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公开(公告)号：US20180103835A1
公开(公告)日：2018-04-19
申请号：US15845349
申请日：2017-12-18
Applicant: OLYMPUS CORPORATION
Inventor： Masashi YAMADA , Atsuyoshi SHIMAMOTO , Mitsuru NAMIKI
CPC classification number: A61B1/00172 , A61B1/00057 , A61B1/07 , G02B23/2423 , G02B23/2469 , G02B23/26 , G02B26/101 , G02B26/103
Abstract: A scanning-endoscope image evaluation system includes: a scanning endoscope provided with a light detector and a fiber scanner that includes an optical fiber for guiding illumination light coming from a light source and emitting it from its distal end and an actuator that scans the emitted illumination light by vibrating the distal end of the optical fiber; and a chart for evaluating a characteristic of an image acquired by the scanning endoscope, wherein the distal end of the optical fiber and the light detector are disposed so as to face each other with the chart sandwiched therebetween, and forward scattered light that has been emitted from the optical fiber and that has passed through the chart is detected by the light detector.
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公开(公告)号：US20180038686A1
公开(公告)日：2018-02-08
申请号：US15789390
申请日：2017-10-20
Applicant: OLYMPUS CORPORATION
Inventor： Masashi YAMADA , Atsuyoshi SHIMAMOTO , Soichiro KOSHIKA
CPC classification number: G01B11/26 , A61B1/00057 , A61B1/00172 , G01M11/00 , G02B23/2469 , G02B23/26 , G02B26/10 , G02B26/101 , G02B26/103
Abstract: A method of measuring scanning characteristics of an optical scanning apparatus allows measurement of scanning characteristics of an actuator. The method includes bringing a tip of the optical scanning apparatus and a chart for measuring scanning characteristics closer together and irradiating illumination light with the actuator in a non-driven state, separating the tip and the chart for measuring scanning characteristics by a predetermined distance while maintaining the relative orientations thereof, and adjusting a drive signal of the actuator so that a scanning area of the illumination light on the chart for measuring scanning characteristics can form a desired shape. At least one of an angle of deviation and a viewing angle is measured using an irradiation position of the illumination light on the chart for measuring scanning characteristics.
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13.发明申请METHOD FOR CALCULATING SCANNING PATTERN OF LIGHT, AND OPTICAL SCANNING APPARATUS 有权计算光扫描图案的方法和光学扫描装置公开(公告)号：US20170045734A1
公开(公告)日：2017-02-16
申请号：US15238848
申请日：2016-08-17
Applicant: OLYMPUS CORPORATION
Inventor： Atsuyoshi SHIMAMOTO
CPC classification number: G02B26/103 , A61B1/00006 , A61B1/00172 , A61B1/07 , G02B23/2469 , G02B23/26 , H02N2/008
Abstract: Provided is a method for calculating a scanning pattern of light and an optical scanning apparatus. The method includes the steps of: detecting a resonance frequency and an attenuation coefficient of an oscillation part of an optical fiber which guides light from a light source and irradiates an object with the light; and calculating a scanning pattern of the light, based on the detected resonance frequency and attenuation coefficient. The apparatus includes: an optical fiber which guides light from a light source and irradiates an object with the light; a scanning part which drives an oscillation part oscillatably supported of the optical fiber; a detector which detects a resonance frequency of the oscillation part; a calculation part which determines an irradiation position of the light using a scanning pattern calculated based on the resonance frequency detected by the detector and the attenuation coefficient obtained in advance.
Abstract translation: 提供了一种计算光的扫描图案的方法和光学扫描装置。 该方法包括以下步骤：检测从光源引导光并用光照射物体的光纤的振荡部分的谐振频率和衰减系数; 以及基于检测到的共振频率和衰减系数来计算光的扫描图案。 该装置包括：光源，其引导来自光源的光并用光照射物体; 驱动振荡部的扫描部，其以光纤为中心摆动地支撑; 检测所述振荡部的谐振频率的检测器; 计算部，其使用基于由检测器检测到的谐振频率计算出的扫描图案和预先获得的衰减系数来决定光的照射位置。
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14.发明申请公开(公告)号：US20140177021A1
公开(公告)日：2014-06-26
申请号：US14193439
申请日：2014-02-28
Applicant: OLYMPUS CORPORATION
Inventor： Atsuyoshi SHIMAMOTO
IPC: G02B26/10
CPC classification number: G02B26/101 , A61B1/00165 , A61B1/00172 , F04C2270/041 , G02B21/0044 , G02B23/2423 , G02B26/103
Abstract: An optical scanning device includes an optical fiber, a holding member cantilevering the optical fiber, a first driving device placed on the distal end of the optical fiber and making the optical fiber vibrate in a first direction, and a second driving device placed between the holding member for the optical fiber and the first driving device and making the optical fiber vibrate in a second direction which crosses the first direction.
Abstract translation: 一种光学扫描装置，包括光纤，悬置光纤的保持构件，放置在光纤的前端的第一驱动装置，使光纤沿第一方向振动，以及第二驱动装置， 用于光纤和第一驱动装置的构件，并使光纤沿与第一方向交叉的第二方向振动。
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公开(公告)号：US20210378745A1
公开(公告)日：2021-12-09
申请号：US17406412
申请日：2021-08-19
Applicant: OLYMPUS CORPORATION
Inventor： Ikutoshi FUKUSHIMA , Atsuyoshi SHIMAMOTO , Mitsuru NAMIKI
Abstract: A lithotripsy apparatus includes: a treatment laser beam source that emits a treatment laser beam that crushes a stone; a guide light source that emits guide light; a photodetector that detects return light that returns as a result of the emitted guide light being reflected at the stone; and a processor including hardware, the processor being configured to: measure a distance from the treatment laser beam source to the stone on the basis of the return light; determine a condition of a bubble occurring between the treatment laser beam source and the stone on the basis of the measured distance; and adjust a light quantity of the treatment laser beam on the basis of the determined condition of the bubble.
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Patent Agency Ranking
16.发明申请公开(公告)号：US20180007335A1
公开(公告)日：2018-01-04
申请号：US15705503
申请日：2017-09-15
Applicant: OLYMPUS CORPORATION
Inventor： Junichi NISHIMURA , Atsuyoshi SHIMAMOTO
CPC classification number: H04N9/73 , A61B1/00006 , A61B1/00009 , A61B1/00172 , A61B1/042 , A61B1/0638 , A61B1/0669 , A61B1/07 , G02B23/2469 , G02B26/103 , H04N5/23229
Abstract: A scanning observation apparatus (10) deflects illumination light with an actuator (25) through an illumination optical system (26) to scan an object (32), subjects light from the object (32) to photoelectric conversion with an optical detector (44), performs processing with an image processor (46), and displays an image of the object (32) on a display (60). A memory (35) stores information on optical characteristics related to chromatic aberration of magnification of the illumination optical system (26) relative to light of predetermined colors. A scanning pattern calculator (45) calculates a scanning pattern, on the object (32), of light of each color using the information. Using the scanning pattern, the image processor (46) calibrates a plot position yielded by a photoelectric conversion signal from the optical detector (44) for light of each color and generates an image of the object (32), thereby more easily correcting the chromatic aberration of magnification.
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公开(公告)号：US20170311776A1
公开(公告)日：2017-11-02
申请号：US15654759
申请日：2017-07-20
Applicant: OLYMPUS CORPORATION
Inventor： Atsuyoshi SHIMAMOTO
CPC classification number: A61B1/00013 , A61B1/00009 , A61B1/00172 , A61B1/07 , G02B23/2469 , G02B26/10 , G02B26/103
Abstract: An optical scanning endoscope apparatus includes: an illumination optical fiber that emits light from a tip part oscillatably supported; an actuator that drives the tip part of the illumination optical fiber; and a signal generator that generates, with respect to the actuator, a drive signal for causing the tip part of the illumination optical fiber to spiral scan. The signal generator generates the drive signal which includes: an amplitude expansion period for expanding the amplitude of the drive signal of the fiber from substantially 0 to a maximum value; and an amplitude contraction period for contracting the amplitude of the drive signal from the maximum value to substantially 0, the drive signal having an envelope that smoothly continues, with a gradient of substantially 0, across a border between the periods, with the longer one of the periods being defined as an effective scanning period.
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公开(公告)号：US20160187647A1
公开(公告)日：2016-06-30
申请号：US15065969
申请日：2016-03-10
Applicant: OLYMPUS CORPORATION
Inventor： Masato FUJIWARA , Atsuyoshi SHIMAMOTO , Takeharu INNAMI , Junichi NISHIMURA
CPC classification number: G02B26/103 , A61B1/00172 , A61B1/07 , G02B23/2423 , G02B23/2469 , G02B26/10 , G02B26/101
Abstract: An optical fiber is vibrated at an emitting end part by a scanning part, and light is irradiated from an emitting end face of the optical fiber onto an object to scan the object. The scanning part includes a pair of first direction coils facing each other in a first direction across the emitting end part, and a permanent magnet installed as penetrating the emitting end part. The permanent magnet is magnetized in the axial direction of the emitting end part. The scanning part drives, by supplying power to the first direction coils, the emitting end part to vibrate in the first direction in the second or higher-order resonance mode, forming nodes of the vibration within the permanent magnet. When in a state of non-vibration in the first direction, a relative distance between the permanent magnet and the first direction coils is smaller than that in other directions.
Abstract translation: 光纤通过扫描部在发光端部振动，并且将光从光纤的发射端面照射到物体上以扫描物体。 扫描部分包括一对沿着第一方向相对于发射端部彼此面对的第一方向线圈，以及安装成穿过发射端部的永磁体。 永磁体在发射端部的轴向上被磁化。 扫描部通过向第一方向线圈供电，通过向第一或第二谐振模式的第一方向驱动发射端部，从而形成永磁体内的振动的节点。 当处于第一方向的非振动状态时，永磁体和第一方向线圈之间的相对距离小于其它方向的相对距离。
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19.发明申请OPTICAL SCANNING UNIT, OPTICAL SCANNING OBSERVATION APPARATUS, AND OPTICAL FIBER SCANNING APPARATUS 审中-公开光学扫描单元，光学扫描观察装置和光纤扫描装置公开(公告)号：US20160150948A1
公开(公告)日：2016-06-02
申请号：US14947322
申请日：2015-11-20
Applicant: OLYMPUS CORPORATION
Inventor： Atsuyoshi SHIMAMOTO
CPC classification number: A61B1/07 , A61B1/00006 , A61B1/00009 , A61B1/00096 , A61B1/00158 , A61B1/00172 , A61B1/04 , A61B1/0638 , A61B1/0676 , G02B23/2469 , G02B26/103 , G02B27/64
Abstract: Provided is an optical scanning unit including: an optical fiber; an actuator; a reducing part; a detection part; and a controller. The optical fiber oscillates the emitting end, to thereby scan the object. The actuator oscillates the emitting end. The reducing part reduces the transmission of light emitted from the emitting end. The detection part detects light at the object when light is irradiated onto the object. The controller forms an image, based on light detected by the detection part and the state of oscillation of the optical fiber. The controller calculates the eccentricity in the image thus formed, based on a position where the received amount of light is reduced and the center position of the image.
Abstract translation: 提供了一种光学扫描单元，包括：光纤; 执行机构 减少部分; 检测部分; 和控制器。 光纤使发射端振荡，从而扫描物体。 致动器振荡发射端。 还原部分减少从发射端发射的光的透射。 当光照射到物体上时，检测部分检测物体上的光。 控制器根据检测部分检测到的光和光纤的振荡状态形成图像。 控制器基于所接收的光量减少的位置和图像的中心位置来计算如此形成的图像中的偏心率。
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公开(公告)号：US20160143515A1
公开(公告)日：2016-05-26
申请号：US14947248
申请日：2015-11-20
Applicant: OLYMPUS CORPORATION
Inventor： Atsuyoshi SHIMAMOTO , Junichi NISHIMURA
CPC classification number: A61B1/00172 , A61B1/00006 , A61N5/01 , A61N5/0603 , A61N2005/063 , A61N2005/067 , G02B23/2407
Abstract: An optical scanning endoscope apparatus, includes: an irradiation fiber having an emitting end thereof oscillatably supported and irradiating light from a light source part onto an object; and a drive mechanism for driving the emitting end so as to cause light from the light source to be irradiated onto the object, in which the apparatus has a first irradiation mode as an imaging mode (corresponding to t1) for repeatedly scanning a desired region of the object with light from the light source and a second irradiation mode (corresponding to t4) for irradiating, between the temporally-adjacent scans in the first irradiation mode, a designated region selected from the desired region of the object, and provides, when the second irradiation mode is started, the drive mechanism with an offset signal (I0) for irradiating the designated region, and maintains the offset signal while repeating the irradiation in the second irradiation mode.
Abstract translation: 一种光学扫描内窥镜装置，包括：照射光纤，其发射端可摆动地支撑，并将光从光源部分照射到物体上; 以及驱动机构，用于驱动所述发射端，以便使来自所述光源的光照射到所述物体上，其中所述装置具有作为成像模式的第一照射模式（对应于t1），以反复扫描所需的区域 物体具有来自光源的光和第二照射模式（对应于t4），用于在第一照射模式中的时间相邻的扫描之间照射从物体的期望区域中选择的指定区域，并且当 第二照射模式开始，具有用于照射指定区域的偏移信号（I0）的驱动机构，并且在第二照射模式下重复照射时保持偏移信号。
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