CN113819809B - Laser electronic target - Google Patents

Abstract

The invention discloses a laser electronic target, and belongs to the field of simulated shooting. The laser electronic target comprises a bottom plate, wherein the front surface of the bottom plate is a diffuse reflection reflecting surface, a plurality of light blocking material strips protruding forwards are arranged on the front surface of the bottom plate, a plurality of shooting areas which are not communicated with each other are formed by surrounding the light blocking material strips, optical fibers are respectively arranged in each shooting area, light pick-up surfaces and light emitting surfaces are respectively arranged on the optical fibers in each shooting area, the light pick-up surfaces of different numbers are arranged according to the sizes of the shooting areas, the light rays reflected by the diffuse reflection reflecting surfaces can be picked up by the light pick-up surfaces when laser beams irradiate the diffuse reflection reflecting surfaces, the light emitting surfaces of the optical fibers in each shooting area are respectively connected with a photoelectric sensor, and the photoelectric sensors are electrically connected to a processor. The invention does not need a light guide plate, reduces photoelectric sensors, can greatly reduce the weight and cost of the laser electronic target, and is convenient to use and maintain and widely popularize and apply.

Description

Laser electronic target

Technical Field

The invention relates to the technical field of simulated shooting, in particular to a laser electronic target.

Background

The laser simulated shooting system is a simulated shooting training system which is constructed by means of high-tech means such as a semiconductor laser technology, a singlechip technology, an image processing technology, a wireless communication technology, a sensor technology, a network technology, a database technology and the like.

In simulated shooting, after the laser hits the electronic target, the position (number of loops, etc.) where the electronic target is hit needs to be determined. Chinese patent document CN204255183U discloses a laser electronic target and targeting system comprising a plurality of shot areas made of light guide plates, each shot area being provided with a photoelectric sensor. When the laser light is irradiated onto the shot region, it propagates throughout the whole shot region and is received by the photoelectric sensor.

However, in order to ensure good light propagation in the light guide plate, the light guide plate is required to have a certain thickness and good transmittance, and the certain thickness results in heavy weight of the electronic target, inconvenient carrying, and generally high material cost of good transmittance. When the laser electronic targets are applied to the education and teaching scene, the number of the required electronic targets is large, and if the electronic targets are heavy, the carrying of a plurality of electronic targets is inconvenient; and the electronic target with high cost is hardly widely accepted when being used in education and teaching.

Disclosure of Invention

In order to solve the technical problems, the invention provides the laser electronic target, which does not need a light guide plate and reduces photoelectric sensors, can greatly reduce the weight and cost of the laser electronic target, and is convenient to use, maintain and popularize and apply in a large range.

The technical scheme provided by the invention is as follows:

the utility model provides a laser electron target, includes the bottom plate, the front surface of bottom plate is diffuse reflection face, be provided with a plurality of light blocking material strips that bulge forward on the front surface of bottom plate, a plurality of each other not communicating shooting region of formation is enclosed to a plurality of light blocking material strip, be provided with optic fibre in every shooting region respectively, all be provided with on the optic fibre in every shooting region and pick up plain noodles, set up different quantity's plain noodles according to shooting region's size, ensure that laser beam shines the light of reflection on the diffuse reflection face can be picked up by the plain noodles, the plain noodles of going out of optic fibre in every shooting region are connected with photoelectric sensor respectively, photoelectric sensor electricity is connected to the treater.

Further, a notch is formed in the optical fiber, a notch surface at the notch is the light picking surface, and one or two end surfaces of the optical fiber are light emitting surfaces;

or, a notch is formed in the optical fiber, a notch surface at the notch is the light picking surface, and one or two end surfaces of the optical fiber are light emitting surfaces.

Further, the optical fiber is a side-light optical fiber, wherein:

the side surface of the side light optical fiber is the light picking surface, and one or two end surfaces of the side light optical fiber are light emitting surfaces;

or, a notch is formed in the side light optical fiber, the side surface of the side light optical fiber and the notch surface at the notch are the light picking surface, and one or two end surfaces of the side light optical fiber are light emitting surfaces;

or, a gap is formed in the side light optical fiber, the side surface of the side light optical fiber and the gap surface at the gap are the light picking surface, and one or two end surfaces of the side light optical fiber are light emitting surfaces.

Further, the notch surface formed by the notch and the notch surface formed by the notch are arranged perpendicular to the axis of the side light optical fiber or obliquely to the axis of the side light optical fiber.

Further, the cut or notch does not cut the side light optical fiber, and the cut or notch is filled with a transparent adhesive material or an unfilled material.

Furthermore, a transparent sleeve is sleeved on the side light optical fiber at the notch or the notch, and the transparent sleeve is stuck and fixed on the bottom plate.

Further, the optical fibers are optical fiber bundles formed by densely arranging a plurality of optical fiber units, the end faces formed by aligning one ends of all the optical fiber units in the optical fiber bundles serve as light emitting faces, the end faces of the other ends of all the optical fiber units in the optical fiber bundles serve as light picking faces, and the lengths of all the optical fiber units in the optical fiber bundles are not all equal.

Further, the laser electronic target further comprises a light-transmitting front coating film, the front coating film is arranged on the front sides of the light-blocking material strips and the optical fibers, the front coating film has a light filtering function, and a shooting indication mark is arranged on the front surface of the front coating film.

Further, the base plate is provided with an installation seat, the installation seat comprises an upper cover and a lower cover, the light emitting surface of the optical fiber is tightly embedded in the upper cover, the photoelectric sensor is installed in the lower cover, the upper cover is fastened in the lower cover, the light emitting surface of the optical fiber is aligned with the receiving head of the photoelectric sensor, and the lower cover is fixed on the base plate through screws.

Further, the laser electronic target is an annular target, the shooting area is annular, and the optical fiber is arranged in the shooting area in a circular shape or an arc shape at the radial middle position of the shooting area;

or the laser electronic target is a chest ring target, the shooting area is annular or partially annular, the optical fiber is circularly or circularly arranged in the shooting area at the radial middle position of the shooting area, and the part of the optical fiber outside the effective area of the chest ring target is shielded by a shading material.

Further, the mounting seat is positioned in the groove on the front surface of the bottom plate;

or the mounting seat is positioned in the groove on the rear surface of the bottom plate, and the optical fiber passes through the through hole on the bottom plate to be connected with the mounting seat.

The invention has the following beneficial effects:

the invention makes the laser beam disperse by diffuse reflection on the front surface of the bottom plate, and the laser beam is picked up by the optical fiber and transmitted to the photoelectric sensor, and the laser electronic target in the prior art picks up the laser by the light guide plate and transmits the laser in the light guide plate of the whole shooting area, and the laser electronic target is received by the photoelectric sensor. Compared with the laser electronic target in the prior art, the invention adopts a novel light transmission technology, does not need a light guide plate, can greatly reduce the weight and cost of the laser electronic target, and is convenient to use and popularize and apply in a large range.

In addition, the optical signal is conducted through the optical fiber, the optical fiber is almost lossless in transmission, and the optical signal picked up by the optical pick-up surface can be transmitted to the photoelectric sensor no matter where the optical pick-up surface is, so that only one photoelectric sensor is needed in one shooting area.

Drawings

FIG. 1 is a schematic diagram of one embodiment of a laser electron target of the present invention (a ring target);

FIG. 2 is a schematic view of another embodiment of the laser electron target of the present invention (chest ring target);

FIG. 3 is a cross-sectional view of a laser electronic target of the present invention;

FIG. 4 is a schematic view of a cut-out;

FIG. 5 is a schematic illustration of a connection of a mount to an optical fiber;

fig. 6 is a schematic view of a fiber bundle.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

The embodiment of the invention provides a laser electronic target, as shown in fig. 1-6, which comprises a base plate 1, wherein the front surface 2 of the base plate 1 is a diffuse reflection reflecting surface, a plurality of light blocking material strips 3 protruding forwards are arranged on the front surface 2 of the base plate 1, a plurality of shooting areas 4 which are not communicated with each other are surrounded by the light blocking material strips 3, optical fibers 5 are respectively arranged in each shooting area 4, a light pickup surface 6 and a light emitting surface 7 are respectively arranged on the optical fibers 5 in each shooting area 4, different numbers of light pickup surfaces 6 are arranged according to the size of the shooting areas 4, so that light rays reflected by the diffuse reflection reflecting surfaces irradiated by laser beams can be picked up by the light pickup surfaces 6, the light emitting surfaces 7 of the optical fibers 5 in each shooting area 4 are respectively connected with a photoelectric sensor 8, and the photoelectric sensors 8 are electrically connected to a processor.

When the invention is used, the laser emitted by the simulation gun is a highly concentrated light beam, and the light beam irradiates an electronic target and is reflected by the front surface of the bottom plate after falling into a certain shooting area. Because the front surface of the bottom plate is a diffuse reflection surface, the highly concentrated laser beams are reflected and scattered to form light rays in all directions, and the reflected light rays are picked up by the light picking surface of the optical fiber and enter the optical fiber from the light picking surface. The light is transmitted to the light-emitting surface almost without damage in the optical fiber, is received by the photoelectric sensor, and can identify which photoelectric sensor receives the light signal through the processor, so that which shooting area is hit by laser is identified, and the targeting result is determined. Meanwhile, the light blocking material strips can prevent light signals from entering adjacent shooting areas, and confusion of shooting results is avoided.

After the laser beam is scattered by diffuse reflection, the reflected light can form a larger light irradiation area. When the shooting area is smaller, the light irradiation area can be distributed over the whole shooting area, so that only one light picking surface can be designed; when the shooting area becomes larger, the light irradiation area may not be able to cover the whole shooting area, so that multiple light picking surfaces need to be designed at different positions to ensure that the reflected light can be picked up by the light picking surfaces, and the larger the area of the shooting area is, the more light picking surfaces are needed.

The invention makes the laser beam disperse by diffuse reflection on the front surface of the bottom plate, and the laser beam is picked up by the optical fiber and transmitted to the photoelectric sensor, and the laser electronic target in the prior art picks up the laser by the light guide plate and transmits the laser in the light guide plate of the whole shooting area, and the laser electronic target is received by the photoelectric sensor. Compared with the laser electronic target in the prior art, the invention adopts a novel light transmission technology, does not need a light guide plate, can greatly reduce the weight and cost of the laser electronic target, and is convenient to use and popularize and apply in a large range.

In addition, the optical signal is conducted through the optical fiber, the optical fiber is almost lossless in transmission, and the optical signal picked up by the optical pick-up surface can be transmitted to the photoelectric sensor no matter where the optical pick-up surface is, so that only one photoelectric sensor is needed in one shooting area.

The invention is not limited to the material of the bottom plate, and the selection range of the material is very wide, for example, ethylene-vinyl acetate copolymer (EVA), plastic and the like can be adopted, and other various common materials can also meet the requirements. The front surface of the bottom plate is a diffuse reflection reflecting surface, and the formation of the surface does not have special technological requirements, so long as the diffuse reflection can be carried out, because the surfaces of the existing various materials are basically rough, the requirement of the invention on diffuse reflection can be met.

The present invention is not limited to the arrangement of the optical fiber pick-up surface, as long as the optical signal can be picked up into the optical fiber, and several specific examples are given below:

example one:

in this example, as shown in fig. 1 to 4, the optical fiber 5 is a side light optical fiber, the side surface of the side light optical fiber is a light collecting surface 6, and one or both end surfaces of the side light optical fiber are light emitting surfaces 7.

The sidelight optical fiber is also called a whole body luminous optical fiber, and consists of a core material and a sheath material, wherein the refractive index of the core material is higher than that of the sheath material, the core material is mostly made of transparent polymer or transparent organic matters, and the sheath material is usually made of fluoroplastic such as polytetrafluoroethylene and the like. Side-lit optical fibers are commonly used for illumination and decoration, where light is directed into one or both end faces of the side-lit optical fiber and out the side, i.e., illuminated by side-emission. Since light can enter from the end face and exit from the side light optical fiber, the light can also enter from the side of the side light optical fiber and exit from the two end faces according to the principle of reversibility of the light path.

The characteristic of the side light optical fiber is applied to the example, the side surface of the side light optical fiber is taken as a light picking surface, and the end surface is taken as a light emitting surface to be connected with the photoelectric sensor.

The side-light optical fiber sheath is made of polytetrafluoroethylene material, and the sheath material has the characteristics of water repellency and oil repellency, so that the side-light optical fiber sheath is difficult to adhere to the side-light optical fiber sheath, and is difficult to adhere and fix through an adhesive. For fixing the side light optical fiber, the transparent sleeve 10 is arranged on the side light optical fiber, the transparent sleeve is in a plastic pipe or heat shrinkage pipe mode, and the transparent sleeve is fixed on the bottom plate through an adhesive, so that the side light optical fiber can be fixed.

Example two:

in this example, as shown in fig. 1 to 4, the optical fiber 5 is a side light optical fiber, a notch 9 is formed on the side light optical fiber, a side surface of the side light optical fiber and a notch surface at the notch are light picking surfaces, and one or two end surfaces of the side light optical fiber are light emitting surfaces.

In the first example, the side surface of the side-light optical fiber is used as the light pickup surface, which can achieve the purpose of picking up the optical signal. However, after the laser beam is scattered by diffuse reflection, the intensity of the laser beam is inevitably reduced, and although the side surface of the side light optical fiber can pick up light, the light pick-up capacity of the side surface of the side light optical fiber is poorer than that of the end surface (not only the side light optical fiber, but also other types of optical fibers are the strongest in light pick-up capacity of the end surface, and some types of optical fibers have opaque skin layers and the side surface does not have the light pick-up capacity).

Therefore, if an optical signal whose intensity is reduced after diffuse reflection is picked up only by the side face (optical pickup power is inferior to that of the end face) of the side-light optical fiber, there may be a case where the optical signal is not picked up or the optical signal is weak.

To solve the above problem, the present example provides the side light optical fiber with the notch 9, which is to cut the side light optical fiber by a cutter, but does not cut a part of the material from the side light optical fiber, and if the notch of the side light optical fiber is not pulled to both sides after cutting, the two notch surfaces at the notch are still stuck together. The cut surface at the cut corresponds to the end surface of the side light optical fiber, and the cut surface can be used as a light picking surface to pick up optical signals well. This example corresponds to an artificial increase in the end surface of the side-light fiber, and improves the light pick-up effect.

In this example, the notch surface formed by the notch may be disposed perpendicular to the axis of the side light optical fiber, or may be disposed obliquely to the axis of the side light optical fiber, and both the perpendicular arrangement and the oblique arrangement may pick up the optical signal.

When the optical signal is transmitted in the optical fiber, a part of the optical signal is lost on two notches at the notch (because of the refraction and reflection of the two notch surfaces), in order to prevent the optical signal from being lost greatly, the side optical fiber can not be cut at the notch when the notch is performed, the part which is not cut is used for transmitting the optical signal in the optical fiber, the loss of the optical signal can be reduced, and the part which is not cut also plays a role in connection, so that one side optical fiber is still a whole.

The fixing method of the side light optical fiber of this example is similar to that of the first example, and the difference is that the transparent sleeve 10 is sleeved at the notch of the side light optical fiber, so that the side light optical fiber can be fixed through the transparent sleeve, the notch is not deformed, two notch surfaces at the notch can be attached together or have a small gap, and the transparent sleeve does not prevent optical signals from entering the notch surfaces.

The cut may be filled with a transparent adhesive material so that the two cut faces at the cut are firmly connected, and the filled transparent adhesive material is such that the cut is free of air medium, which may reduce the loss of optical signals at the cut (because the interface of air medium and cut face is large and the interface of solidified solid transparent adhesive material and cut face is small). Of course, the transparent binder material may not be filled, nor does it affect the practice of the invention.

When filled with the adhesive material, the side-light optical fibers can be completely cut at the cut, so that the connection at the cut is ensured by the adhesive, the auxiliary connection is performed by the transparent sleeve, and the adhesive can ensure that the loss of the optical signals is not great when the optical signals are conducted at the cut.

Example three:

in this example, the optical fiber is a side light optical fiber, a gap is formed in the side light optical fiber, the side surface of the side light optical fiber and the gap surface at the gap are light picking surfaces, and one or two end surfaces of the side light optical fiber are light emitting surfaces.

The difference between this example and example two is that this example only provides a notch in the side light optical fiber, and the notch refers to a notch such as a V-shape formed by cutting out a part of the side light optical fiber with a cutter. Other portions are the same as those in example two, and are not described in detail in this example.

Example four:

in this example, as shown in fig. 6, the optical fiber is an optical fiber bundle 11 formed by densely arranging a plurality of optical fiber units, one end face formed by aligning one ends of all the optical fiber units in the optical fiber bundle 11 is used as the light emitting face 7, the other end face of all the optical fiber units in the optical fiber bundle is used as the light collecting face 6, and the lengths of all the optical fiber units in the optical fiber bundle are not all equal.

Since the optical fiber units are different in length and one end is aligned, the other ends (light pickup surfaces) of the plurality of optical fiber units are distributed at different positions of the shot region, so that the optical signals can be picked up even at different positions.

Example five:

the optical fiber of this example is a common optical fiber, a notch is formed in the optical fiber, the notch surface at the notch is a light picking surface, and one or both end surfaces of the optical fiber are light emitting surfaces.

The present example is similar to example two, except that the optical fiber of the present example is a normal optical fiber, not a side-light optical fiber, and accordingly, in the present example, the cut surface of the optical fiber is a light picking surface, and the side surface of the optical fiber is not a light picking surface. This example is identical to example two except for the differences described above, and specific statements are made with reference to example two.

Example six:

the optical fiber of this example is ordinary optical fiber, has offered the breach on the optical fiber, and the breach face of breach department is picked up the plain noodles, and one or two terminal surfaces of optical fiber are the plain noodles.

This example is similar to example three, except that the optical fiber of this example is a plain fiber. This example is identical to example three except for the differences described above, with specific statements made with reference to example three.

The foregoing examples one to six are merely illustrative of the optical fiber and the light collecting surface and the light emitting surface thereof, but are not limited to the above four forms.

As an improvement of the embodiment of the invention, the laser electronic target further comprises a light-transmitting front coating 12, wherein the front coating is arranged on the front side of the light-blocking material strip 3 and the optical fibers 4, the front coating 12 has a light filtering function, and the front surface of the front coating 12 is provided with a shooting indication mark 13.

In theory, the laser spot irradiated on the electronic target is in a standard round shape, but in practice, the laser spot is not in a standard round shape due to the influence of the laser emitter processing technology, pollution to the front end of the laser emitter, and the like. For example, a standard or approximate circular area is arranged in the middle of the laser spot, and a certain halo or impurity spot is arranged around the laser spot, so that the whole laser spot is relatively large. When the laser light spot in the form is shot to the edge of the shooting area, halation or miscellaneous spots are likely to irradiate into the adjacent shooting area, so that the halation or miscellaneous spots are received by the photoelectric sensors of the adjacent shooting area, and false alarms of the target performance are caused.

Therefore, the front side of the invention is provided with the front coating film, and the front coating film has a filtering function, for example, the filtering film can attenuate the light intensity of laser, and as the light intensity of halation or hybrid spots is lower than the light intensity of the center of the light spot, the halation or hybrid spots can be completely attenuated (or attenuated to the extent that the photoelectric sensor cannot receive) while the center of the light spot is attenuated, but the front coating film can still be identified by the photoelectric sensor, thereby solving the defect of false alarm of the targeting result caused by irregular light spots of the laser.

The laser of the laser simulated shooting system can be coded laser and uncoded laser, when the laser is coded, the photoelectric sensor judges whether the laser is received or not through coding, and when the laser is uncoded, the photoelectric sensor judges whether the laser is received or not through light intensity. Therefore, when the laser is not coded, the ambient light can generate certain interference to the photoelectric sensor, and if the ambient light reaches certain intensity, the ambient light can also be received by the photoelectric sensor, so that false alarm of the target is caused. The filter film can also play a role in filtering out ambient light to a certain extent, so that false alarm is further prevented.

In shooting, it is necessary to indicate the shooting area, for example, to divide each target ring, so that the shooting indication mark 13 may be provided on the front cover film of the present invention. The shooting indication mark can be directly drawn on the front surface of the front tectorial membrane, and can also be an independent one-layer membrane structure, for example, can be a mesh patch, and the front surface of the mesh patch is provided with a pattern for indicating shooting. The shooting indication mark of a single layer can also play a role in eliminating laser halation or clutter and filtering ambient light to a certain extent.

As described above, the sheath material of the side-light optical fiber is a hydrophobic and oleophobic material, and is not well fixed by an adhesive or the like. In order to fixedly install the end face (light emitting face) of the side light optical fiber, the invention is provided with an installation seat on the bottom plate, as shown in fig. 5, the installation seat comprises an upper cover 14 and a lower cover 15, the light emitting face 7 of the optical fiber 5 is tightly embedded in the upper cover 14, the photoelectric sensor 8 is installed in the lower cover 15, the upper cover 14 is fastened in the lower cover 15, the light emitting face 7 of the optical fiber 5 is aligned with the receiving head of the photoelectric sensor 8, and the lower cover 15 is fixed on the bottom plate 1 through screws.

According to the invention, the end face of the side light optical fiber is fixed through the mounting seat and the photoelectric sensor is mounted, so that the problem of difficulty in fixing the end face of the side light optical fiber is solved, and the fixing mode is simple and reliable. This way of fixing not only side-light fibers but also other forms of fibers, such as the aforementioned bundles of fibers, can be fixed in this way.

The foregoing mounting seat may be located in a groove on the front surface of the base plate 1, or may be located in a groove on the rear surface of the base plate 1, and when located on the rear surface, the optical fiber 5 passes through a through hole on the base plate to be connected with the mounting seat.

The laser light is reflected off the object and the reflected laser light is typically not strong enough to trigger the photosensor. However, if the reflected laser irradiates to the vicinity of the photoelectric sensor, the photoelectric sensor is also easily touched to generate false alarm, so the mounting seat is arranged in the groove on the rear surface of the bottom plate, the photoelectric sensor is also positioned on the back surface of the bottom plate, and the interference of the reflected light can be prevented.

The laser electronic target of the present invention may be made into any shape as required, and as one example, as shown in fig. 1, the laser electronic target is an annular target, the shooting area 4 is annular, and the optical fiber 5 is arranged in the shooting area 4 in a circular shape or a circular arc shape at a radial middle position of the shooting area 4; the optical fiber can conveniently receive the optical signals of the shooting area, the distance between each point in the shooting area and the optical fiber is short, the distance between each point in the shooting area and the light picking surface is short, and the loss of the optical signals can be reduced.

Alternatively, as another example thereof, as shown in fig. 2, the laser electronic target is a chest ring target, the shooting region 4 is annular or partially annular, and the optical fiber 5 is circularly or circularly arranged in the shooting region 4 at a radially middle position of the shooting region 4; the benefits of this arrangement are similar to those of a ring target.

For the convenience of arranging the optical fibers, the optical fibers 5 are generally arranged in a circular shape as much as possible, and a part of the area of the optical fibers 5 is located outside the effective area of the chest ring target, and a shading material 16 is arranged at the part for shading the part for preventing the optical pickup interference of the part of the optical fibers, as shown in fig. 2.

For convenient fixation, the laser electronic target can also comprise a rear mounting plate, wherein the rear mounting plate is arranged on the back of the bottom plate, all the photoelectric sensors are arranged on a strip-shaped circuit board, a circuit board groove is formed in the rear mounting plate, and the circuit board is arranged in the circuit board groove; the side of bottom plate and rear mounting panel is provided with fixed frame all around.

While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

Claims (6)

1. The laser electronic target is characterized by comprising a bottom plate, wherein the front surface of the bottom plate is a diffuse reflection reflecting surface, a plurality of light blocking material strips protruding forwards are arranged on the front surface of the bottom plate, a plurality of shooting areas which are not communicated with each other are surrounded by the light blocking material strips, optical fibers are respectively arranged in each shooting area, light pickup surfaces and light emitting surfaces are respectively arranged on the optical fibers in each shooting area, different numbers of light pickup surfaces are arranged according to the sizes of the shooting areas, the light rays reflected by the diffuse reflection reflecting surfaces when laser beams are irradiated on the light pickup surfaces can be picked up by the light pickup surfaces, the light emitting surfaces of the optical fibers in each shooting area are respectively connected with a photoelectric sensor, and the photoelectric sensors are electrically connected to a processor;

the base plate is provided with an installation seat, the installation seat comprises an upper cover and a lower cover, the light-emitting surface of the optical fiber is tightly embedded in the upper cover, the photoelectric sensor is installed in the lower cover, the upper cover is fastened in the lower cover, the light-emitting surface of the optical fiber is aligned with a receiving head of the photoelectric sensor, and the lower cover is fixed on the base plate through a screw;

the optical fiber is provided with a notch, the notch surface at the notch is the light picking surface, and one or two end surfaces of the optical fiber are light emitting surfaces;

or a notch is formed in the optical fiber, a notch surface at the notch is the light picking surface, and one or two end surfaces of the optical fiber are light emitting surfaces;

or the optical fiber is an edge light optical fiber, the side surface of the edge light optical fiber is the light picking surface, and one or two end surfaces of the edge light optical fiber are light emitting surfaces;

or the optical fiber is an edge light optical fiber, a notch is formed in the edge light optical fiber, the side surface of the edge light optical fiber and the notch surface at the notch are the light picking surface, and one or two end surfaces of the edge light optical fiber are light emitting surfaces;

or the optical fiber is an edge light optical fiber, a gap is formed in the edge light optical fiber, the side surface of the edge light optical fiber and the gap surface at the gap are the light picking surface, and one or two end surfaces of the edge light optical fiber are light emitting surfaces.

2. The laser electronic target according to claim 1, wherein a notch surface formed by the notch and a notch surface formed by the notch are arranged perpendicular to an axis of the side light optical fiber or obliquely to the axis of the side light optical fiber;

the cut or notch is not used for cutting off the side light optical fiber, and transparent adhesive materials or unfilled materials are filled in the cut or notch.

3. The laser electronic target according to claim 2, wherein a transparent sleeve is sleeved on the side light optical fiber at the notch or the notch, and the transparent sleeve is adhered and fixed on the bottom plate.

4. A laser electronic target according to any one of claims 1-3, further comprising a light-transmitting front cover film, said front cover film being arranged on the front side of the light-blocking material strip and the optical fiber, said front cover film having a light filtering function, the front surface of said front cover film being provided with a fire indication mark.

5. The laser electronic target according to claim 4, wherein the laser electronic target is an annular target, the shooting area is annular, and the optical fiber is arranged in the shooting area in a circular shape or a circular arc shape at a radial middle position of the shooting area;

or the laser electronic target is a chest ring target, the shooting area is annular or partially annular, the optical fiber is circularly or circularly arranged in the shooting area at the radial middle position of the shooting area, and the part of the optical fiber outside the effective area of the chest ring target is shielded by a shading material.

6. The laser electronic target of claim 4, wherein the mount is positioned within a recess in the front surface of the base plate;

or the mounting seat is positioned in the groove on the rear surface of the bottom plate, and the optical fiber passes through the through hole on the bottom plate to be connected with the mounting seat.

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