阅读说明：本技术 一种对光方便的周界红外激光探测器 (Convenient-to-aim perimeter infrared laser detector ) 是由 唐令清 曹登峰 张强 于 2020-12-10 设计创作，主要内容包括：本发明公开了一种对光方便的周界红外激光探测器,包括有激光发射主机和激光接收主机；激光发射主机包括有第一壳体,以及分别设置在第一壳体内的且相互配合的激光发射光源和反射镜；激光发射光源包括有用于发出不可见光的不可见激光光源和用于发出可见光的可见激光光源；激光接收主机包括有第二壳体和设置在第二壳体内的激光接收器；不可见激光光源发出的不可见光与可见激光光源发出的可见光平行,不可见光和可见光分别通过反射镜的反射后形成分别射至激光接收器上的不可见反射光和可见反射光。本发明的激光发射主机与激光接收主机之间的位置可任意调节,且其对光过程方便快捷,不需要其他的辅助工具即可对光,维护也较为方便。(The invention discloses a perimeter infrared laser detector convenient for light focusing, which comprises a laser emitting host and a laser receiving host; the laser emission host comprises a first shell, a laser emission light source and a reflector, wherein the laser emission light source and the reflector are arranged in the first shell and are matched with each other; the laser emission light source comprises a non-visible laser light source for emitting non-visible light and a visible laser light source for emitting visible light; the laser receiving host comprises a second shell and a laser receiver arranged in the second shell; the invisible light emitted by the invisible laser light source is parallel to the visible light emitted by the visible laser light source, and the invisible light and the visible light are reflected by the reflector respectively to form invisible reflected light and visible reflected light which are respectively emitted to the laser receiver. The position between the laser emitting host and the laser receiving host can be adjusted at will, the light focusing process is convenient and quick, light can be focused without other auxiliary tools, and the maintenance is more convenient.)

1. The utility model provides a to convenient perimeter infrared laser detector of light, includes laser emission host computer and laser receiver host computer, its characterized in that:

the laser emission host comprises a first shell, a laser emission light source and a reflector, wherein the laser emission light source and the reflector are arranged in the first shell and are matched with each other; the laser emission light source comprises a non-visible laser light source for emitting non-visible light and a visible laser light source for emitting visible light; the laser receiving host comprises a second shell and a laser receiver arranged in the second shell; the invisible light emitted by the invisible laser light source is parallel to the visible light emitted by the visible laser light source, and the invisible light and the visible light are reflected by the reflector respectively to form invisible reflected light and visible reflected light which are respectively emitted to the laser receiver.

2. A conveniently focused perimeter infrared laser detector as claimed in claim 1, characterized in that:

the invisible laser light source and the visible laser light source are respectively arranged in the two laser transmitters.

3. A conveniently focused perimeter infrared laser detector as claimed in claim 2, characterized in that:

the reflector is provided with two reflectors which are arranged in parallel, wherein the two reflectors are a long-wave-pass dichroic mirror and a short-wave-pass dichroic mirror respectively; the short-wave-pass dichroic mirror is matched with the invisible laser light source, and the long-wave-pass dichroic mirror is matched with the visible laser light source; the invisible reflected light is parallel to or coincident with the visible reflected light.

4. A conveniently focused perimeter infrared laser detector as claimed in claim 3, characterized in that:

the visible reflection light penetrates through the short-wave-pass dichroic mirror and then is emitted onto the laser receiver or the invisible reflection light penetrates through the long-wave-pass dichroic mirror and then is emitted onto the laser receiver.

5. A conveniently focused perimeter infrared laser detector as claimed in claim 4, characterized in that:

the transmission waveband of the short wave-passing dichroic mirror is 400-760 nm, and the reflection waveband of the short wave-passing dichroic mirror is larger than 760 nm; the transmission waveband of the long-wave-pass dichroic mirror is larger than 760nm, and the reflection waveband of the long-wave-pass dichroic mirror is 400-760 nm.

6. The utility model provides a to convenient perimeter infrared laser detector of light, includes laser emission host computer and laser receiver host computer, its characterized in that:

the laser emission host comprises a first shell and a laser emission light source arranged in the first shell; the laser emission light source comprises a non-visible laser light source for emitting non-visible light and a visible laser light source for emitting visible light; the laser receiving host comprises a second shell and a laser receiver arranged in the second shell; the invisible light emitted by the invisible laser light source and the visible light emitted by the visible laser light source are parallel and close to each other, and the invisible light and the visible light can be respectively and directly emitted to the laser receiver.

7. A conveniently focused perimeter infrared laser detector as claimed in claim 1 or 6, characterized in that:

the invisible laser light source and the visible laser light source are arranged in one laser emitter.

8. A handy to light perimeter infrared laser detector according to any of claims 1-6, characterized by:

the invisible laser light source and the visible laser light source are both provided with one.

9. A handy to light perimeter infrared laser detector according to any of claims 1-6, characterized by:

the laser emission host machine further comprises a data display screen which is arranged on the side surface of the first shell far away from the laser receiving host machine and is electrically connected with a circuit board.

10. A handy to light perimeter infrared laser detector according to any of claims 1-6, characterized by:

the laser emission host machine further comprises a two-dimensional adjusting frame arranged in the first shell, and the laser emission light source and the reflector are arranged on the two-dimensional adjusting frame.

Technical Field

The invention relates to the technical field of security protection, in particular to a perimeter infrared laser detector convenient for light focusing.

Background

The periphery infrared laser detector consists of a laser emitting host and a laser receiving host, wherein the laser emitting host and the laser receiving host are respectively provided with a laser emitter and a laser receiver which correspond to each other one by one. When the light source emitted by the laser emitter is blocked and the receiving part cannot receive light, the intrusion is detected, the potential safety hazard exists, and an alarm signal is sent out.

At present, because laser adopts an invisible laser light source, when a perimeter infrared laser detector is installed, the light alignment of a laser transmitter and a receiver is difficult. The prior art laser transmitter and receiver alignment typically uses a laser finder to assist in alignment. However, the laser finder is expensive in manufacturing cost, cannot be equipped for each sold infrared detector, can only be rented or borrowed, and needs to return to a merchant after use, which is very inconvenient. And need the ware that the laser searched in the maintenance and repair of perimeter infrared laser detector in-process, and all rent at every turn, also produced extra expense like this, do not have the ware that the laser searched in the maintenance and repair, can't solve the problem in time, have certain potential safety hazard.

Patent application No.: 202020727780.0 discloses a perimeter infrared laser detector for facilitating light focusing, which comprises a laser emitting host and a laser receiving host; the laser emission host comprises a first shell and a laser emitter assembly arranged in the first shell; the laser transmitter component comprises a non-visible laser transmitter and at least one visible laser transmitter; the laser receiving host comprises a second shell and a laser receiver assembly arranged in the second shell; the laser receiver assembly comprises a laser receiver and a convex lens corresponding to the laser receiver; the visible light emitted by the visible laser transmitter and the invisible light emitted by the invisible laser transmitter intersect and the intersection point falls on the laser receiver. Although the perimeter infrared laser detector has the advantage of being convenient for focusing, the visible light emitted by the visible laser emitter and the invisible light emitted by the invisible laser emitter have an intersection point which falls on the laser receiver, and the intersection point is fixedly arranged, so that the distance between the laser emitting host and the laser receiving host can be fixed, the use is not favorable for people, the use effect is not comprehensive enough, and the defect exists.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a perimeter infrared laser detector convenient for light focusing, which has a simple and reasonable structure, no limit on the distance between a laser emitting host and a laser receiving host, arbitrary adjustment and good use effect, so that the detector can be used in different places, namely, the detector has a wide application range; meanwhile, the device also has the advantages of simple and visual light focusing process, convenience in operation, low cost, simplicity in overhaul and maintenance and the like.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a perimeter infrared laser detector convenient for light focusing comprises a laser emitting host and a laser receiving host; the laser emission host comprises a first shell, a laser emission light source and a reflector, wherein the laser emission light source and the reflector are arranged in the first shell and are matched with each other; the laser emission light source comprises a non-visible laser light source for emitting non-visible light and a visible laser light source for emitting visible light; the laser receiving host comprises a second shell and a laser receiver arranged in the second shell; the invisible light emitted by the invisible laser light source is parallel to the visible light emitted by the visible laser light source, and the invisible light and the visible light are reflected by the reflector respectively to form invisible reflected light and visible reflected light which are respectively emitted to the laser receiver.

For the additional structure of the above technical scheme, the following scheme is also included:

as a specific example, the invisible laser light source and the visible laser light source are respectively provided in two laser emitters.

Furthermore, the reflecting mirror is provided with two reflecting mirrors which are arranged in parallel, wherein the two reflecting mirrors are respectively a long-wave-pass dichroic mirror and a short-wave-pass dichroic mirror; the short-wave-pass dichroic mirror is matched with the invisible laser light source, and the long-wave-pass dichroic mirror is matched with the visible laser light source; the invisible reflected light is parallel to or coincident with the visible reflected light.

Further, the visible reflected light penetrates through the short-wave pass dichroic mirror and then is incident on the laser receiver or the invisible reflected light penetrates through the long-wave pass dichroic mirror and then is incident on the laser receiver.

Further, the transmission waveband of the short-wave-pass dichroic mirror is 400-760 nm, and the reflection waveband of the short-wave-pass dichroic mirror is larger than 760 nm; the transmission waveband of the long-wave-pass dichroic mirror is larger than 760nm, and the reflection waveband of the long-wave-pass dichroic mirror is 400-760 nm.

The invention also provides another perimeter infrared laser detector convenient for light focusing, which comprises a laser emitting host and a laser receiving host; the laser emission host comprises a first shell and a laser emission light source arranged in the first shell; the laser emission light source comprises a non-visible laser light source for emitting non-visible light and a visible laser light source for emitting visible light; the laser receiving host comprises a second shell and a laser receiver arranged in the second shell; the invisible light emitted by the invisible laser light source and the visible light emitted by the visible laser light source are parallel and close to each other, and the invisible light and the visible light can be respectively and directly emitted to the laser receiver.

As a specific example, the invisible laser light source and the visible laser light source are provided in one laser transmitter.

As a specific example, there is one each of the invisible laser light source and the visible laser light source.

As a specific embodiment, the laser emission host further includes a data display screen disposed on a side of the first housing away from the laser reception host and electrically connected to a circuit board.

As a specific embodiment, the laser emission host further includes a two-dimensional adjusting frame disposed in the first housing, and the laser emission light source and the reflecting mirror are both disposed on the two-dimensional adjusting frame.

The invention has the beneficial effects that:

the invention has simple and reasonable structure, the position between the laser emitting host and the laser receiving host is not limited, the laser emitting host and the laser receiving host can be adjusted freely, the use effect is good, the use range is wide, the irradiation position of invisible light can be determined by watching the irradiation position of visible light, the light focusing process is convenient and quick, the light can be focused without other auxiliary tools, the visible laser light source can be closed after the position of visible light is determined, thus the whole process of focusing the invisible laser light source and the laser receiver is completed, the operation process is simple and visual, the operation is convenient and the cost is low, the light can be focused by using the same convenience when the maintenance is needed, and the maintenance and the overhaul are very convenient.

Drawings

FIG. 1 is a schematic overall structure diagram of a first embodiment of the present invention;

FIG. 2 is a partial schematic view of a first embodiment of the present invention;

FIG. 3 is a schematic diagram of a partial structure of a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a laser emitting host according to a first embodiment of the present invention;

FIG. 5 is a schematic view of the overall structure of a second embodiment of the present invention;

FIG. 6 is a schematic diagram of a partial structure of a second embodiment of the present invention;

FIG. 7 is a second partial schematic structural diagram according to a second embodiment of the present invention;

FIG. 8 is a schematic view of the overall structure of a second embodiment of the present invention;

FIG. 9 is a schematic diagram of a partial structure of a second embodiment of the present invention;

fig. 10 is a partial structural schematic diagram of a second embodiment of the present invention.

Reference numerals:

1. a laser emission host; 10. a laser transmitter; 11. a first housing; 12. a laser emission light source; 121. an invisible laser light source; 1211. invisible light; 1212. invisible reflected light; 122. a visible laser light source; 1221. visible light; 1222. visible reflected light; 13. a mirror; 14. a two-dimensional adjusting bracket; 15. an adjustment hole; 16. a screw; 17. a first fixing frame; 18. a second fixing frame; 19. a first perspective mirror; 20. a second perspective mirror; 21. a first retaining ring; 22. a second retaining ring; 23. a data display screen; 3. a laser receiving host; 31. a second housing; 32. a laser receiver.

Detailed Description

The invention will be further elucidated with reference to the drawings and the embodiments, which are exemplary only and do not limit the scope of the invention.

The first embodiment is as follows:

if 1-4 show, a perimeter infrared laser detector convenient for light focusing comprises a laser emitting host 1 and a laser receiving host 3; the laser emission host 1 comprises a first shell 11, and a laser emission light source 12 and a reflector 13 which are respectively arranged in the first shell 11 and are matched with each other; the laser emission light source 12 includes an invisible laser light source 121 for emitting invisible light 1211 and a visible laser light source 122 for emitting visible light 1221, in this embodiment, there is one invisible laser light source 121 and one visible laser light source 122, which saves production cost to a certain extent while ensuring the effect of use, and those skilled in the art should know that the number of visible laser light sources 122 can also be set as required; the laser receiver 3 comprises a second housing 31 and a laser receiver 32 disposed in the second housing 31, and of course, a focusing lens may be disposed in front of the laser receiver 32; the invisible light 1211 emitted by the invisible laser light source 121 is parallel to the visible light 1221 emitted by the visible laser light source 122, and the invisible light 1211 and the visible light 1221 are reflected by the mirror 13 to form invisible reflected light 1212 and visible reflected light 1222 respectively incident on the laser receiver 32. The present invention has simple and reasonable structure, by arranging the symmetrical invisible laser source 121 and the visible laser source 122, when the gap between the invisible light 1211 and the visible light 122 is designed to be small, the interval between the invisible reflected light 1212 and the visible reflected light 1222 is also small, and the using effect is similar to the coincidence, so the precision of the light is not easily affected, and because the invisible light 1211 and the visible light 1221 are parallel (i.e. there is no intersection), the invisible reflected light 1212 and the visible reflected light 1222 formed after the reflection of the mirror 13 also fall on the laser receiver 32 in parallel, the distance between the laser receiver 32 and the laser emission light source 12 is not limited, and can be adjusted at will, that is, the distance between the laser emission host 1 and the laser reception host 3 can be adjusted at will, so as to meet the use in different places, and the application range is wide.

As can be seen from fig. 2, the laser emission light source 12 is vertically disposed, and the reflecting mirror 13 is located in the irradiation path of the laser emission light source 12, so that the invisible light 1211 and the visible light 1221 can be smoothly reflected.

In the present embodiment, the invisible laser light source 121 and the visible laser light source 122 are provided in one laser transmitter 10. Specifically, the invisible laser light source 121 and the visible laser light source 122 are actually two different lampwicks in one laser emitter 10. When the laser receiver is used, through circuit control, a worker only lights the visible laser source 122 when focusing, the visible light 1221 is ensured to be reflected by the reflector 13 and then to be emitted onto the laser receiver 32 through visual observation, the visible laser source 1221 is turned off after the focusing is finished, and the invisible laser source 121 is turned on, so that the invisible light 1211 can be emitted onto the laser receiver 32, and the focusing process is simple and rapid.

The laser emission host 1 further comprises a two-dimensional adjusting frame 14 arranged in the first housing 11, the laser emission light source 12 and the reflecting mirror 13 are both arranged on the two-dimensional adjusting frame 14, so that the laser emission light source 12 and the reflecting mirror 13 can be adjusted in the vertical direction and the horizontal direction at the same time, and are convenient to adjust, and particularly, the laser emission light source 12 and the reflecting mirror 13 are both arranged on a movable adjusting plate of the two-dimensional adjusting frame 14, and the movable adjusting plate is further connected with a vertical adjusting screw for adjusting the vertical angle of the movable adjusting plate and a horizontal adjusting screw for adjusting the horizontal angle of the movable adjusting plate, of course, the two-dimensional adjusting frame 14 further comprises other connecting parts, but since the two-dimensional adjusting frame 14 is the prior art, detailed description is omitted here.

An adjusting hole 15 for aligning the two-dimensional adjusting frame 14 and a screw 16 locked in the adjusting hole 15 are further provided on the side of the first housing 11. When the angles of the laser emission light source 12 and the reflector 13 on the two-dimensional adjusting frame 14 need to be adjusted, the screw 16 is taken away, then the adjusting hole 15 can be penetrated to adjust the up-down adjusting screw and the left-right adjusting screw on the two-dimensional adjusting frame 14, and then the adjustment of the angles of the laser emission light source 12 and the reflector 13 on the movable adjusting plate is completed.

A first fixing frame 17 is further arranged in the first shell 11, and the two-dimensional adjusting frame 14 is installed on the first fixing frame 17; a second holder 18 is further provided in the second housing 31, and a laser receiver 32 is mounted on the second holder 18. The two-dimensional adjusting bracket 14 and the laser receiver 32 can be conveniently fixed by arranging the first fixing bracket 17 and the second fixing bracket 18.

The laser emission host 1 further comprises a first perspective mirror 19 which is arranged on the side edge of the first shell 11 and corresponds to the laser emission light source 12; the laser receiver 3 further includes a second lens 20 mounted on a side of the second housing 31 and corresponding to the laser receiver 32. The first perspective mirror 19 and the second perspective mirror 20 are provided to facilitate the passing of light.

The first see-through lens 19 is mounted on the first housing 11 through a first fixing ring 21; the second sight glass 20 is mounted on the second housing 31 through a second fixing ring 22. Specifically, in order to facilitate the detachment and installation of the first see-through lens 19 and the second see-through lens 20, a first fixing ring 21 and a second fixing ring 22 are detachably provided on the first housing 11 and the second housing 31, respectively.

As shown in fig. 4, the laser transmitter 1 further includes a data display 23 disposed on a side of the first housing 11 away from the laser receiver 3 and electrically connected to a circuit board (not shown), more specifically, the side is a back side of the laser transmitter 1. Of course, the laser emission light source 12 is also electrically connected to the circuit board. Through setting up data display screen 23 at the back can make things convenient for the staff to observe directly perceivedly when focusing on data display screen 23 through the result of focusing that produces to can confirm the accuracy of focusing, this kind of contrast of setting up data display screen 23 sets up in the front can have better result of use, and this kind of design has made things convenient for the use promptly, has improved the efficiency of focusing, labour saving and time saving, more humanized.

In order to achieve different security effects, the laser emission host 1 may include a plurality of sets of laser emission light sources 12 and reflectors 13; the laser receiver main unit 3 may include a plurality of laser receivers 32. The specific arrangement can be set according to the actual needs of people, and is not limited in particular, and in the present embodiment, two sets of the laser emitting light source 12, the reflecting mirror 13 and the laser receiver 32 are provided.

The following describes the principle of use of the invention in order to understand the invention:

the positions of the laser emission light source 12 and the reflector 13 are adjusted in advance during the production process, so that the invisible light 1211 and the visible light 1221 are parallel when being emitted and can smoothly irradiate the reflector 13, and those skilled in the art should know that the invisible laser light source 121 and the visible laser light source 122 can be distributed along the front-back direction or the left-right direction, etc.; the incident angles are 45 degrees for both the invisible light 1211 and the visible light 1221 directed to the mirror 13. In the using process, through circuit control, a worker only lights the visible laser light source 122 during the light focusing process, the visible reflected light 1222 is ensured to be emitted to the laser receiver 32 through visual observation, the visible laser light source 122 is turned off after the light focusing process is completed, and the invisible laser light source 121 is turned on, so that the invisible light 1211 can be emitted to the laser receiver 32, and the light focusing process is simple and rapid.

Example two:

as shown in fig. 5 to 7, the present embodiment is different from the first embodiment in that the invisible laser light source 121 and the visible laser light source 122 are respectively provided in two laser emitters 10. Meanwhile, the reflecting mirror 13 is provided with two reflecting mirrors 13 which are parallel arranged, wherein the two reflecting mirrors 13 are respectively a long-wave-pass dichroic mirror 131 and a short-wave-pass dichroic mirror 132, and specifically, the long-wave-pass dichroic mirror 131 and the short-wave-pass dichroic mirror 132 are arranged in bilateral symmetry; the short-wave-pass dichroic mirror 132 is matched with the invisible laser light source 121, and the long-wave-pass dichroic mirror is matched with the visible laser light source 122; the invisible reflected light 1212 is parallel to or coincident with the visible reflected light 1222. In the embodiment, the long-wave dichroic mirror 131 and the short-wave dichroic mirror 132 are arranged to reflect the invisible light 1211 emitted from the invisible laser light source 121 and the visible light 122 emitted from the visible laser light emitter 122, and the invisible reflected light 1212 formed after reflection is parallel to or coincides with the visible reflected light 1222, if the invisible reflected light 1212 coincides with the visible reflected light 1222, the invisible reflected light 1212 only needs to pass through the irradiation position of the visible reflected light 1222 to ensure that the invisible reflected light 1212 also falls onto the laser receiver 32 during the light alignment, so that the light alignment between the invisible laser light source 121 and the laser receiver 32 is completed, if the invisible reflected light 1212 is parallel to the visible reflected light 1222, the gap between the invisible reflected light 1212 and the visible reflected light 1222 only needs to be adjusted to be small enough, so that the difference from the alignment is not much in terms of use effect, so as to ensure that the invisible reflected light 1212 and the visible reflected light 1222 can simultaneously irradiate on the laser receiver 32 and the accuracy during the light alignment is ensured, therefore, the irradiation position of the visible reflected light 1222 can be observed by naked eyes to ensure that the invisible reflected light 1212 also falls on the laser receiver 32, so as to complete the alignment of the invisible laser light source 121 and the laser receiver 32, and the alignment process is simple and convenient.

As shown in fig. 2, in the present embodiment, the visible reflected light 1222 penetrates the short-wave pass dichroic mirror 132 and then is incident on the laser receiver 32. However, it should be understood by those skilled in the art that the positions of the invisible laser light source 121 and the visible laser light source 122 may be reversed, and the reversed positions may cause the invisible reflection light 1212 to penetrate through the long-wavelength dichroic mirror 131 and then to be emitted to the laser receiver 32.

In the present embodiment, the transmission band of the short-wave pass dichroic mirror 132 is 400-760 nm, and the reflection band is greater than 760 nm; the transmission waveband of the long-wave-pass dichroic mirror 131 is larger than 760nm, and the reflection waveband is 400-760 nm. Specifically, the invisible light is infrared light. Through the arrangement, the visible light 1221 can be reflected when being emitted to the long-wave-pass dichroic mirror 131 and can be transmitted when being emitted to the short-wave-pass dichroic mirror 132; the invisible light 1211 is reflected when it is directed to the short-wavelength dichroic mirror 132, and is transmitted when it is directed to the long-wavelength dichroic mirror 131. Therefore, the above arrangement preferably utilizes the reflection of light to achieve the purpose of making the invisible reflected light 1212 parallel to or overlap the visible reflected light 1222, and is ingenious in design.

Of course, the present embodiment also has other structures, but the other structures are the same as the first embodiment, and are not described in detail here.

Example three:

as shown in fig. 8-10, the present embodiment also provides a perimeter infrared laser detector convenient for light, which includes a laser emitting host 1 and a laser receiving host 3; the laser emission host 1 comprises a first shell 11 and a laser emission light source 12 arranged in the first shell 11; the laser emission light source 12 includes an invisible laser light source 121 for emitting invisible light 1211 and a visible laser light source 122 for emitting visible light 1221, in this embodiment, there is one invisible laser light source 121 and one visible laser light source 122, which saves production cost to a certain extent while ensuring the effect of use, and those skilled in the art should know that the number of visible laser light sources 122 can also be set as required; the laser receiver 3 comprises a second housing 31 and a laser receiver 32 disposed in the second housing 31, and of course, a focusing lens may be disposed in front of the laser receiver 32; the invisible light 1211 emitted by the invisible laser light source 121 and the visible light 1221 emitted by the visible laser light source 122 are parallel and close to each other, and the invisible light 1211 and the visible light 1221 can be respectively and directly emitted to the laser receiver 32. In the present embodiment, the invisible laser light source 121 and the visible laser light source 122 are provided in one laser transmitter 10. With reference to fig. 8 and 9, the difference between the present embodiment and the first embodiment is that the laser transmitter 10 is horizontally disposed, i.e. the invisible light 1211 emitted from the invisible laser source 121 and the visible light 1221 emitted from the visible laser source 122 are horizontally emitted and directly emitted onto the laser receiver 32, so that the invisible light 1211 and the visible light 1221 are reflected onto the laser receiver 32 without being reflected by the reflector 13, therefore, the structure is simpler and has an effect of facilitating light, when in production, the gap between the invisible light 1211 and the visible light 1221 is designed to be small, so that the effect of almost overlapping with each other in use is achieved, so that the accuracy of light is not easily affected, and since the invisible light 1211 and the visible light 1221 are parallel (i.e. there is no intersection), the distance between the laser receiver 32 and the laser emitting source 12 can be arbitrarily adjusted, namely, the distance between the laser emitting host 1 and the laser receiving host 3 can be adjusted at will, so that the use in different places is met, and the application range is wide.

Of course, the present embodiment also has other structures, but the other structures are the same as the first embodiment, and are not described in detail here.

In summary, the present invention has a simple and reasonable structure, the position between the laser emitting host 1 and the laser receiving host 3 is not limited, and can be adjusted at will, the present invention has a good use effect and a wide use range, and the irradiation position of the invisible light 1211 can be determined by observing the irradiation position of the visible light 1221, the light focusing process is convenient and fast, the light can be focused without other auxiliary tools, and the visible laser source 122 can be turned off after the position of the visible light 1221 is determined, so that the whole process of focusing the invisible laser source 121 and the laser receiver 32 is completed, and then the present invention can be used normally, and the operation process is simple, intuitive, convenient to operate and low in cost, and the light can be focused with the same convenience when the maintenance is needed, so the maintenance and the overhaul are very convenient.

The present invention is not limited to the above-described embodiments, and various modifications and variations of the present invention are intended to be included within the scope of the claims and the equivalent technology of the present invention if they do not depart from the spirit and scope of the present invention.