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公开(公告)号：US20180325365A1
公开(公告)日：2018-11-15
申请号：US16042185
申请日：2018-07-23
Applicant: OLYMPUS CORPORATION
Inventor： Ken FUJINUMA
CPC classification number: A61B1/0669 , A61B1/00 , A61B1/00006 , A61B1/00172 , A61B1/06 , A61B1/0646 , A61B1/07 , A61B5/0062 , H04N5/2256
Abstract: An optical scanning imaging/projection apparatus includes a light source that outputs illumination light and projection light in the visible range, an optical scanner that scans the illumination light and the projection light, which are output from the light source, along a predetermined scanning trajectory, a switch that switches the output from the light source so that the illumination light and the projection light are alternately output, an optical detector that detects observation light generated by a subject irradiated with the illumination light, a storage that stores data in which an intensity of the detected observation light detected is associated with information indicating a detection position on the scanning trajectory, and a projection light controller that controls, on the basis of the data stored in the storage unit, an intensity of the projection light to be applied to each position on the scanning trajectory.
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公开(公告)号：US20160377856A1
公开(公告)日：2016-12-29
申请号：US15191801
申请日：2016-06-24
Applicant: OLYMPUS CORPORATION
Inventor： Takeshi MORI , Ken FUJINUMA
CPC classification number: G02B23/2469 , A61B1/00036 , A61B1/00172 , A61B1/0638 , G02B23/2476 , G02B23/2484 , G02B23/26 , G02B26/10 , G02B26/103 , H04N9/07 , H04N9/43 , H04N9/77 , H04N2209/044
Abstract: An optical scanning observation apparatus includes: a light source selectively emitting a plurality of illumination lights of different colors; a light emission timing controller controlling light emission timing, based on a predetermined ratio of number of light emissions of each color of the illumination light emitted from the light source; a fiber guiding the illumination light from the light source; an actuator vibratory driving the tip part of the fiber; an optical system for irradiating the illumination light emitted from the fiber; an optical detector; and a signal processor.
Abstract translation: 光学扫描观察装置包括：选择性地发射多种不同颜色的照明光的光源; 基于从所述光源发射的所述照明光的每种颜色的发光次数的预定比例来控制发光定时的发光定时控制器; 引导来自光源的照明光的光纤; 致动器振动驱动光纤的尖端部分; 用于照射从光纤发出的照明光的光学系统; 光学检测器; 和信号处理器。
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公开(公告)号：US20160327782A1
公开(公告)日：2016-11-10
申请号：US15215626
申请日：2016-07-21
Applicant: OLYMPUS CORPORATION
Inventor： Takeshi MORI , Ken FUJINUMA
CPC classification number: G02B23/2484 , A61B1/00006 , A61B1/00057 , A61B1/00172 , A61B1/07 , G02B23/2469 , G02B26/103 , H04N5/2256 , H04N5/2354 , H04N2005/2255
Abstract: An optical scanning observation apparatus includes a light emission timing controller, a fiber, a driver, a photodetector, an offset processor that corrects an offset value based on an electrical signal output by the photodetector while a light emission timing controller suspends light emission of a light source, and a signal processor that generates an image signal based on the electrical signal for which the offset value was corrected by the offset processor.
Abstract translation: 光学扫描观察装置包括发光定时控制器，光纤，驱动器，光电检测器，偏移处理器，其在发光定时控制器暂停发光的同时基于由光电检测器输出的电信号来校正偏移值 源和信号处理器，其基于偏移处理器校正了偏移值的电信号产生图像信号。
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Patent Agency Ranking
公开(公告)号：US20170090185A1
公开(公告)日：2017-03-30
申请号：US15377009
申请日：2016-12-13
Applicant: OLYMPUS CORPORATION
Inventor： Ken FUJINUMA
CPC classification number: G02B26/103 , A61B1/00006 , A61B1/00009 , A61B1/00027 , A61B1/00045 , A61B1/00096 , A61B1/00172 , A61B1/04 , A61B1/063 , A61B1/0684 , A61B1/07 , G02B23/2469 , G02B23/26 , G02B26/10
Abstract: Included are an optical fiber (11), a driver (21) that drives an emission end (11b) of the optical fiber (11), a current detector (55) that detects a current flowing in the driver (21), and a controller (31) that scans light emitted from the optical fiber (11) by controlling the driver (21) based on output of the current detector (55). The driver (21) comprises vibration elements (28a to 28d), ground terminals of the vibration elements (28a to 28d) are connected in common to the driver (21), and the current detector (55) detects the current at the power supply terminal of the vibration elements (28a to 28d).
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公开(公告)号：US20150028193A1
公开(公告)日：2015-01-29
申请号：US14458474
申请日：2014-08-13
Applicant: OLYMPUS CORPORATION
Inventor： Ken FUJINUMA , Shintaro TAKAHASHI
CPC classification number: G01N21/17 , G01J1/44 , G01J2001/4242 , G01N2201/06113 , G01N2201/0697 , G02B21/002 , G02B21/0084 , G02B21/16 , G02B23/24
Abstract: A laser scanning type observation apparatus includes a pulsed-laser oscillation means irradiating pulsed laser to an object, a detector receiving light from the object to output a detection signal, a means detecting pulsed-laser oscillation to output a synchronous signal, a circuit delaying the synchronous signal for an optional amount of time to output a trigger signal, a means sampling the detection signal in synchronization with the trigger signal, a memory storing the sampled detection signal, a setting unit capable of setting delay time for delaying the synchronous signal in two or more stages within one period of the synchronous signal, and a decision unit determining an optimum delay stage for image formation using data on intensities of the detection signal at the respective delay stages, wherein the setting means fixes delay time for delaying the synchronous signal at delay time corresponding to the delay stage determined by the decision unit.
Abstract translation: 激光扫描型观察装置包括将物体照射脉冲激光的脉冲激光振荡装置，从物体接收光以输出检测信号的检测器，检测脉冲激光振荡以输出同步信号的装置，延迟电路 同步信号，用于输出触发信号的可选择的时间量，与触发信号同步地对检测信号进行采样的装置;存储采样检测信号的存储器;能够设置用于延迟同步信号的延迟时间的设置单元 或同步信号的一个周期内的多个阶段，以及判定单元，使用关于各个延迟级的检测信号的强度的数据，确定用于图像形成的最佳延迟级，其中，所述设定单元固定用于将同步信号延迟的延迟时间 延迟时间对应于由判定单元确定的延迟级。
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公开(公告)号：US20190258050A1
公开(公告)日：2019-08-22
申请号：US16403830
申请日：2019-05-06
Applicant: OLYMPUS CORPORATION
Inventor： Ken FUJINUMA , Yuhei TAKATA
Abstract: A scanning-type image acquisition device includes: drivers that respectively vibrate in an x direction and a y direction that are perpendicular to a longitudinal axis of an optical fiber that guides illumination light from a light source and cause a tip of the optical fiber to be spirally scanned on a subject; a drive-signal generating circuit that generates drive signals for driving the drive units; an adjustment section that adjusts the drive signals generated by the drive-signal generating circuit and generates position reference data; a photodetector that detects scattered light of the illumination light at each scanning position of an illumination light spot on the subject due to the drivers; and an image generating circuit that generates an image by arranging intensity values of the scattered light detected by the photodetector in pixels in accordance with the position reference data output from the adjustment section.
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公开(公告)号：US20180136455A1
公开(公告)日：2018-05-17
申请号：US15868352
申请日：2018-01-11
Applicant: OLYMPUS CORPORATION
Inventor： Ken FUJINUMA
Abstract: An optical scanning method includes detecting a resonance frequency of a tip of a fiber while sweeping a vibration frequency of the tip of the fiber over a predetermined frequency range, the tip of the fiber being supported to allow oscillation, determining a driving frequency of the tip of the fiber on the basis of the detected resonance frequency, and scanning light over an object by causing the light to be emitted from the tip of the fiber while driving and vibrating the tip of the fiber at the driving frequency.
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公开(公告)号：US20180064323A1
公开(公告)日：2018-03-08
申请号：US15811858
申请日：2017-11-14
Applicant: OLYMPUS CORPORATION
Inventor： Ken FUJINUMA
CPC classification number: A61B1/07 , A61B1/00006 , A61B1/00096 , A61B1/00126 , A61B1/00133 , A61B1/00172 , G02B23/2407 , G02B23/26 , G02B26/103
Abstract: A scanning endoscope including an optical fiber scanner that vibrates a distal end of the optical fiber that guides illumination light and emits the illumination light from the distal end thereof, a controller that conducts control for vibrating the optical fiber at a certain driving frequency set according to a resonance frequency of the optical fiber and for controlling amplitude of the vibration so as to be changed at a certain modulation frequency, and a movement detector that detects the resonance frequency of the optical fiber, wherein the controller changes the driving frequency and the modulation frequency at the same rate as the rate of change of the resonance frequency when the resonance frequency of the optical fiber detected by the movement detector changes.
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