashi , Kazue Hongo
Abstract: A light source apparatus includes: a light source; a light source driving section; a light detection section; a temperature detection section; and a control section being configured to, when determining that detected brightness is outside a range of brightness set for detecting abnormality in the light source or the light detection section and detected temperature is within a range of temperature set for detecting the abnormality in the light source or the light detection section, cause the light source driving section to perform driving of the light source for a case of abnormality in the light detection section, and when determining that the detected brightness is outside the range of brightness and the detected temperature is outside the range of temperature, cause the light source driving section to perform driving of the light source for a case of abnormality in the light source.
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公开(公告)号：US10219342B2
公开(公告)日：2019-02-26
申请号：US15383131
申请日：2016-12-19
Applicant: OLYMPUS CORPORATION
Inventor： Aiko Sakai , Yusuke Yabe , Tomoya Takahashi
Abstract: A light source device includes a semiconductor light source, a light source control section, an optical sensor, a sensor control section, and an intensity adjusting section. The light source control section controls a light quantity per field of light to be emitted from the semiconductor light source, by pulse width modulation. The optical sensor receives the light emitted from the semiconductor light source to acquire a quantity of the received light. The sensor control section controls the optical sensor to detect the light in an exposure period shorter than a minimum pulse width in the pulse width modulation, thereby acquiring the quantity of the received light which is acquired by the optical sensor. The intensity adjusting section adjusts emission intensity of the semiconductor light source on the basis of the quantity of the received light.
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公开(公告)号：US10085630B2
公开(公告)日：2018-10-02
申请号：US15142507
申请日：2016-04-29
Applicant: OLYMPUS CORPORATION
Inventor： Yutaka Shirota , Tomoya Takahashi , Masato Toda , Yusuke Yabe , Yusuke Yoshida , Aiko Sakai , Takahiro Masaki , Takahiro Hayama , Ryo Machida , Koji Omori
Abstract: An endoscope apparatus includes: first and second cooling units configured to cool first and second light source portions; an image pickup portion configured to generate a picked-up image; and a cooling control portion configured to control amounts of light emission of the light source portions while maintaining an amount-of-light ratio so that the brightness of the picked-up image becomes the target brightness and control cooling based on the information about the amount-of-light ratio and the brightness control information; wherein the cooling control portion decides a cooling capacity of the first cooling units and a cooling capacity of the second cooling units for cooling the respective light source portions for which the amounts of light emission are controlled, at the cooling ratio, so as to cause the light source portions to be included within a predetermined temperature range, based on the brightness control information.
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Patent Agency Ranking
公开(公告)号：US09826894B2
公开(公告)日：2017-11-28
申请号：US15011882
申请日：2016-02-01
Applicant: OLYMPUS CORPORATION
Inventor： Takahiro Masaki , Yusuke Yabe , Tomoya Takahashi , Masato Toda , Yutaka Shirota , Daisuke Akiyama , Koji Omori
CPC classification number: A61B1/0684 , A61B1/00009 , A61B1/04 , A61B1/0638 , A61B1/0669 , G02B23/2461 , G02B27/1006
Abstract: An endoscope system including a control section that controls an LED driving section to supply driving currents to LEDs of a plurality of colors to cause the LEDs to emit lights in a frame-sequential manner and a processor that divides a total exposure period in one frame period of the frame-sequential light emission into ratios of light emission periods for each of the respective colors obtained by dividing light amount ratios of the lights of the plurality of colors, which should be received in a CCD, respectively by respective maximum light emission intensities of the LEDs of the plurality of colors and sets respective maximum light emission periods of the LEDs of the plurality of colors.
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公开(公告)号：US11744436B2
公开(公告)日：2023-09-05
申请号：US16930859
申请日：2020-07-16
Applicant: OLYMPUS CORPORATION
Inventor： Yusuke Yabe
CPC classification number: A61B1/00006 , A61B1/00009 , A61B1/045 , A61B1/0655 , H04N23/74 , H04N23/741 , H04N23/555
Abstract: A subject observation system includes a light source, a light sensor, an image pickup device, a light source controller configured to cause the light source to alternately perform low-luminance illumination and high-luminance illumination at a predetermined luminance ratio, and a video processor configured to generate an HDR image, and sets a target sensor value S(n) in a temporarily succeeding n frame based on a sensor value S(n−1) in a temporarily preceding (n−1) frame and the luminance ratio.
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8.发明授权公开(公告)号：US10779716B2
公开(公告)日：2020-09-22
申请号：US16663612
申请日：2019-10-25
Applicant: OLYMPUS CORPORATION
Inventor： Yusuke Yabe , Shuhei Hatanaka
Abstract: A light source system includes a normal light source apparatus provided with a light source controller and a light source apparatus for specific light provided with a specific light controller. In a state where communication is enabled, the light source controller adjusts an emission intensity of the normal light, generates a light amount control signal that makes the normal light and the specific light have a predetermined light amount ratio, and sends the light amount control signal to the light source apparatus for specific light. The specific light controller adjusts an emission intensity of the specific light based on the received light amount control signal.
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公开(公告)号：US10314468B2
公开(公告)日：2019-06-11
申请号：US15614751
申请日：2017-06-06
Applicant: OLYMPUS CORPORATION
Inventor： Yusuke Yabe , Hiroyuki Kamee , Takeshi Ito
Abstract: A light source apparatus, capable of supplying white light including a predetermined wavelength band and a special light, which is light including the predetermined wavelength band and narrower in a band than the white light, includes: a first light source configured to emit light in a first wavelength band including the predetermined wavelength band, a second light source configured to emit light in a second wavelength band including the predetermined wavelength band, and a dichroic mirror configured to selectively transmit light in the predetermined wavelength band from one light of the lights in the first and second wavelength bands, selectively reflect light in a third wavelength band other than the predetermined wavelength band from the other light of the lights in the first and second wavelength bands, and mix and emit the light in the predetermined wavelength band and the light in the third wavelength band.
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公开(公告)号：US09766447B2
公开(公告)日：2017-09-19
申请号：US15196756
申请日：2016-06-29
Applicant: OLYMPUS CORPORATION
Inventor： Aiko Sakai , Ryo Machida , Yusuke Yabe , Tomoya Takahashi
CPC classification number: G02B23/2461 , A61B1/0638 , A61B1/0684 , A61B1/07 , G01J1/0418 , G01J1/0425 , G01J1/0437 , G01J1/0488 , G02B23/2469 , G02B27/141 , H05B33/0803 , H05B33/0848 , H05B33/0869
Abstract: A light source apparatus includes first and second light sources having different maximum light amounts used, a first light amount detection section detecting a light amount of first light of the first light source, a second light amount detection section detecting a light amount of second light of the second light source, a light amount limiting section limiting a light amount of light incident upon the second light amount detection section so that light amounts detected in the first light amount detection section and the second light amount detection section match a predetermined value within a detection range when light with the maximum light amounts used are emitted from the first light source and the second light source, and a control section controlling amounts of light emission of the first light source and the second light source based on detection results of the first and second light amount detection sections.
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