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.

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.

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。

公开(公告)号：US20190068864A1

公开(公告)日：2019-02-28

申请号：US16102756

申请日：2018-08-14

Applicant: FUJIFILM Corporation

Inventor： Eiji OHASHI ,  Yoshinori MORIMOTO

IPC: H04N5/235 ,  A61B1/06 ,  A61B1/04 ,  H04N9/04

CPC classification number: H04N5/2354 ,  A61B1/00009 ,  A61B1/043 ,  A61B1/0638 ,  A61B1/0653 ,  A61B1/0684 ,  H04N5/2351 ,  H04N9/04511 ,  H04N2005/2255

Abstract: Provided is an endoscope system that maintains the hue of an endoscopic image even in a case where a wavelength shift occurs in light for observation.An endoscope system includes a light source unit including at least one first light source that emits light including two color components with mutually different wavelengths; an image sensor having at least a first element part that has a spectral sensitivity for a first color component and a second element part that has a spectral sensitivity for the second color component out of the two color components of the first light source; and a processor that images an observation object using the light emitted from the at least one first light source of the light source unit and obtains a first signal value of the first color component obtained in the first element part of the image sensor, and a second signal value of the second color component obtained in the second element part. The processor calculates a signal ratio between the first signal value and the second signal value, and sets the signal ratio to a predetermined set value by changing at least one signal value out of the first signal value and the second signal value.

公开(公告)号：US20150099932A1

公开(公告)日：2015-04-09

申请号：US14505293

申请日：2014-10-02

Applicant: FUJIFILM Corporation

Inventor： Yoshinori MORIMOTO ,  Satoshi OZAWA ,  Eiji OHASHI

IPC: H01L33/50 ,  A61B1/06 ,  H05B33/08 ,  F21V8/00 ,  H01L27/15 ,  H01L33/58

CPC classification number: H01L33/50 ,  A61B1/00057 ,  A61B1/043 ,  A61B1/0638 ,  A61B1/0646 ,  A61B1/0653 ,  A61B1/0661 ,  A61B1/0684 ,  A61B1/07 ,  G02B6/0005 ,  G02B23/2469 ,  G03B2215/0567 ,  H01L27/15 ,  H01L33/58 ,  H01L2224/48091 ,  H01L2224/49107 ,  H01L2924/00012 ,  H01L2924/00014 ,  H01L2924/181 ,  H05B33/0854

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.

Abstract translation: 在内窥镜用光源装置中，荧光型的绿色光源包括蓝色激发光源装置和绿色荧光体。 蓝色激发光源装置发出蓝色激发光。 绿色荧光体被蓝色激发光激发，并发出绿色荧光。 二向色镜中的二向色滤光片从荧光型绿色光源的蓝色激发光和绿色荧光的混合光的发射光谱切断蓝色激发光。 因此，可以稳定地提供具有目标的发射光谱的照明光，而不受蓝色激发光的影响，使得来自半导体的蓝色光源的蓝光的光量。

公开(公告)号：US20150065802A1

公开(公告)日：2015-03-05

申请号：US14319488

申请日：2014-06-30

Applicant: FUJIFILM Corporation

Inventor： Satoshi OZAWA ,  Eiji OHASHI ,  Yoshinori MORIMOTO

IPC: A61B1/06

CPC classification number: A61B1/0638 ,  A61B1/043 ,  A61B1/0646 ,  A61B1/0669 ,  A61B1/0684

Abstract: A light source apparatus outputs light for an endoscope apparatus. A blue LED emits blue light with a peak wavelength equal to or longer than 450 nm. A wavelength cut-off filter is disposed downstream of the blue LED, for cutting off a component in the blue light having a wavelength equal to or longer than the peak wavelength. Preferably, the wavelength cut-off filter cuts off a component of a wavelength equal to or longer than a reference wavelength in a wavelength range equal to or longer than the peak wavelength. A mode changer changes over an enhancement mode and a normal mode, the enhancement mode is set for enhancing and imaging a surface blood vessel of the object by use of the wavelength cut-off filter, the normal mode is set for imaging the object by disabling a function of the wavelength cut-off filter.

Abstract translation: 光源装置输出内窥镜装置的光。 蓝色LED发出峰值波长等于或大于450nm的蓝色光。 波长截止滤波器设置在蓝色LED的下游，用于切断波长等于或长于峰值波长的蓝色光中的分量。 优选地，波长截止滤波器在等于或长于峰值波长的波长范围内切断等于或长于参考波长的波长的分量。 模式改变器在增强模式和正常模式下改变，通过使用波长截止滤波器设置增强和成像对象的表面血管的增强模式，通过禁用来设置用于成像对象的正常模式 波长截止滤波器的功能。

公开(公告)号：US20130345517A1

公开(公告)日：2013-12-26

申请号：US13921504

申请日：2013-06-19

Applicant: FUJIFILM CORPORATION

Inventor： Yoshinori MORIMOTO ,  Eiji OHASHI ,  Maki SAITO

IPC: A61B1/06 ,  H05B37/02 ,  A61B1/07 ,  F21V33/00

CPC classification number: A61B1/0661 ,  A61B1/0638 ,  A61B1/0653 ,  A61B1/0669 ,  A61B1/07 ,  F21V33/0068 ,  H05B37/02

Abstract: A light source apparatus for supplying an endoscope with light includes at least one light source unit for generating the light. A transparent light homogenizer includes an entrance end face, disposed on a proximal side in an optical axis direction, for receiving entry of the light, an exit end face, disposed on a distal side in the optical axis direction, for exiting the light traveling from the entrance end face, and a reflective interface, formed in a tubular shape between the entrance end face and the exit end face, for total reflection of the light in an internal manner and for directing the light in the optical axis direction. A photo sensor is disposed on the reflective interface, for measuring a light amount of the light. The light homogenizer regularizes the light amount of the light from the exit end face in a radial direction.

Abstract translation: 用于向内窥镜供应光的光源装置包括用于产生光的至少一个光源单元。 透明光均化器包括入射端面，该入射端面设置在光轴方向的近侧，用于接收入射光;出射端面，设置在光轴方向的远端侧，用于离开 入射端面和反射界面，其在入射端面和出射端面之间形成为管状，用于内部全部反射光并且用于沿光轴方向引导光。 光传感器设置在反射界面上，用于测量光量。 光均化器使径向出射端面的光的光量正规化。