WO2015083490A1 - Unité optique pour endoscope - Google Patents

Unité optique pour endoscope Download PDF

Info

Publication number
WO2015083490A1
WO2015083490A1 PCT/JP2014/079557 JP2014079557W WO2015083490A1 WO 2015083490 A1 WO2015083490 A1 WO 2015083490A1 JP 2014079557 W JP2014079557 W JP 2014079557W WO 2015083490 A1 WO2015083490 A1 WO 2015083490A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
lens frame
frame
light
sliding
Prior art date
Application number
PCT/JP2014/079557
Other languages
English (en)
Japanese (ja)
Inventor
山下　知暁
丈英 木林
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
Publication of WO2015083490A1 publication Critical patent/WO2015083490A1/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
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00096—Optical elements
    • 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
    • A61B1/00163—Optical arrangements
    • A61B1/00188—Optical arrangements with focusing or zooming features
    • 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
    • G02B23/2407—Optical details
    • G02B23/2423—Optical details of the distal end
    • G02B23/243—Objectives for endoscopes
    • G02B23/2438—Zoom objectives
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens

Definitions

  • the present invention relates to an endoscope optical unit capable of changing an observation magnification by moving a lens frame holding a lens.
  • endoscopes are widely used for observation, treatment, etc. of the human body (inside the body cavity) or for inspection, repair, etc. in industrial plant equipment.
  • a camera that can be changed to a focus function for a captured image and a zooming / tele function by moving a lens frame that holds a lens of the objective optical system in the direction of the photographing optical axis.
  • Such an optical system for moving the lens frame is disclosed in, for example, Japanese Patent Application Laid-Open No. 2009-25401.
  • the moving lens can be reliably moved to a position corresponding to a desired magnification at a viewer's desired speed.
  • the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide an endoscope optical unit capable of maintaining good slidability of a moving lens frame and preventing image quality deterioration due to flare. It is said.
  • An endoscope optical unit is an endoscope optical unit having an objective optical system capable of changing an observation magnification by moving a lens frame that holds a lens.
  • the optical system includes a first lens group and a second lens group, each of which is composed of at least one lens in order from the light incident direction, and a first lens that holds the first lens group.
  • a second lens frame having at least a part of a frame, holding the second lens group inside the cylinder, and having an outer sliding surface on at least a part of the outer peripheral surface of the cylinder; and the second A sliding holding frame that has an inner sliding surface that slidably holds the outer sliding surface of the lens frame, and that holds the second lens frame movably in the optical axis direction.
  • 2 lens frame and sliding holding frame prevent light reflection That black processing without performing, on the exit side of the first lens frame or one of the light having the second lens frame, an optical diaphragm defining the F value of the objective optical system is arranged.
  • reference numeral 1 denotes an endoscope apparatus.
  • the endoscope apparatus 2 includes an endoscope 2 and a peripheral device 200 that can perform normal observation to magnified observation on an observation site.
  • the endoscope 2 includes a main part including an operation unit 7, an insertion unit 6, a universal cord 8, and an endoscope connector (hereinafter simply referred to as a connector) 9.
  • the peripheral device 200 includes a light source device 3, a video processor 4, a connection cable 4 a, and a monitor 5.
  • the endoscope 2 and the peripheral device 200 are connected to each other by a connector 9.
  • the operation unit 7 of the endoscope 2 is provided with operation members such as a video switch 14, an air / water supply operation button 15, a suction operation button 16, a bending operation knob 17, a zoom lever 18, and the like.
  • operation members such as a video switch 14, an air / water supply operation button 15, a suction operation button 16, a bending operation knob 17, a zoom lever 18, and the like.
  • the gripping portion 7a and the treatment instrument insertion port 19 are disposed on the more distal end side.
  • the insertion portion 6 of the endoscope 2 includes a distal end portion 11, a bending portion 12, and a flexible tube portion 13.
  • the bending portion 12 is operated to bend by a bending operation knob 17 provided in the operation portion 7, and is disposed between the distal end portion 11 and the flexible tube portion 13.
  • a bending operation knob 17 provided in the operation portion 7, and is disposed between the distal end portion 11 and the flexible tube portion 13.
  • An objective lens 22 located on the tip side in the optical axis direction K is disposed.
  • a nozzle 23 that sprays a fluid such as water or air onto the surface of the objective lens 22 to the front end surface 11a and cleans the surface of the objective lens 22, for example, three illumination windows 24, and also serves as a treatment instrument insertion path.
  • a tip opening 25 of the suction line is provided.
  • the objective lens 22, the nozzle 23, the illumination window 24, and the tip opening 25 are provided in a frame that forms the tip portion 11.
  • an inclined portion 11 b is provided on the distal end surface 11 a of the distal end portion 11, and the nozzle 23 and the distal end opening 25 are provided at a position recessed toward the rear end side in the insertion direction with respect to the objective lens 22. In a plan view, they are arranged side by side on the same axis.
  • Gas and liquid are selectively ejected from the nozzle 23 by the button operation of the air / water supply operation button 15 of the operation unit 7.
  • the treatment instrument insertion port 19 to the distal end opening 25 are provided in the insertion section 6 by operating the suction operation button 16 of the operation section 7.
  • mucus in the body cavity, dirt removed from the surface of the objective lens 22 by the fluid supplied from the nozzle 23, and the like are collected.
  • a connector 9 is provided at the distal end of the universal cord 8 of the endoscope 2.
  • the connector 9 is connected to the light source device 3 of the peripheral device 200 via a light guide connector 9a.
  • the connector 9 is connected to a connection cable 4a for electrically connecting the light source device 3 to the video processor 4 via the video connector 9b.
  • a light guide (not shown) made of a fiber bundle extends from the light guide connector 9a, and 3 in the distal end portion 11 through the connector 9, the universal cord 8, the operation portion 7 and the insertion portion 6. A position close to the two illumination windows 24 is inserted.
  • the light guide transmits illumination light from the light source device 3 to the illumination window 24, whereby the illumination light can be spread and irradiated into the body cavity via the illumination window 24.
  • a signal cable 67 (see FIG. 3), which will be described later, is extended from the video connector 9b and is inserted through the connector 9, the universal cord 8, the operation unit 7 and the insertion unit 6, and the signal cable 67 (see FIG. 3).
  • the solid-state imaging device 61 of the imaging device 20 is electrically connected via a circuit board 66 (both see FIG. 3).
  • the signal cable 67 transmits the electrical signal of the image of the observation site in the body cavity imaged by the solid-state imaging device 61 of the imaging device 20 to the video processor 4 via the video connector 9b.
  • the video processor 4 converts the electrical signal from the solid-state image sensor 61 and sends a video signal to the monitor 5. As a result, an image of the observation site is displayed on the monitor 5.
  • the imaging device 20 provided in the distal end portion 11 will be described. As shown in FIG. 3, the imaging device 20 is disposed in a through-hole in the optical axis direction K formed in the distal end portion 11, and converts an optical image into an electrical signal with an optical unit 30 constituting an objective optical system.
  • the main part is comprised from the imaging unit 60 which performs.
  • the optical unit 30 includes first, second, and third lens frames 31, 35, and 40 that hold at least one lens in order from the distal end side, and further, the second lens frame 35 is connected to the optical axis.
  • a sliding holding frame 45 is provided that is slidably held in the direction K.
  • These lens frames 31, 35, 40 and the sliding holding frame 45 are made of, for example, stainless steel.
  • the sliding holding frame 45 is formed separately from the first lens frame 31 and the third lens frame 35 and is interposed between the first lens frame 31 and the first lens frame 31.
  • the third lens frame 35 is configured as a connection frame that connects and fixes the third lens frame 35.
  • the first lens frame 31 includes a front objective lens 22, a convex lens 32 behind the objective lens 22, and a cemented lens 33 configured by cementing two lenses into a first lens group.
  • a fixed lens frame As a fixed lens frame.
  • the first lens frame 31 is inserted and fitted to the tip opening side of the sliding holding frame 45 and fixed.
  • the second lens frame 35 forms a moving lens frame that holds the moving lens 36 as a second lens group and is slidably disposed along the optical axis direction K within the sliding holding frame 45. Yes.
  • the second lens frame is formed at least partially in a cylindrical shape that holds the moving lens 36, and an outer sliding surface in which the outer peripheral surface of the cylindrical shape slides with the inner sliding surface 45a of the sliding holding frame 45. 35a is formed.
  • an operating rod portion 35 b to which a later-described moving shaft 50 is connected is integrally formed at the lower portion of the second lens frame 35.
  • the operation rod portion 35b is provided with an adhesive hole 35c that communicates from the outside of the operation rod portion 35b to the connecting portion with the moving shaft 50.
  • the third lens frame 40 is a fixed lens frame that holds the convex lens 41 on the light incident side as a third lens group and holds the filters 42 and 43 behind the convex lens 41.
  • the outer peripheral rear end is fitted and fixed.
  • a front end portion of the element frame 62 that holds the solid-state image sensor 61 of the imaging unit 60 is inserted and fixed to the rear end portion of the third lens frame 40.
  • a concave portion 40c is provided in a portion of the third lens frame 40 where the element frame 62 is inserted.
  • the recess 40 c is an adhesive pool for reducing excess adhesive from protruding from a portion where the element frame 62 is inserted, and particularly flowing into the imaging device 20.
  • the outer sliding surface 35 a of the second lens frame 35 is slidably held by the sliding holding frame 45 interposed between the first lens frame 31 and the third lens frame 40.
  • a cutout portion 45b that constitutes a guide groove is provided on a part of the inner sliding surface 45a so that the operation rod portion 35b of the second lens frame 35 can advance and retreat.
  • the sliding holding frame 45 is integrally formed with a regulating contact portion 45c for regulating the forward movement of the operating rod portion 35b of the second lens frame 35 extending from the lower direction of the tip portion.
  • the regulation abutting portion 45 c constitutes a front wall portion of the cutout portion 45 b, and a through hole for inserting the moving shaft 50 is provided in the front wall portion and is closed by the cap 51.
  • the cap 51 is disposed such that the distal end of the cap 51 is shifted from the distal end of the restriction contact portion 45c toward the proximal end side. Thereby, even if the adhesive for fixing the cap 51 protrudes from the front end side of the cap 51, it is reduced from protruding from the front end side of the restricting contact portion 45c to the front end side.
  • the moving shaft 50 is an operation shaft for moving the second lens frame 35 forward and backward along the optical axis direction K.
  • the moving shaft 50 is interposed in a guide flange 40 a that extends downward from the lower portion of the third lens frame 40.
  • the shaft holder 52 is inserted and supported. Within this shaft holder 52, a moving wire 53 is fixed to the rear end portion of the moving shaft 50, and this moving wire 53 is inserted through a shaft pipe 54 connected to the shaft holder 52.
  • the shaft holder 52 is bonded and fixed by a fitting portion with the guide flange portion 40 a and an adhesive portion 100 between the element frame 62.
  • the moving wire 53 is pulled and relaxed via an actuator (not shown) by operating the zoom lever 18 of the operation unit 7, and the second lens frame 35 is moved along the optical axis direction K in the sliding holding frame 45. Moved forward and backward. At this time, the position at which the operating collar portion 35b of the second lens frame 35 abuts against the regulating abutting portion 45c of the sliding holding frame 45 is the minimum magnification of the optical system, and the opposite surface of the operating collar portion 35b is cut away. The position that contacts the tip of the third lens frame 40 in the portion 45b is the maximum magnification of the optical system.
  • the operating rod portion 35b of the second lens frame 35 is formed integrally with the outer sliding surface 35a, the perpendicularity to the outer sliding surface 35a can be manufactured with high accuracy.
  • the regulation abutting portion 45c of the sliding holding frame 45 is also formed integrally with the inner sliding surface 45a, so that the perpendicularity to the inner sliding surface 45a can be manufactured with high accuracy. it can.
  • the tilt of the second lens frame 35 when moving in the optical axis direction can be suppressed and smoothly slid.
  • the optical system is fixed at the minimum magnification, that is, the second lens frame 35.
  • the operating rod part 35b is brought into contact with the regulating contact part 45c of the sliding holding frame 45, the variation in posture of the second lens frame 35 for each individual can be greatly reduced.
  • the regulation contact portion 45c of the sliding holding frame 45 and the guide flange portion 40a of the third lens frame 40 are formed in the same shape, and the outer peripheral side is covered with a cover 55 fixed with an adhesive. .
  • the regulation abutting portion 45 c of the sliding holding frame 45 and the guide flange portion 40 a of the third lens frame 40 are both vertically perpendicular to the optical axis direction K.
  • the cross-sectional shape in the direction is formed in an approximately oval shape, and the outer peripheral surfaces of the regulating contact portion 45c and the guide flange portion 40a are covered with the cover 55 having a U-shaped vertical cross-sectional shape, and the adhesive is filled. Is fixed.
  • the regulation abutting portion 45c and the guide flange portion 40a are the wall portion 45d on the base side of the regulation abutment portion 45c and the wall on the base side of the guide collar portion 40a.
  • groove portions 56 each having a concave portion in the vertical direction are provided on the ridge line portions which are the lower ends of the regulation contact portion 45c and the guide flange portion 40a.
  • an adhesive filled in the gap with the cover 55 can be stored, and the protrusion of the adhesive to the outside is reduced to ensure liquid-tightness and to improve the assembly strength of each member.
  • the outer shape of the fixed portion of each of the restriction contact portion 45c of the sliding holding frame 45 and the wall portion 40b of the third lens frame 40 and the cover 55 is the same shape and is continuously provided. Yes. Thereby, when the cover 55 is fixed to each, it can arrange
  • the groove 56 may be provided on the cover 55 side. Also, a protrusion that abuts the tip end of the guide flange 40a is provided on the inner surface side of the cover 55, and a ridge line portion that is the lower end of the regulation abutting portion 45c extends downward, and the abutment portion that abuts the tip of the cover 55 It is also possible to reduce the protrusion of the adhesive material by providing, for example.
  • a cover glass 63 for centering is fixed to the rear end of the element frame 62 joined to the third lens frame 40, and a CCD, CMOS or the like is formed on the rear end surface of the cover glass 63.
  • a glass lid 64 that protects the imaging surface of the solid-state imaging device 61 is attached. The glass lid 64 is bonded and fixed to the imaging surface of the solid-state imaging device 61 with an ultraviolet curable adhesive or the like.
  • the tip of the shield frame 65 is fixed to the outer periphery of the element frame 62, and a circuit board 66 composed of a rigid substrate or a flexible substrate is disposed in the shield frame 65. Electrically connected.
  • the circuit board 66 is electrically connected to lead pins 67 a of a plurality of lead wires constituting the signal cable 67.
  • a coating member 68 that is a heat-shrinkable tube that integrally covers up to the distal end portion of the signal cable 67 is provided on the outer periphery of the shield frame 65, and in a space formed by the shield frame 65 and the coating member 68. It is filled with a protective agent such as an adhesive.
  • the imaging device 20 described above appropriately sets the target of the black processing for preventing the reflection of light in order to simultaneously realize the slidability of the second lens frame 35 of the optical unit 30 and the flare prevention of the observation image.
  • members that prevent unnecessary light from entering the solid-state imaging device 61 are appropriately arranged.
  • the first lens frame 31 and the third lens frame 40 which are fixed lens frames are subjected to black processing on the entire frame.
  • the second lens frame 35 which is a moving lens frame, and the sliding holding frame 45 are not blackened at all, and the sliding property between the outer sliding surface 35a and the inner sliding surface 45a is good. Try to keep on. Note that, on the imaging unit 60 side, it is assumed that the element frame 62 has been subjected to black processing.
  • the black treatment can be performed by a known method such as a treatment with a black dyeing solution, a plating treatment with black nickel or black alumite, or a surface treatment with a black oxide film.
  • a black treatment can prevent unnecessary light reflection
  • the thickness of the black treatment layer is precisely controlled to remove the light. It becomes difficult to keep the clearance between the sliding surface 35a and the inner sliding surface 45a optimal.
  • an optical diaphragm 70 that determines an F value of an objective optical system including a first lens group, a second lens group, and a third lens group is disposed.
  • the optical diaphragm 70 stops the light beam emitted from the first lens frame 31, passes through the convex lens 41 and the filters 42 and 43 of the third lens frame 40 from the moving lens 36 of the second lens frame 35, and performs solid-state imaging.
  • the height of light incident on the element 61 can be lowered, light unnecessary for imaging can be reduced, and flare can be prevented.
  • the optical diaphragm 70 is provided in the immediate vicinity of the inner sliding surface 45a of the sliding holding frame 45. Furthermore, the optical aperture that determines the F value of the objective optical system has a smaller aperture diameter than the aperture member that simply prevents flare from occurring. Therefore, a sufficient separation distance can be provided between the light that has passed through the aperture hole of the optical diaphragm 70 and the inner sliding surface 45a, and unnecessary light to the sliding holding frame 45 can be sufficiently shielded, and flare can be prevented. Can be prevented.
  • the sliding holding frame 45 having the second lens frame 35 that is a moving lens frame and the inner sliding surface 45a with respect to the outer sliding surface 35a of the second lens frame 35.
  • the black treatment is not performed at all, thereby preventing the deterioration of the slidability and improving the operability when changing the observation magnification.
  • the optical aperture 70 that determines the F value of the objective optical system is used to block unnecessary light to the second lens frame 35 and the sliding holding frame 45 from which black processing is omitted, and is unnecessary for the solid-state image sensor 61. By suppressing the incidence of various light rays, flare of the observed image is prevented and image quality is improved.
  • the third lens frame 40 and the sliding holding frame 45 shown in FIG. 3 are replaced with a third lens frame 40_1 and a sliding holding frame 45_1, respectively.
  • the third lens frame 40_1 holds the convex lens 41_1 and the filter 42_1, and is configured such that the distal end side is fitted to the first lens frame 31 to be connected and fixed, and the sliding holding frame of FIG.
  • the structure corresponding to the notch part 45b, the regulation contact part 45c, and the guide collar part 40a of the third lens frame 40 is provided as a notch part 40_1a, a regulation contact part 40_1b, and a guide collar part 40_1c.
  • the rear end side of the third lens frame 40_1 is configured to fit and fix the element frame 62 of the imaging unit 60 on the inner peripheral surface.
  • the sliding holding frame 45_1 is formed in a cylindrical shape that is housed in the third lens frame 40_1.
  • the sliding holding frame 45_1 forms an inner sliding surface 45_1a in which the cylindrical inner surface slides with the outer sliding surface 35a of the second lens frame 35.
  • a cutout portion through which the operation collar portion 35b of the second lens frame 35 is inserted is provided in the optical axis direction.

Abstract

La présente unité optique permet, sans traitement de noircissement d'un deuxième châssis de lentille (35) et d'un châssis de rétention du coulissement (45), de garantir de bonnes propriétés de coulissement entre une surface de coulissement extérieure (35a) et une surface de coulissement intérieure (45a). Pour éviter l'apparition de reflets dus à la réflexion de lumière indésirable, une ouverture optique (70) permettant de régler le nombre d'ouverture d'un système optique objet est agencée du côté de la sortie d'un premier châssis de lentille (31), qui est positionné du côté de l'entrée du second châssis de lentille (35). Les faisceaux lumineux sortant du premier châssis de lentille (31) sont réduits par l'ouverture optique (70), cela permettant de réduire la hauteur des rayons de la lumière sortant de la lentille mobile (36) du second châssis de lentille (35), passent à travers une lentille convexe (41) et des filtres (42, 43) d'un troisième châssis de lentille (40) et sont incidents sur un élément de formation d'image à semi-conducteur (61), cela permettant d'éviter l'apparition de reflets grâce à la réduction de la lumière n'intervenant pas dans la formation d'image.
PCT/JP2014/079557 2013-12-03 2014-11-07 Unité optique pour endoscope WO2015083490A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013250453 2013-12-03
JP2013-250453 2013-12-03

Publications (1)

Publication Number Publication Date
WO2015083490A1 true WO2015083490A1 (fr) 2015-06-11

Family

ID=53273261

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/079557 WO2015083490A1 (fr) 2013-12-03 2014-11-07 Unité optique pour endoscope

Country Status (1)

Country Link
WO (1) WO2015083490A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106999013A (zh) * 2015-08-05 2017-08-01 奥林巴斯株式会社 摄像单元和内窥镜
WO2019012794A1 (fr) * 2017-07-12 2019-01-17 オリンパス株式会社 Unité de capture d'image
WO2022003799A1 (fr) * 2020-06-29 2022-01-06 オリンパス株式会社 Unité optique, unité d'imagerie et endoscope

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012063816A1 (fr) * 2010-11-09 2012-05-18 オリンパスメディカルシステムズ株式会社 Appareil d'imagerie pour endoscopes
WO2012137739A1 (fr) * 2011-04-05 2012-10-11 オリンパスメディカルシステムズ株式会社 Appareil d'imagerie

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012063816A1 (fr) * 2010-11-09 2012-05-18 オリンパスメディカルシステムズ株式会社 Appareil d'imagerie pour endoscopes
WO2012137739A1 (fr) * 2011-04-05 2012-10-11 オリンパスメディカルシステムズ株式会社 Appareil d'imagerie

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106999013A (zh) * 2015-08-05 2017-08-01 奥林巴斯株式会社 摄像单元和内窥镜
EP3225148A4 (fr) * 2015-08-05 2018-08-08 Olympus Corporation Unité d'imagerie et endoscope
WO2019012794A1 (fr) * 2017-07-12 2019-01-17 オリンパス株式会社 Unité de capture d'image
CN111107776A (zh) * 2017-07-12 2020-05-05 奥林巴斯株式会社 摄像单元
JPWO2019012794A1 (ja) * 2017-07-12 2020-07-16 オリンパス株式会社 内視鏡及び撮像ユニット
US10983331B2 (en) 2017-07-12 2021-04-20 Olympus Corporation Endoscope and image pickup unit
CN111107776B (zh) * 2017-07-12 2022-06-14 奥林巴斯株式会社 内窥镜和摄像单元
WO2022003799A1 (fr) * 2020-06-29 2022-01-06 オリンパス株式会社 Unité optique, unité d'imagerie et endoscope

Similar Documents

Publication Publication Date Title
WO2011027594A1 (fr) Unité de capture d'image
US8602979B2 (en) Electronic endoscope having front-view and side-view image capturing
US5993381A (en) Operating unit for an endoscope
JP4668831B2 (ja) 内視鏡
CN111107776B (zh) 内窥镜和摄像单元
JP5138125B2 (ja) 内視鏡撮像ユニットの組立方法及び内視鏡
JPH11313795A (ja) 内視鏡
WO2015083490A1 (fr) Unité optique pour endoscope
JP2015112336A (ja) 内視鏡システム
US9753269B2 (en) Endoscope
WO2017038149A1 (fr) Unité de système optique d'observation, unité d'imagerie et endoscope
JP2000089136A (ja) 内視鏡の光学系駆動機構
JPH1176155A (ja) 内視鏡
JP6437878B2 (ja) 内視鏡の観察光学系ユニット及び内視鏡装置
WO2017221458A1 (fr) Appareil optique
WO2019155665A1 (fr) Système optique d'imagerie endoscopique et dispositif endoscopique
CN112312820A (zh) 内窥镜
JP6062128B1 (ja) 観察光学系ユニット、撮像ユニット、及び、内視鏡
JP5238294B2 (ja) 内視鏡
CN111031891B (zh) 内窥镜
JP2018081270A (ja) 光学装置及び内視鏡
JP2016202830A (ja) 内視鏡先端部および内視鏡
JPH0636085B2 (ja) 内視鏡
JP3380141B2 (ja) 内視鏡の対物駆動機構
JP3380140B2 (ja) 内視鏡の対物駆動機構

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: 14868014

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: 14868014

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP