WO2018235277A1 - Dispositif de balayage à fibre optique et endoscope - Google Patents

Dispositif de balayage à fibre optique et endoscope Download PDF

Info

Publication number
WO2018235277A1
WO2018235277A1 PCT/JP2017/023250 JP2017023250W WO2018235277A1 WO 2018235277 A1 WO2018235277 A1 WO 2018235277A1 JP 2017023250 W JP2017023250 W JP 2017023250W WO 2018235277 A1 WO2018235277 A1 WO 2018235277A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical fiber
coil
opposing
scanning device
magnet
Prior art date
Application number
PCT/JP2017/023250
Other languages
English (en)
Japanese (ja)
Inventor
緒方　雅紀
Original Assignee
オリンパス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by オリンパス株式会社 filed Critical オリンパス株式会社
Priority to PCT/JP2017/023250 priority Critical patent/WO2018235277A1/fr
Publication of WO2018235277A1 publication Critical patent/WO2018235277A1/fr

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/26—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes using light guides
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems

Definitions

  • the present invention comprises an optical fiber scanning device having an optical fiber whose tip vibrates in a first direction and a second direction orthogonal to the first direction, and comprising the optical fiber scanning device at the tip of the insertion portion Related to endoscopes.
  • An image pickup apparatus using an image pickup element such as a CCD or a CMOS image sensor simultaneously receives reflected light from an object by an image pickup element unit including a large number of light receiving elements arranged in a matrix, and acquires an object image.
  • an image pickup element such as a CCD or a CMOS image sensor
  • the light scanning type imaging device while scanning and irradiating a subject with a light spot, the reflected light is sequentially received, and a subject image is created based on the received light data.
  • the optical fiber scanning device guides the light from the light source, and scans and irradiates the light spot by two-dimensionally scanning the tip of the optical fiber held at one end at a fixed end by vibrating. Is done.
  • the optical fiber vibrates when a magnetic field generated by a drive coil is applied to a permanent magnet disposed in the optical fiber.
  • a magnetic field generated by a drive coil is applied to a permanent magnet disposed in the optical fiber.
  • magnetic fields are applied in two orthogonal directions.
  • Japanese Patent Application Laid-Open No. 2015-211761 discloses an optical fiber scanning device in which a magnetic field is applied in two orthogonal directions by two pairs of opposing coils.
  • the optical fiber can be scanned more efficiently by arranging two pairs of opposing coils on the N pole side and the S pole side of the magnet, that is, using four pairs of opposing coils. Is described. Furthermore, it is described that higher order resonant frequencies allow for higher resonant frequency scanning.
  • Japanese Patent Laid-Open Publication No. 2010-9035 discloses an optical fiber scanning device including a set of multilayer thin film coils which generate magnetic fields in orthogonal orthogonal directions disposed on the cylindrical surface of a cylindrical tube. .
  • the coil for the X direction scan has the same configuration as the coil for the Y direction scan.
  • An embodiment of the present invention aims to provide an endoscope equipped with an optical fiber scanning device that performs efficient scan irradiation, and an optical fiber scanning device that performs efficient scan irradiation.
  • the optical fiber scanning device emits an illumination light from the tip, is an optical fiber cantilevered at a fixed end, and is magnetized in the direction of the optical axis of the optical fiber and disposed in the optical fiber
  • a plurality of opposing coils for applying a magnetic field to the magnet the plurality of opposing coils applying a first magnetic field in a first direction orthogonal to the optical axis to the magnet
  • a pair of second opposing coils for applying a second magnetic field in the first direction and in a second direction orthogonal to the optical axis to the magnet.
  • the plurality of opposing pairs such that the first opposing coil applies the first magnetic field to the front of the magnet and the second opposing coil applies the second magnetic field to the rear of the magnet
  • a coil is arranged.
  • the endoscope of another embodiment comprises an optical fiber scanning device at the distal end of the insertion portion, and the optical fiber scanning device emits illumination light from the distal end and is cantilevered at the fixed end.
  • a pair of first opposing coils for applying to the magnet a first magnetic field in a first direction orthogonal to the optical axis; and a second orthogonal coil orthogonal to the first direction and the optical axis
  • a pair of second opposing coils for applying a second magnetic field in a direction to the magnet, the first opposing coil applying the first magnetic field to the front of the magnets, and The plurality of opposing coils so that the second magnetic field is applied to the back of the magnet.
  • Opposing coils are disposed.
  • an optical fiber scanning device that performs efficient scan irradiation
  • an endoscope that provides an endoscope that performs efficient scan irradiation
  • optical fiber scanning device 1 of the present embodiment will be described with reference to the drawings.
  • the imaging system 90 including the optical fiber scanning device 1 includes the optical fiber scanning device 1, an optical fiber 19 for light reception, a light source unit 91, a detection unit 92, and a drive signal generation unit 93. , A control unit 94, a display unit 95, and an input unit 96.
  • the optical fiber scanning device 1 includes an optical fiber 10 for illumination, a magnet 20 disposed in the optical fiber 10, and a plurality of pairs of opposed coils 30, 40.
  • the plurality of sets of opposed coils consist of a set of first opposed coils 30 and a set of second opposed coils 40.
  • the drive signal generation unit 93 generates and outputs a drive signal for driving the first opposing coil 30 and the second opposing coil 40.
  • One set of first opposing coils 30 applies to the magnet 20 a first magnetic field M1 in a first direction (Y-axis direction) orthogonal to the optical axis O.
  • One pair of second opposing coils 40 applies a second magnetic field M2 to the magnet 20 in a first direction (Y-axis direction) and a second direction (X-axis direction) orthogonal to the optical axis O.
  • the optical fiber 10 is inserted into a through hole of a fiber holding member (ferrule) made of, for example, nickel, and from the fixed end 12 to the tip 11 is a vibrating portion that protrudes from the through hole. That is, in the optical fiber 10, the vibrating portion from the fixed end 12 to the tip 11 vibrates in a first direction (Y-axis direction) and a second direction (X-axis direction) orthogonal to the first direction. .
  • the first direction and the second direction are orthogonal to the optical axis direction (Z-axis direction). Needless to say, the first direction may be the X-axis direction, and the second direction may be the Y-axis direction.
  • the light source unit 91 combines lights from three laser light sources that emit CW (continuous wave) laser lights of three primary colors of red, green and blue, for example, and emits the combined light as white light.
  • a laser light source for example, a DPSS laser (semiconductor-excited solid state laser) or a laser diode can be used.
  • the configuration of the light source unit 91 is not limited to this, and one laser light source may be used, or a plurality of other light sources may be used.
  • the vibrating portion of the optical fiber 10 cantilevered at the fixed end 12 is oscillated by the first magnetic field M1 and the second magnetic field M2 applied to the magnet 20, and is emitted from the tip 11 of the optical fiber 10
  • the spot illumination light is two-dimensionally scanned to illuminate an object to be observed.
  • the reflected light of the observed object illuminated by the illumination light enters the detection unit 92 through the optical fiber 19 for detection.
  • the detection unit 92 separates the reflected light into spectral components and converts the light into electrical signals by photodiodes.
  • the control unit 94 synchronously controls the light source unit 91, the detection unit 92, and the drive signal generation unit 93, processes the electric signal output from the detection unit 92, synthesizes an image, and displays it on the display unit 95.
  • the user sets the imaging system 90 such as the scanning speed and the brightness of the display image via the input unit 96.
  • the light source unit 91, the detection unit 92, the drive signal generation unit 93, and the control unit 94 may be housed in the same housing, or may be housed in separate housings.
  • the optical fiber 10 guides the light from the light source unit 91 and emits illumination light from the tip 11 which is a free end.
  • the optical fiber scanning device 1 may include an illumination optical system configured to condense illumination light emitted by the optical fiber 10 on the surface of the object to be observed.
  • a condensing optical system may be disposed at the tip of the detection optical fiber 19.
  • the optical fiber scanning device 1 has a plurality of optical fibers 19 in order to obtain a sufficient amount of detected light.
  • the coil 31 and the coil 32 are disposed to face each other. Further, in the second opposing coil 40, the coil 41 and the coil 42 are disposed so as to face each other.
  • coil 31 etc. are spirals in which a conductor pattern disposed on a base such as a silicon substrate is wound in a plane. It is a planar coil.
  • the coil 31 or the like may be a multilayer planar coil in which two or more layers of spiral coils are connected via an insulating layer.
  • the flexible base on which the coil 31 and the like are disposed may be deformed into a tubular shape.
  • the coil 31 or the like may have a magnetic core made of a soft magnetic material.
  • the tube type magnet 20 has a through hole at the center, and the optical fiber 10 is inserted into the through hole and fixed by an adhesive (not shown).
  • the elongated magnet 20 is magnetized in the direction of the optical axis O of the optical fiber 10.
  • the magnet 20 is magnetized such that the front (the tip side of the optical fiber 10) is N pole and the rear (the fixed end side of the optical fiber 10) is S pole.
  • the first opposing coil 30 applies a first magnetic field M 1 to the front of the magnet 20.
  • the second opposing coil 40 applies a second magnetic field M 2 to the rear of the magnet 20.
  • the first opposing coil 30 is disposed closer to the tip end of the optical fiber 10 than the second opposing coil 40, and the distance between the centers of the two is substantially the same as the length of the magnet 20.
  • the magnet may be configured of a first magnet to which the first magnetic field M1 is applied and a second magnet to which the second magnetic field M2 is applied.
  • the first opposing coil 30 is disposed on the rear end side (fixed end side) of the second opposing coil 40, and the first opposing coil 30 is disposed on the rear side of the magnet 20 in the first magnetic field M1.
  • the second opposing coil 40 may apply a second magnetic field M 2 to the front of the magnet 20.
  • the combination of the vibration in the first direction and the vibration in the second direction causes the tip 11 of the optical fiber 10 to move in a predetermined scanning pattern in the XY plane.
  • the combination of the vibration pattern in the first direction (Y-axis scan) and the vibration pattern in the second direction (X-axis scan) makes the scan system be a spiral scan, raster scan, Lissajous scan, or the like.
  • FIG. 5 shows an example in which an image signal is acquired at the time of vibration to the positive side in the first direction (Y-axis direction), the image signal may be acquired at the time of vibration on the negative side or at both sides.
  • the display unit 95 is a horizontally long screen, the amplitude AX in the second direction (X-axis direction) is larger than the amplitude AY in the first direction (Y-axis direction).
  • the second magnetic field M2 generated by the second opposing coil 40 must be larger than the first magnetic field M1 generated by the first opposing coil 30.
  • the first facing distance DY which is the distance between the coil 31 and the coil 32 of the first facing coil 30, and the distance between the coil 41 of the second facing coil 40 and the coil 42
  • the facing distance DX of 2 is different. That is, the second facing distance DX is shorter than the first facing distance DY.
  • the magnetic field strength M at the center of the opposing coil, ie, at the magnet position, is (1 / D 2 ) for the opposing distance D.
  • the second opposing distance DX may be 80% of the first opposing distance DY.
  • the second magnetic field M2 is 1.56 times the first magnetic field M1.
  • the optical fiber scanning device 1 can easily generate the second magnetic field M2 larger than the first magnetic field M1, efficient scan irradiation can be performed.
  • two sets of opposing coils are generated at the front and rear of the magnet 20, that is, the opposing coil generating the magnetic field in the first direction and the magnetic field in the second direction. Opposing coils were disposed.
  • the coil 31 or the like which is a spiral flat coil, increases the magnetic field strength generated in proportion to the number of turns (the number of turns).
  • the number of turns In the case of a flat coil, in the case of the same pitch (conductor width / space width), increasing the number of turns increases the size of the coil, that is, the size in plan view (outside size / area). For this reason, in a conventional fiber scanning device in which two pairs of opposing coils are disposed at the same position with respect to the direction of the optical axis, the size of the two pairs of opposing coils disposed orthogonally is limited by the opposing distance It had been.
  • the optical fiber scanning device 1 only the first opposing coil 30 is provided with a coil for applying a magnetic field to the front of the magnet 20. Also, only the second opposing coil 40 is provided with a coil for applying a magnetic field to the rear of the magnet 20. That is, only one set of opposing coils is disposed at each position.
  • each of the first opposing coil 30 and the second opposing coil 40 may have a plurality of multilayer coils.
  • the first opposing coil 30 and the second opposing coil 40 may be a composite opposing coil composed of a plurality of pairs of opposing coils each applying a magnetic field in the same direction.
  • the facing distance DX of the second facing coil 40 may be smaller than the width LY of the first facing coil 30, and the facing distance DY of the first facing coil 30 is , And may be smaller than the width LX of the second opposing coil 40.
  • the first opposing coil 30 and the second opposing coil 40 partially cross each other. That is, the size of the two pairs of opposing coils 30 and 40 disposed orthogonally is not limited by the opposing distance.
  • the optical fiber scanning device 1 can set the number of turns of the first opposing coil 30 and the number of turns of the second opposing coil 40 to be different. Since the number of turns of the second opposing coil 40 (coils 41 and 42) can be larger than the number of turns of the first opposing coil 30 (coils 31 and 32), the optical fiber scanning device 1 performs efficient scanning irradiation. It can be carried out.
  • the optical fiber 10 vibrates primarily in the first direction (Y-axis direction).
  • the optical fiber 10 vibrates in a third order in the second direction (X-axis direction).
  • the first corresponding coil 30 (31, 32) applies a magnetic field to the front of the magnet 20.
  • the second opposing coil 40 (41, 42) applies a magnetic field to the rear of the magnet 20.
  • the optical fiber 10 that vibrates in a third order has, for example, the vibration node at three positions on the tip end side of the fixed end 12 and the position of the magnet 20 and the position of the first opposing coil 30 in plan view. That is, there is a point which does not vibrate. And, between the nodes of vibration, there is a vibration antinode with a large amplitude.
  • the amplitude A1X at the antinode of the oscillation closest to the fixed end 12 is, for example, 0.2 AX as compared to the amplitude AX of the tip 11, which is very small. Therefore, even if the second facing distance DX of the second facing coil 40 is reduced, there is no possibility that the oscillated optical fiber comes in contact with the coil.
  • the resonance frequency FRX in the second direction in which the third vibration occurs is, for example, 20 times the resonance frequency FRY in the first direction in which the first vibration vibrates, high-speed scanning is easy.
  • the optical fiber scanning device 1 can perform raster scanning particularly efficiently.
  • the optical fiber 10 may have a second-order vibration in which the second direction vibrates in a high-order vibration that facilitates high-speed scanning and easily increases the amplitude than the first direction in which the first-order vibration occurs. Furthermore, the optical fiber 10 may perform secondary vibration in the first direction and third vibration in the second direction, and of course may perform primary vibration in the first direction and the second direction. .
  • optical fiber scanning device 1A according to the modification of the first embodiment is similar to the optical fiber scanning device 1 and has the same effect.
  • the size of the first opposing coil 30 (31, 32) and the size of the second opposing coil 40A (41A, 42A) are different.
  • the first opposing coil 30 (31, 32) is a three-turn coil.
  • the second opposing coil 40A (41A, 42A) shown in FIG. 9B is a four-turn coil.
  • the outer dimension LX of the second opposing coil 40A (41A, 42A) is about 20% larger than the outer dimension LY of the first opposing coil 30 (31, 32).
  • the coils 31, 32, 41A and 42A have a square outer shape, they have the same outer size in the vertical direction and the outer size in the horizontal direction, LY or LX. However, it goes without saying that the coils 31, 32, 41A, 42A may have a rectangular outer shape.
  • the two pairs of opposing coils 30 and 40A disposed orthogonal to each other have different arrangement positions, so their sizes ) Is not limited by the opposing distance.
  • the second opposing coil 40A (41A, 42A) that generates a larger magnetic field is a large coil having a larger number of turns than the first opposing coil 30 (31, 32). More efficient scan irradiation can be performed than the fiber scanning device 1.
  • the drive signal generation unit 93 may set the current value of the drive signal to flow to the first opposing coil 30 and the current value of the drive signal to flow to the second opposing coil 40 so as to be different.
  • the upper limit of the current value of the drive signal allowed to flow through the planar coil is higher as the coil pattern width is wider.
  • the coil pattern width WB of the second opposing coil 40A (41A, 42A) is wider than the coil pattern width WA of the first opposing coil 30 (31, 32), even if the number of turns is the same, The size (outside size) of is different. Since the second opposing coil 40A (41A, 42A) with a wider coil pattern width WB can flow a drive signal with a higher current than the first opposing coil 30 (31, 32), a larger magnetic field can be obtained. It can occur.
  • the facing distance DX of the second facing coil 40A is smaller than the facing distance DY of the first facing coil 30.
  • the outside dimension LX is larger than the outside dimension LY, it goes without saying that even if the facing distance DX is the same as the facing distance DY, more efficient scan irradiation can be performed than in the conventional optical fiber scanning device. There is not.
  • more efficient raster scanning can be performed by causing the optical fiber 10 to perform primary vibration in the first direction and performing high-order vibration in the second direction.
  • an endoscope system 8 including the endoscope 9 of the present embodiment includes an endoscope 9, a processor 80, a light source device 81, and a monitor 82.
  • the processor 80 includes a light source unit 91, a detection unit 92, a drive signal generation unit 93, a control unit 94, and an input unit 96 of the imaging system 90 shown in FIG.
  • the light source device 81 corresponds to the light source unit 91
  • the monitor 82 corresponds to the display unit 95.
  • the endoscope 9 has an insertion portion 83, an operation portion 84, and a universal cord 85.
  • the insertion portion 83 is inserted into the body cavity of the subject, and the in-vivo image of the subject is captured and an image signal is output.
  • the insertion portion 83 includes a distal end portion 83A, a bendable curved portion 83B connected to the proximal end side of the distal end portion 83A, and a flexible portion 83C connected to the proximal end side of the curved portion 83B.
  • the endoscope 9 may be a rigid endoscope or may be industrial.
  • an operation portion 84 provided with various buttons for operating the endoscope 9 is disposed on the proximal end side of the insertion portion 83 of the endoscope 9.
  • the bending portion 83B is bent by the operation of the operation portion 84.
  • the endoscope 9 is a scanning endoscope having the optical fiber scanning device 1 (1A) at the distal end portion 83A of the insertion portion 83.
  • the diameter reduction of the distal end portion 83A is easier and less invasive than the endoscope including the imaging device portion.
  • the optical fiber scanning device 1 is not significantly degraded by radiation. And since the optical fiber scanning device 1 (1A) can perform efficient scan irradiation especially, the endoscope 9 is efficient.
  • optical fiber scanning device 8 endoscope system 9: endoscope 10: optical fiber 11: tip 12: fixed end 19: optical fiber 20: ⁇ ⁇ ⁇ Magnet 30, ... first opposing coil 31, 32 ... coil 40, 40A ... second opposing coil 41, 42 ... coil 80 ... processor 81 ... light source device 82 ... Monitor 83 ... Insertion part 83A ... Tip part 91 ... Light source part 92 ... Detection part 93 ... Drive signal generation part 94 ... Control part 95 ... Display part 96 ... .. Input section

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • General Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Biophysics (AREA)
  • Medical Informatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Molecular Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Endoscopes (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)

Abstract

L'objectif de la présente invention est de fournir un dispositif de balayage à fibre optique, afin d'exécuter une irradiation efficace de balayage, et un endoscope muni du dispositif de balayage à fibre optique, afin d'exécuter une irradiation efficace de balayage. Ce dispositif de balayage à fibre optique (1) est pourvu : d'une fibre optique (10), qui émet une lumière d'éclairage à partir d'une extrémité avant (11), et qui est portée en porte-à-faux à une extrémité fixe (12) ; d'un aimant (20), qui est magnétisé dans la direction d'un axe optique (O) de la fibre optique (10) et qui est disposé sur la fibre optique (10) ; de bobines opposées (30, 40), qui appliquent un champ magnétique à l'aimant (20), les bobines opposées (30, 40) comprenant un ensemble de premières bobines opposées (30) qui appliquent un premier champ magnétique (M1) dans une première direction (direction d'axe Y) à une partie avant de l'aimant (20), et un ensemble de secondes bobines opposées (40) qui appliquent un second champ magnétique (M2) dans une seconde direction (direction d'axe X) à une partie arrière de l'aimant (20).
PCT/JP2017/023250 2017-06-23 2017-06-23 Dispositif de balayage à fibre optique et endoscope WO2018235277A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/023250 WO2018235277A1 (fr) 2017-06-23 2017-06-23 Dispositif de balayage à fibre optique et endoscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/023250 WO2018235277A1 (fr) 2017-06-23 2017-06-23 Dispositif de balayage à fibre optique et endoscope

Publications (1)

Publication Number Publication Date
WO2018235277A1 true WO2018235277A1 (fr) 2018-12-27

Family

ID=64737756

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/023250 WO2018235277A1 (fr) 2017-06-23 2017-06-23 Dispositif de balayage à fibre optique et endoscope

Country Status (1)

Country Link
WO (1) WO2018235277A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110727072A (zh) * 2019-11-20 2020-01-24 杭州昱华科技有限公司 一种用于通信工程的光纤交接箱

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5727098A (en) * 1994-09-07 1998-03-10 Jacobson; Joseph M. Oscillating fiber optic display and imager
JP2008116922A (ja) * 2006-09-14 2008-05-22 Optiscan Pty Ltd 光ファイバ走査装置
WO2013031824A1 (fr) * 2011-09-02 2013-03-07 オリンパス株式会社 Dispositif de balayage optique et endoscope, microscope, projecteur équipés de celui-ci
WO2015037231A1 (fr) * 2013-09-11 2015-03-19 オリンパス株式会社 Dispositif de balayage optique
JP2015211761A (ja) * 2014-05-02 2015-11-26 オリンパス株式会社 光ファイバ走査装置、および光走査型内視鏡

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5727098A (en) * 1994-09-07 1998-03-10 Jacobson; Joseph M. Oscillating fiber optic display and imager
JP2008116922A (ja) * 2006-09-14 2008-05-22 Optiscan Pty Ltd 光ファイバ走査装置
WO2013031824A1 (fr) * 2011-09-02 2013-03-07 オリンパス株式会社 Dispositif de balayage optique et endoscope, microscope, projecteur équipés de celui-ci
WO2015037231A1 (fr) * 2013-09-11 2015-03-19 オリンパス株式会社 Dispositif de balayage optique
JP2015211761A (ja) * 2014-05-02 2015-11-26 オリンパス株式会社 光ファイバ走査装置、および光走査型内視鏡

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110727072A (zh) * 2019-11-20 2020-01-24 杭州昱华科技有限公司 一种用于通信工程的光纤交接箱
CN110727072B (zh) * 2019-11-20 2023-11-10 杭州昱华科技有限公司 一种用于通信工程的光纤交接箱

Similar Documents

Publication Publication Date Title
JP6057743B2 (ja) 光走査装置
JP6086674B2 (ja) 光走査装置
US10502947B2 (en) Optical fiber scanning apparatus and optical scanning type endoscope
JP6021575B2 (ja) 光ファイバ走査装置、光ファイバ走査装置の駆動方法および光走査型内視鏡
JP6071591B2 (ja) 光走査型内視鏡
JP6422872B2 (ja) 光走査装置
US11213188B2 (en) Optical fiber scanning device, optical scanning type endoscope and endoscope system
WO2018235277A1 (fr) Dispositif de balayage à fibre optique et endoscope
WO2016116963A1 (fr) Procédé et dispositif de balayage optique
JP6006039B2 (ja) 光走査型観察装置
CN105848554A (zh) 光扫描型图像形成装置和光扫描型图像形成方法
JP2015139537A (ja) 光走査型内視鏡
JP6006127B2 (ja) 光走査装置
US11061222B2 (en) Optical fiber scanning apparatus and endoscope
US9977236B2 (en) Optical scanning method and optical scanning apparatus
US20180153382A1 (en) Optical scanning endoscope and optical fiber scanning apparatus
JP2015211760A (ja) 光ファイバ走査装置、および光走査型内視鏡
WO2018122916A1 (fr) Dispositif de balayage de fibres optiques et endoscope
JP2018105970A (ja) 光ファイバ走査装置、内視鏡および光ファイバ走査装置の製造方法
JP2015128548A (ja) 光走査型内視鏡
JP6173035B2 (ja) 光走査デバイス、光走査型観察装置および光走査型画像表示装置
JP2015128549A (ja) 光走査型内視鏡

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17914743

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17914743

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP