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公开(公告)号：US09894258B2
公开(公告)日：2018-02-13
申请号：US15012050
申请日：2016-02-01
Applicant: OLYMPUS CORPORATION
Inventor： Tomoki Iwasaki , Kazuma Kaneko , Susumu Hashimoto , Yuji Kutsuma , Soichiro Koshika
CPC classification number: H04N5/2256 , A61B1/00006 , A61B1/00009 , A61B1/04 , A61B1/0638 , A61B1/0646 , A61B1/0661 , G02B23/2461 , H04N5/23245 , H04N2005/2255
Abstract: An image pickup apparatus includes a light source apparatus emitting a first or a second illumination light to an object, an image pickup device acquiring an image of the object, and a CPU switching between a first mode where the image is picked up with the first illumination light and a second mode where the image is picked up with the second illumination light, being able to set at least one of a processing parameter for processing an image and a brightness control parameter before switching the illumination light to the illumination light corresponding to the mode or after switching to the corresponding illumination light is completed, and controlling whether the processing parameter is set before switching of the illumination light is started or after switching is completed according to the mode switching from the first to the second mode or from the second to the first mode.
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公开(公告)号：US09823467B2
公开(公告)日：2017-11-21
申请号：US15412419
申请日：2017-01-23
Applicant: OLYMPUS CORPORATION
Inventor： Yuji Sakai , Hiroyuki Takizawa , Daiki Ariyoshi , Soichiro Koshika
CPC classification number: G02B26/103 , A61B1/00172 , A61B1/0661 , A61B1/07 , G02B23/2469
Abstract: A scanning type endoscope includes a light guide section configured to guide illumination light, a ferrule provided along the light guide section, an actuator configured to vibrate the ferrule to thereby swing a distal end of the light guide section, a cylindrical member configured to include a space containing the light guide section, the ferrule and the actuator and being provided along the light guide section, and a damping section configured to fix the ferrule to the cylindrical member and absorb vibration of the ferrule, in which the damping section is formed of a ferrule holding member configured to hold a proximal end of the ferrule and a ring-shaped member configured to fix the ferrule holding member to the cylindrical member, be disposed near a joint in the cylindrical member connected to holding member and be made of a material that absorbs vibration of the ferrule.
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公开(公告)号：US10126121B2
公开(公告)日：2018-11-13
申请号：US15789390
申请日：2017-10-20
Applicant: OLYMPUS CORPORATION
Inventor： Masashi Yamada , Atsuyoshi Shimamoto , Soichiro Koshika
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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公开(公告)号：US09835845B2
公开(公告)日：2017-12-05
申请号：US15353830
申请日：2016-11-17
Applicant: OLYMPUS CORPORATION
Inventor： Soichiro Koshika , Yuji Sakai , Hiroyuki Takizawa , Daiki Ariyoshi
CPC classification number: G02B23/2469 , A61B1/00 , A61B1/00117 , A61B1/00147 , A61B1/0016 , A61B1/00172 , A61B1/04 , A61B1/06 , G02B23/2476 , H04N5/2256 , H04N2005/2255
Abstract: A scanning endoscope includes: a light guide portion configured to guide an illuminating light that is emitted from a light source portion and irradiate an object with the illuminating light; an actuator configured to drive so as to cause a distal end of a light guide portion to scan, in order to scan the guided illuminating light over an object; a holding portion configured to hold the actuator; a rigid tubular member having a space that encloses the light guide portion, the actuator and the holding portion; and a connection portion that is interposed between the tubular member and the holding portion, and is configured to hold the holding portion at a prescribed position within the tubular member and to change shape in a circumferential direction that takes a longitudinal direction of the light guide portion as an axis when the tubular member or holding portion receives a force.
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公开(公告)号：US10765296B2
公开(公告)日：2020-09-08
申请号：US15837545
申请日：2017-12-11
Applicant: OLYMPUS CORPORATION
Inventor： Soichiro Koshika
Abstract: A scanning endoscope system includes an optical fiber configured to guide illumination light, and to emit the illumination light from an end portion, an actuator configured to shift an irradiation position of the illumination light, by swinging the end portion of the optical fiber, a drive signal generator configured to generate and supply a drive signal for driving the actuator, a current measurement section configured to measure, as a current measurement value, a current value of the drive signal supplied to the actuator, and a scan control section configured to perform control such that an amplitude value of the drive signal is switched, and to switch a threshold for detecting the current measurement value from a first threshold to a second threshold, when detecting that the current measurement value gradually changes and reaches the first threshold.
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Patent Agency Ranking
6.发明授权公开(公告)号：US10606067B2
公开(公告)日：2020-03-31
申请号：US15839177
申请日：2017-12-12
Applicant: OLYMPUS CORPORATION
Inventor： Atsuyoshi Shimamoto , Masashi Yamada , Soichiro Koshika
Abstract: A drive-condition setting device applied to an optical scanning apparatus having a fiber and an actuator that vibrates a distal end of the fiber, the drive-condition setting device detects a scan pattern of the illumination light output from the fiber, measures resonance frequencies in the x direction and the y direction of the fiber, sets a drive frequency and a drive voltage based on the resonance frequencies such that conditional expressions below are satisfied: when fx>fy, fd fx and Vx≤Vy (2), and when fx≤fy, fd fy and Vx≥Vy (4) where fd denotes the drive frequency, Vx denotes a maximum voltage of a X direction drive signal, and Vy denotes a maximum voltage of a y direction drive signal.
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公开(公告)号：US10034599B2
公开(公告)日：2018-07-31
申请号：US15356542
申请日：2016-11-19
Applicant: OLYMPUS CORPORATION
Inventor： Soichiro Koshika
CPC classification number: A61B1/00096 , A61B1/00 , A61B1/00006 , A61B1/00057 , A61B1/00172 , A61B1/0669 , A61B1/07 , G02B23/24
Abstract: A scanning endoscope apparatus is provided that includes: an endoscope having a light guide portion configured to guide and emit an illuminating light for illuminating a subject, and an actuator configured to oscillate the light guide portion; a storage portion configured to store a resonance frequency at a time when the light guide portion is caused to oscillate in a resonant state; an application portion configured to sequentially apply a plurality of signals having different frequencies to the actuator; a signal monitoring portion configured to monitor signals that are applied to the actuator; and a determination portion configured to compare a frequency of a signal which is smallest in a case where the actuator is taken as a load with the resonance frequency stored in the storage portion to determine whether or not the endoscope is abnormal.
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公开(公告)号：US11054565B2
公开(公告)日：2021-07-06
申请号：US16101551
申请日：2018-08-13
Applicant: OLYMPUS CORPORATION
Inventor： Atsuyoshi Shimamoto , Soichiro Koshika
Abstract: An optical scanning apparatus including: an optical fiber that is configured to guide light from a light source to emit the light from a distal end thereof; a driver that is configured to oscillate the distal end of the optical fiber at a driving frequency in a direction intersecting a longitudinal axis of the optical fiber; a resonance-frequency detector that is configured to detect a resonance frequency of the distal end of the optical fiber; and a driving-frequency adjustor that is configured to adjust the driving frequency so that the ratio between the resonance frequency detected by the resonance-frequency detector and the driving frequency becomes constant.
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公开(公告)号：US09962065B2
公开(公告)日：2018-05-08
申请号：US15291139
申请日：2016-10-12
Applicant: OLYMPUS CORPORATION
Inventor： Soichiro Koshika
CPC classification number: A61B1/00172 , A61B1/00 , A61B1/00004 , A61B1/04 , G02B23/24 , G02B23/2469 , G02B26/103
Abstract: An optical scanning observation system includes: an endoscope having an optical scanning portion for scanning an object; a drive signal generation portion configured to generate a drive signal and supply the signal to the optical scanning portion; an electric-current measurement portion configured to measure an electric current value of the drive signal; a first storage portion in which a measured electric current value when the temperature of the optical scanning portion is a predetermined temperature is stored; a second storage portion in which a plurality of parameters that are set according to the size of the measured electric current value are stored; and a correction processing portion configured to correct a scanning range of the endoscope by reading in from the second storage portion a parameter that corresponds to the size of the measured electric current value read in from the first storage portion.
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10.发明授权公开(公告)号：US09769394B2
公开(公告)日：2017-09-19
申请号：US15162969
申请日：2016-05-24
Applicant: OLYMPUS CORPORATION
Inventor： Yuji Kutsuma , Kazuma Kaneko , Tomoki Iwasaki , Susumu Hashimoto , Soichiro Koshika
CPC classification number: H04N5/2354 , H04N5/2351 , H04N5/243 , H04N5/347 , H04N5/367 , H04N2005/2255
Abstract: An image pickup apparatus includes an endoscope configured to have an image pickup section in which a plurality of pixels are provided, and a storage section configured to store scope individual information, a binning processing section configured to split an image into a plurality of regions so that one region includes a plurality of pixel signals, and add up the pixel signals for each region to obtain a binning pixel signal, a binning brightness detection section configured to detect brightness of the region, a blend processing section configured to set a weight in the region on the basis of the brightness, and weight and composite the pixel signals and the binning pixel signal to generate a composite image, and a control section configured to control the binning processing section in accordance with the scope individual information.
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