EP3694389A1 - Endoscope stéréoscopique - Google Patents

Endoscope stéréoscopique

Info

Publication number
EP3694389A1
EP3694389A1 EP18782941.1A EP18782941A EP3694389A1 EP 3694389 A1 EP3694389 A1 EP 3694389A1 EP 18782941 A EP18782941 A EP 18782941A EP 3694389 A1 EP3694389 A1 EP 3694389A1
Authority
EP
European Patent Office
Prior art keywords
stereo endoscope
section
objective
distal
beam paths
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP18782941.1A
Other languages
German (de)
English (en)
Inventor
Jianxin Zhao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olympus Winter and Ibe GmbH
Original Assignee
Olympus Winter and Ibe GmbH
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 Olympus Winter and Ibe GmbH filed Critical Olympus Winter and Ibe GmbH
Publication of EP3694389A1 publication Critical patent/EP3694389A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • G02B23/2415—Stereoscopic endoscopes
    • 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
    • A61B1/00193—Optical arrangements adapted for stereoscopic vision
    • 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
    • A61B1/00174—Optical arrangements characterised by the viewing angles
    • A61B1/00179—Optical arrangements characterised by the viewing angles for off-axis viewing
    • 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
    • A61B1/04—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 combined with photographic or television appliances
    • A61B1/05—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 combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
    • 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

Definitions

  • the invention relates to a stereo endoscope having a shaft and an objective arranged at the distal end of the shaft, the objective comprising: a distal objective section in which beam paths of a right partial image and a left partial image extend through common optical components; a proximal one
  • Lens section in which the beam paths of the right field and the left field are separated by separate optical components; and a transition section in which at an angle to each other from the distal lens section
  • transition section comprises a spreading arrangement in order to increase the distance of the beam paths of the right and left partial image to each other.
  • Endoscopes are used to view hard-to-reach areas, such as body cavities of a human or animal patient or the interior of technical facilities. They have for this purpose a slender shaft, which is introduced through an existing or created for the investigation opening in the cavity of interest. At the distal end of the shaft is a lens for taking an image of objects located in the cavity.
  • Stereo endoscopes have increasingly been used for some time now, ie endoscopes which record two partial images at slightly different viewing angles. These sub-images are then displayed using appropriate engineering means such that a user perceives a three-dimensional image of an observed object.
  • the objective of stereo endoscopes usually has a distal lens section, in which beams of a right partial image and a left partial image pass through common optical components.
  • This construction makes it possible to manufacture the optical components of the distal lens section with a large diameter, which is required for a high image resolution, in particular with a large opening angle.
  • the beams of the right field and the left field emerge at an angle to each other. As for forwarding the
  • Beam bundle a parallel course is technically easier to implement, adjoins the distal lens section a transition section, in which the radiation beams are aligned parallel to each other.
  • the transition section usually includes a positive lens.
  • Partial images are now displayed in a proximal lens section to the respective partial images.
  • the beams of the right field and the left field are separated by separate optical components.
  • a corresponding objective is described in DE102013215422A1.
  • each beam In order to avoid a trimming of the beams in the two reflections, each beam must be offset at least by a distance to the side, which corresponds approximately to the diameter of the beam. However, the resulting minimal spread is often greater than that for placement of the optical components of the proximal
  • a stereo endoscope having a shaft and an objective arranged at the distal end of the shaft, wherein the objective comprises: a distal objective section in which beam paths of a right partial image and a left partial image extend through common optical components; a proximal lens section in which the beam paths of the right field and the left field are through separate optical components; and a transition section in which the beam paths of the right and left partial image emerging at an angle to one another from the distal objective section are aligned parallel to one another; and wherein the transition section comprises a spreading arrangement in order to increase the distance of the beam paths of the right and left partial image to one another; and which is further developed in that the spreading arrangement is arranged to spread the beam paths of the right and left partial image asymmetrically to an optical axis of the distal lens section.
  • an asymmetric spread is understood to mean a spread in which one of the two beams is displaced by a first distance to the side, and in which the other beam is not displaced to the side, or is displaced by a second distance to the side, which is smaller than the first track.
  • the spreading arrangement may comprise a first prism arrangement in which one of the beam paths of the right or left field is offset in parallel by multiple reflection.
  • Prism arrangement may include, for example, two half-cube prisms or a rhomboid prism.
  • the spreading arrangement further comprises a Planglaselement through which the not extending through the first prism array beam path extends.
  • the longer beam path can be compensated by the prism arrangement, so that both beam bundles cover approximately the same optical path.
  • the optical path length through the plane glass element can preferably correspond approximately to the optical path length through the first prism arrangement.
  • the distal objective section comprises a second prism arrangement for processing a viewing direction of the stereo endoscope.
  • Stereo endoscopes are offered with different viewing directions.
  • an indication of the viewing direction is usually an angle between the viewing direction of
  • Stereo endoscope and a longitudinal axis of the stereo endoscope indicated While straight-looking stereoscopic endoscopes with a viewing direction of 0 ° have a simpler structure, stereoscopic endoscopes with a viewing direction deviating from 0 ° are more suitable for many applications, since a larger area can be examined here by rotating the stereo endoscope about the longitudinal axis of the shaft.
  • the distal objective section and the proximal objective section can be made rotatable relative to each other about the optical axis of the distal objective section. It is thereby possible to rotate the distal lens section with the second prism arrangement and thus to change the viewing direction of the stereo endoscope, without one due to the position of the proximal one Lens section fixed to change the horizon orientation of the recorded image.
  • the stereo endoscope is a video stereo endoscope, and the right and left subpictures are each imaged onto a separate imager.
  • at least one of the two image sensors can be aligned parallel to a longitudinal axis of the stereo endoscope.
  • An alignment parallel to a longitudinal axis of the stereo endoscope is understood to mean an alignment of the image sensor or imagers, in which an image plane of the image sensor (s) is parallel to the image sensor
  • the proximal objective section of a stereo endoscope can comprise at least a third prism arrangement with which the beam path of the left partial image and / or the optical path of the right partial image is deflected by 90 °.
  • Fig. 5 shows a lens of another stereo endoscope according to the invention.
  • FIG. 1 shows a stereo endoscope 1 with a main body 2 and an elongate shaft 3.
  • an objective 4 is arranged in the distal section of the shaft 3.
  • the shaft 3 is closed at the distal end by a window 5.
  • a supply and signal cable 8 is used to connect the stereo endoscope 1 with a light source, not shown, and also not shown image processing device.
  • FIG. 2 shows an objective 100 of a stereo endoscope.
  • the objective 100 comprises a distal objective section A, a transition section B and a proximal objective section C.
  • the distal objective section A comprises only a single negative lens 101.
  • the transition section B comprises a positive lens 102 and a diaphragm 103 with apertures 104, 105 for a beam of the right partial image and a radiation beam of the left partial image.
  • the transition section B Adjoining the transition section B is the proximal objective section C, which comprises two lens systems 108, 107 arranged parallel to one another. Imagers 108, 109 transform the images imaged by objective 100 into electrical signals for further processing. On the distal side, the lens 100 is closed by a window 10.
  • FIG. 3 shows an objective 200.
  • the lens corresponds in many aspects to the objective 100 of FIG. 2, corresponding components are therefore provided with a reference number increased by 100 and will not be described again.
  • the transition section B of the objective 200 comprises a spreading arrangement of two rhomboid prisms 220, 221, which comprise the beams of the right field and of the left field by reflection twice
  • the rhomboid prisms 220, 211 must displace the beams at least one distance laterally, which corresponds to the diameter of the beam and thus approximately the diameter of the apertures 204, 205. It can be seen that the
  • Lens systems 208,207 are pulled apart very far by this strong spread, so that the lens 200 in the proximal section requires a lot of space.
  • FIG. 4 shows an objective 300 of a stereo endoscope, which is shown according to an embodiment of the invention.
  • the objective 300 in turn has a distal objective section A, a
  • Lens section A comprises a negative lens 301 and a prism arrangement 302 three prisms 303,304,305, through which the viewing direction of the stereo endoscope is deflected.
  • the transition section B comprises a positive lens 308 and aperture 307 with
  • the transition section B comprises an asymmetrical spreading arrangement with a rhomboid prism 310 and a plane glass block 31 1. While the rhomboid prism 310 laterally displaces the beam of one field by multiple reflection, the other beam just passes through the plane glass block 31 1. The optical path length of both beams remains approximately the same.
  • the plane glass block 31 1 can be produced from one or more glass materials which have a higher refractive index than the material of the rhomboid prism 310.
  • the proximal objective section C in turn comprises two parallel lens systems 312, 313, at the proximal end of which image sensors 314, 315 are arranged.
  • the objective 300 is closed off by a window 318, which in the present example is designed as a spherically curved window.
  • the distal objective section A can be rotated relative to the proximal objective section C. This rotates the
  • the axis of rotation lies in the center axis of the positive lens 306.
  • the transition section B remains complete or only the diaphragm 307 fixed relative to the proximal lens section C.
  • the division of the lens sections A, B, C is based on the function of the respective optical components of the sections.
  • the optical components may be combined into modules, which differ from said lens sections A, B, C.
  • the components 301, 303, 305 of the objective section A shown in FIG. 4 together with the component 306 of the objective section B, can be combined to form a distal objective assembly
  • transition assembly B' includes only the components 307, 310, 31 1.
  • Other combinations of components to modules are also conceivable and possible.
  • FIGS. 5a and 5b a proximal objective section of a variant of FIG.
  • Stereo endoscope shown in two views. The remaining lens sections are designed according to FIG. 4 and are not shown for the sake of clarity.
  • FIG. 5a shows a view from a direction which is perpendicular to the horizontal plane of the objective and is indicated by the arrows Y in FIG.
  • FIG. 5b shows a
  • the proximal objective section consists of two parallel lens systems 401, 402, of which only the lens system 401 is visible in FIG. 5b. Unlike in FIG. 4, the lens systems 401, 402 are adjoined in each case by a half-cube prism 403, 404, which deflects a radiation beam passing through the respective lens system 401, 402 through reflection by 90 °. At the exit side of the half cube prisms 403, 404 are
  • Image pickup 405,408 arranged.
  • the half-cube prism 403 is concealed by the image receptor 405.
  • the image receptor 406 is hidden by the half-cube prism 404.
  • the image sensors 405, 406 can be mounted in a particularly space-saving manner.
  • a control section 406 'of the image sensors 405, 406 can be mounted in a particularly space-saving manner.
  • Image receptor 408 which carries no photosensitive elements, aligned so that it takes up little space.
  • the window 316 may be designed as a plane window.
  • the illustrated lens systems with other numbers, types and / or

Landscapes

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

Abstract

L'invention concerne un endoscope stéréoscopique, présentant une tige (3) et un objectif (4, 300) disposé en l'extrémité distale de la tige (3), l'objectif (4, 300) présentant les éléments suivants : une section distale d'objectif (A), dans laquelle s'étendent les trajets optiques d'une image partielle droite et d'une image partielle gauche à travers des composants optiques communs (301,303, 304, 305) ; une section proximale d'objectif (C), dans laquelle les trajets optiques de l'image partielle droite et de l'image partielle gauche s'étendent à travers des composants optiques séparés ; et une section de transition (B), dans laquelle les trajets optiques sortant de la section distale d'objectif (A) avec un angle l'un par rapport à l'autre de l'image partielle droite et de l'image partielle gauche sont orientés de manière parallèle l'un à l'autre ; et la section de transition comprenant un dispositif d'écartement (310, 311) pour augmenter la distance des trajets optiques de l'image partielle droite et de l'image partielle gauche l'un par rapport à l'autre. Le dispositif d'écartement (310, 311) est conçu pour écarter les trajets optiques de l'image partielle droite et de l'image partielle gauche de manière asymétrique par rapport à un axe optique de la section distale d'objectif (A).
EP18782941.1A 2017-10-09 2018-10-01 Endoscope stéréoscopique Withdrawn EP3694389A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017123320.2A DE102017123320A1 (de) 2017-10-09 2017-10-09 Stereoendoskop
PCT/EP2018/076668 WO2019072615A1 (fr) 2017-10-09 2018-10-01 Endoscope stéréoscopique

Publications (1)

Publication Number Publication Date
EP3694389A1 true EP3694389A1 (fr) 2020-08-19

Family

ID=63794465

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18782941.1A Withdrawn EP3694389A1 (fr) 2017-10-09 2018-10-01 Endoscope stéréoscopique

Country Status (6)

Country Link
US (1) US11224333B2 (fr)
EP (1) EP3694389A1 (fr)
JP (1) JP6876870B2 (fr)
CN (1) CN111093460A (fr)
DE (1) DE102017123320A1 (fr)
WO (1) WO2019072615A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016214272A1 (de) * 2016-08-02 2018-02-22 Olympus Winter & Ibe Gmbh Optisches System eines Stereo-Videoendoskops mit seitlicher Blickrichtung sowie Verfahren zum Herstellen desselben
DE102017123320A1 (de) * 2017-10-09 2019-04-11 Olympus Winter & Ibe Gmbh Stereoendoskop
JP7475248B2 (ja) 2020-09-23 2024-04-26 株式会社トプコン ステレオ撮影装置及び眼科装置
CN112731647A (zh) * 2020-12-31 2021-04-30 青岛海泰新光科技股份有限公司 一种使用常规内窥镜实现三维成像的装置

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4832003A (en) * 1986-09-12 1989-05-23 Olympus Optical Co., Ltd. Electronic endoscope tip
US5005957A (en) * 1988-09-07 1991-04-09 Olympus Optical Co., Ltd. Objective lens system for endoscopes
FR2651668B1 (fr) 1989-09-12 1991-12-27 Leon Claude Ensemble microscope-endoscope utile notamment en chirurgie.
DE4217889A1 (de) * 1992-05-29 1993-12-02 Wolf Gmbh Richard Endoskopoptik
US5459605A (en) * 1992-12-17 1995-10-17 Paul S. Kempf 3-D endoscope apparatus
US5588948A (en) * 1993-02-17 1996-12-31 Olympus Optical Co. Ltd. Stereoscopic endoscope
US5743846A (en) * 1994-03-17 1998-04-28 Olympus Optical Co., Ltd. Stereoscopic endoscope objective lens system having a plurality of front lens groups and one common rear lens group
DE19532400B4 (de) * 1994-09-08 2005-08-04 Carl Zeiss Stereoendoskop mit abgewinkelter Blickrichtung
JP3580869B2 (ja) * 1994-09-13 2004-10-27 オリンパス株式会社 立体視内視鏡
US5976071A (en) * 1994-11-29 1999-11-02 Asahi Kogaku Kogyo Kabushiki Kaisha Stereoscopic endoscope
DE59600739D1 (de) * 1995-02-03 1998-12-03 Leica Mikroskopie Sys Ag Stereomikroskop
US6104426A (en) * 1996-03-23 2000-08-15 Street; Graham S. B. Stereo-endoscope
JP4274602B2 (ja) * 1998-09-11 2009-06-10 オリンパス株式会社 対物光学系
JP3765235B2 (ja) * 2001-02-16 2006-04-12 日本電気株式会社 光ディスク装置
US7101334B2 (en) * 2001-10-31 2006-09-05 Olympus Corporation Optical observation device and 3-D image input optical system therefor
JP4448339B2 (ja) * 2004-01-15 2010-04-07 Ｈｏｙａ株式会社 立体視硬性鏡用光学系
DE102005000915A1 (de) * 2005-01-06 2006-07-20 Leica Microsystems Cms Gmbh Vorrichtung zur multifokalen konfokalen mirkoskopischen Bestimmung der räumlichen Verteilung und zur multifokalen Fluktuationsanalyse von fluoreszenten Molekülen und Strukturen mit spektral flexibler Detektion
DE102006036300B4 (de) * 2005-08-26 2007-11-29 Leica Microsystems (Schweiz) Ag Hochleistungs-Stereomikroskop
CN202173382U (zh) * 2011-07-08 2012-03-28 蓝莫德(天津)科学仪器有限公司 双目单通道一体式窥镜
DE202012004290U1 (de) * 2012-04-27 2012-05-23 Schölly Fiberoptic GmbH Endoskop
KR101656239B1 (ko) * 2012-04-27 2016-09-09 주식회사 고영테크놀러지 스테레오 현미경
JP5965726B2 (ja) * 2012-05-24 2016-08-10 オリンパス株式会社 立体視内視鏡装置
DE102013215422B4 (de) 2013-08-06 2022-02-24 Olympus Winter & Ibe Gmbh Optisches System eines Stereo-Videoendoskops mit seitlicher Blickrichtung und Stereo-Videoendoskop mit seitlicher Blickrichtung
DE102013217449A1 (de) 2013-09-02 2015-03-19 Olympus Winter & Ibe Gmbh Prismeneinheit und Stereo-Videoendoskop mit verstellbarer Blickrichtung
CN203539310U (zh) * 2013-10-31 2014-04-16 天津博朗科技发展有限公司 一种单路转像共用立体内窥镜
US20170202439A1 (en) * 2014-05-23 2017-07-20 Covidien Lp 3d laparoscopic image capture apparatus with a single image sensor
IL236418A (en) * 2014-12-23 2016-07-31 Visionsense Ltd Stereo endoscope with tiltable, rotatable view
DE102015217079B4 (de) * 2015-09-07 2017-03-23 Olympus Winter & Ibe Gmbh Optisches System eines Stereo-Videoendoskops, Stereo-Videoendoskop und Verfahren zum Herstellen eines optischen Systems für ein Stereo-Videoendoskop
DE102015118199A1 (de) * 2015-10-26 2017-04-27 Karl Storz Gmbh & Co. Kg Optisches medizinisches Instrument
DE102017123320A1 (de) 2017-10-09 2019-04-11 Olympus Winter & Ibe Gmbh Stereoendoskop

Also Published As

Publication number Publication date
US20210219825A1 (en) 2021-07-22
US11224333B2 (en) 2022-01-18
DE102017123320A1 (de) 2019-04-11
CN111093460A (zh) 2020-05-01
JP2020533133A (ja) 2020-11-19
JP6876870B2 (ja) 2021-05-26
WO2019072615A1 (fr) 2019-04-18

Similar Documents

Publication Publication Date Title
EP3694389A1 (fr) Endoscope stéréoscopique
DE3025186C2 (de) Optisches System mit veränderbarer Betrachtungsrichtung, insbesondere für Endoskope
DE102015217079B4 (de) Optisches System eines Stereo-Videoendoskops, Stereo-Videoendoskop und Verfahren zum Herstellen eines optischen Systems für ein Stereo-Videoendoskop
DE2347914B2 (de) Endoskop mit einer Bildübertragungs-Faseroptik und einem ersten und drehbaren zweiten Reflexionselement
EP3162273B1 (fr) Instrument médical optique
DE102017103721B4 (de) Vorrichtung zur Erfassung eines Stereobilds mit einer rotierbaren Blickrichtungseinrichtung
EP3276390A1 (fr) Système optique et instrument chirurgical comprenant un tel système optique
EP3792676A1 (fr) Endoscope pourvu d'agencement filtrant optique et utilisation
EP3694388B1 (fr) Système optique pour une caméra stéréoscopique
EP2416200A1 (fr) Endoscope à direction d'observation ajustable
WO2019175044A1 (fr) Système optique d'un stéréo-vidéo-endoscope et procédé de fabrication de ce dernier
EP2818094B1 (fr) Instrument d'observation équipé d'un champ d'image symétrique en utilisant des capteurs d'image asymétriques
EP3697282B1 (fr) Module de prisme déviateur destiné à un endoscope et endoscope pourvu d'un sens de vision latérale
DE102016219217A1 (de) Winkelselektives optisches System, Stereo-Videoendoskop mit einem solchen System sowie Verfahren zum Herstellen desselben
EP3555686B1 (fr) Système optique pour un endoscope à visée latérale ainsi qu'endoscope à visée latérale
DE3329589A1 (de) Aus lasersender, tagkanal und waermebildkanal bestehende geraeteanordnung
DE102018121673B3 (de) Stereoendoskop
EP3746830A1 (fr) Système optique d'un stéréo-vidéo-endoscope
DE102017012427B3 (de) Vorrichtung zur Erfassung eines Stereobilds mit einer rotierbaren Blickrichtungseinrichtung
CH600305A5 (en) Stereo-evaluator for aerial photographs
DE102017131131A1 (de) Optisches System eines Stereo-Videoendoskops mit Blende
DE1953352C (de) Ziel- und Beobachtungseinrichtung mit zwei elektrooptischen Beobachtungsgeräten
WO2019025166A1 (fr) Ensemble de prismes pour un endoscope vidéo stéréophonique
DE102014010748A1 (de) Endoskop
DE102019106453A1 (de) Endoskop

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20200511

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20220228

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20220909