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EP3019813A1 - Blindage de protection contre le laser - Google Patents

Blindage de protection contre le laser

Info

Publication number
EP3019813A1
EP3019813A1 EP14747809.3A EP14747809A EP3019813A1 EP 3019813 A1 EP3019813 A1 EP 3019813A1 EP 14747809 A EP14747809 A EP 14747809A EP 3019813 A1 EP3019813 A1 EP 3019813A1
Authority
EP
European Patent Office
Prior art keywords
armor
laser
cooling fluid
armor element
cooling
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.)
Granted
Application number
EP14747809.3A
Other languages
German (de)
English (en)
Other versions
EP3019813B1 (fr
EP3019813B2 (fr
Inventor
Jürgen Weber
Norbert Keil
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.)
KNDS Deutschland GmbH and Co KG
Original Assignee
Krauss Maffei Wegmann GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=51292757&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3019813(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Krauss Maffei Wegmann GmbH and Co KG filed Critical Krauss Maffei Wegmann GmbH and Co KG
Publication of EP3019813A1 publication Critical patent/EP3019813A1/fr
Publication of EP3019813B1 publication Critical patent/EP3019813B1/fr
Application granted granted Critical
Publication of EP3019813B2 publication Critical patent/EP3019813B2/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H3/00—Camouflage, i.e. means or methods for concealment or disguise

Definitions

  • the invention relates to a laser armor for protecting an object, in particular a vehicle, from laser weapons with an armor element.
  • Another object of the invention is a method for protecting an object from laser weapons with a armor element having laser armor.
  • Another object of the invention finally forms a vehicle, in particular a military vehicle, with a laser armor.
  • the target Due to the energy introduced via the laser beam, the target is strongly locally heated in the region of the irradiation point of the laser radiation, which can lead to destruction or at least impairment of the object up to its complete destruction even after short irradiation times.
  • the armor elements provided on these although, for example, against ballistic projectiles or explosives are able to develop a good protective effect, but in the case of a laser attack are largely ineffective.
  • This is mainly due to the fact that large amounts of energy are introduced into the existing example of a steel armoring armor over the laser beam, which can lead to destruction of the armor element after a short Einstrahldauer due to the associated heat development. It is an object of the invention to provide a laser armor in which the protective effect against laser bombardment is markedly improved in comparison with conventional armor.
  • this object is achieved in that it has a cooling system for dissipating heat introduced into the armor element by the laser weapons.
  • the introduced by the impinging laser beam into the armor element heat from Einstrahltician the laser radiation be derived.
  • a heat input lying above the damage threshold of the material of the armor element in the region of the irradiation point can be avoided.
  • the risk of material failure due to the heat introduced by the laser radiation is significantly reduced.
  • the cooling system has a cooling fluid. About the cooling fluid and larger amounts of heat can be removed easily. It is advantageous in this context, when the cooling fluid circulates in a cooling circuit, which is guided by the armor element.
  • the cooling circuit may be a closed circuit to which heat introduced via the laser radiation in the region of the armor element is supplied, which is then transported away via the cooling fluid and discharged at a discharge point.
  • the cooling circuit is a refrigerant circuit with a compressor, a throttle, a condenser and an evaporator. Because of the refrigerants used in such a refrigerant circuit of a constant phase transformation, serving as a cooling fluid refrigerant comparatively large amounts of heat can be dissipated.
  • a structurally advantageous embodiment provides that the cooling fluid is passed from a reservoir coming through the armor element.
  • a certain amount of cooling fluid can be stored.
  • the cooling fluid can be removed from the reservoir and used to cool the armor element.
  • the cooling fluid can absorb heat and then heated flow out of the armor element, for example in the direction of the vehicle environment.
  • the cooling fluid heated by the laser radiation is guided out of an outlet provided in the lower region of the armor element and that cooling fluid of lower temperature is guided via an inlet provided in the upper region of the armor element. Cooler cooling fluid can first be fed into the armor element via the inlet. By absorbing heat introduced via the laser radiation, the cooling fluid can flow through the armor element and subsequently leave the armor element heated over the outlet.
  • cooling fluid is applied to the armor element via a spray device.
  • the cooling fluid can be applied in a feintropfig and targeted to the armor element in the manner of a spray.
  • an embodiment provides that the spray device is arranged on the threat side of the armor element, in the interior of the armor element or on the object side of the armor element.
  • the armor element has a chamber in which the cooling fluid is circulated.
  • the cooling fluid can enter the chamber via an inlet and exit via an outlet.
  • a spray device can be arranged in the region of the inlet.
  • a circulation pump and a cooling fluid which removes heat from the heated cooling fluid can be provided.
  • a victim plate filled with cooling fluid is arranged on the threat side of the armor element. When the laser radiation hits the sacrificial plate, it is first heated by the incident laser beam. In the process, the fluid arranged inside the sacrificial plate also heats up.
  • the sacrificial plate is destroyed and the cooling fluid provided within the sacrificial plate leaves the sacrificial plate via the irradiation point of the laser radiation.
  • the cooling fluid flowing in from above under the influence of gravity further cools the irradiation area, which results in a certain cooling effect, before the laser beam strikes the actual armor plate after destruction of the sacrificial plate.
  • a liquid gas in particular cooled nitrogen, water, glycol, refrigerants, a repair cooling fluid, a gel or a foam is used as cooling fluid.
  • the armor element comprise a plurality of interconnectable chambers, wherein in each chamber is a component of a multi-component fluid which produces a cooling effect after mixing due to a chemical reaction.
  • the individual chambers can be connected to each other by the bombardment of the laser radiation by partition walls are designed and arranged such that they are destroyed by the incident laser radiation.
  • it can be provided between the individual chambers controllable via a controller device for connecting the respective chambers. For example, this may be provided between the chambers a valve.
  • a further advantageous embodiment provides that several armor elements are provided.
  • a large number of pollen be arranged distributed elements on the object to be protected, for example in the manner of a tiling arrangement.
  • the armor elements can be equipped with separate cooling systems. In the case of destruction of an armor element this can be easily replaced with the associated cooling system against a new armor element.
  • a structurally advantageous because simple design provides that several armor elements have a common cooling system. The result is a comparatively simple structure, since not every armor element must be equipped separately, for example, with a cooling unit for cooling the cooling fluid.
  • the cooling system can also have an electrical coolant, in particular a Peltier element.
  • the peltier element can be attached, for example, to the object-side rear side of the armor element and unfold there a cooling effect by energizing.
  • An advantageous embodiment provides that a laser radiation detecting sensor is provided for triggering an armor element.
  • the sensors detecting the laser radiation may be photosensitive sensors. As soon as they detect an incident laser radiation, the cooling system can be activated and the resulting heat dissipated.
  • the armor element has a plurality of optical active body to affect the irradiated laser radiation.
  • impairing the irradiated laser Radiation by means of a plurality of optical active bodies results in an improved protective effect.
  • High intensities of the laser radiation, which occur in an undisturbed laser beam in a locally limited space, are avoided.
  • the risk of destructive overstressing of the material due to the heat introduced by the laser radiation is significantly reduced by the impairment of the radiation. Due to the large number of optical active bodies, the impairment can be largely independent of the angle of incidence of the laser radiation.
  • An advantageous embodiment provides in this context further, that the active body are designed to reflect the laser radiation as a reflection body.
  • the reflection body has a reflective surface, in particular a mirror surface.
  • the reflection body can be mirrored over the entire surface or only partially mirrored.
  • the mirror surface may be provided with a highly reflective layer in accordance with the wavelength of the expected laser radiation.
  • the active bodies are designed to break the laser radiation as a refractive body. Even by refraction of the laser radiation, this can be affected. For example, a laser beam can be widened by refraction effects, resulting in lower intensities in the Einstrahlddling.
  • the refractive bodies consist of an optically transparent material.
  • the refraction bodies themselves are therefore hardly affected by the laser radiation when they strike. Untitled.
  • the laser radiation penetrates the refractive bodies without heating them appreciably.
  • the refractive bodies advantageously have a curved surface for widening the laser radiation.
  • the curved surface may be spherical, spherical or cylindrical, for example.
  • the active body or the refractive body may have a roughened surface to produce a scattering effect.
  • a further embodiment provides that the active bodies are designed to diffract the laser radiation as a diffraction body. Even by utilizing diffraction effects, the irradiated laser radiation can be impaired in such a way that lower intensities occur on the object to be protected.
  • the diffraction bodies have diffraction gaps.
  • the diffraction gaps can be produced, for example, by a coating applied to the diffraction bodies, by material differences provided within the diffraction bodies, or similar structures.
  • An advantageous embodiment which develops a particularly good protective effect provides that a plurality of active bodies are arranged one behind the other in the effective direction of the laser radiation.
  • the result is a kind of stepped protection arrangement, in which after failure or after passing through a more active body located in front of the laser radiation then hits a further active body.
  • the active bodies are arranged to each other such that a gradual deterioration of the laser radiation associated with a gradually reduced beam intensity results.
  • the active bodies are arranged as loose bulk material within a housing-like receptacle of the armor element. Due to the arrangement of the active body as loose bulk material, these have no preferred orientation, but are stochastically distributed within the corresponding receptacle. In that regard, certain active bodies are always optimally aligned to different directions of irradiation.
  • the recording is optically transparent at least on the threat side in the wavelength range of the laser weapons.
  • the incoming laser beam initially passes unhindered through the receptacle before it then enters the optically active body arranged in the receptacle. Destruction of the recording by the incoming laser radiation and thus, for example, a leakage of the arranged as a bulk active body is avoided.
  • the active bodies are arranged in the manner of a protective curtain.
  • the active bodies can be arranged like a curtain around the object to be protected.
  • the curtain can be opened or closed depending on whether a laser threat is present or not.
  • the active bodies are embedded in a carrier material which can be applied to the threat side of the armor element.
  • the carrier material may in particular be a act pasty material in which the active bodies are embedded. Similar to a sunscreen, the carrier material together with the active bodies in the case of a recognized laser radiation can then be applied to threatened areas, for example via a nozzle.
  • a further embodiment provides that the active bodies have a plurality of mutually angled surfaces running.
  • the mutually angled surfaces can be used, for example, as reflection, refraction or diffraction surfaces.
  • the active bodies are spherical.
  • reflection effects or refraction effects for impairing the laser radiation can be used on the spherical surfaces.
  • the armor element is arranged to be movable relative to the object. Due to the movable arrangement of the armor element relative to the object, the armor element can also be moved relative to the laser beam incident on the object. As a result, a locally limited to a single Einstrahlddling energy input is avoided. The energy of the laser beam is coupled in accordance with the movement of the armor element not locally in only one Einstrahlddling, but along the path of movement of the armor element over a larger area distributed in the armor element. The risk of material failure due to the heat introduced by the laser radiation is significantly reduced.
  • the armor element is arranged in front of a surface to be protected of the object and arranged to be movable in a direction parallel and / or transversely to the surface to be protected. By moving in parallel, the energy input of the laser beam can be distributed over the surface. By moving transversely to the surface to be protected, the protective element can be moved out of the focal position of the laser beam, whereby the energy density in the Einstrahlddling can also be lowered.
  • the armor element is arranged to be movable in several directions.
  • the armor element can be moved in a substantially vertical and additionally in a substantially horizontal direction.
  • the armor element is designed to be movable via a drive, in particular an electric, hydraulic or pneumatic drive.
  • the drive allows defined movement sequences to be transferred to the armor element.
  • the armor element is resiliently mounted. Due to the resilient mounting of the armor element, this can move automatically when mounted on a military vehicle due to the forces occurring during driving, for example.
  • a privacy shield is provided, through which the movements of the armor element are covered. By arranged in the beam path of the laser beam sight protection, the movements of the armor element for the attacker are not visible.
  • the privacy screen is located on the threat side of the armor element. net. It is therefore not possible for the attacker to anticipate the movements and to try to track the laser beam to the movements of the armor element, in order to deliberately take a certain point of the armor element under continuous firing.
  • the privacy shield covers at least the edges of the armor element. Covering the edges of the armor element is sufficient in most cases, since the movement of a particular plate-shaped armor element can usually only be seen at the edges.
  • a structurally advantageous embodiment provides that the privacy shield is designed to be stationary and the armor element is movable in the visual shadow of the privacy screen.
  • the armor element is arranged in an intermediate region between an outer surface of the object to be protected and the privacy screen.
  • the privacy screen is designed to be optically transparent in a narrow-band wavelength range.
  • the wavelength range in which the privacy screen is optically transparent may be adjusted according to the wavelength of the laser weapon.
  • the screen is transparent to the laser beam, so that it is not impaired upon irradiation and the laser beam passes unhindered through the screen.
  • This embodiment is particularly suitable for laser radiation in the UV or IR wavelength range, which lies outside of the visually perceptible by the human eye spectrum.
  • the laser beam radiates unhindered through the privacy screen on the Armor element moving behind the screen, which is not visible to the attacker. The attacker sees the situation as if the laser beam were absorbed by the surface without any effect whatsoever.
  • the laser armor has a plurality of armor elements arranged movably, which are distributed in a tiling manner over the object to be protected.
  • armor elements designed essentially as identical parts can also be used to protect larger objects. Should one of the armor elements, for example, be damaged by an enemy laser shot, this can be easily replaced with a new armor element.
  • the armor elements may be designed as protection modules that attach to the object with a few simple steps or can be removed from this.
  • An advantageous for the protective effect of the laser armor embodiment provides that the armor elements are arranged in multiple layers. The result is a redundant arrangement of armor elements such that in case of failure of an outer layer of armor elements of the laser beam strikes a more inner layer.
  • each layer has a plurality of armor elements, wherein the directions of movement of the armor elements in two adjacent layers are different.
  • the Armor elements are automatically set in motion. It is not necessary to constantly move the armor elements, but only in the case of a specific threat situation, which is reliably detected by the sensors.
  • the armor element is designed according to one or more of the aforementioned features.
  • Fig. 9 - 12 are schematic views of different versions of armor elements with optical active bodies.
  • Fig. 13 - 18 are schematic views of different embodiments of a
  • Laser armor with a movable armor element Laser armor with a movable armor element.
  • FIG. 1 shows a perspective, highly schematic view of an object 10, which is designed to be protected by a laser armor 1 against the bombardment of laser weapons.
  • the object 10 may be an immobile object, such as a building or bunker, or a mobile destination, such as a military vehicle, and in particular a military land vehicle.
  • the laser armor 1 serves to protect against laser weapons, which according to the invention are to be understood as all beam weapons operating by means of concentrated radiation.
  • the laser armor 1 consists of a plurality of tenterhooks distributed over the object 10 in a tiling manner. rungs instituten 2, which are arranged in front of a surface to be protected of the object 10. While the representation in FIG. 1 reveals an embodiment of the laser armor 1 in which the armor elements 2 are arranged only on one side of the object 10, it is understood that the armor armor 1 also comprise armor elements 2 on the remaining sides of the object can depend on which side the threat is to be expected. In a military vehicle, it is advisable to provide all sides of the vehicle as well as the vehicle roof with armor elements 2 and not only to armor the vehicle floor against laser bombardment, since the firing by laser weapons usually takes place from the side or from above.
  • the individual armor elements 2 are provided by plate-shaped geometry and with a cooling system 3 for deriving introduced by the laser radiation heat.
  • the cooling system 3 is an active cooling system 3, which is supplied with energy for the purpose of cooling, for example for operating a cooling unit or for operating pumps P.
  • several armor elements 2 have a common cooling system 3
  • each armor element 2 is equipped with its own cooling system 3, cf.
  • Fig. 5 As shown in Fig. 1, the armor elements 2 each have a part of a cooling circuit 4.
  • the armor elements 2 are distributed in a scale over a surface of the object 10 to be protected, and the cooling circuit 4 is guided meandering through several armor elements 2.
  • the armor elements 2 have for this purpose in each case pieces, which can be connected to corresponding pieces of pipe of an adjacent armor element 2, for example by nesting, to form in this way a closed cooling circuit 4.
  • a cooling fluid flows, which receives 2 heat when passing through the armor elements and this emits at another point as waste heat q from .
  • the cooling circuit 4 is connected to a waste heat circuit 9 via a refrigerant circuit 8 forming a type of refrigeration unit.
  • the refrigerant circuit 8 consists in a conventional manner of an evaporator 8.1, in which the heated by the laser radiation cooling fluid with release of heat to vaporization of the flowing within the refrigerant circuit 8 refrigerant.
  • the vaporized refrigerant is conducted via a compressor 8.2 into a heat exchanger 8.3, in which the refrigerant gives off its heat to the waste heat circuit 9.
  • the refrigerant liquefies in parts, after which it is then returned via a throttle 8.4 in the evaporator 8.1, where it then evaporates with renewed absorption of the laser radiation introduced energy.
  • FIG. 1 shows a laser armor 1 with a closed cooling circuit 4 in which the cooling fluid circulates
  • FIGS. 2 to 7 show embodiments in which the cooling fluid 11 does not necessarily circulate in a cooling circuit 4.
  • a spraying device 5 is provided in each case.
  • the cooling fluid 11 is atomized under increased pressure and applied to a surface to be cooled of the armor element 2.
  • the spray devices 5 are arranged such that the threat side of the armor elements 2 is sprayed.
  • the cooling fluid 11 absorbs heat at the bottom of the runner and discharges it.
  • FIG. 4 Of quite similar construction is the embodiment of FIG. 4, in which the spray devices 5 are not arranged on the threat side, but on the object side of the armor elements 2.
  • the spray devices 5 are located in a gap between the armor elements 2 and the object 10 to be protected, so that they are not visible to an attacker from the outside.
  • the spraying devices 5 are arranged in the interior of the armor elements 2.
  • the spray devices 5 are supplied with cooling fluid 11 via an inlet 2.2.
  • the cooling fluid 11 is sprayed into the interior of the armor elements 2 such that it is wetted over a large area with cooling fluid 11.
  • the cooling fluid 3 flows down under the influence of gravity and finally leaves the armor element 2 via outlets 2.1. Subsequently, the cooling fluid 11 can either escape into the environment or be cooled in a cooling circuit 4 and then again guided over the inlet 2.2 in the interior of the armor element 2.
  • FIG. 5 shows an embodiment of an armor element 2, in which an armor element 2 is provided with a separate cooling system 3.
  • the armor element 2 is assigned a separate cooling circuit 4.
  • the inlet 2.2 In the upper part of the armor element 2 is the inlet 2.2, or in the embodiment of FIG. 5, two inlets 2.2.
  • a spraying device 5 is arranged, via which the cooling fluid 11 is sprayed into the interior of the armor element 2.
  • the interior of the armor element 2 has a chamber 6.
  • the cooling fluid 1 1 collects within the chamber 6 and leaves it via the outlet 2.1.
  • the cooling fluid 3 After leaving the armor element 2, the cooling fluid 3 is driven via a pump P after flowing through the cooling circuit 4 again fed to the inlet 2.2.
  • the cooling fluid 11 may first undergo cooling before it reaches the inlet 2.2, for example by dissipating heat to a refrigerant circuit, as has already been explained with reference to the illustration in FIG.
  • Fig. 7 shows an embodiment similar to that of Fig. 5, in which a plurality of chambers 6 connected in series are provided, which contributes to a more uniform cooling effect.
  • the individual chambers 6 are arranged cascaded to one another.
  • the cooling fluid 11 which accumulates in a lower chamber 6 in a lower chamber 6 is guided via a spray device 5 provided in the upper region of an underlying chamber 6, so that the cooling fluid 1 1 successively passes through a plurality of spray devices 5. This results in a kind of cascade with good cooling effect.
  • Fig. 6 shows an embodiment in which the armor element 2 is completely filled with cooling fluid 1 1.
  • the cooling fluid 3 enters the interior of the armor element 2 and leaves it via the outlet 2.1, taking along the laser radiation into the armor lining.
  • ment 2 coupled heat.
  • a cascaded arrangement with multiple chambers 6 improve the cooling effect.
  • FIG. 8 shows an embodiment in which the armor elements 2 of the laser armor 1 are preceded by a sacrificial plate 7.
  • the sacrificial plate 7 is designed in the manner of a Kuhlfluidreservoirs and acts as a kind of passive cooling system in which even without the supply of external energy, a certain cooling effect is generated.
  • the cooling fluid 11 provided inside the sacrificial plate 3 then gradually emerges under the action of gravity, heat also being dissipated.
  • the effluent from the sacrificial plate 7 cooling fluid 11 can also produce a wetting of the armor elements 2 arranged behind it with the application of a certain cooling effect.
  • the armor elements 2 can also be provided with a plurality of optical active bodies 13, 14, 15, which will be explained below with reference to the illustrations in Figures 9 to 12, in which details of the cooling system 3 for reasons of Overview are not shown.
  • the armor elements 2 can each have a multiplicity of optical active bodies 13, 14, 15 for impairing the irradiated laser radiation. As a result, a weakening of the intensity of the laser radiation and thus a reduction of the required cooling capacity of the cooling system 3 is achieved. It will prevents laser beams with an intensity above the damage threshold of the object 10 to be protected from acting thereon.
  • the active bodies 13 are formed as a reflection body 13 and are located as loose bulk material in a box-shaped receptacle 2.3 of the armor element 2.
  • the optical active body 13 have a surface 13.1 consisting of an optically reflecting layer.
  • the reflective surface 13. 1 can extend over the entire optical active body 13 or only over partial areas of the active body 13.
  • the active bodies 13 according to the embodiment in Fig. 9 have a plurality of mutually angled extending surfaces 13.1, resulting in very different levels of reflection. When a laser beam strikes it is reflected at the corresponding surface 13.1 of the active body 13. After reflection has taken place, the laser beam then possibly impinges on another active body 13 and is reflected again.
  • the intensity of the laser beam acting on the object 10 decreases, so that - if the armor element 2 should be irradiated at all - it strikes the object 10 only with a significantly reduced intensity. Significant portions of the laser beam are also directed away from the object 10.
  • the armor element 2 shown in FIG. 10 is based on another physical mode of action.
  • optical active body 14 is provided partly of different geometry.
  • an incident laser beam such as in FIG. 10 exemplarily in orientalgezoge- NEN lines is shown affected by refraction, whereby the laser beam expands and thereby loses intensity.
  • the laser beam is affected not only by the refraction effects but also by reflections at the interfaces of the active bodies 14.
  • the active bodies 14 are designed to break the laser radiation as optically transparent refractive body 14.
  • a refraction of light takes place, whereby, after passing through a plurality of successively arranged refractive body, a weakening of the laser beam results in such that it has a significantly lower intensity when leaving the protective element 2.
  • the risk of destruction of the object 10 is also significantly reduced by this active body 14.
  • the diameter of the laser beam impinging on the threat side of the armor element 2 is widened to a multiple by passing through the refractive bodies 14, as a result of which the intensity of the laser radiation can be reduced to an uncritical level.
  • the active bodies 14 may have different geometries according to the schematic illustration. It is important that these have angled surfaces or round surfaces that are angled away from one another, at which the refraction of the light then takes place.
  • the active bodies 14, as shown in FIG. 10 may also be so-called steel dividers which transmit portions of the laser radiation with a specific beam property and reflect other parts of the laser radiation which do not have this beam property.
  • the active bodies 14, as shown in FIG. 10 may also be so-called steel dividers which transmit portions of the laser radiation with a specific beam property and reflect other parts of the laser radiation which do not have this beam property.
  • p- and s-polarized beam components can be separated from one another, which also results in a significant reduction of the radiated laser intensity results.
  • polarization filters can be provided on the active bodies 14.
  • the active body 15 shown in FIG. 11 is based on a further physical mode of action.
  • the active body 15 shown in FIG. 11 is a diffraction body 15.
  • the latter has a plurality of diffraction gaps 15. 1 at which the incident laser light is diffracted. This results in diffraction patterns with less intense laser radiation on the surface of the object 10 to be protected.
  • the active bodies 13, 14, 15 can always be arranged as loose bulk material within a housing-like receptacle 2.3 of the armor element 2.
  • different active bodies 13, 14, 15 can be mixed with reflective, refractive and diffractive properties, preferably as loose bulk material.
  • the receptacle 2.3 is of box-shaped geometry and is provided on the threat side with an optically transparent cover in the manner of a lid.
  • the cover can be made optically transparent in the region of the expected laser radiation in a narrow-band wavelength range.
  • the incident laser beam passes unhindered through the cover and is impaired only by the active bodies 13, 14, 15 lying behind it. Destruction of the cover is avoided in this way.
  • Another positive effect arises in such covers, which in an outside of the are visible to the human eye perceptible wavelength range are optically transparent. Because in these occurs, for example, a laser beam in the IR range through the cover, behind which he is then affected by the optical active body 13, 14, 15. Since this is imperceptible to the human eye, the attacker can not easily recognize these effects.
  • a carrier material which can be applied to the threat side of the armor element 2. Similar to a sunscreen cream, a multiplicity of smaller active bodies 13, 14, 15 can be embedded within the carrier material. Upon detection of a laser attack, the carrier material and with it the active bodies 13, 14, 15 can then be selectively applied to the threatened side of the object 10 to be protected.
  • FIG. 12 Another alternative arrangement of the active bodies 13, 14, 15 is shown in FIG. 12. In this there are a plurality of active bodies 13, 14, 15 in a kind of curtain arrangement. This type of curtain can be placed on the threat side of an object 10.
  • the incident laser radiation can be impaired by reflection, refraction or diffraction in such a way that the intensity of the laser radiation is attenuated independently of the irradiation direction of the incident laser beam.
  • the risk of material failure due to very intense radiation is significantly reduced.
  • the armor elements 2 can be arranged movable relative to the object 10, which will be explained below with reference to the illustrations in Figures 13 to 18, which details of the cooling system 3 as well as the optical active body 13, 14, 15 for reasons of clarity not are shown.
  • the armor elements 2 are arranged movable relative to the object 10. This ensures that a laser beam incident on the object 10 or the laser armor 1 acts on one and the same point for a prolonged period of time and if necessary unfolds a destructive effect there after a certain irradiation time.
  • the armor element 2 is movable in front of the surface 12 to be protected of the object 10 in the vertical direction Ri as well as in the horizontal direction R 2 .
  • By moving the armor element 2 relative to the object 10 there is also a relative movement with respect to the impinging laser beam, which therefore does not strike one and the same point for longer periods of time, thus significantly reducing the local energy input, so that destruction of the armor element 2 is not to be feared stand.
  • FIG. 13 shows two directions of movement of the armor element 2 in a surface parallel to the surface 12 of the object 10 to be protected
  • the armor element 2 is moved in the direction of the incident laser beam.
  • that of the laser weapon outgoing laser beam is focused directly into the surface of the object 10 into it, since the intensity of the laser radiation in the focus is greatest.
  • the armor element 2 can be moved out of this focus position, whereby the intensity of the laser radiation is lowered into its Einstrahldazzling. This also reduces the risk of destruction of the armor element 2 by the impinging laser radiation.
  • the movements of the armor element 2 can be initiated via a drive M.
  • the drive M may be a motor drive, such as an electric, hydraulic or pneumatic motor.
  • About the drive M armor element 2 can be defined defined in motion, for example via a kind of eccentric or similar devices.
  • a sensor S is also provided for detecting the incident laser radiation. These may be photosensitive sensors which detect the incident laser radiation. After detecting the laser radiation, the drive M can then be activated and the armor element 2 can be set in motion.
  • the armor element 2 may also be suspended resiliently, as shown in Fig. 17. It can be seen that the armor element 2 is coupled via a spring 24 to the object 10 to be protected. Such a resilient suspension is particularly suitable for mobile objects 10 and in particular for military land vehicles. Due to the forces occurring during driving, the armor element 2 is kept constantly in motion by deflecting the spring 24. Another advantage of this suspension via springs 24 is that the movement is purely shock-absorbing. is performed chastically, so that a tracking of the laser radiation according to the movements of the armor element 2 is not possible.
  • a privacy screen 23 is also provided, which will be discussed in detail below.
  • the privacy screen 23 is located on the threat side of the armor elements 2 of the laser armor 1 and at least partly covers it to its threat side.
  • the armor elements 2 are located in an intermediate region between the fixed object visually arranged against the object 10 screen 23 and the object 10. It results in a kind of gap in which the armor elements 2 can be moved.
  • the purpose of the blinds 23 is to make the movements of the armor elements 2 invisible to the attacker.
  • the privacy screen 3 is designed such that it covers the edges 2.4 of the armor elements 2 in such a way that they lie in the visible shadow of the privacy screen 23, cf.
  • the overlap of the edges 2.4 of the armor element 2 is chosen such that they do not emerge from the visual shadow of the screen 23 even with maximum movement of the armor element 2.
  • the movement of the otherwise planar armor element 2 is therefore not visible and it is certainly not readily possible to track the laser beam these movements.
  • FIG. 13 An alternative embodiment of the privacy screen 23 is shown in FIG. While the screen 23 in FIGS. 13 and 14 covers only the edges of the armor element 2 and otherwise openings for the passage of the Laser radiation, covers the screen protector 23 of FIG. 15, the armor elements 2 over the entire surface. In this arrangement, the armor elements 2 are distributed in a tiled manner over the object and lie completely in the visual shadow of the privacy screen 23.
  • the privacy screen 23 is kept optically transparent in a narrow-band wavelength range, for example in the wavelength range of 1064 nm.
  • the optically transparent wavelength range is matched to the wavelength of the expected laser gun, continuing the above wavelength example to an Nd: YAG laser. The effect achieved by this is the following:
  • the privacy screen 23 Since the privacy screen 23 is optically transparent to the incident laser beam, it passes through the privacy screen 23 virtually unhindered and strikes the armor element 2, which moves relative to the object 10. However, the movements of the armor element 2 are not visible to the attacker, since the wavelength of the laser radiation is often outside the range visible to the human eye or at least difficult to recognize due to the narrow band of optical transparency of the screen 23 for the attacker. The attacker therefore has an image in which the laser beam virtually disappears in the privacy screen 23 without causing a significant effect here. Because even with the destruction of one of the armor elements 2, this would not be visible to the attacker 2 due to the privacy screen 23.
  • FIG. 18 An improved in terms of their protective effect embodiment finally shows the illustration in Fig. 18.
  • the armor elements 2 are arranged in multiple layers Li, L2, resulting in a redundant arrangement such that in case of failure of one of the armor elements 2 an outer layer L2 the laser radiation in a next step to a further Internal situation Li meets.
  • the movements of the armor elements 2 are advantageously oriented differently in the layers Li, L2.
  • the armor elements 2 may consist of armor steel and be designed in the manner of ballistic effective armor plates.
  • the protective plates may also be composite armor plates in which a multiplicity of ballistically active active bodies, for example of a ceramic material, are embedded in a matrix material.
  • a configuration with a plurality of optical active bodies 13, 14, 15 can also be provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Lasers (AREA)
  • Laser Beam Processing (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

L'invention concerne un blindage de protection contre le laser permettant de protéger un objet (10) contre des armes laser, et comprenant un élément de blindage (2), un système de refroidissement (3) étant prévu pour dissiper la chaleur introduite dans l'élément de blindage (2) par les armes laser. L'invention concerne également un procédé de protection d'un objet (10) contre des armes laser et un véhicule doté d'un blindage de protection contre le laser.
EP14747809.3A 2013-07-11 2014-07-08 Blindage de protection contre le laser Active EP3019813B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013107365.4A DE102013107365C5 (de) 2013-07-11 2013-07-11 Laserpanzerung
PCT/DE2014/100237 WO2015003690A1 (fr) 2013-07-11 2014-07-08 Blindage de protection contre le laser

Publications (3)

Publication Number Publication Date
EP3019813A1 true EP3019813A1 (fr) 2016-05-18
EP3019813B1 EP3019813B1 (fr) 2018-06-27
EP3019813B2 EP3019813B2 (fr) 2021-12-01

Family

ID=51292757

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14747809.3A Active EP3019813B2 (fr) 2013-07-11 2014-07-08 Blindage de protection contre le laser

Country Status (4)

Country Link
EP (1) EP3019813B2 (fr)
DE (1) DE102013107365C5 (fr)
ES (1) ES2683387T5 (fr)
WO (1) WO2015003690A1 (fr)

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DE102020107650A1 (de) 2020-03-19 2021-09-23 Rheinmetall Air Defence Ag Laserwaffensystem
CN112880482B (zh) * 2021-01-26 2023-02-21 中国人民解放军陆军工程大学 一种军用方舱板及其制作方法

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Also Published As

Publication number Publication date
DE102013107365C5 (de) 2021-03-25
DE102013107365A1 (de) 2015-01-15
EP3019813B1 (fr) 2018-06-27
WO2015003690A1 (fr) 2015-01-15
ES2683387T5 (es) 2022-03-22
EP3019813B2 (fr) 2021-12-01
ES2683387T3 (es) 2018-09-26
DE102013107365B4 (de) 2015-02-12

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