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    ILLUMINATION OPTICAL SYSTEM FOR ENDOSCOPE
    1.
    发明申请
    ILLUMINATION OPTICAL SYSTEM FOR ENDOSCOPE 有权

    公开(公告)号：US20220171178A1

    公开(公告)日：2022-06-02

    申请号：US17670679

    申请日：2022-02-14

    Applicant: FUJIFILM Corporation

    Inventor： Yoshinori MORIMOTO

    IPC: G02B23/24 ,  F21V8/00 ,  A61B1/07

    Abstract: Provided is an illumination optical system for endoscope having high light utilization efficiency. The illumination optical system for endoscope which is provided in contact with an end surface of a light guide at a distal end portion of an insertion part of an endoscope, includes a diffusion plate that is provided on the end surface of the light guide and that diffuses light from the light guide, in which the diffusion plate has a diffusion surface that is formed on a surface on a side of the light guide and a light guide unit that guides light diffused on the diffusion surface, the diffusion surface consists of a holographic diffusion plate, and the light guide unit consists of sapphire glass.

    LIGHT SOURCE DEVICE FOR ENDOSCOPE AND ENDOSCOPE SYSTEM
    2.
    发明申请
    LIGHT SOURCE DEVICE FOR ENDOSCOPE AND ENDOSCOPE SYSTEM 审中-公开
    内镜和内窥镜系统的光源装置

    公开(公告)号：US20160058348A1

    公开(公告)日：2016-03-03

    申请号：US14839131

    申请日：2015-08-28

    Applicant: FUJIFILM Corporation

    Inventor： Yoshinori MORIMOTO ,  Satoshi OZAWA

    IPC: A61B5/1455 ,  F21V23/00 ,  A61B1/06 ,  A61B1/00 ,  A61B1/005 ,  A61B5/1459 ,  F21V33/00 ,  F21V9/08

    CPC classification number: A61B5/14552 ,  A61B1/00165 ,  A61B1/0638 ,  A61B1/0669 ,  A61B5/0031 ,  A61B5/073 ,  A61B5/1459 ,  A61B5/6861 ,  A61B2505/05 ,  A61B2562/162

    Abstract: A band limiter comprises an optical filter, which has first and second filter sections, and a filter moving mechanism for moving the optical filter to place the first or second filter section in a light path of blue light. A passband where transmittance of the first filter section is greater than or equal to half a peak value thereof is defined as a first transmission band. The first transmission band includes a peak wavelength, at which an absorption coefficient of hemoglobin is at its peak. A passband where transmittance of the second filter section is greater than or equal to half a peak value thereof is defined as a second transmission band. The second transmission band does not include an isosbestic wavelength (in the order of 450 nm), at which an absorption coefficient of oxyhemoglobin equals or crosses an absorption coefficient of deoxyhemoglobin.

    Abstract translation: 带限制器包括具有第一和第二滤波器部分的滤光器和用于移动滤光器以将第一或第二滤光器部分放置在蓝光的光路中的滤光器移动机构。 将第一滤波器部分的透射率大于或等于其峰值的一半的通带定义为第一传输带。 第一透射带包括血红蛋白的吸收系数处于峰值的峰值波长。 第二滤波器部分的透射率大于或等于其峰值的一半的通带被定义为第二传输带。 第二透射带不包括氧合血红蛋白的吸收系数等于或穿过脱氧血红蛋白的吸收系数的等腰波长（约450nm）。

    ENDOSCOPE
    4.
    发明申请
    ENDOSCOPE 审中-公开

    公开(公告)号：US20200060534A1

    公开(公告)日：2020-02-27

    申请号：US16510988

    申请日：2019-07-15

    Applicant: FUJIFILM Corporation

    Inventor： Hiroaki TABE ,  Yoshinori MORIMOTO

    IPC: A61B1/07

    Abstract: There are provided an endoscope that has sufficient air-tightness and excellent durability and an endoscope in which a reduction in the amount of light is suppressed.An endoscope includes: a light guide that emits incident light from an end portion thereof; a distal end member that is provided at the end portion of the light guide, has a function to propagate the light emitted from the light guide by total reflection, and propagates the light emitted from the light guide and emits the light from a distal end face thereof; and an imaging unit that uses the light emitted from the distal end member to image an object to be observed. The distal end member includes a light guide member made of glass.

    ENDOSCOPE SYSTEM
    5.
    发明申请
    ENDOSCOPE SYSTEM 审中-公开

    公开(公告)号：US20190038119A1

    公开(公告)日：2019-02-07

    申请号：US16055168

    申请日：2018-08-06

    Applicant: FUJIFILM Corporation

    Inventor： Yoshinori MORIMOTO ,  Eiji OHASHI

    IPC: A61B1/06 ,  A61B1/04

    Abstract: There is provided an endoscope system capable of maintaining a constant light amount ratio for each wavelength of light emitted from an endoscope.The endoscope system has: an endoscope that has a light guide; two or more light sources that supply light to the light guide and have different main wavelengths; a light source driving unit that supplies a driving signal to each of the light sources; a light source control unit that makes the light source driving unit generate a driving signal corresponding to the light amount setting value; and a light source information storage unit that stores information of the main wavelength. The endoscope has a scope information storage unit that stores information of a scope type. The light source control unit adjusts a light amount ratio of the light source to a preset light amount ratio by acquiring the information of the main wavelength of the light source from the light source information storage unit, acquiring the information of the scope type from the scope information storage unit, setting the light amount setting value according to at least the information of the main wavelength and information of a length of the light guide obtained from the information of the scope type, and inputting the light amount setting value to the light source driving unit to control a light emission amount of the light source driven by the light source driving unit.

    LIGHT SOURCE APPARATUS AND ENDOSCOPE SYSTEM
    6.
    发明申请
    LIGHT SOURCE APPARATUS AND ENDOSCOPE SYSTEM 审中-公开
    光源装置和内窥镜系统

    公开(公告)号：US20140005483A1

    公开(公告)日：2014-01-02

    申请号：US13932291

    申请日：2013-07-01

    Applicant: FUJIFILM Corporation

    Inventor： Eiji OHASHI ,  Yoshinori MORIMOTO ,  Toshiyuki INOUE

    IPC: A61B1/00 ,  F21V33/00

    CPC classification number: A61B1/00195 ,  A61B1/063 ,  A61B1/0646 ,  A61B1/0653 ,  A61B1/0669 ,  A61B1/0684 ,  F21V33/0068

    Abstract: A light source apparatus for supplying a light guide device incorporated in an endoscope with a light beam is provided. A light emitting device of semiconductor, for example, laser diode generates the light beam. A light homogenizer homogenizes irradiance distribution of the light beam in a radial direction. A short focus lens is disposed between the light homogenizer and the light guide device, for enlarging a divergence angle of the light beam. Furthermore, the light homogenizer is a transparent light guide rod disposed to extend in an optical axis direction of the light beam. A diameter of the light homogenizer is constant in an optical axis direction thereof. The diameter of the light homogenizer is equal to or less than a diameter of the short focus lens.

    Abstract translation: 提供了一种用于向内置有光束的导光装置提供光源装置。 例如，半导体的发光器件，激光二极管产生光束。 光匀浆器使光束在辐射方向上的辐照度分布均匀化。 在光均化器和导光装置之间设置短焦距透镜，用于放大光束的发散角。 此外，光均化器是设置​​成沿光束的光轴方向延伸的透明导光杆。 光均化器的直径在其光轴方向上是恒定的。 光均化器的直径等于或小于短焦透镜的直径。

    LIGHT SOURCE APPARATUS AND ENDOSCOPE SYSTEM
    7.
    发明申请
    LIGHT SOURCE APPARATUS AND ENDOSCOPE SYSTEM 审中-公开

    公开(公告)号：US20190013444A1

    公开(公告)日：2019-01-10

    申请号：US16105248

    申请日：2018-08-20

    Applicant: FUJIFILM Corporation

    Inventor： Yoshinori MORIMOTO ,  Satoshi OZAWA ,  Eiji OHASHI

    IPC: H01L33/50 ,  H01L33/58 ,  H01L27/15 ,  F21V8/00 ,  A61B1/06 ,  G02B23/24 ,  A61B1/07

    Abstract: A fluorescent type of green light source of a semiconductor in a light source apparatus for an endoscope includes a blue excitation light source device and green emitting phosphor. The blue excitation light source device emits blue excitation light. The green emitting phosphor is excited by the blue excitation light, and emits green fluorescence. A dichroic filter in a dichroic mirror cuts off the blue excitation light from an emission spectrum of mixed light of the blue excitation light and green fluorescence from the fluorescent type of green light source. Thus, illumination light with the emission spectrum of a target can be stably supplied without influence of the blue excitation light to a light amount of blue light from a blue light source of a semiconductor.

    LIGHT SOURCE DEVICE FOR ENDOSCOPE AND ENDOSCOPE SYSTEM
    9.
    发明申请
    LIGHT SOURCE DEVICE FOR ENDOSCOPE AND ENDOSCOPE SYSTEM 审中-公开
    内镜和内窥镜系统的光源装置

    公开(公告)号：US20160058349A1

    公开(公告)日：2016-03-03

    申请号：US14839476

    申请日：2015-08-28

    Applicant: FUJIFILM Corporation

    Inventor： Yoshinori MORIMOTO ,  Satoshi OZAWA

    IPC: A61B5/1455 ,  F21V33/00 ,  F21V23/00 ,  A61B5/00 ,  A61B1/005 ,  A61B1/06 ,  A61B5/1459 ,  F21V9/08 ,  A61B1/00

    CPC classification number: A61B5/1459 ,  A61B1/00009 ,  A61B1/0638 ,  A61B1/0646 ,  A61B1/0669 ,  A61B5/14551

    Abstract: A band limiter comprises an optical filter, which has first and second filter sections, and a filter moving mechanism for moving the optical filter. The first filter section reduces intensity of blue light, which is emitted from a B-LED, in a wavelength range of greater than or equal to a peak wavelength of the blue light to generate first blue light. The second filter section reduces intensity of the blue light in a wavelength range of less than or equal to the peak wavelength of the blue light to generate second blue light. A light source controller places the first filter section in a light path of the blue light in a normal mode to generate the first blue light, and places the second filter section in the light path of the blue light in an oxygen saturation mode to generate the second blue light.

    Abstract translation: 带限制器包括具有第一和第二滤波器部分的滤光器和用于移动滤光器的滤光器移动机构。 第一滤波器部分在大于或等于蓝光的峰值波长的波长范围内降低从B-LED发射的蓝光的强度，以产生第一蓝光。 第二滤光器部降低在蓝色光的峰值波长的波长范围内的蓝色光的强度，生成第二蓝色光。 光源控制器将第一滤光器部分放置在正常模式的蓝光的光路中，以产生第一蓝光，并将第二滤光器部分放置在氧饱和模式的蓝光的光路中，以产生 第二个蓝灯。

    ENDOSCOPE SYSTEM, LIGHT SOURCE DEVICE, OPERATION METHOD FOR ENDOSCOPE SYSTEM, AND OPERATION METHOD FOR LIGHT SOURCE DEVICE
    10.
    发明申请
    ENDOSCOPE SYSTEM, LIGHT SOURCE DEVICE, OPERATION METHOD FOR ENDOSCOPE SYSTEM, AND OPERATION METHOD FOR LIGHT SOURCE DEVICE 有权
    内窥镜系统，光源装置，内窥镜系统的操作方法和光源装置的操作方法

    公开(公告)号：US20150366444A1

    公开(公告)日：2015-12-24

    申请号：US14712028

    申请日：2015-05-14

    Applicant: FUJIFILM Corporation

    Inventor： Yoshinori MORIMOTO ,  Satoshi OZAWA

    IPC: A61B1/06 ,  A61B5/1455 ,  A61B5/1459 ,  A61B1/04 ,  F21L14/02 ,  F21V33/00

    CPC classification number: A61B1/0638 ,  A61B1/00009 ,  A61B1/00186 ,  A61B1/0684 ,  A61B5/14551 ,  A61B5/1459

    Abstract: An endoscope system includes a light source unit, a band limiting unit, a light source control unit, an imaging sensor, an imaging control unit, and an oxygen saturation image generation unit. The light source unit includes a V-LED that emits violet light, a B-LED that emits blue light, a G-LED that emits green light, and an R-LED that emits red light. The band limiting unit generates measurement light having a specific wavelength band for measuring the oxygen saturation from the blue light. The light source control unit switches the control of the light source unit between a first light emission mode, in which the observation target is irradiated with the violet light, the measurement light, the green light, and the red light, and a second light emission mode, in which the observation target is irradiated with the measurement light.

    Abstract translation: 内窥镜系统包括光源单元，带限制单元，光源控制单元，成像传感器，成像控制单元和氧饱和度图像生成单元。 光源单元包括发出紫色光的V-LED，发出蓝色光的B-LED，发出绿色光的G-LED以及发出红色光的R-LED。 带限制单元产生具有特定波长带的测量光，用于测量蓝色光的氧饱和度。 光源控制单元在用紫光照射观察对象的第一发光模式，测量光，绿光和红光之间切换光源单元的控制，以及第二发光 模式，其中用测量光照射观察目标。

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