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公开(公告)号：US20190150790A1
公开(公告)日：2019-05-23
申请号：US16098043
申请日：2017-07-21
Applicant: HOYA CORPORATION
Inventor： Shinya SHIMOTASHIRO , Shotaro KOBAYASHI , Yoshihiro HAYASHI
Abstract: An endoscope system includes: a light source that emits a first light; a rotating plate in which a first light transmitting region that allows the first light to pass therethrough, and a second light transmitting region that extracts a second light that is in at least one specific wavelength region from the first light, the first light transmitting region being configured to reduce a difference in amount between the first light that passes through the first light transmitting region and the second light extracted by the second light transmitting region; a rotation drive unit that inserts the first light transmitting region and the second light transmitting region one after the other into an optical path of the first light from the light source by rotating the rotating plate; a shift drive unit that shifts the rotating plate; and a control unit that controls the shift drive unit.
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公开(公告)号：US20250098950A1
公开(公告)日：2025-03-27
申请号：US18833571
申请日：2023-04-20
Applicant: HOYA CORPORATION
Inventor： Yoshihiro HAYASHI
Abstract: A processor for an endoscope, includes: an imaging signal acquisition unit that acquires an imaging signal from an image sensor; and a dimming unit that controls a light source that illuminates an observation visual field based on the imaging signal, in which the dimming unit includes: a luminance index acquisition unit that acquires, based on the imaging signal, a first index related to a luminance of a first color and a second index related to a luminance of a second color; a generation unit that generates a photometric signal based on the first index and the second index; and a dimming output unit that outputs a dimming signal to the light source based on the photometric signal.
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公开(公告)号：US20230301491A1
公开(公告)日：2023-09-28
申请号：US17768742
申请日：2020-09-25
Applicant: HOYA CORPORATION
Inventor： Yoshihiro HAYASHI , Takao MAKINO
IPC: A61B1/00 , A61B1/06 , A61B1/05 , A61B1/045 , H04N23/72 , H04N23/76 , H04N23/74 , G06T7/00 , H04N23/73 , H04N23/68
CPC classification number: A61B1/000095 , A61B1/00045 , A61B1/045 , A61B1/05 , A61B1/0655 , A61B1/0661 , G06T7/0012 , H04N23/6811 , H04N23/683 , H04N23/72 , H04N23/73 , H04N23/74 , H04N23/76 , G06T2207/10068 , G06T2207/30004 , G06T2207/30168
Abstract: An endoscope system includes: a light source device; an electronic endoscope including an image sensor that images a biological tissue by a rolling shutter method; and a processor including an adjustment unit that is a part adjusting luminance of the frame image by combining adjustment of an exposure time of the image sensor with at least one of adjustment of light intensity of the illumination light and gain adjustment for determining a signal level of the frame image obtained from the image sensor, the adjustment unit determining whether or not a motion amount of an object image in the captured image or information regarding a blurring amount satisfies an adjustment condition and performing the adjustment processing by adjusting an adjustment level representing a degree of strength of the adjustment processing by a magnitude of a value according to at least the determination result.
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公开(公告)号：US20180064319A1
公开(公告)日：2018-03-08
申请号：US15316721
申请日：2016-04-22
Applicant: HOYA CORPORATION
Inventor： Yoshihiro HAYASHI
CPC classification number: A61B1/0638 , A61B1/00009 , A61B1/00045 , A61B1/04 , A61B1/045 , A61B1/05 , A61B1/06 , A61B1/0646 , A61B1/0661 , G02B23/2469
Abstract: An electronic endoscope system including a light source unit alternately repeats irradiation and non-irradiation of illumination light while alternately switching illumination light to be irradiated between first and second illumination lights which is different from at least one of a light amount and a spectral property from the first illumination light; an image pickup device that captures a subject illuminated with the illumination light; and an image pickup device control that reads, during a non-irradiation period of the illumination light following an irradiation period of the illumination light, charges which have been accumulated in the image pickup device during the irradiation period, and wherein the irradiation period of the first illumination light and the second illumination light are set to have different lengths depending on at least one of a difference in light amount and a difference in spectral property between the first illumination light and the second illumination light.
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公开(公告)号：US20240268651A1
公开(公告)日：2024-08-15
申请号：US18567893
申请日：2022-07-27
Applicant: HOYA CORPORATION
Inventor： Yoshihiro HAYASHI
CPC classification number: A61B1/0655 , A61B1/00009 , A61B1/00045 , A61B1/0638 , A61B1/0684
Abstract: A light source device includes a plurality of semiconductor light emitting elements that emit pieces of light having different wavelength bands, and a control unit that controls a light emission profile of the plurality of semiconductor light emitting elements and drives the plurality of semiconductor light emitting elements, in which the control unit controls the light emission profile of the plurality of semiconductor light emitting elements such that main light emission is performed in a pseudo global exposure period of an image sensor and preliminary light emission is performed in at least a part of a pixel readout period of the image sensor, and a light emission level of the preliminary light emission is lower than a light emission level of the main light emission.
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Patent Agency Ranking
公开(公告)号：US20190142240A1
公开(公告)日：2019-05-16
申请号：US16300225
申请日：2017-08-25
Applicant: HOYA CORPORATION
Inventor： Yoshihiro HAYASHI
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 switching means for alternatingly switching the illuminating light to be emitted to the subject, between a first illuminating light and a second illuminating light; and an imaging element control means for controlling an exposure time of the imaging element and a charge readout timing. The imaging element control means 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.
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公开(公告)号：US20170000393A1
公开(公告)日：2017-01-05
申请号：US15118622
申请日：2016-02-08
Applicant: HOYA CORPORATION
Inventor： Yoshihiro HAYASHI , Yuuki IKEDA , Yuya MASUKAWA
IPC: A61B5/1455 , A61B1/06 , A61B1/00
CPC classification number: A61B5/14552 , A61B1/00009 , A61B1/00163 , A61B1/045 , A61B1/06 , A61B1/0638 , A61B1/0646 , A61B1/0661
Abstract: A light source device is configured to have a light source configured to emit white light, a rotatable turret provided with multiple kinds of predetermined light passing areas respectively extract light components having different wavelength ranges from the white light incident from the light source, the multiple kinds of predetermined light passing areas being arranged in a circumferential direction of the rotatable turret, and white light passing areas each allowing the white light to pass therethrough being arranged in the circumferential direction of the rotatable turret and between the predetermined wavelength light passing areas, and a driving means configured rotate the rotatable turret so that the multiple kinds of predetermined wavelength light passing areas and the white light passing areas are alternately inserted into a light path of the white light one by one at a timing which is synchronized with a predetermined photographing period.
Abstract translation: 光源装置被配置为具有被配置为发射白光的光源，设置有多种预定光通过区域的可旋转转台分别从从光源入射的白光提取具有不同波长范围的光分量，多种 在可旋转转台的圆周方向上布置预定的光通过区域，并且允许白光穿过的白色光通过区域沿着可旋转转盘的圆周方向布置在预定波长的光通过区域之间，并且 驱动装置构造为使可旋转转盘旋转，使得多种预定波长的光通过区域和白色光通过区域在与预定拍摄周期同步的定时逐个地交替插入到白光的光路中。
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公开(公告)号：US20230319386A1
公开(公告)日：2023-10-05
申请号：US18024578
申请日：2021-09-22
Applicant: HOYA CORPORATION
Inventor： Yoshihiro HAYASHI , Yoshiyuki NIIJIMA , Yukari AKINO , Shinya SHIMOTASHIRO
CPC classification number: H04N23/555 , H04N23/73 , H04N23/56
Abstract: A light source device that generates illumination light, the light source device including: a plurality of semiconductor light emitting elements that emit light beams having different wavelength bands; and a control unit that controls a light emission profile of the plurality of semiconductor light emitting elements and drives the plurality of semiconductor light emitting elements, in which the light emission profile includes a strong light emission period in which light emission is performed with a predetermined light intensity and a weak light emission period in which light emission is performed with a light intensity weaker than the predetermined light intensity, and the control unit executes a restoration control process of converting into a light emission amount in the strong light emission period while maintaining a total amount of the light emission amount in the strong light emission period and the light emission amount in the weak light emission period constant.
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公开(公告)号：US20230363630A1
公开(公告)日：2023-11-16
申请号：US18029738
申请日：2021-11-04
Applicant: HOYA CORPORATION
Inventor： Yoshihiro HAYASHI , Yoshiyuki NIIJIMA , Yukari AKINO , Shinya SHIMOTASHIRO
CPC classification number: A61B1/0684 , A61B1/0655 , A61B1/00009 , A61B1/0638 , A61B1/0676 , A61B1/00045
Abstract: A light source device according to the present disclosure is a light source device that generates illumination light with which an object is to be irradiated, the light source device including: a plurality of semiconductor light emitting elements configured to emit light having different wavelength bands; and a control unit configured to control a light emission profile of the plurality of semiconductor light emitting elements and drive the plurality of semiconductor light emitting elements, in which the control unit extends the light emission profile in a first direction that is a direction opposite to a direction in which time progresses in a case of increasing an exposure level and shortens the light emission profile from a second direction that is the direction in which time progresses in a case of decreasing the exposure level.
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公开(公告)号：US20230089085A1
公开(公告)日：2023-03-23
申请号：US17795011
申请日：2021-07-28
Applicant: HOYA CORPORATION
Inventor： Yoshiyuki NIIJIMA , Yoshihiro HAYASHI , Yukari AKINO , Shinya SHIMOTASHIRO
Abstract: A light amount control unit of an endoscope derives a photometric value in an area of an observation spot corresponding to each of angular ranges of a first light output unit and a second light output unit having different wavelength ranges based on imaging data about the observation spot output from an imaging unit, derives an amount of light from each of the first light output unit and the second light output unit based on the derived photometric value, and causes each of the first light output unit and the second light output unit to output illumination light based on the derived amount of light.
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