WO1994019658A1 - Telemetre electro-optique adaptable a un systeme de vision nocturne - Google Patents

Telemetre electro-optique adaptable a un systeme de vision nocturne Download PDF

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Publication number
WO1994019658A1
WO1994019658A1 PCT/EP1994/000423 EP9400423W WO9419658A1 WO 1994019658 A1 WO1994019658 A1 WO 1994019658A1 EP 9400423 W EP9400423 W EP 9400423W WO 9419658 A1 WO9419658 A1 WO 9419658A1
Authority
WO
WIPO (PCT)
Prior art keywords
electro
night vision
optical
vision device
range finder
Prior art date
Application number
PCT/EP1994/000423
Other languages
German (de)
English (en)
Inventor
Willibald Appt
Joachim Heppner
Original Assignee
Carl Zeiss
Carl-Zeiss-Stiftung
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 Carl Zeiss, Carl-Zeiss-Stiftung filed Critical Carl Zeiss
Publication of WO1994019658A1 publication Critical patent/WO1994019658A1/fr
Priority to NO943496A priority Critical patent/NO943496L/no
Priority to FI944886A priority patent/FI108367B/fi

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/32—Devices for testing or checking
    • F41G3/326—Devices for testing or checking for checking the angle between the axis of the gun sighting device and an auxiliary measuring device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/06—Aiming or laying means with rangefinder
    • F41G3/065—Structural association of sighting-devices with laser telemeters
    • 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
    • G02B23/12—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification

Definitions

  • Electro-optical range finder adaptable to a night vision device
  • the present invention relates to an electro-optical range finder that can be adapted to a night vision device.
  • Electro-optical rangefinders in combination with a wide variety of visor and target optics have long been known.
  • the combination of the rangefinder with a night vision device that has a residual light amplifier is required.
  • From DE 22 05 325 is. known to combine an image intensifier with a target device for distance measurement.
  • a target marking is reflected in the beam path of the image intensifier; the distance is measured by estimating the target mark size in the observed target. Accordingly , no automated distance measurement is provided. Rather, the distance measurement requires an incorrect estimation of different markings in the target device.
  • GB 2 011 043 also discloses the combination of a sighting optics with a laser range finder for weft simulation, the sighting optics not being specified in more detail. In the illustrated
  • Exemplary embodiments of FIGS. 1 and 3 each have a marking reflected in the beam path of the visor optics via a large deflection element.
  • the mirrored marking only serves as a hit display within the simulation Facility.
  • the deflecting element also covers a large part of the entrance pupil of the visor optics. As a result, vignetting results within the visor optics.
  • only the mirroring of a hit display via a triple prism is also provided on the edge of the optical sight lens.
  • GB 2011043 does not contain any references to a suitable adjustment of the laser rangefinder and sighting optics or a visualization of the target point aimed with the laser rangefinder.
  • the optical axes of the laser rangefinder and the sighting optics have to be adjusted exactly to each other.
  • the electro-optical rangefinder according to the invention which can be adapted to a night vision device, does not require any adjustment of the optical axes of the electro-optical rangefinder and the night vision device after a target mark adjustment when mounting the electro-optical rangefinder, since the point aimed by the electro-optical rangefinder is constantly on is visualized within the night vision device via a target.
  • one or more further information beam paths can optionally be reflected into the night vision device via the reflection device become.
  • digital displays come into question, on which the currently measured distance is shown, etc.
  • the information beam paths, to which the target mark reflection is also to be counted below, can also be reflected into the beam path of the target optics of the electro-optical range finder, which can be used unchanged during the day.
  • the range of the night vision device is not impaired by the use of a suitable deflection element and the reflection of the information beam paths at the edge of the entrance pupil of the night vision device. Furthermore, due to the arrangement according to the invention, it is sufficient to generate and reflect in faint information beam paths. The amplification of these faint information beam paths does not require any additional measures and is carried out automatically via the residual light amplifier of the night vision device.
  • a laser range finder can be considered as the preferred electro-optical range finder.
  • FIG. 1 shows a schematic representation of the essential components of the electro-optical range finder according to the invention, adapted to a night vision device
  • FIG. 2 shows a representation of the different beam paths in an embodiment of the electro-optical range finder that can be adapted to a night vision device.
  • the electro-optical range finder according to the invention adapted to a night vision device, is shown schematically with the essential components.
  • a laser rangefinder known per se is preferably selected as the exemplary embodiment as the electro-optical rangefinder, but other embodiments of an electro-optical rangefinder are also possible in principle.
  • the reference numeral (1) denotes a laser rangefinder known per se, which has a transmission and reception beam path and a target optics with an eyepiece (2). This target optic is sufficiently bright for daytime use. Ober
  • the laser rangefinder (1) can be detachably arranged on a night vision device (5) by connecting elements (3, 4).
  • a mounting rail as is known from riflescopes, can be used for this purpose.
  • the night vision device (5) also shown only schematically, has a structure which is known in principle. This essentially includes a residual light amplifier (6) as well as an observation objective (7) that defines an entrance pupil and an observation eyepiece (8).
  • the laser range finder (1) according to the invention further comprises a reflection device for projecting at least one information beam path. The information beam paths (9) generated and divided with the aid of the reflection device are reflected on the one hand into the entrance pupil of the night vision device (5) via a deflection element (11).
  • the reflection device comprises a beam splitter element (12) with two outputs, into which a wide variety of information beam paths can be projected.
  • the projection of a target mark is provided via an aperture (13b) illuminated from the rear by a light source (13a).
  • a display (14) is also projected in the direction of the beam splitter element (12).
  • a suitable optical element (15) is advantageously arranged between the first output of the beam splitter element (12) and the deflecting element (11) for adapting the imaging focal distance of the information beam path (9) reflected in the night vision device (5).
  • a further optical element (18) is provided between the second output of the beam splitter element (12) and the target optical beam path of the laser range finder (1).
  • the currently measured distance from the target point can be reflected, which is determined in a known manner by the laser range finder (1) via evaluation electronics (not shown).
  • further information determined by the automated laser rangefinder (1) can be visualized and reflected on the display (14), e.g. Current status displays of the laser rangefinder (1).
  • an option in the form of an operating console (16) is advantageously provided for the respective user.
  • the mirrored target mark or the projected diaphragm (13b) can be adjusted in position and is set when the laser rangefinder (1) is installed in such a way that the laser sighting device (5) or target optics
  • the target marker reflected in the rangefinder (1) marks the respective targeted target point in the image field viewed.
  • the direction of the information beam path (9) leaving the first output of the beam splitter element (12) is harmonized by the aperture adjustment with the optical axis of the laser range finder (1).
  • the information beam paths (9) at the edge of the entrance pupil are reflected into the night vision device (5) via the deflection element (11), which is designed as a triple prism in the exemplary embodiment shown.
  • the deflection element (11) In relation to the entire entrance pupil of the night vision device (5), only a small area is covered by the deflecting element (11), so that the range of the night vision device (5) is not significantly impaired thereby.
  • the triple prism shown it is also possible to use suitably arranged deflecting mirrors or the like, of which in particular the deflecting mirror facing the entrance pupil is to be dimensioned such that no larger part of the entrance pupil is shaded therefrom. No large light intensities are required to project the information beam paths (9, 10), since these information beam paths (9, 10) are also amplified by the residual light amplifier (6) of the night vision device (5) without additional measures being required for this.
  • the beam path of the electro-optical range finder according to the invention which can be adapted to a night vision device, is shown in FIG.
  • a laser range finder has been chosen as the embodiment of the electro-optical range finder.
  • the reference number (20) denotes the transmission beam path of the laser range finder.
  • the transmission beam path emitted by an electro-magnetic radiation source (28), for example a suitable laser diode, is suitably dimensioned via several optical elements (21, 22, 23, 24, 25).
  • a condenser (27) is provided for this purpose in connection with a cylindrical lens arrangement (26).
  • the transmission beam path (20) is preferably in the non-visible range of the electromagnetic spectrum, for example in the infrared spectral range.
  • the beam path reflected by the object under consideration or the reception and observation beam path is designated by the reference symbol (30).
  • This beam path (30) passes through a lens (31) and two deflection elements (32, 33) to a beam splitter element (34), which forms a first part of the receiving and observation beam path (30) in the direction of the observation eyepiece (36, 37 ) redirects.
  • a second part of the reception and observation beam path (30) is deflected with the beam splitter element (34) via an interference filter and a receiver diaphragm (38) onto an electro-optical detector element (39).
  • the receiving and observation beam path (30) is split after the objective (31) and the two deflection elements (32, 33) only at the beam splitter element (34).
  • the beam paths are separated in the direction of the observation eyepiece (36, 37) or electro-optical detector element (39).
  • the evaluation electronics not shown, arranged downstream of the electro-optical detector element (39), uses the registered signals to determine the current distance from a targeted target point and any other information.
  • the projectable target marking or the display (41), on which a wide variety of information can be visualized, is also shown schematically in FIG. 2.
  • the Information beam paths (40) projected by means of a light source (not shown) reach the beam splitter element (43) of the reflecting device via a deflection element (42) which on the one hand directs the information beam paths (40) in the direction of the target optics, ie the observation eyepiece (36, 37 ) of the laser rangefinder.
  • Optical elements (44a, 44b) and a further deflecting element (45) are arranged between the observation eyepiece (36, 37) and the beam splitter element (43), and the information beam paths ( 40) deflected in the direction of the night vision device (not shown).
  • two further deflection elements (46, 47) and two further optical elements (48, 49) are arranged between the output of the beam splitter element (43) and the entrance pupil of the night vision device in the exemplary embodiment shown.
  • the deflection element C50) arranged in front of the entrance pupil of the night vision device is only shown schematically.
  • the electro-optical rangefinder according to the invention can be used in combination with a night vision device arranged on a firearm.
  • a night vision device arranged on a firearm.
  • the arrangement of the night vision device with an attached electro-optical rangefinder in front of the sight optics of a rifle is possible.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Telescopes (AREA)

Abstract

Un dispositif de réflexion (11) monté dans un télémètre électro-optique (1) adaptable à un système de vision nocturne (5) permet de réfléchir une ou plusieurs trajectoires de rayons (9) porteurs d'informations aussi bien vers le système de vision nocturne (5) que vers l'objectif du télémètre électro-optique. Les avantages de cet agencement sont la visualisation peu coûteuse des informations les plus diverses et le fait qu'un réglage précis des axes optiques du système de vision nocturne et du télémètre électro-optique n'est plus nécessaire pendant leur utilisation proprement dite, une fois qu'ils ont été réglés pendant le montage.
PCT/EP1994/000423 1993-02-24 1994-02-15 Telemetre electro-optique adaptable a un systeme de vision nocturne WO1994019658A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NO943496A NO943496L (no) 1993-02-24 1994-09-20 Elektrooptisk avstandsmåler tilpassbar en nattsikteinnretning
FI944886A FI108367B (fi) 1993-02-24 1994-10-18 Y÷katselulaitteistoon sovitettava sõhk÷optinen etõisyysmittari

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4305588.5 1993-02-24
DE19934305588 DE4305588C1 (de) 1993-02-24 1993-02-24 An eine Nachtsichteinrichtung adaptierbarer elektrooptischer Entfernungsmesser

Publications (1)

Publication Number Publication Date
WO1994019658A1 true WO1994019658A1 (fr) 1994-09-01

Family

ID=6481166

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1994/000423 WO1994019658A1 (fr) 1993-02-24 1994-02-15 Telemetre electro-optique adaptable a un systeme de vision nocturne

Country Status (4)

Country Link
DE (1) DE4305588C1 (fr)
FI (1) FI108367B (fr)
NO (1) NO943496L (fr)
WO (1) WO1994019658A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH694174A5 (de) * 2003-04-16 2004-08-13 Leica Vectronix Ag Adapter-Filter.
DE102004054182C5 (de) * 2003-12-12 2015-03-12 Leica Camera Ag Binokulares Fernglas mit integriertem Laser-Entfernungsmesser
DE102007022833A1 (de) * 2007-05-15 2008-11-20 Carl Zeiss Optronics Wetzlar Gmbh Modularer Entfernungsmesser zur universellen Adaption an vorhandene Zieleinrichtungen
DE202015002992U1 (de) * 2015-04-22 2016-07-25 MÖLLER-WEDEL OPTICAL GmbH System zum Ausrichten einer Blende relativ zu einer optischen Achse

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2011043A (en) * 1977-12-05 1979-07-04 Precitronic Improvements in or Relating to Laser Devices for Shooting Simulation And/Or for Measurement of Distances
EP0003085A1 (fr) * 1978-01-06 1979-07-25 Societe D'optique Precision Electronique Et Mecanique - Sopelem Dispositif de conduite de tir
FR2467378A1 (fr) * 1979-10-13 1981-04-17 Eltro Gmbh Procede et dispositif d'harmonisation des axes optiques de deux appareils opto-electroniques
DE3329589A1 (de) * 1983-08-16 1985-03-07 Eltro GmbH, Gesellschaft für Strahlungstechnik, 6900 Heidelberg Aus lasersender, tagkanal und waermebildkanal bestehende geraeteanordnung
EP0422351A1 (fr) * 1989-09-13 1991-04-17 Deutsche Aerospace AG Système optoélectronique de visée

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2536956B2 (de) * 1975-08-19 1978-06-22 Siemens Ag, 1000 Berlin Und 8000 Muenchen Optoelektronisches (insbesondere Laser-) Entfernungsmeßsystem mit Empfangs-Strahlteiler und Blende
DE3232092C1 (de) * 1982-08-28 1984-03-01 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Tag/Nachtsichtgerät
DE3735898A1 (de) * 1987-10-23 1989-05-11 Messerschmitt Boelkow Blohm Reflexvisier zur zieleinrichtung von waffen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2011043A (en) * 1977-12-05 1979-07-04 Precitronic Improvements in or Relating to Laser Devices for Shooting Simulation And/Or for Measurement of Distances
EP0003085A1 (fr) * 1978-01-06 1979-07-25 Societe D'optique Precision Electronique Et Mecanique - Sopelem Dispositif de conduite de tir
FR2467378A1 (fr) * 1979-10-13 1981-04-17 Eltro Gmbh Procede et dispositif d'harmonisation des axes optiques de deux appareils opto-electroniques
DE3329589A1 (de) * 1983-08-16 1985-03-07 Eltro GmbH, Gesellschaft für Strahlungstechnik, 6900 Heidelberg Aus lasersender, tagkanal und waermebildkanal bestehende geraeteanordnung
EP0422351A1 (fr) * 1989-09-13 1991-04-17 Deutsche Aerospace AG Système optoélectronique de visée

Also Published As

Publication number Publication date
NO943496D0 (no) 1994-09-20
FI944886A0 (fi) 1994-10-18
NO943496L (no) 1994-09-20
FI944886A (fi) 1994-10-18
FI108367B (fi) 2002-01-15
DE4305588C1 (de) 1994-06-30

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