EP3631557A2 - Lunette de visée pour arme à lunette de visée, en particulier une arme de chasse - Google Patents

Lunette de visée pour arme à lunette de visée, en particulier une arme de chasse

Info

Publication number
EP3631557A2
EP3631557A2 EP18728598.6A EP18728598A EP3631557A2 EP 3631557 A2 EP3631557 A2 EP 3631557A2 EP 18728598 A EP18728598 A EP 18728598A EP 3631557 A2 EP3631557 A2 EP 3631557A2
Authority
EP
European Patent Office
Prior art keywords
tan
lens
location
lens group
night vision
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Withdrawn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
EP18728598.6A
Other languages
German (de)
English (en)
Inventor
Horst MEUSER
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.)
Indivi Optics GmbH
Original Assignee
Indivi Optics 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
Priority claimed from DE102018105909.4A external-priority patent/DE102018105909B4/de
Application filed by Indivi Optics GmbH filed Critical Indivi Optics GmbH
Publication of EP3631557A2 publication Critical patent/EP3631557A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B25/00—Eyepieces; Magnifying glasses
    • G02B25/001—Eyepieces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G1/00—Sighting devices
    • F41G1/38—Telescopic sights specially adapted for smallarms or ordnance; Supports or mountings 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
    • G02B23/12—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
    • 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
    • G02B23/125—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 head-mounted

Definitions

  • the invention relates to a riflescope for a riflescope rifle, in particular hunting rifle.
  • Riflescopes are well known and include an optical system with an integrated aiming device.
  • the known riflescopes have a tube attached to the rifle in which an optical system is received, the optical system having in the light direction successively an objective system, a reversing lens system and an ocular system defining an exit pupil.
  • a reticle is arranged in the optical system.
  • the invention has for its object to expand the uses of riflescopes.
  • the basic idea of the invention is to expand the scope of application of a riflescope by adapting the optical system of the riflescope to use with a night-vision device.
  • the invention provides for the first time a riflescope that can be usefully used in the sense of assisting the hunter in aiming with a night-vision device.
  • the invention also allows hunters whose vision is limited in dim light, the use of a riflescope.
  • the aim of a riflescope is to prevent a targeted game from being hit and shot in the desired manner and only shot at.
  • the invention is therefore socially useful in the sense of a game-friendly capture of the game.
  • the use of a telescopic sight with a night-vision device connected downstream has led in the prior art to results which are not sufficient for the intended use.
  • the main problem here is the too low light intensity of the image obtained by combining a riflescope with a night vision device connected downstream.
  • the lens of a typical night-vision device has a diameter of the entrance pupil of about 20 mm and larger.
  • the lens of a night vision device projects the image into the plane of an electrical detector. Since the illuminance of this image, and thus the ability of the device to produce sufficiently bright images on the side of the screen, is related to the ocular with the uadrat of the effective pupil size, this is the combination of a prior art rifle scope and a night vision device optical image in the first approximation by a factor of 8 darker than with a night vision device alone.
  • the invention provides a riflescope whose optical system is optimized for use with the riflescope with a night vision device.
  • the invention enables an optical system having an exit pupil with a diameter of 20mm, which represents a significant advance over the prior art.
  • An inventive night vision sighting system is specified in claim 22.
  • the basic idea of the invention in this respect is to expand the application possibilities of a rifle scope by providing a night vision sighting system with a riflescope whose optical system with respect to the Diameter of the exit pupil of the optical system is designed for use with the downstream night-vision device, and a night-vision device is provided.
  • the invention uses a riflescope which, in the sense of aiding the user, for example a hunter, can be usefully used in aiming with a night-vision device (night-vision device).
  • a riflescope which, in the sense of aiding the user, for example a hunter, can be usefully used in aiming with a night-vision device (night-vision device).
  • night-vision device night-vision device
  • the invention also allows users whose vision is limited in dim light, the use of a riflescope.
  • a riflescope for example, it is prevented on the hunt that a targeted game is not hit and killed in the desired waid Lobby, but only shot.
  • the invention is therefore socially useful in the sense of a game-friendly capture of the game.
  • the invention utilizes a riflescope whose optical system is optimized for use of the riflescope with a night vision device.
  • the invention uses a riflescope with an optical system having an exit pupil with a diameter of 20 mm, which represents a significant advance over the prior art.
  • the night vision device has an imaging unit for generating a night vision image.
  • the sighting system comprises a pair of glasses, which are portable on the head of a user of the sighting system, comprising a frame and lenses, and a projecting unit attached to the glasses, which is formed and in image communication with the imaging system such that the night vision image is projected or projected on a spectacle lens of the glasses in the manner of a head-up display.
  • a user of the night-vision system according to the invention which is also referred to below as a sighting system, observes the target area in daylight and sufficient light conditions through the glasses when the night vision device is turned off and targets a recognized target by means of the riflescope.
  • the user can switch on the night vision device.
  • the Night vision image generated by the night vision device is projected by means of the projection device onto a spectacle lens of the spectacles, which thus functions as a combiner of a head-up display.
  • the user can observe the target area with the help of the night vision image even in low light conditions.
  • the user may aim the same through the scope with the night vision device turned on.
  • the target detection with the night-vision device switched off does not differ from the target detection when the night-vision device is switched on.
  • the user of the sighting system for using the night vision device is not forced to look permanently through an eyepiece of the night vision device, the observation of a target area from the night vision image is much less fatigued and more comfortable compared to conventional night vision sighting systems designed.
  • the night-vision device of the sighting system can be a stationary or movable night-vision device arranged away from the user whose night-vision image is transmitted to the projection device and projected onto the spectacles.
  • An advantageous development of the invention provides that the night-vision device or parts thereof can be fastened or attached to the frame of the glasses or are or can be worn by means of a holder on the body of the user.
  • the user carries with him the night vision device, so as to ensure that the night vision device always provides a night vision image of the terrain in which the user is immediately located.
  • the night-vision device or parts thereof can be detachably fastened or fastened to the frame of the spectacles.
  • the night-vision device can also be arranged away from the frame of the spectacles, as provided by another advantageous development of the invention.
  • Another advantageous development of the invention provides that the imaging unit of the night-vision device is in image data transmission connection with the projection unit via a wireless or wired transmission link.
  • the generation of a night vision image can be done in different ways according to the respective requirements.
  • advantageous developments of the invention provide that the imaging unit for generating a night vision image is designed in the manner of a residual light amplifier and / or that the imaging unit is designed to produce a night vision image like a thermal imaging camera and / or that the imaging unit for generating a night vision image has a digital image sensor.
  • Corresponding methods are generally known to the person skilled in the art and will therefore not be explained in detail here.
  • the optical system of the telescopic sight is adapted to a use of the telescopic sight with the night vision device by the diameter of the exit pupil of the eyepiece 15 to 25 mm, preferably 20 mm, and the location of the exit pupil on the optical axis is at least 75mm behind the last in the light direction glass surface of the eyepiece.
  • This embodiment uses a riflescope having an exit pupil with a particularly large diameter.
  • the optical system of the telescopic sight defines an entrance pupil (EP), a first intermediate image plane (ZBE1), a second intermediate image plane (ZBE2), an aperture stop (APE) and an exit pupil (AP), wherein the optical system is designed such that according to the extended invariant according to Helmholtz-Lagrange (Optical Invariant)
  • Another advantageous embodiment of the invention provides that the projection unit is detachably connected or connected to the frame of the glasses.
  • the sighting system as a voltage supply to its electrical and electronic components at least one preferably rechargeable battery.
  • the night-vision device has a lens with an optical axis which is fastened or attachable to the frame of the spectacles such that the optical axis of the objective of the night-vision device is aligned with the optical axis of the spectacles, in particular such that the optical axis of the lens of the Night vision device is arranged parallel or approximately parallel to the optical axis of the spectacles and perpendicular to the optical axis of the spectacles spaced therefrom.
  • a handgun according to the invention in particular hunting rifle, is specified in claim 35 and has an inventive night vision sighting system.
  • Fig. 1 shows a first embodiment of a telescopic sight according to the invention in a true-to-scale lens section
  • FIG. 1 shows a second embodiment of a telescopic sight according to the invention
  • Fig. 3 is a block diagram of an embodiment of a night vision visor system according to the invention.
  • Night vision sighting system a highly schematized schematic diagram.
  • Fig. 1 an embodiment of an optical system 2 of a telescopic sight according to the invention is shown, in the form of a true-to-scale lens section.
  • the optical system 2 is described below, inter alia, according to the principle of the optical invariant according to Helmholtz-Lagrange.
  • EP entity pupil
  • ZBE1 first intermediate image plane
  • APE aperture diaphragm
  • ZBE2 second intermediate image plane
  • AP exit pupil
  • the optical system 2 has, in the light direction, successively an objective system 100, a reversing system 200 embodied as a reversing lens system in this exemplary embodiment, and an eyepiece system 300.
  • the location of the entrance pupil in the drawing is designated by "EP”
  • the location of the first intermediate image plane by "ZBE1” the location of the second intermediate image plane by "ZBE2” and the location of the exit pupil by "AP”.
  • the optical system 2 has a reticle, however, which is well known to the skilled person and therefore not shown for reasons of simplicity.
  • the eyepiece system 300 has, in the light direction, successively a first eyepiece lens group (lenses 301, 302, 303 and 304) and a second eyepiece lens group (lenses 305, 306 and 307).
  • the eyepiece system 300 forms a tea lens, the function of which is to transform the intermediate image of the second intermediate image plane ZBE2 into collimated beams so that it is sharply imaged on the retina of a user of the telescopic sight.
  • the first eyepiece lens group comprises, in the light direction according to the invention, a negative first meniscus lens (composed of the cemented lenses 301 and 302) and a negative second meniscus lens meniscus lens (composed of the cemented lenses 303 and 304), the concave surfaces the first meniscus lens and the second meniscus lens face the object side.
  • the meniscus lenses L1 / L2 and L3 / L4 are used for field flattening and minimizing the chromatic magnification difference.
  • the meniscus lenses serve to (partially) suppress the Petzval sum.
  • the meniscus lenses 301/302 and 303/304 are spaced apart by an air gap. According to the respective requirements, the meniscus lenses of the eyepiece system 300 can also be formed by individual menisci.
  • the second eyepiece lens group has, in the illustrated embodiment, three positive single lenses 305, 306 and 307 serving to minimize the secondary term of the lateral color magnification error.
  • the lenses 305, 306 and 307 provide the basic power of the eyepiece system 300 and accordingly are preferably made of high refractive index glasses.
  • the objective system 100 has a first objective lens group (lenses 101, 102 and 103) in front in the light direction, which is arranged downstream of a second objective lens group (lenses 104, 105) in the light direction.
  • the second objective lens group is followed by a third objective lens group (lenses 106 and 107) in the light direction.
  • the objective system 100 is designed such that a completely corrected intermediate image is generated in the first intermediate image plane ZBE1.
  • the objective system 100 is composed of the first objective lens group, the second objective lens group and the third objective lens group.
  • the first objective lens group is successively composed of a positive first objective lens 101, a positive second objective lens 102 and a positive third objective lens 103 in the light direction, with the first objective lens 101 and the second objective lens 102 cemented together are and form a composite member.
  • the second objective lens group is successively composed of a negative fourth objective lens 104 and a negative fifth objective lens 105 in the optical direction, the fourth objective lens 104 and the fifth objective lens 105 being cemented together to form a composite member.
  • the third objective lens group (lenses 106 and 107) is composed of a positive composite member having a sixth objective lens 106 and a seventh objective lens 107 which are cemented together.
  • the objective system 100 is designed such that a telecentric beam path is present on the image side, ie at the location of the first intermediate image plane ZBE1. It is furthermore designed so that the object space is imaged without compensation in the first intermediate image plane ZBE1. Furthermore, the objective system 100 is designed to minimize color magnification error and anastigmatic imaging
  • the reversing system 200 in the illustrated embodiment is formed as an inverted lens system consisting of a first inverse-direction lens group (lens 201), a second inversion-system lens group (lenses 203 to 207), and a third inversion-lens group (lens 208) sequentially in the light direction.
  • the reversing system 200 is designed in terms of its refractive power so that the smallest possible length of the optical system 2 results.
  • the first inversion system lens group consists of a positive first lens 201 acting as a field lens.
  • the lens 201 is preferably made of ultraviolet light. high refractive glass and serves to reduce the Farbvergrö Erungscons.
  • the second reversing system lens group is in the illustrated embodiment six linsig designed in the manner of a Doppelgauß construction.
  • the third inversion system lens group consists of a positive single lens 208.
  • the reversing system 200 is designed so that the object side is a telecentric beam path.
  • slide apertures 108 in the objective system 100 and 209, 210 and 211 (in the inversion system 200) serve to suppress stray light.
  • a riflescope 4x80 In a modification of the first embodiment is a riflescope 4x80.
  • a lens system 100 with an EP diameter of 80 mm and the same f-number k (k f / DEP) is used. The other components remain unchanged.
  • the diameter of the exit pupil is 20 mm
  • the location of the exit pupil on the optical axis 10 of the optical system is 75 mm behind the last glass surface in the light direction (rearward surface of the lens 307) of the eyepiece system 300.
  • the invention provides the use of night vision devices in combination with a riflescope and thus greatly extends the use of riflescopes.
  • FIG. 2 shows a second exemplary embodiment of an optical system 2 according to the invention of a telescopic sight, in which the diameter of the exit pupil is smaller in comparison to the first exemplary embodiment according to FIG.
  • the second embodiment differs from the first embodiment mainly in that instead of a reverse lens system, a reverse prism system is used, which consists of a Schmidt-Pechan prism 400.
  • a reverse prism system which consists of a Schmidt-Pechan prism 400.
  • the eyepiece system 300 is unchanged from the first embodiment.
  • the objective system 100 consists, in the light direction, successively of a first objective lens group (individual lenses 401, 402 and 403) and a second objective lens group (composite member consisting of lenses 404 and 405).
  • a forward positive lens 401 in the light direction is followed by a positive lens 402, which is followed by a negative lens 403.
  • the second objective lens group consists of a positive link in the form of a meniscus lens consisting of two cemented lenses 404 and 405.
  • the second exemplary embodiment is also described on the basis of its Helmholtz-Lagrange parameters.
  • a modification of the second embodiment consists in a telescopic sight 6x72, so a rifle scope with 6-fold magnification.
  • the night-vision system 550 which is also referred to below as the sighting system 550, has the telescopic sight 500 and a night-vision device 600.
  • the optical system 2 of the riflescope 500 is designed and optimized, in particular with regard to the diameter of the exit pupil of the optical system 2 for use with the night-vision device 600, as explained in more detail above.
  • the night vision device 600 has an imaging unit 601 for generating a night vision image.
  • the sighting system 600 has a pair of glasses 602, which can be worn on the head by a user of the sighting system 600, and which is only shown schematically in FIG. 3.
  • the glasses 602 has a frame 603 and lenses 604, which are also shown only schematically in Fig. 3.
  • a projection unit 605 is fixed or attachable, which is in image data transmission connection with the imaging system 601 such that the night vision image generated by the imaging unit 601 in the manner of a head-up display on a lens 604 of the glasses 602 is projected or projected, as symbolized in Fig. 3 by a dashed line 606.
  • the night vision device 600 is attached to the frame 603 of the goggles 602 so that the night vision device 600 is always aligned in the direction of the user's vision and creates a night vision image of a scene in the user's field of vision.
  • the night vision device 600 may be releasably attached to the frame 603 of the eyeglasses 602.
  • the imaging unit 601 is in image data transmission connection with the projection unit 605 via a wireless or wired transmission path 607.
  • the user wears the glasses 602, wherein in good lighting conditions the night-vision device 600 is switched off and the user can observe the target area with the naked eye.
  • the user uses the scope 500.
  • the user can turn on the night vision device 600 whose imaging unit 601 then generates a night vision image corresponding to the field of view of the user projected onto a spectacle lens 604 of the spectacles 602 by means of the projection unit 605 in the manner of a head-up display ,
  • the night-vision device 600 switched on, the user can use it to observe the target area with the help of the night-vision image and to use the scope 500 to sight a target.
  • the targeting of a target thus takes place both when the night-vision device 600 is switched on and in the same way.
  • FIG. 4 shows a highly schematic view of the spectacles 602 whose optical axis is symbolized by a dot-dash line 612.
  • a lens 610 of the night vision device 600 is fixed, whose optical axis 614 is symbolized by a dot-dash line 614.
  • the telescopic sight 500 with its optical axis 616 is likewise shown purely schematically in FIG.
  • the lens 610 is fixed to the frame 603 of the glasses 602 such that the optical axis 614 of the lens 610 of the night vision device 600 is aligned with the optical axis 612 of the glasses 602, in the illustrated embodiment in that the optical axis 614 of the objective 610 of the night-vision device 600 is arranged parallel to the optical axis 612 of the spectacles 602 and perpendicular to the optical axis 612 of the spectacles 602, at a distance therefrom.
  • FIG. 4A shows a position of the spectacles 602 (and thus of the user's head of the night vision device 600) in which the optical axis 614 of the objective 610 of the night vision device 600 is offset relative to the optical axis 616 of the riflescope 500. In this position, the user views the night vision image on the lens 604 as a head-up display.
  • the user aligns the optical axis 612 of the glasses 602 by moving his or her head to the optical axis of the riflescope 500 in such a way that it looks through the spectacle lens 604 and the riflescope 500 and overlays the optical system (Non-enlarged or magnified according to an enlargement of the lens 610 of the night vision device) night vision image with the zoomed through the scope 500 optical image and, if appropriate, can aim in this position by means of the telescopic sight 500. If the night vision image interferes with the aiming using the image of the riflescope 500, the night vision device 600 may be switched off during the aiming process.
  • the user wishes to aim with the help of an enlarged night vision image
  • slightly moving his head he directs the lens 610 of the Night vision device 600 such that the optical axis 614 of the lens 610 of the night vision device 600 coincides with the optical axis 616 of the telescopic sight 500, as shown in Fig. 4B.
  • the user can choose to view the night vision image on the head-up display (see Fig. 4A) or the optical image of the rifle scope 500 or the enlarged night vision image (see Fig. 4B). want to aim.
  • the sighting system 550 makes it possible to use a telescopic sight with a night-vision device in an effective and user-friendly manner.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Telescopes (AREA)
  • Lenses (AREA)

Abstract

L'invention concerne une lunette de visée, destinée à une arme à lunette de visée, notamment une arme de chasse, comprenant un tube qui est fixé ou peut être fixé à l'arme et dans lequel est reçu un système optique (2) qui comporte successivement dans la direction de la lumière un système de lentilles (100), un système inverseur (200) et un système à oculaire (300) qui définit une pupille de sortie. Le système à oculaire (300) comprend, successivement dans la direction de la lumière, un premier groupe de lentilles d'oculaire et un deuxième groupe de lentilles d'oculaire. Le premier groupe de lentilles d'oculaire comporte, successivement dans la direction de la lumière, une première lentille de ménisque négative (301, 302) et une deuxième lentille de ménisque négative (303, 304). Les surfaces concaves de la première lentille de ménisque (301, 302) et de la deuxième lentille de ménisque (303, 304) sont dirigées du côté objet et le deuxième groupe de lentilles d'oculaire comprend au moins deux lentilles individuelles positives (305, 306, 307).
EP18728598.6A 2017-05-31 2018-05-29 Lunette de visée pour arme à lunette de visée, en particulier une arme de chasse Withdrawn EP3631557A2 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE102017111934 2017-05-31
DE102017125132 2017-10-26
DE102018105909.4A DE102018105909B4 (de) 2017-05-31 2018-03-14 Zielfernrohr für ein Zielfernrohrgewehr, insbesondere Jagdgewehr
DE102018108980 2018-04-16
PCT/EP2018/064012 WO2018219913A2 (fr) 2017-05-31 2018-05-29 Lunette de visée pour arme à lunette de visée, en particulier une arme de chasse

Publications (1)

Publication Number Publication Date
EP3631557A2 true EP3631557A2 (fr) 2020-04-08

Family

ID=64454463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18728598.6A Withdrawn EP3631557A2 (fr) 2017-05-31 2018-05-29 Lunette de visée pour arme à lunette de visée, en particulier une arme de chasse

Country Status (2)

Country Link
EP (1) EP3631557A2 (fr)
WO (1) WO2018219913A2 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3384434A (en) * 1965-04-02 1968-05-21 Army Usa Wide angle eyepiece with large eye relief
US4720183A (en) * 1986-02-27 1988-01-19 Optical Systems Design, Inc. Extreme wide angle eyepiece with minimal aberrations
JPH095645A (ja) * 1995-06-15 1997-01-10 Nikon Corp 広視野接眼レンズ
EP2848977B1 (fr) * 2005-01-26 2018-02-28 Leupold & Stevens, Inc. Lunette à système de grossissement amélioré

Also Published As

Publication number Publication date
WO2018219913A3 (fr) 2019-03-14
WO2018219913A2 (fr) 2018-12-06

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