AT521700B1 - Light module - Google Patents

Abstract

In order to specify a light module for a training weapon which emits a light beam when the trigger is actuated, the light module comprises a housing (G) with a gas inlet opening (30) and a pressure piston (4) which is located inside the housing (G) from a rest area (R ) is movable into a contact area (K) and vice versa and comprises a light source (1) connected to the housing (G) for emitting the light beam. A piston spring (12) is provided, which is relaxed when there is a normal gas pressure acting on the pressure piston (4) and holds the pressure piston (4) in the rest area (R) and acts on the pressure piston (4) through the gas inlet opening (30) Gas overpressure (p1) the piston spring (12) is compressed and the pressure piston (4) is moved into the contact area (K). When the pressure piston (4) is located in the contact area (K), an electrical circuit (i) is closed, whereby the light source (1) is activated. When the pressure piston (4) is in the rest area (R), the electrical circuit (i) is open, which deactivates the light source (1).

Description

description

LIGHT MODULE The subject invention relates to a light module comprising a housing with a gas inlet opening and a pressure piston, which is movable within the housing from a rest area into a contact area and vice versa, and comprising a light source connected to the housing for emitting a light beam.

Airsoft weapons are designed to shoot plastic balls with a diameter of 6 mm with an energy of about 5 joules and usually comprise an outer barrel and an inner barrel. The outer barrel primarily serves the optics, is usually designed as a thin-walled plastic body or metal body and can, for example, replicate a sled of a pistol. The inner barrel is attached to a so-called "pseudo-cartridge store" or to an unlocking link. Furthermore, the inner barrel is usually designed as a brass tube with 6 mm inner diameter and 8 mm outer diameter. The outer barrel can be connected to the inner barrel on the muzzle side in particular in the case of airsoft pistols and airsoft revolvers.

It may be desirable for training purposes to modify airsoft weapons or real firearms in such a way that no projectile is fired when the trigger is actuated, but a light beam is emitted with a predetermined period of time.

US 8,568,143 discloses an airsoft weapon with a special barrel, comprising a laser diode. US 9,417,035 B2 shows a laser device which can be screwed onto a barrel of a real firearm. For this purpose, a thread must be provided at the mouth of the barrel for mounting the laser device, which is prohibited in some countries. An external power supply is also provided in a cuboid housing under the barrel. The laser device shown is therefore fundamentally suitable for long weapons or handguns with an over-long barrel. In both cases, handling the weapon with the laser module mounted is made significantly more difficult, since the weight distribution is strongly influenced by the laser module screwed onto the barrel. In addition, the overall length of the weapon is increased by a mounted laser device. US 2002/0194765 A1 discloses a special barrel with a laser, which cannot be used universally, but rather is integrated into the barrel of the weapon. The laser is activated electrically via the trigger. US 2012/0129136 A1 also shows a laser module which is also integrated in a special barrel, but is activated by a vibration that occurs. No. 9,759,521 B2 again shows a laser module which is activated by an audio signal or by a pressure switch. The laser module can thus be activated by using blank cartridges. US 2018/0023923 discloses a laser module that is screwed onto the barrel of a weapon. The laser itself is activated by a firing pin of the weapon, a microcontroller being provided to set the duration of the laser beam emitted. The sled does not move when the shot is fired.

It is an object of the present invention to provide a light module for a training weapon, which emits a light beam when the trigger is actuated.

This object is achieved in that a piston spring is provided, which is relaxed when the normal pressure acting on the pressure piston and holds the pressure piston in the rest area and at a gas pressure acting through the gas inlet opening on the pressure piston, the piston spring is compressed and the pressure piston in the Contact area moved. In the case of pressure pistons located in the contact area, an electrical circuit is closed, whereby the light source is activated. When the pressure piston is in the resting area, the electrical circuit is open, which deactivates the light source.

A major advantage of the light module according to the invention is that the number of electronic components can be kept low. In particular, there are no sensors (pressure sensors, etc.) for triggering the light beam and / or for controlling the light duration / 16

AT 521 700 B1 2020-04-15 Austrian patent office for the light beam is necessary because the circuit is located in the contact area

Pressure piston is closed. The circuit is therefore closed over the period over which the pressure piston is in the contact area. Any elastic element that can be mechanically tensioned and relaxed can be regarded as a piston spring.

The use of a spiral spring as a piston spring is particularly advantageous.

[0008] The gas inlet opening can be located, for example, at an axial end of the housing. The light source is preferably located at an axial end of the housing opposite the gas inlet opening and can, for example, be screwed into the housing of the light module by means of worm screws. The pressure piston is held in the resting area by the piston spring, provided that no gas pressure acts on the pressure piston. However, if a gas overpressure acts on the pressure piston via the gas inlet opening of the housing, the pressure piston moves against the spring force of the piston spring and closes an electrical circuit, as a result of which the laser diode emits a light beam. A gas pressure that exceeds a certain threshold is referred to as gas overpressure. With the prevailing gas overpressure, the pressure piston is preferably not only in a contact position, but rather in a contact area with a contact start position and a contact end position. However, the pressure piston does not necessarily have to reach the contact end position during the prevailing gas overpressure. Since the electrical circuit is closed while the pressure piston is in the contact area, depending on the gas overpressure and / or the design of the piston spring, a certain contact duration, which in turn determines the duration of the light beam, is achieved. This is particularly advantageous since it is often necessary for the light beam to have a certain duration in order to detect a target hit by the light beam.

If there is no gas overpressure on the pressure piston, i.e. If the gas pressure on the piston falls below a certain threshold, the pressure piston is moved back into the rest area by the spring force of the piston spring. As soon as the pressure piston leaves the contact area, it is in the resting area, which interrupts the electrical circuit and the light source is deactivated. No light beam is emitted in the relaxation area. The rest area can be defined by an initial rest position and an end rest position, the pressure piston not necessarily having to reach the end rest position.

The pressure piston can touch a contact spring in the contact area to close the electrical circuit. Any elastic element can be regarded as a contact spring. The use of a spiral spring as a contact spring is particularly advantageous. The pressure piston thus touches the contact spring as soon as it enters the contact area. If the pressure piston penetrates further into the contact area, the contact spring is compressed by the pressure piston and of course continues to be touched. If the pressure piston leaves the contact area and thus reaches the resting area, the contact spring is no longer touched and the electrical circuit is opened. This contact itself can, for example, bring about electrical contacting of the pressure piston and the contact spring, with which, for example, the electrical circuit can be closed directly via the pressure piston and the contact spring. For this purpose, it is advantageous if the contact spring is designed to be electrically conductive.

Preferably, the housing comprises a pulse tube and a front tube, the light source being arranged in the front tube and the gas inlet opening in the pulse tube.

A connection between the pulse tube and the front tube can be made for example via a thread or a bayonet lock. The housing can thus be opened in a simple manner by removing the front tube from the pulse tube. Components of the light module can then be exchanged, even if the light module is mounted on an Airsoft weapon or a firearm, since the pulse tube can remain in the Airsoft weapon or firearm in the meantime.

The housing can comprise a battery and / or an accumulator for supplying power to the circuit.

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AT 521 700 B1 2020-04-15 Austrian Patent Office [0014] This is advantageous because it does not require an external energy supply. A battery compartment can also be provided, which comprises both the light source and the batteries. If the housing comprises a front tube and a pulse tube, the entire battery compartment can preferably be removed and reinserted after removing the front tube. Depending on the structure of the light module, the light source and then the battery compartment can also be removed.

The electrical circuit can be performed via the pressure piston and / or the housing.

[0016] The electrical circuit can be closed, for example, directly via the pressure piston. In particular when using a contact spring, the electrical circuit can be closed via a contact of the pressure piston and the contact spring. Furthermore, the pressure piston can be in electrical contact with the housing, with which the housing can also be integrated into the electrical circuit.

It can be arranged in the housing an elongated hole extending in the longitudinal direction.

The elongated hole can serve to reduce the excess gas pressure.

A transverse pin can be arranged in the pressure piston, which moves along the elongated hole when the pressure piston is moving and restricts the movement of the pressure piston.

When the cross pin reaches one end of the elongated hole, the pressure piston cannot move any further. The range of motion (including the rest area and the contact area) of the pressure piston can thus be restricted in a simple manner.

[0021] An airsoft weapon can comprise a light module according to the invention, an inner barrel of the airsoft weapon being replaced by the light module.

The light module according to the invention can thus be used by replacing an inner barrel of an airsoft weapon with the light module.

Since the inner barrel is replaced by the light module, it is not necessary to attach an adapter to an existing inner barrel of a gas-powered airsoft weapon. Since the module is not mounted in front of the muzzle of an inner barrel, the overall length and weight distribution along the airsoft weapon only change slightly at best. Since the light source is preferably positioned centrally in the light module, the light source points in the same direction as the replaced inner barrel. In contrast to light modules arranged on the inner barrel, there is no need to adjust the orientation of the light source.

[0024] The inner barrel is preferably connected to the outer barrel by means of a muzzle nut. If the muzzle nut is located at the muzzle outside the airsoft weapon, it can be clearly indicated that the airsoft weapon is not a real firearm. Furthermore, it is advantageous if the color of the muzzle nut is adapted to the color of the laser (red, green, blue, orange, infrared, etc.).

The housing of the light module preferably has the same outer dimensions as an inner barrel of an airsoft weapon, wherein the light module can of course also be made longer or shorter than the inner barrel.

An exchange of elements of the light module, for example the batteries, a battery compartment, etc. can be made by removing the muzzle nut and pulling out the respective elements. After removing the muzzle nut, it can also become the laser module from the airsoft weapon.

The light module can also be attached to a pseudo-cartridge bearing of an airsoft weapon. This is particularly advantageous if the airsoft weapon has no inner barrel to be replaced, as is often the case with airsoft rifles. Of course, the light module can also be attached to both the pseudo-cartridge chamber and the outer barrel of an airsoft weapon.

[0028] The light module according to the invention can also be used with a firearm,

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AT 521 700 B1 2020-04-15 Austrian patent office by inserting and fixing it in the barrel of the firearm.

The light module can thus not only replace an original inner barrel of an airsoft weapon, but can also be inserted into the barrel of a real firearm. If, instead of ballistic ammunition, gas pressure ammunition is used, which releases gas pressure when the shot is fired, the real firearm can be used in combination with the light module for training purposes. For this purpose, the light module can be attached to the muzzle, for example using a muzzle nut corresponding to the caliber of the weapon.

[0030] Additionally or instead, the light module can also be attached to the cartridge chamber of the firearm. This can be done by means of a counter cone, which is arranged in the (usually conical) transition between the cartridge chamber and the barrel in order to center the light module in the barrel.

The gas overpressure for activating the laser diode is preferably emitted from an air energy cartridge. An air energy cartridge is a cartridge that is similar to a real cartridge, but is pressurized with gas. This pressure can escape from the cartridge head when the air energy cartridge is activated. This is done, for example, by hitting a hammer or firing pin of the firearm on the cartridge bottom, analogously to firing ballistic ammunition.

The air energy cartridge ensures pistols and semi or fully automatic rifles for repeating the slide and thus for ejecting the air energy cartridges. With revolvers or non-automatic rifles, the air energy cartridge must be loaded and removed manually. As the light module is therefore not attached to the barrel in front of the muzzle, e.g. need to be screwed on, no adjustment of the light source is required. If the light module is pushed and fastened into the barrel of a weapon, the light module or the light source is already centered and aligned with the barrel, so that no additional adjustment of the light source is required. Since the light source is preferably arranged centrally at the first end of the housing, the light beam points exactly in the direction of the barrel. This allows the light beam to replicate the trajectory and impact of a projectile.

In the case of handguns, the weight of the light module is also distributed over the entire barrel and thus offers a much better weight distribution than known systems which are attached to the muzzle. The light module is advantageously designed such that it protrudes slightly from the barrel of the weapon, preferably by two to seven millimeters. This means that it can be recognized from the outside that the firearm is modified in such a way that it does not fire live ammunition. Furthermore, the light source is more accessible and can be readjusted more easily.

However, the light module can also be adapted to the length of the inner barrel or the barrel of a real firearm.

Depending on the intended use of the light module, the piston spring and / or the pressure piston can be adapted both to the gas pressure of a particular airsoft weapon or firearm and to the desired contact duration. The strength of the piston spring and / or the length of the piston spring and / or the pressure piston can be adjusted. For example, carbon dioxide generates more pressure than so-called flow gas, the pressure that occurs depends on the filling quantity of the carbon dioxide cartridge. An air energy cartridge, on the other hand, can generate a gas pressure of over 100 bar.

Furthermore, an adjustment to different barrel lengths can be made by using pressure pistons of different lengths. The overpressure occurring at the pressure piston depends on the arrangement of the pressure piston in the rest area. The closer the pressure piston comes to the pseudo-cartridge bearing, the higher the overpressure that occurs, since a smaller volume on the side of the gas inlet opening naturally means a higher pressure. Thus, with a smaller volume (which may be necessary with a shorter design) a much stronger piston spring will be used than

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AT 521 700 B1 2020-04-15 Austrian patent office for a larger volume (e.g. for a longer run).

In any case, the pressure piston spring must be designed such that the electrical circuit is closed in the contact area.

Preferably, however, the other parts of the light module according to the invention can be used for different pressures, barrel lengths and (airsoft) weapon types, which of course has great production-related advantages.

Advantageously, the housing of the light module is cylindrical and has an outer diameter of 8mm. Thus, the attachment to a pseudo-cartridge store is easy to carry out and can be carried out by an airsoft gun owner himself. Since the (e.g. knocked out) inner barrel is often changed during maintenance work in order to increase the hit rate, the Airsoft gun owner is usually familiar with changing an inner barrel. For example, a real 9mm caliber weapon can be equipped with a light module with an outer diameter of 8mm.

Preferably, the housing has an inner diameter of 6 mm. The inside diameter is particularly preferably less than 6 mm, which means that threads of size M6 can be used in the light module.

The present invention is explained in more detail below with reference to Figures 1 to 4b, which show exemplary, schematic and non-limiting advantageous embodiments of the invention. It shows

Fig. 1 Fig. 2a an external view of a light module, a cross section through the light module, with pressure piston located in the rest area, Figure 2b a cross section through the light module, with pressure pistons located in the contact area, 3a, b 4a, b a light module that replaces the inner barrel of an airsoft weapon, a light module that is arranged in the barrel of a firearm.

1 and 2a, b each show an external view and a cross section of an embodiment of the light module according to the invention, an enlarged section being shown in each case. The light module can be used both as an inner barrel in airsoft weapons and as a barrel for real firearms, which is why the housing G of the light module is preferably cylindrical. The light module comprises a light source 1, which is connected to the housing G. This means that the light source 1 is arranged in or on the housing G, for example screwed into the housing G. The light source 1 is preferably arranged centered on a first axial end of the housing G. The housing G has a gas inlet opening 30, which is preferably arranged at a second axial end of the housing G opposite the first end.

The light source 1 is designed to emit a light beam when activated, with no light beam being emitted when the light source 1 is deactivated. A laser diode is preferably used as the light source 1, whereby a laser beam is emitted as the light beam. Usually, in particular laser diodes as light sources 1 do not have a preset light duration and only emit the light beam during activation.

A piston spring 12 is arranged in the housing G. The piston spring 12 holds the pressure piston 4 in a rest area R when the pressure piston 4 is not subjected to a gas overpressure p1 through the gas inlet opening 30. The gas pressure pO prevailing on the pressure piston 4, which is of course lower than the gas pressure p1, is referred to as normal pressure. The piston spring 12 is thus relaxed at normal pressure or at least only so slightly tensioned that the pressure piston 4 is in the rest area R. The piston spring 12 can be firmly connected to the pressure piston 4. Alternatively, the piston spring can be firmly connected to the housing G.

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AT 521 700 B1 2020-04-15 Austrian Patent Office [0050] The pressure piston 4 is shown here by way of example as a cylinder with an associated cylindrical head with an increased diameter. This enables a simple connection of the piston spring 12 to the pressure piston 4 since it can rest on the piston head, in particular since the piston spring 12 is designed as a spiral spring. Of course, any other elastic element that can be mechanically tensioned and relaxed could also be used as the piston spring 12.

If, however, a gas overpressure p1 acts on the pressure piston 4 through the gas inlet opening 30 (FIG. 2b), the piston spring 12 is tensioned and the pressure piston 4 is moved from the rest area R into the contact area K. If the pressure piston 4 is in the contact area K, then an electrical circuit i is closed, whereby the light source 1 is activated. If, on the other hand, the pressure piston 4 is in the rest area R, the electrical circuit i is open, with the result that the light source 1 is deactivated (FIG. 2a). A contact spring 11 can be provided, which is touched by the pressure piston 4 located in the contact area K, whereby the electrical circuit i is closed. The contact spring 11 itself can also be part of the electrical circuit i, in particular if it is designed to be electrically conductive and is touched by the pressure piston 4 located in the contact area K. This is particularly advantageous if the pressure piston 4 is also part of the electrical circuit i in the contact region K, as described below.

The position of the bottom of the pressure piston 4 is used in the figures to determine whether the pressure piston 4 is in the contact area K or rest area R. Of course, any other reference point of the pressure piston 4 could be used instead, contact area K and rest area R also having to be adapted.

The housing of the light module 1 can comprise a front tube 2 and a pulse tube 3, which is connected to the front tube 2. The connection between pulse tube 3 and front tube 2 can be made via a thread or a bayonet lock. The light source 1 is preferably screwed into the front tube 2 via a thread. Batteries and / or accumulators 7 for powering the circuit or the light source 1 can also be accommodated in the front tube 2. The batteries and / or accumulators 7 can be replaced, for example, by removing the front tube 2 from the pulse tube 3. As a result, for reasons of clarity, only “batteries 7” are used instead of “batteries and / or accumulators 7”, which of course does not preclude the use of accumulators or a mixing of batteries and accumulators.

The movement of the pressure piston 4 can be limited by the transverse pin Q arranged in the housing G. The housing G can also have at least one elongated hole LL arranged in the longitudinal direction, which can serve to reduce the excess gas pressure p1.

If a cross pin Q is arranged on the pressure piston 4, it can cooperate with an elongated hole LL arranged in the housing G in order to restrict the movement of the pressure piston 4. In particular, the elongated hole LL can also be arranged such that it is fundamentally covered by the pressure piston 4 when it is in the rest area R. Furthermore, the elongated hole LL is advantageously released when the pressure piston 4 is located in a partial area of the contact area K. This allows a reduction in the gas overpressure p1 when the pressure piston is located in the partial area of the contact area K. The partial area and the elongated hole LL are preferably configured such that the gas pressure p1 is kept below a predetermined maximum pressure.

The pressure piston 4 is preferably electrically conductive. The electrical circuit i can then lead over the pressure piston 4 and the housing G, a special embodiment of the electrical circuit i being shown in FIGS. 1-4b. The closed circuit i is shown in Fig. 2b. The (here electrically conductive) pressure piston 4 is in electrical contact with the housing G. A first pole P1 of the light source 1 is in electrical contact with the housing G (here with the front tube 2). Furthermore, a second pole P2 of the light source 1 is in contact with a first battery pole 71 of the battery 7, for example via an electrically conductive spring element 5. The spring element 5 can be formed by an insulating body

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AT 521 700 B1 2020-04-15 Austrian patent office (not shown) from front pipe 2. The second battery pole 72 of the battery 7 is in electrical contact with a (here electrically conductive) contact spring 11, wherein the contact spring 11 can be insulated from the housing via an insulating body 6. The electrical contacting of the second battery pole 72 of the battery 7 with that of the contact spring 11 takes place here via a conductive connection 8, an insulating body 6 for the electrical insulation of the conductive connection 8 from the housing G or the pulse tube 3 also being provided here. The individual insulating bodies 6 can of course also be connected to one another, e.g. riveted or screwed or be designed as an insulating body 6. The conductive connection 8 is shown here as an arrangement of cylinders connected to one another. Of course, the conductive connection can also have a different shape or the second battery pole 72 can be connected directly to the contact spring 11.

The pressure piston 4 is positioned in the rest position R (Fig. 2a) such that it is in contact with the housing G (here pulse tube 3), but does not touch the contact spring 11. For this purpose, the piston spring 12 is provided, which holds the pressure piston 4 in the rest area R in the untensioned state, as a result of which the pressure piston 4 is not in contact with the contact spring 11. The piston spring 12 is preferably stiffer than the contact spring 11. The electrical circuit i would thus in the illustrated embodiment from the first battery pole 71 via the spring element 5, the second pole P2 of the light source and further from the first pole P2 of the laser diode 1 via the housing G (ie via front tube 2 and pulse tube 3) via the pressure piston 4, the (here electrically conductive) contact spring 11 and the conductive connection 8 lead to the second pole 72 of the battery 7. However, since the pressure piston 4 is in the rest area R, in contrast to FIG. 2a, it is not in contact with the contact spring 11, which opens the electrical circuit and thus deactivates the light source 1.

Contact spring 11, conductive connection 8, etc. can be held in the desired position in the housing G using screws. Likewise, the insulating bodies 6, 11 can be held in a positive position in the housing or in the impulse tube 3 by screws. The same screws can also be used to hold both contact spring 11, conductive connection 8 and insulating body 6 in position. For this purpose, for example, a suitable spacer sleeve can be screwed onto the respective screws.

Thus, before and after firing the pressure piston 4 is in the rest area R, whereby the electrical circuit i is opened. A gas overpressure p1 can now act on the pressure piston 4 via the gas inlet opening 30. This excess gas pressure p1 can be generated, for example, by a flow gas or compressed carbon dioxide, as is customary in airsoft weapons.

3a, b shows a light module which is inserted into the outer barrel A of an airsoft weapon and thus replaces the inner barrel. A gas pressure source (e.g. CO2 cartridge or flow gas container) can be arranged in the handle of the airsoft weapon. If the trigger is actuated, a valve in the gas pressure source opens, with which the gas pressurized with gas pressure p1 reaches the gas inlet opening 30 of the housing G (here the pulse tube 3) via the pseudo-cartridge bearing AS. An elastic sealing element can be provided at the gas inlet opening 30, which ensures that the majority of the gas overpressure p1 actually gets into the housing G from the gas overpressure source. The functioning of the light module itself is described with reference to FIGS. 1 and 2a, b.

Also, as shown in Fig. 4a, b, an air energy cartridge 21 can be used in a firearm (here a 9mm Luger). An air energy cartridge 21 contains pressurized air which escapes when the shot is fired and thus generates a gas pressure p1. Of course, it is also possible to use a pop cartridge (blank cartridge) or any cartridge that generates a gas overpressure p1. Since there are no electronic components in the housing G in the area of the pressure piston 4, this is not a problem. For safety and pollution reasons, however, an air energy cartridge 21 is usually preferable to firing cartridges.

4a, b, the light module is inserted into the barrel L of the firearm. Since the

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AT 521 700 B1 2020-04-15 Austrian patent office

Firearm has a cartridge chamber with ammunition, the light module can be made shorter than a light module used in an airsoft weapon. This can be achieved by shortening the housing G (or the pulse tube 3) accordingly. A centering nut 20 and / or a centering screw 19, which preferably squeezes O-rings against the inside of the barrel L, can be used to center the light module, for example. When the trigger is actuated, the hammer or firing pin strikes the firearm on the cartridge base, which activates the mechanism of an air energy cartridge 21. The air energy cartridge LEP emits the gas overpressure p1, which is passed onto the pressure piston 4 via the gas inlet opening 30 of the housing G. The gas inlet opening 30 can also be designed as a bore in the centering screw 19. The centering screw 19 can also serve as a rear movement limitation for the pressure piston 4. The (fully compressed) piston spring 12 can limit the forward movement of the pressure piston 4.

The light module 1 is preferably arranged in the L barrel of a firearm in such a way that an air energy cartridge with a shortened cartridge head can be loaded, but a real cartridge with an unshortened cartridge head cannot. In the latter case, the front part of the cartridge chamber is already covered by part of the laser module, e.g. the centering screw 19 already occupied. It is then not possible with such a laser module 1 arranged in the barrel to load live ammunition with a cartridge head that is not shortened.

In a real firearm that is semi or fully automatic, the mass of the sled must be moved by the gas pressure p1, the air energy cartridge 21 must be pulled out of the cartridge chamber and ejected, the sled brought into its rearmost position, the cock cocked and a new one Air energy cartridge 21 are supplied from the magazine. Thus, when using an air energy cartridge 21 in a firearm, a higher gas pressure p1 is required compared to an airsoft weapon. The piston spring 12 can therefore be made stronger in a light module designed for firearms compared to a light module designed for airsoft weapons. When used in firearms, it is therefore also possible to dispense with elongated holes LL in the housing G in order to utilize the prevailing excess gas pressure p1 as well as possible.

However, the same light module can be used fundamentally for real firearms and airsoft weapons. If necessary, the strength of the piston spring 12 and / or the pressure piston 4 can be adapted and / or the housing or the front tube 2 and / or the pulse tube 3 can be replaced, the other components being equally suitable for firearms and airsoft weapons.

Claims (11)

1. Light module comprising a housing (G) with a gas inlet opening (30) and a pressure piston (4) which is movable within the housing (G) from a rest area (R) into a contact area (K) and vice versa and comprising one with the Housing (G) connected light source (1) for emitting a light beam, characterized in that a piston spring (12) is provided which is relieved of a normal gas pressure acting on the pressure piston (4) and the pressure piston (4) in the rest area (R) holds and with a gas overpressure (p1) acting through the gas inlet opening (30) on the pressure piston (4), the piston spring (12) is compressed and moves the pressure piston (4) into the contact area (K), that in the contact area (K) Pressure piston (4) an electrical circuit (i) is closed, with which the light source (1) is activated, and that in the pressure piston (4) located in the rest area (R) the electrical circuit (i) is open, with which the light source (1) deactivated is iviert. 2. Light module according to claim 1, characterized in that the pressure piston (4) in the contact area (K) touches a contact spring (11) to close the electrical circuit (i). 3. Light module according to claim 1 or 2, characterized in that the housing (G) comprises a pulse tube (3) and a front tube (2), the light source (1) in the front tube (2) and the gas inlet opening (30) in the pulse tube (3) is arranged. 4. Light module according to one of claims 1 to 3, characterized in that the housing (G) comprises a battery and / or an accumulator (7) for supplying power to the circuit. 5. Light module according to one of claims 1 to 3, characterized in that the electrical circuit via the pressure piston (4) and / or the housing (G) leads. 6. Light module according to one of claims 1 to 5, characterized in that a longitudinally elongated hole (L) is provided in the housing (G). 7. Light module according to claim 6, characterized in that a cross pin (Q) is provided in the pressure piston (4), when the pressure piston (4) is moving along the elongated hole (L) and restricts the movement of the pressure piston (4). 8. Use of a light module according to one of claims 1 to 7 with an airsoft weapon, wherein an inner barrel of the airsoft weapon is replaced by the light module. 9. Use of a light module according to claim 8, wherein the inner barrel is connected by means of a muzzle nut to an outer barrel (A) of the airsoft weapon. 10. Use of a light module according to one of claims 1 to 7 with an airsoft weapon, wherein the light module is attached to a pseudo-cartridge bearing of the airsoft weapon. 11. Use of a light module according to one of claims 1 to 7 with a firearm, wherein the light module is inserted and fixed in the barrel (L) of the firearm.