EP4639254A1 - Lunette de visee ou d'observation amelioree - Google Patents
Lunette de visee ou d'observation amelioreeInfo
- Publication number
- EP4639254A1 EP4639254A1 EP23836418.6A EP23836418A EP4639254A1 EP 4639254 A1 EP4639254 A1 EP 4639254A1 EP 23836418 A EP23836418 A EP 23836418A EP 4639254 A1 EP4639254 A1 EP 4639254A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- display
- micro
- light guide
- eyepiece
- pupil
- 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.)
- Pending
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
- G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
- G02B23/10—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors reflecting into the field of view additional indications, e.g. from collimator
- G02B23/105—Sighting devices with light source and collimating reflector
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G1/00—Sighting devices
- F41G1/30—Reflecting-sights specially adapted for smallarms or ordnance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41G—WEAPON SIGHTS; AIMING
- F41G1/00—Sighting devices
- F41G1/32—Night sights, e.g. luminescent
- F41G1/34—Night sights, e.g. luminescent combined with light source, e.g. spot light
- F41G1/35—Night sights, e.g. luminescent combined with light source, e.g. spot light for illuminating the target, e.g. flash lights
-
- 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
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0081—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for altering, e.g. enlarging, the entrance or exit pupil
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/32—Fiducial marks and measuring scales within the optical system
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0123—Head-up displays characterised by optical features comprising devices increasing the field of view
- G02B2027/0125—Field-of-view increase by wavefront division
Definitions
- the field of invention is that of shooting glasses, in particular reflex viewfinders, which make it possible to superimpose a reticle on the observed scene.
- the weapon can also include for daytime aiming a clear sight (or "reflex"), that is to say an optical assembly making it possible to superimpose on the exterior a symbol or a light point in the axis of sight.
- This clear viewfinder can optionally be combined with a switchable magnifying lens. It may also include a laser pointer and a magnifying daytime bezel.
- the weapon may include: a laser pointer, a light-intensifying riflescope called “IL”, an infrared riflescope called “IR”, an adapter or “Clip-on” with light intensifier or infrared positioned upstream of a daytime rifle scope, a sighting device comprising night vision binoculars associated with a clear viewfinder attached to the weapon.
- a laser pointer a light-intensifying riflescope called “IL”
- IR infrared riflescope
- IR infrared riflescope
- Clip-on with light intensifier or infrared positioned upstream of a daytime rifle scope
- a sighting device comprising night vision binoculars associated with a clear viewfinder attached to the weapon.
- the clear viewfinder solution is particularly appreciated because it offers good precision, while preserving a good perception of the overall situation, the clear viewfinder transmitting the landscape without magnification.
- Aiming using a laser pointer, widely used, particularly at night, is very interesting because it allows rapid fire in dynamic combat, without requiring aligning the eye behind a viewfinder, or even supporting the weapon in extreme situations.
- the laser pointer remains indiscreet, especially at night. Even when it is a near-infrared pointer, it is easily detectable with night vision binoculars or even with some equipment using a sensitive near-infrared camera.
- Infrared or thermal shooting glasses have the same disadvantages but offer some significant advantages: night vision, including in total darkness, improved vision in the mists and smoke of the battlefield and above all the ability to "decamouflage" from any hot target.
- some sighting equipment includes an IL or IR riflescope topped with a clear viewfinder.
- the scope includes a thermal camera and a viewing device.
- the thermal camera comprises a focusing objective 1 and a photosensitive receiver 2.
- the display device comprises a micro-display 3 and an eyepiece 4.
- the clear viewfinder comprises a light symbol 5 and collimation optics 6 and superposition optics (typical a separating blade) with direct vision 7.
- FIG. 2 An improved solution is illustrated in Figure 2.
- the same references as those in Figure 1 designate the same elements as those described in Figure 1.
- the architecture of Figure 2 consists of combining an architecture of “advanced” reflex viewfinder with a single display 3 which is responsible for displaying everything: video stream, symbology, reticle, etc.
- the image on the display is sent back to infinity using an eyepiece 3.
- the fusion with the scene is done using a semi-reflecting blade 7.
- this element allowing the superposition of the image formed by the eyepiece and the observed scene is a separator cube or a prism.
- the reflex viewfinder with display of Figure 2 coupled to a camera 2 with light intensification or infrared thus presents real added value because it provides additional assistance for highlighting a target in difficult conditions (camouflage of the target, darkness, etc.) by compactly combining “night” and “day” vision.
- the invention aims to overcome some of the aforementioned problems of the prior art.
- an object of the invention is a sighting or observation telescope having a sighting or observation axis x and comprising, in a mechanical structure:
- first video micro-display displaying an image of the exterior landscape acquired by the camera, called the first object - a first eyepiece associated with the first video micro-display and forming a first image of the first object at infinity
- first pupil expansion light guide comprising at least two first flat and parallel faces
- the first pupil expansion light guide being arranged optically downstream of the first eyepiece and adapted to extend a pupil of the first eyepiece in two directions of space and to superimpose the first image on the exterior landscape
- a structure of the first pupil-expanding light guide being adapted so that a bulk of the first pupil-expanding light guide (PE1) along the x axis is less than 2 cm.
- the first light guide with pupil expansion is arranged so as to be substantially perpendicular to the x axis.
- a dimension along the x axis of each of the first flat and parallel faces is between 2 and 5 mm.
- an arrangement of the first light guide with pupil expansion, of the camera, of the first eyepiece and of the first video micro-display is adapted so that a bulk of the telescope according to the x axis is less than 15 cm.
- the first light guide with pupil expansion comprises two elementary light guides coupled so as to extend said pupil of the first eyepiece in two directions, the first elementary light guide comprising said two first flat faces and parallel and the second elementary light guide comprising two additional plane and parallel faces perpendicular to two first plane and parallel faces, and in which: a dimension along the x axis of each of the first plane and parallel faces is between 2 and 5 mm
- the field of the first eyepiece is between 10° and 16° degrees on at least one of its axes.
- the telescope further comprises a second video micro-display displaying a second object, a second eyepiece associated with the second video micro-display and forming a second image of the second object at infinity and a second pupil-expanding light guide comprising at least two second planar and parallel faces, the second pupil-expanding light guide being arranged optically downstream of the second eyepiece and adapted to expand a pupil of the second eyepiece in two directions of space and to superimpose the second image on the first image and on the exterior landscape.
- the second micro-display is a micro-display with low power consumption compared to the first micro-display. Even more preferably, the second object is a red dot or a luminous symbol.
- the glasses have a battery powering the camera, the first and second video micro-displays and a processor, said processor being configured to operate the glasses in two modes consisting of:
- the predetermined limit corresponds to a battery life in the first operating mode of less than 1 hour of use.
- the first micro-display emits radiation in a first spectral range and the second micro-display emits radiation in a second spectral range, separate from the first spectral range or the first and second micro-displays emit radiation in the same spectral range but presenting a crossed polarization.
- a structure of the first and second pupil-expanding light guide is adapted so that a bulk of the first and second pupil-expanding light guide respectively along the x axis is less than 2 cm.
- an arrangement of the first and second pupil expansion light guides, the camera, the first eyepiece and the first video micro-display, the second eyepiece and the second video micro-display is adapted so as to that the dimensions of the telescope along the x axis are less than 16 cm.
- FIG.1 a schematic view of a riflescope of the prior art
- FIG.2 a schematic view of a riflescope of the prior art
- FIG.3A a perspective view of a sighting or observation telescope according to the invention
- FIG.3B a schematic view of a sighting or observation telescope according to the invention
- FIG.3C a sectional view of an example of the first light guide with pupil expansion of the sighting or observation telescope according to the invention
- FIG.3D a sectional view of an example of the first light guide with pupil expansion of the sighting or observation telescope according to the invention
- FIG.3F a sectional view of an example of the first light guide with pupil expansion of the sighting or observation telescope according to the invention
- FIG.4 a schematic representation of one embodiment of the telescope of the invention
- FIG.5 a schematic representation of an embodiment of the telescope of the invention
- Figure 3A represents a perspective view of a sighting or observation telescope 10 according to the invention.
- Figure 3B is a schematic representation along an xy plane of the elements included in the mechanical structure SM of the telescope according to the invention.
- the telescope 10 essentially comprises two main subassemblies which are a camera C1 and a DV display device whose structure is detailed more precisely in FIG. 3B.
- the DV display device comprises a first micro-display MA1, a first eyepiece OC1 associated with the first display MA1 and a first light guide with pupil expansion PE1. All optical and electronic components are integrated into the waterproof SM mechanical structure which protects them from the external environment and shocks.
- This SM structure includes a mechanical fixing interface IF allowing it to be fixed on a weapon equipped with a standard interface.
- This interface is, for example, a “Picatinny” rail or its equivalent.
- the SM structure also includes an IC set of buttons and control elements allowing in particular the On/Off commands of the various functions of the equipment, the brightness adjustments of the first video micro-display MA1, the electronic settings and simbleautage mechanics, electronic settings for superimposing the different images generated on the exterior landscape. It can be placed on one of the two side walls of the bezel.
- the assembly has three buttons placed on the left side of the bezel, other buttons being placed on the right side of the bezel.
- the camera Cl is a thermal camera, comprising an infrared lens 01 operating in the spectral band located between 8 pm and 12 pm and a CPT infrared sensor sensitive in the same spectral band or between 3 and 5 ⁇ m.
- the camera is a low light level camera using a low noise “CMOS” CPT sensor, “CMOS” being the acronym for “Complementary Metal Oxide Semiconductor » or an “EB-CMOS” sensor, an acronym for “Electro-CMOS”
- CMOS complementary metal-oxide-semiconductor
- the camera can also be a “SWIR” camera, an acronym for “Short Wave InfraRed” operating in the spectral band between 1 pm and 2 pm, capturing nocturnal light resulting from nocturnal luminescence or “night glow” and also offering decamouflage capabilities.
- SWIR Short Wave InfraRed
- the camera Cl comprises power supply, sensor control and image processing electronics as well as a power supply unit (not shown) receiving several batteries or a rechargeable battery pack so as to ensure its operation. autonomy which is for example placed at the rear of the telescope, on the observer's eye side.
- the DV display device comprises the first video micro-display MA1, the first eyepiece OC1 forming an image of the first video micro-display at infinity and the electronics necessary for powering and controlling the first micro-display. display.
- the first micro-display MA1 displays a video aiming reticle, possibly enriched with elevation correction elements or symbols or stadimetric graduations. It also displays an image of the exterior landscape acquired by the camera, called the first object. According to another embodiment, the first micro-display MA1 only displays the image of the exterior landscape acquired by the camera. [0051]
- the first video micro-display MA1 is, for example, an “OLED” display, acronym meaning “Organic Light Emmitting Diode”, “LCD”, acronym meaning “Liquid Crystal Display”, or “LCOS”, acronym meaning “Liquid Crystal On Silicon”.
- the display device DV further comprises the first pupil expansion light guide PE1 arranged optically downstream of the first eyepiece and adapted to extend a pupil of the first eyepiece in two directions of space and to superimpose the first image on the exterior landscape.
- a light guide with pupil expansion PE is a component known in itself, made of a transparent material and comprises at least two flat and parallel faces FP1, FP1'. This element is usually used in head-up displays (HUD) in which it is positioned close to the eye in order to create a superposition between the exterior landscape and an image of a micro-display through an eyepiece.
- HUD head-up displays
- Figure 3C illustrates a sectional view of an example of an elementary light guide SG1 of the PE waveguide of the invention allowing an extension of the pupil of the first eyepiece OC1 in the z direction.
- the elementary light guide SG1 comprises at least two flat and parallel faces FP1, FP1’.
- the light beams F1 coming from the first micro-display MA1 and collimated by the first eyepiece OC1 enter for example into the elementary light guide through one of its side faces FP1. Entry into the guide can be done, as in the case shown, using a PR1 prism, but also with a network, which is then called an entry network.
- the beams F1 propagate in the elementary light guide SG1 by total reflections on the parallel faces FP1, FP1' of the guide SG1 as illustrated in Figure 3C.
- the guide SG1 of Figure 3C comprises two semi-reflective blades LR1, LR1' parallel and arranged with an angle relative to the parallel faces FP1, FP1 so as to extract part of the collimated beams F1.
- the guide SG1 comprises a network of microstructures or microprisms which ensures the same light extraction function.
- the guide SG1 instead of the parallel semi-reflecting blades LR1, LRT, the guide SG1 comprises a diffraction grating RD which diffracts part of the light towards the outside of the guide SG1 in the desired direction.
- This diffraction grating RD is located on one of the two faces FP1, FP1' of the guide SG1 or the interior of the guide SG1 itself.
- the waveguide PE1 of the invention comprises for example two elementary light guides SG1, SG2 coupled as illustrated in Figure 3F.
- the elementary light guide SG2 comprises two flat and parallel faces (only one FPA face is visible in Figure 3F) which are substantially perpendicular to the faces FP1, FP1' of the guide SG1.
- the PE waveguide is suitable for extending the pupil in two dimensions.
- these two directions are the directions y and z are normal to each other and are normal to the line of sight x. This allows for a more consistent superposition of the first image on the exterior landscape.
- the circled crosses indicate that the light propagates in a plane perpendicular to that of the leaf, in a direction parallel to the x axis.
- the telescope 10 of the invention has a reduced bulk D tx compared to glasses of the prior art.
- the waveguide PE1 of the invention has a structure and an arrangement such that its bulk D x along the axis of sight x is significantly less than that of the optical combination devices usually used in glasses of the prior art.
- the optical combination devices used in the glasses of the prior art have a bulk along the x axis typically greater than 4 cm.
- the waveguide PE1 of the invention has a structure and an arrangement such that its bulk D x along the axis of sight x is less than 2 cm, preferably less than 1 cm.
- the inventors have identified that the tunneling effect caused by an optical combination element becomes significantly less annoying when it presents a bulk along the line of sight of less than 2 cm.
- the DV viewing device is the most fragile part of the telescope and it must be protected via an armature (for example the metal structure SM in Figure 3A) .
- the protective frame can also be thinner, which allows a reduction in the overall mass of the telescope of the invention.
- the size D x is measured here taking into account the protection elements of the waveguide PE1.
- the waveguide PE1 Due to its function of superimposing the first image and the external landscape, the waveguide PE1 is designed at least partially with transparent elements in the visible (typically the flat and parallel faces).
- transparent we mean means here that the PE waveguide has a visible transmission greater than 90%.
- the PE waveguide has a vertical dimension (along the y direction) of 24 mm and a horizontal dimension (along the z direction) of 30 mm.
- the field of view is between 10° and 16° for the vertical and horizontal axis. It is preferably 14° along the horizontal axis and 10° along the vertical axis.
- the coefficient of transmission for the MA1 micro-display is 3% and the transmission coefficient for the outdoor landscape is 90%.
- the first micro-display emits radiation in a first spectral range having a spectral range less than or equal to 20 nm. It is then easier to design and manufacture a first guide PE1 having a high transmission in the visible for the ray coming from the external landscape and a high transmission for the beams F1 coming from the first micro-display.
- the first light guide with pupil expansion is arranged so as to be substantially perpendicular to the x axis to minimize the bulk of the telescope.
- this space requirement D x can for example be obtained by selecting:
- an arrangement of the first pupil expansion light guide PE1, of the camera Cl, of the first eyepiece and of the first video micro-display MA1 is adapted so that the bulk D tx of the telescope along the x axis is less than 15 cm.
- the bezel 10 is notably more compact than the glasses of the prior art.
- the field of view of the first eyepiece is between 10° and 16 on at least one of its axes.
- the field of view at the output of the first guide PE1 is identical to that of the first eyepiece.
- the means or means for extracting the PE guide are adapted so that the light has, at the outlet of the PE guide, a substantially equal luminance in a plane perpendicular to the x axis.
- substantially equal luminance we mean here a luminance equal to ⁇ 25%.
- the diffraction efficiency can be increasing in the z direction.
- the telescope of the invention is a reflex viewfinder and the optical chain consisting of the camera, the first micro-display and the eyepiece has a unit magnification, the image of the first micro-display being consistent with that of the exterior landscape.
- the PE waveguide then ensures the perfect superposition of the image of the micro-display on the external landscape.
- the telescope has a magnification greater than one.
- the telescope 1 comprises for example an afocal optical system arranged optically downstream of the PE waveguide to form a superimposed image of the first micro-display and the observed scene with a magnification greater than 1.
- Figure 4 illustrates an embodiment of the telescope of the invention in which the telescope comprises a second video micro-display MA2.
- the image displayed by the second video micro-display MA2 is called the second object.
- the telescope 10 further comprises a second eyepiece OC2 associated with the second video micro-display and forming a second image of the second object at infinity and a second light guide with pupil expansion PE2.
- the second light guide PE2 comprises at least two second flat and parallel faces and plays a role similar to the role of the first light guide PE1.
- the second pupil expanding light guide PE2 is arranged optically downstream of the second eyepiece and is adapted to expand a pupil of the second eyepiece OC2 in two directions of space and to superimpose the second image on the first image and on the exterior landscape.
- the first and second video micro-displays MA1, MA2 are, for example, “OLED” displays, acronym meaning “Organic Light Emmitting Diode”, “LCD”, acronym meaning “Liquid Crystal Display”, or “LCOS”, an acronym meaning “Liquid Crystal On Silicon”.
- the bezel of the invention allows operation in a “degraded” mode via the display of a red dot / Customizable reticle with a battery life of a few hundred hours.
- the user can extend his mission or when the capacity of the battery powering the viewfinder drops below a critical threshold.
- the second micro-display is a micro-display with low power consumption compared to the first micro-display.
- low power consumption we mean here that the second micro-display has a power consumption of between 0.5 mW and 10 mW, while the first micro-display has a power consumption greater than or equal to 50 mW.
- the second micro-display displays a red dot or a light symbol.
- the luminous object being fixed over time, the power consumption of the second micro display is greatly reduced.
- the second micro-display has a refresh frequency less than or equal to 2 Hz in order to reduce its electrical consumption.
- the rate of refresh rate of the first micro-display is high in order to be compatible with a video stream.
- the first micro-display has a refresh rate greater than or equal to 20 Hz.
- the first video micro-display MA1 is an OLED MDP07 from Microoled. It allows the reflex viewfinder to operate nominally by projecting all available information: reticle, symbology, image, video stream, etc.
- the second video micro-display MA2 is an OLED MDP05 from Microoled.
- the first micro-display MA1 only displays the image of the exterior landscape acquired by the camera, while the second micro-display MA2 displays an aiming reticle .
- a structure of the first and second light guide with pupil expansion PE1, PE2 adapted so that a size D x1 D x2 , of the respectively first and second light guide PE1, PE2 according to the x axis is less than 2 cm.
- an arrangement of the first and second light guide with pupil expansion PE1, PE2, of the camera Cl, of the first eyepiece and of the first video micro-display MA1, of the second eyepiece and of the second microphone -MA2 video display is adapted so that a footprint D tx of the bezel along the x axis is less than 16 cm.
- the first micro-display emits radiation in a first spectral range and the second micro-display emits radiation in a second spectral range, separate from the first range spectral, advantageously, the first and the second spectral range have a spectral range less than or equal to 20 nm, for example by the addition of filters spectral displays placed in front of the micro-displays. This makes it possible to further simplify the design of the PE1 and PE2 guides,
- the two micro-displays MA1, MA2 emit radiation R1, R2 in the same spectral range but presenting a crossed polarization so that each guide PE1, PE2 does not act as on the radiation coming from the micro-display MA1 and the micro-display MA1 MA2 respectively.
- Figure 5 illustrates a preferred embodiment of embodiment M1, in which the telescope 10 comprises a battery BT powering the camera Cl, the first and second video micro-displays MA1, MA2 and a processor UT controlling the operation of the battery in a first and a second mode.
- the battery powers the first video micro-display and does not power the second video micro-display when a capacity of the battery is greater than a predetermined limit.
- the battery powers the two micro-displays MA1, MA2 in the first operating mode.
- the battery powers the second video micro-display and does not power the first video micro-display when the battery capacity is less than the predetermined limit.
- the UT processor allows the battery to operate in a second “degraded” mode in order to save the autonomy of the telescope 10 when the battery capacity falls below a limit defined by the user or the manufacturer.
- this degraded mode only a simple reticle can be used by the user.
- the reticle is displayed in combination with at least one element displaying information on the viewfinder, for example a low battery indicator and/or elements allowing different adjustments to be made such as electronic simbleage adjustment, brightness adjustment , etc ...
- the predetermined limit of the battery corresponds to a battery autonomy in the first operating mode of less than 1 hour of use.
- this limit is equal to 1000 mAh at ⁇ 50%. This limit allows you to continue to obtain the display of a red dot with an autonomy of a few hundred hours via switching to the second battery operating mode.
- the processor is further configured so that the battery operates in the second mode (power supply of the second video micro-display and not of the first video micro-display) when the processor detects a malfunction of the first display or the Cl camera.
- the malfunction may be a power supply problem.
- the processor is further configured so that the battery operates in the second mode or in the first mode depending on the selection of the user, for example by pressing one of the remote control elements IC on the mechanical structure SM.
- This variant makes it possible to obtain a more versatile telescope by selecting an enriched mode (first mode) or degraded mode (second mode) depending on the mission and its evolution.
- the riflescope according to the invention can include complementary modular optical systems making it possible to modify the perception of the exterior landscape.
- the waveguide(s) PE1, PE2 a magnifying afocal optic with a magnification of 3 for example.
- an optical module with a light intensifier invariant in magnification and axis deviation can be placed upstream of the waveguide(s) PE1, PE2. The user thus perceives both an intensified image and a thermal image of the exterior landscape.
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Astronomy & Astrophysics (AREA)
- Telescopes (AREA)
- Endoscopes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2214201A FR3144315B1 (fr) | 2022-12-22 | 2022-12-22 | Lunette de visée ou d'observation améliorée |
| PCT/EP2023/086626 WO2024133248A1 (fr) | 2022-12-22 | 2023-12-19 | Lunette de visee ou d'observation amelioree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4639254A1 true EP4639254A1 (fr) | 2025-10-29 |
Family
ID=87570896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23836418.6A Pending EP4639254A1 (fr) | 2022-12-22 | 2023-12-19 | Lunette de visee ou d'observation amelioree |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4639254A1 (fr) |
| FR (1) | FR3144315B1 (fr) |
| WO (1) | WO2024133248A1 (fr) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9223138B2 (en) * | 2011-12-23 | 2015-12-29 | Microsoft Technology Licensing, Llc | Pixel opacity for augmented reality |
| FR3068776B1 (fr) * | 2017-07-06 | 2020-10-02 | Thales Sa | Lunette de tir a viseur clair et camera thermique |
| FR3092916B1 (fr) * | 2019-02-14 | 2023-01-13 | Thales Sa | Dispositif de visualisation comportant un expanseur de pupille a deux miroirs |
-
2022
- 2022-12-22 FR FR2214201A patent/FR3144315B1/fr active Active
-
2023
- 2023-12-19 EP EP23836418.6A patent/EP4639254A1/fr active Pending
- 2023-12-19 WO PCT/EP2023/086626 patent/WO2024133248A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FR3144315B1 (fr) | 2025-05-23 |
| WO2024133248A1 (fr) | 2024-06-27 |
| FR3144315A1 (fr) | 2024-06-28 |
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