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WO2002001273A2 - Dispositif de vigilance nocturne - Google Patents

Dispositif de vigilance nocturne Download PDF

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Publication number
WO2002001273A2
WO2002001273A2 PCT/EP2001/007276 EP0107276W WO0201273A2 WO 2002001273 A2 WO2002001273 A2 WO 2002001273A2 EP 0107276 W EP0107276 W EP 0107276W WO 0201273 A2 WO0201273 A2 WO 0201273A2
Authority
WO
WIPO (PCT)
Prior art keywords
coupling
axis
night vision
reflective
eyepiece
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.)
Ceased
Application number
PCT/EP2001/007276
Other languages
German (de)
English (en)
Other versions
WO2002001273A3 (fr
Inventor
Dusan Zadravec
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.)
Leica Geosystems AG
Original Assignee
Leica Geosystems AG
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 PCT/EP2000/005924 external-priority patent/WO2001001185A1/fr
Application filed by Leica Geosystems AG filed Critical Leica Geosystems AG
Priority to US10/312,066 priority Critical patent/US6911643B2/en
Priority to CA2413743A priority patent/CA2413743C/fr
Priority to DE50107133T priority patent/DE50107133D1/de
Priority to AU2001289610A priority patent/AU2001289610A1/en
Priority to EP01969319A priority patent/EP1295160B1/fr
Publication of WO2002001273A2 publication Critical patent/WO2002001273A2/fr
Publication of WO2002001273A3 publication Critical patent/WO2002001273A3/fr
Priority to NO20025952A priority patent/NO20025952L/no
Anticipated expiration legal-status Critical
Ceased 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
    • G02B23/12—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, in particular monocular, night vision device according to the preamble of claim 1, and to a device for coupling in and out optical signals - in particular for
  • Night vision devices are essentially designed according to the following principles.
  • a lens preferably a high-intensity lens, focuses the rays emanating from an object to be observed onto an entrance window of a residual light amplifier.
  • the image of the object is electronically amplified and appears due to the phosphorescent coating at the exit of the
  • Residual light amplifier as a bright green image on its exit window.
  • the amplified, green image of the object is reversed via an image reversal system, which is associated with the residual light amplifier, if necessary separate. This green image is projected into the user's eye via an eyepiece.
  • a monocular night vision device is known from WO 96/10764, in which two reflective, optical elements, each with a mirror surface, are arranged between the residual light amplifier and the eyepiece. These mutually displaced mirror surfaces are aligned with one another.
  • This too Night vision device has the structural disadvantages of conventional night vision devices.
  • Coupling device inevitably reduces the pupil distance, which considerably reduces the wearing comfort, especially for spectacle wearers, and may require optical readjustments.
  • the invention is based on the object of providing a night vision device, the one
  • Residual light amplifier possibly with a conventional inverter, has, however, a significant reduction in terms of length, weight and manufacturing costs of the device.
  • the distance between the center of gravity of the device and the user's head should also be reduced, especially in non-handheld applications.
  • the task is based, depending on the respective situation, to add or remove visual information from the night vision image with additional devices.
  • the beam path is fundamentally folded by reflective, optical elements between the residual light amplifier and a receptor, such as the human eye, and between the residual light amplifier and the object.
  • a receptor such as the human eye
  • the solution according to the invention with four reflective, optical elements can also have the property of being able to observe the object directly (for example, like through sunglasses) and at the same time also its reinforced, generally green, image — superimposed on the “direct” image
  • the mirror surface of the first, reflective element assigned to the receptor does not restrict the field of vision for non-residual light-enhanced vision with a corresponding size.
  • Eyepiece can be divided into two parts. A first eyepiece part is arranged on the receptor beam axis between the mirror assigned to the receptor and the receptor and a second eyepiece part between the mirror assigned to the receptor and the residual light amplifier. This makes it possible to implement a device with a smaller size and thus additionally optimize the position of the center of gravity of the device in the application.
  • a given beam path can be better adapted to the geometrical conditions; compact and application-specific external dimensions can be realized. In this way, an optimal location of the device's center of gravity can be achieved, especially for helmet-based applications. Ergonomically advantageous designs can also be achieved for hand-held applications.
  • two monocular devices could be combined to form a binocular night vision device. If necessary, two identical devices can be combined on site to form hand-held or helmet-based night vision goggles. In such a case, the folded beam path enables a larger lens distance for stereoscopic residual light vision.
  • a coupling-in or coupling-out device enables, for example in combat, a visual, silent exchange of information, even during residual light observation (situational awareness). According to the invention, this is designed such that the distance between the receptor and the device is achieved by the coupling or
  • Decoupling device is not impaired and which can be plugged in or unplugged in the field or possibly even during the operation of the device.
  • the optical beams are preferably collimated. This enables a coupling or decoupling module inserted into the beam path to have no influence on the course of the beam path up to the receptor, i.e. A constant level of visual comfort is also given to those who wear glasses.
  • Information - best differentiated in color from the residual light image - is given: Orientation information (e.g. compass, GPS, distance information), target information (position of a possible target, superimposed on the residual light image), alphanumeric instructions, when integrating into a target system, a screen can be used electronically adjustable crosshairs can be realized. Fade in of image scenes from other locations and points, etc.
  • Orientation information e.g. compass, GPS, distance information
  • target information position of a possible target, superimposed on the residual light image
  • alphanumeric instructions when integrating into a target system, a screen can be used electronically adjustable crosshairs can be realized. Fade in of image scenes from other locations and points, etc.
  • Information is, for example: Documentation of the situation found and the actions carried out (e.g. police snipers, etc.) Transmission of image scenes from one's own location to decision-makers and combat partners.
  • a modular design of the coupling or decoupling device is characterized on the one hand by user friendliness and on the other hand by great flexibility.
  • the interdependencies between the coupling or decoupling device and the latter become receiving device can be minimized.
  • the user can carry such coupling or decoupling devices with him and, depending on the application, insert them into a night vision device or, if necessary, into another optical device provided with a corresponding device holder.
  • Technical advances in the coupling and decoupling devices have no negative impact on the technical status of an optical device provided with a corresponding device holder, as long as the mechanical and optical design of the coupling or decoupling device. Coupling device is left the same.
  • Figure la shows an illustration of optical elements of a night vision device according to the invention with a device holder for coupling or decoupling device for a visual information exchange in an oblique view;
  • FIG. 1b shows a top view of the optical elements of a rotatable embodiment of a night vision device according to the invention
  • Figure lc shows optical elements of a further embodiment of a night vision device according to the invention with a device holder for coupling and decoupling device and a two-piece eyepiece in an oblique view;
  • FIG. 2a shows an embodiment of a device receptacle according to the invention, shown in section, in side view;
  • Figure 2b shows an embodiment of a coupling device according to the invention for exchanging information shown in section in side view
  • FIG. 2c shows a side view of an embodiment of a decoupling device according to the invention for exchanging information.
  • Figure la shows the essential optical components of an embodiment of a monocular night vision device according to the invention and their arrangement to each other.
  • This embodiment has, in addition to a residual light amplifier 33, an objective 11 having an object axis 1, an eyepiece 77 having an eyepiece axis 7, lens systems and four reflective, optical elements, each arranged in pairs at certain angles, with a mirror surface.
  • the reflective, optical elements which are generally to be provided planar can, however, also be designed to be slightly aspherical in some cases. Instead of plane mirrors, reflection prisms could also be provided as reflective elements.
  • the respective mirror surfaces are aligned, for example, as in a conventional Porro-2 prism system.
  • the mirror surfaces here are not arranged in a self-contained assembly, but rather are different, optical components of the Night vision device according to the invention assigned individually or as a coplanar pair, ie having a common plane of incidence for optical rays.
  • the rays emanating from the object are focused by the lens 11 onto the entrance window 32 of the residual light amplifier 33 via the first reflective element in the form of the lens mirror 13.
  • the objective mirror 13 is oriented in such a way that the objective axis 1 with the optical axis of the residual light amplifier 33
  • Amplifier axis 3 forms a right angle.
  • the beam of rays amplified by the residual light amplifier 33 is reflected again by the second reflective element in the form of the amplifier mirror 35.
  • the amplifier mirror 35 is oriented such that the central axis of the reflected beam is parallel to a connecting axis 5.
  • the connection axis 5 is, for example, perpendicular to the plane which is spanned by the objective axis 1 and the amplifier axis 3.
  • the light beams reflected by the amplifier mirror 35 are transformed by a collimator lens system 53 into a preferably collimated beam bundle parallel to the connection axis 5. This preferably collimated beam optionally crosses a device receptacle 55 provided at this point.
  • the beam can then be focused by a focusing lens system 57 before it is deflected again via a third reflective element designed in the form of the connecting mirror 75 in the form of the connecting mirror 75 and parallel to the amplifier axis 3 ,
  • the central axis of the beam reflected at the connecting mirror 75 coincides with the optical axis of an eyepiece lens system 77, the eyepiece axis 7.
  • the amplifier mirror 35 and the connection mirror 75 have a common plane of incidence, which is spanned here by the amplifier axis 3, the connecting axis 5 and the eyepiece axis 7.
  • the eyepiece lens system 77 projects the beam of rays mirrored on the connecting mirror 75 indirectly via that in the form of the
  • Receptor mirror 97 formed, fourth reflective element in the eye 99.
  • the receptor mirror 97 is oriented such that the receptor beam axis 9 of the beam bundle mirrored on the receptor mirror 97 runs parallel to the objective axis 1. Since the receptor mirror 97 can also be designed to be transparent depending on the wavelength, the enhanced night vision image can be superimposed on the real image (see-through system). A small horizontal and vertical parallax offset can only be observed for objects that are in the immediate vicinity.
  • FIG. 1b shows an embodiment of a monocular night vision device which has the same optical components of the night vision device from FIG. In contrast to the embodiment in FIG.
  • Mirror surfaces are not aligned as with a Porro-2 prism system. Also in this embodiment, optical elements are rotatably connected to one another about axes. On the one hand, the objective mirror 13 and, connected to it, the objective 11 are rotatably mounted about the amplifier axis 3.
  • the receptor mirror 97 is in turn mounted rotatably about the eyepiece axis 7.
  • the amplifier mirror 35, collimator lens system 53, the device receptacle 55, the focusing lens system 57 and the connection mirror 75 are here rigidly connected to one another via a connection piece (not shown).
  • a connection piece not shown.
  • the axially parallel rotation of the receptor mirror 97 and the lens 11 has several advantages. By rotating of the receptor mirror 97 and the lens 11 by 180 ° in each case, the monocular night vision device from FIG. 1b, which is set here for right-eyed observation, could in principle be adapted for left-eyed use. In general, rotations of the receptor beam axis 9 and the lens axis 1 parallel to the axis can also, as shown in Figure lb, the course of the beam path and thus the position of the
  • the focus of the device taking into account the individual circumstances of the user, can be optimized for a generally customary fixation on the helmet.
  • the distance between the center of gravity of the device and the axis of rotation of the helmet on the user head must be kept as small as possible.
  • Figure lc shows a further embodiment of a night vision device according to the invention with a fully mirrored receptor mirror 97.
  • a fully mirrored receptor mirror 97 In contrast to the
  • Embodiments of FIGS. 1 a and 1 b only the residual light-amplified image and not the “direct” image can be seen here.
  • the eyepiece 77 is divided into two eyepiece parts.
  • a second eyepiece part 77b is arranged on the receptor beam axis 9 between the receptor mirror 97 and the receptor 99.
  • this embodiment is designed as a rotatable night vision device in accordance with the design variant of FIG. 1b, it must be ensured that the second eyepiece part 77b is rigidly connected to the receptor mirror 97.
  • the distribution of the components shown is based on handling considerations, i.e. Compactness, manageability, favorable focus, etc.
  • the individual components could also be arranged differently between the reflective elements.
  • the residual light amplifier 33 could also be arranged between the amplifier mirror 35 and the connection mirror 75, or even between the connection mirror 75 and the receptor mirror 97.
  • FIG. 2a shows a possible embodiment of a device holder 55 for, for example, a night vision device corresponding to FIGS. 1a, 1b and 1c, which is arranged in the connecting piece between the amplifier mirror 35 and the connecting mirror 75.
  • a device holder 55 for, for example, a night vision device corresponding to FIGS. 1a, 1b and 1c, which is arranged in the connecting piece between the amplifier mirror 35 and the connecting mirror 75.
  • connection housing 51 provided for this purpose, for example, includes the entire beam cross section of the preferably collimated beam 56.
  • Coupling or decoupling devices for coupling or decoupling visual information can of course also be implemented if only part of the beam path is available for use. In this embodiment, this occurs through collimator lens system 53 in parallel Connecting axis 5 aligned, preferably collimated beams 56 through a first plane-parallel sealing window 54 into the recess 52 of the device receptacle 55. After crossing the recess 52, the preferably collimated beam 56 passes through a second plane-parallel sealing window 54 and then strikes it
  • Focusing lens system 57 This arrangement according to the invention ensures on the one hand a gas-tight separation of the device holder 55 from that filled with protective gas
  • the partially collimated beam 56 to insert a partially transparent coupling or decoupling element carrier, for example a plane-parallel glass body, into the cutout 52 without the beam path of the night vision device being influenced thereby.
  • a partially transparent coupling or decoupling element carrier for example a plane-parallel glass body
  • Figure 2b shows an embodiment in the form of the Einkoppelmoduls 44 an inventive Einzw. Decoupling.
  • the coupling module 44 is inserted into the device receptacle 55 and shown locked.
  • the module housing 41 engages over the groove 58 and the locking elements (not shown in Figure 2b) come into engagement.
  • a light-conducting coupling element carrier 42 for example a glass cuboid, which in addition to two plane-parallel surfaces which are perpendicular to the connecting axis 5, also
  • Coupling element 45 for example having a physical beam splitter, is pushed into the cutout 52 in FIG. 2b such that the entire beam 56 traverses it.
  • the divider area of the coupling element 45 can also be very small.
  • the divider layer is advantageously composed such that it has a transmission maximum at the wavelengths emitted by the residual light amplifier.
  • the coupling element 45 is aligned in the coupling element carrier 42 such that the coupling axis 4 of the projection optics 43 is parallel to the
  • Connection axis 5 is coupled into the beam path in the direction of the focusing lens system 57.
  • the radiation surface can be a display 46, e.g. an actively illuminated LCD screen, an LED display or another light-emitting surface.
  • the information displayed on the LCD screen 46 is provided via the coupling data interface 47.
  • moving images which originate, for example, from a thermal imaging device, can also be made available in a suitably scaled manner. Such an arrangement enables a "sensor fusion" of a wide variety of sensors.
  • FIG. 2c shows an embodiment in the form of the decoupling module 44 of an inventive invention.
  • the decoupling module 66 is designed analogously in the same module housing 41.
  • the decoupling element carrier 62 with the same external dimensions like the coupling element carrier 42 from FIG. 2b, in particular in contrast, has a coupling element 65 which reflects 10 to 20% of the beams emitted by the residual light amplifier.
  • the outcoupling element 65 is aligned such that it has an outcoupling axis 6
  • Imaging optics 63 deflects parallel to the connection axis 5 in the direction of the collimator lens system 53. Instead of the radiation surface, there is a receiving surface, for example a sensitive CCD array 64, in the decoupling module 66.
  • the decoupled, visual information is made available, for example, via the decoupling data interface 67.
  • Both the coupling-in data interface 47 and the coupling-out data interface 67 of the coupling-in module 44 and the coupling-out module 66 can be connected to a radio, the antenna of which is advantageously located on the helmet of the user. A wireless transmission of the optical information is then possible.

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

Abstract

L'invention concerne un dispositif de vigilance nocturne, notamment monoculaire, présentant un objectif (11) et des systèmes de lentilles (53, 57, 77) qui projettent la lumière amplifiée dans une gamme d'ondes prédéterminée par un amplificateur de lumière résiduelle (33) sur un récepteur comme un oeil humain (99) placé sur un axe de faisceau de récepteur (9). Les éléments réfléchissants (13, 35, 75, 97) plient la trajectoire du faisceau de lumière traversant le dispositif de vigilance nocturne. Les surfaces miroir d'au moins une paire d'éléments réfléchissants (35, 75) sont à orientation coplanaire. Au moins un composant optique (33, 53, 55, 57, 77) est placé entre au moins une paire des quatre éléments réfléchissants (13, 35, 75, 97).
PCT/EP2001/007276 2000-02-15 2001-06-26 Dispositif de vigilance nocturne Ceased WO2002001273A2 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US10/312,066 US6911643B2 (en) 2000-02-15 2001-06-26 Night-vision device
CA2413743A CA2413743C (fr) 2000-06-26 2001-06-26 Dispositif de vigilance nocturne
DE50107133T DE50107133D1 (de) 2000-06-26 2001-06-26 Nachtsichtgerät
AU2001289610A AU2001289610A1 (en) 2000-06-26 2001-06-26 Night-vision device
EP01969319A EP1295160B1 (fr) 2000-06-26 2001-06-26 Dispositif de vigilance nocturne
NO20025952A NO20025952L (no) 2000-06-26 2002-12-11 Nattsynanordning

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EPPCT/EP00/05924 2000-06-26
PCT/EP2000/005924 WO2001001185A1 (fr) 1999-06-25 2000-06-26 Appareil de vision nocturne

Publications (2)

Publication Number Publication Date
WO2002001273A2 true WO2002001273A2 (fr) 2002-01-03
WO2002001273A3 WO2002001273A3 (fr) 2002-05-23

Family

ID=8164002

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/007276 Ceased WO2002001273A2 (fr) 2000-02-15 2001-06-26 Dispositif de vigilance nocturne

Country Status (5)

Country Link
AU (1) AU2001289610A1 (fr)
CA (1) CA2413743C (fr)
DE (1) DE50107133D1 (fr)
NO (1) NO20025952L (fr)
WO (1) WO2002001273A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108732740A (zh) * 2018-08-31 2018-11-02 东莞市德伸五金塑胶制品有限公司 一种单物镜双目镜望远镜
RU201139U1 (ru) * 2020-09-08 2020-11-30 Акционерное общество "Московский завод "САПФИР" Комбинированный ночной монокуляр

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10042154B1 (en) * 2017-02-06 2018-08-07 Bushnell Inc. System and method for introducing display image into afocal optics device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4124798A (en) * 1965-12-09 1978-11-07 Thompson Kenneth B Optical viewing apparatus
EP0252200A1 (fr) * 1986-07-08 1988-01-13 OIP OPTICS Naamloze Vennootschap Lunettes pour vision de nuit
GB8622378D0 (en) * 1986-09-17 1987-01-14 Gec Avionics Helmet systems
US4915487A (en) * 1989-02-01 1990-04-10 Systems Research Laboratories Heads up display for night vision goggle
FR2683330B1 (fr) * 1991-10-31 1994-11-25 Thomson Csf Jumelle informatique.
US5416315A (en) * 1994-01-24 1995-05-16 Night Vision General Partnership Visor-mounted night vision visor
AU6429400A (en) * 1999-06-25 2001-01-31 Leica Geosystems Ag Night sight device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108732740A (zh) * 2018-08-31 2018-11-02 东莞市德伸五金塑胶制品有限公司 一种单物镜双目镜望远镜
RU201139U1 (ru) * 2020-09-08 2020-11-30 Акционерное общество "Московский завод "САПФИР" Комбинированный ночной монокуляр

Also Published As

Publication number Publication date
CA2413743A1 (fr) 2002-12-20
CA2413743C (fr) 2011-04-26
AU2001289610A1 (en) 2002-01-08
WO2002001273A3 (fr) 2002-05-23
NO20025952D0 (no) 2002-12-11
NO20025952L (no) 2003-02-19
DE50107133D1 (de) 2005-09-22

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