CN220853489U - Reflective laser targeting system - Google Patents

Abstract

The utility model relates to the technical field of optical device manufacturing, in particular to a reflective laser targeting system. According to the utility model, the incident light is made to be at a preset first reference angle relative to the target surface, the target surface is made to be at a preset second reference angle relative to the plane where the pipe body where the clamping object to be detected is located is placed, and the second reference angle is determined based on the mounting angle required to be met by the clamping object to be detected, so that the optical axis of the optical fiber array is kept unchanged, and the problem that the incident light cannot be incident on the clamping object to be detected or the reflected light cannot normally exit for targeting after deflecting the optical axis due to the existence of isolation devices in the incident light path and/or the reflected light path is solved.

Description

Reflective laser targeting system

Technical Field

The utility model relates to the technical field of optical device manufacturing, in particular to a reflective laser targeting system.

Background

In the manufacturing process of the optical device, it is necessary to determine whether the clamping (mounting) angle of the clamping object of the optical device meets the requirement. In the prior art, a reflective clamping object to be detected (also referred to as a reflecting piece) is judged by laser irradiation, and a main optical axis of an original light path is deflected by reflected light to perform targeting so as to judge whether the angle of the clamping object to be detected meets the requirement. In the prior art, a laser and a target surface are placed at different two ends, incident light and reflected light are positioned at different two ends, and whether the clamping angle of a clamping object to be detected is deviated or not is judged in a mode of deviating a main optical axis by utilizing light path reflection. Such a solution allows laser targeting and is simpler but not suitable for more complex structures on simple structures without other isolation devices (e.g. lenses or isolators, where the isolators would isolate the visible light). On products with complex structures, such as Combo devices, other isolation devices exist on an incident light path or a reflecting light path of a to-be-detected clamping object, so that incident light cannot be incident on the to-be-detected clamping object, or the reflecting light path cannot normally exit for targeting after deflecting an optical axis.

In view of this, how to overcome the defects existing in the prior art and solve the above technical problems is a problem to be solved in the technical field.

Disclosure of utility model

The utility model aims to solve the technical problem of providing a reflective laser targeting system, which solves the problems that in the prior art, when other isolation devices exist on an incident light path or a reflective light path of a clamping object to be tested, incident light cannot be incident on the clamping object to be tested, or the reflected light path cannot normally exit for targeting after deflecting an optical axis.

The utility model adopts the following technical scheme:

The utility model provides a reflection type laser targeting system, which comprises an incidence piece 1 and a target surface 2, wherein an incidence light-passing hole 21 is formed in the target surface 2, the incidence piece 1 is used for emitting incident light, the incident light can pass through the incidence light-passing hole 21, and the incident light forms a preset first reference angle relative to the target surface 2;

the reflection type laser targeting system is suitable for angle measurement of a to-be-detected clamping object 3 arranged in an optical module, the optical module comprises a pipe body 4, a main light through hole 41 is formed in the pipe body 4, and the to-be-detected clamping object 3 is arranged below the main light through hole 41;

The target surface 2 is a preset second reference angle relative to the plane where the pipe body 4 is placed, wherein the second reference angle is determined based on the mounting angle required to be satisfied by the clamping object 3 to be tested.

Further, the incident piece 1 and the target surface 2 are fixed together.

Further, the first reference angle is 90 ° ± 5 °.

Further, the incident light-passing hole 21 is a circular hole, and the aperture of the incident light-passing hole 21 is in a range of 1±0.1 mm.

Further, at least one concentric circle is disposed on the target surface 2, and the concentric circle uses the center of the target surface 2 as the center of a circle.

Further, the incident light-passing hole 21 is located at the center of the target surface 2.

Further, the incident member 1 is a laser.

Further, a reflective groove 42 is formed in the tube body 4, and the reflective groove 42 is disposed below the main light-transmitting hole 41.

Further, the object 3 to be tested is obliquely installed in the reflecting groove 42.

Further, an isolation groove 43 is formed in the pipe body 4 for installing the isolation device 5.

Compared with the prior art, the utility model has the beneficial effects that:

According to the utility model, the incident light forms a preset first reference angle relative to the target surface 2, the target surface 2 forms a preset second reference angle relative to the plane on which the pipe body 4 of the clamping object 3 to be detected is placed, and the second reference angle is determined based on the mounting angle required to be met by the clamping object 3 to be detected. The incidence piece 1 and the target surface 2 are positioned at the same position, incident light and reflected light enter and exit at the same end, so long as the incident light can normally enter the clamping object 3 to be detected, the reflected light can reflect out of the target shooting along the incidence end, the traditional target shooting mode of changing the optical axis can not be like that of the traditional target shooting mode, and the light path can be blocked by other structures at the incidence end or the reflection end when the target shooting is carried out by reflection from one end. The utility model realizes the purpose of keeping the optical axis unchanged, and solves the problem that the incident light cannot be incident on the clamping object 3 to be tested or the reflected light cannot normally exit for targeting after deflecting the optical axis due to the existence of the isolation device 5 in the incident light path and/or the reflected light path.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a prior art laser targeting provided by an embodiment of the present utility model;

FIG. 2 is another schematic diagram of a prior art laser targeting provided by an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a reflective laser targeting system according to an embodiment of the present utility model;

Fig. 4 is a schematic diagram of a position structure of a main light-transmitting hole 41 according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a laser targeting of a reflective laser targeting system according to an embodiment of the present utility model;

FIG. 6 is another schematic diagram of a reflective laser targeting system according to an embodiment of the present utility model;

fig. 7 is a front view of the tube body 4 according to the embodiment of the present utility model;

FIG. 8 is a front view of the pipe body 4 according to the embodiment of the present utility model after the clamping object 3 to be tested is mounted;

fig. 9 is another front view of the tube body 4 according to the embodiment of the present utility model;

fig. 10 is a schematic diagram of an explosion structure of a pipe body 4, a clamp 3 to be tested and an isolation device 5 according to an embodiment of the present utility model;

FIG. 11 is a front view of the pipe body 4 of the embodiment of the present utility model after installation of the isolation device 5;

fig. 12 is a right side view of the pipe body 4 according to the embodiment of the present utility model after the clamping object 3 to be tested and the isolating device 5 are mounted.

Wherein, the reference numerals are as follows: the device comprises an incidence part 1, a target surface 2, an incidence light-passing hole 21, a clamping object 3 to be tested, a tube body 4, a main light-passing hole 41, a reflection groove 42, an isolation groove 43 and an isolation device 5.

Detailed Description

In the description of the present utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc. refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of describing the present utility model and do not require that the present utility model must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the present utility model, unless explicitly specified and limited otherwise, the term "connected" is to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium. Furthermore, the term "coupled" may be a means of electrical connection for achieving signal transmission.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

As shown in fig. 1, taking a three-way pipe without an isolator as an example, the pipe is horizontally placed, a through hole is formed on the pipe, the object to be tested is arranged in the middle of the through hole, a light outlet hole is formed on the upper surface of the pipe, the incident light is emitted by a laser and enters the object to be tested, and the reflected light is emitted to the light outlet hole by the object to be tested. The incident light and the reflected light are positioned at two different ends, and whether the clamping angle of the clamping object to be detected is deviated or not is judged in a mode of deviating the main optical axis by utilizing the reflection of the light path. On the simple structure without other isolation devices, the prior art can realize normal targeting so as to test whether the clamping angle of the clamping object to be tested is qualified. The laser and the target surface are placed at different two ends, namely the optical axes of incident light and refracted light of the existing laser targeting system are not in the same straight line. Because the optical axes of the incident light and the refraction light are not in the same straight line, namely the optical axes are changed, the requirements on the light passing of the clamping object to be detected are higher, and good incident light passing paths, reflection light passing paths, and good incident angles and emergent angles are required, so that laser targeting can be realized.

As shown in fig. 2, taking laser targeting for the object to be tested by using a three-way pipe with an isolator as an example, the pipe is horizontally placed, a through hole penetrating left and right is formed on the pipe, the object to be tested is arranged in the middle of the through hole, the isolator is arranged in the middle of the through hole and is located on the same side as the object to be tested, and the upper surface of the pipe is provided with the light outlet. The incident light is emitted by the laser and enters the isolator, and the incident light is blocked by the isolator so as not to enter the clamping object to be detected, so that the clamping object to be detected cannot emit reflected light, and normal target shooting cannot be performed.

The embodiment 1 of the present utility model provides a reflective laser targeting system, as shown in fig. 3, including an incident piece 1 and a target surface 2, where the target surface 2 is provided with an incident light through hole 21, the incident piece 1 is configured to emit incident light, the incident light can pass through the incident light through hole 21, and the incident light has a preset first reference angle with respect to the target surface 2.

The incident member 1 in the embodiment of the present utility model is a laser. The person skilled in the art can also choose the incident element 1 for emitting the incident light according to the specific use scenario, and the specific model of the laser and the wavelength of the incident light are not limited herein. In an alternative embodiment, the incident light-passing hole 21 is a circular hole, and the aperture of the incident light-passing hole 21 ranges from 1±0.1 mm. The shape and aperture size of the incident light-passing hole 21 can be selected by those skilled in the art without any inventive effort according to the actual use situation. In an actual laser shooting scene, because the optical module is smaller in size, the accuracy requirement on the mounting angle of the to-be-detected clamping object 3 is higher, and the distance between the target surface 2 and the to-be-detected clamping object 3 needs to be set farther, so that as long as the mounting angle has fine deviation, the position of the reflected light emitted by the to-be-detected clamping object 3 on the target surface 2 has larger deviation from the incident light through hole 21.

The first reference angle is 90 DEG + -5 DEG; the first reference angle is selected by a person of ordinary skill in the art according to the actual use situation; and calculating the error of the clamping angle of the clamping object 3 to be detected according to the first reference angle, the length of an incident light path formed by the incident piece 1 emitting incident light to the clamping object 3 to be detected, the included angle between the incident light path and the target surface 2, the length of a reflected light path formed by the clamping object 3 to be detected emitting reflected light to the target surface 2 (or directly penetrating through the incident light through hole 21 in an ideal state), the included angle between the reflected light path and the target surface 2 and the position of the reflected light emitted by the clamping object 3 to be detected on the target surface 2. In an alternative embodiment, the first reference angle is 90 °, so that the incident light is incident perpendicularly to the target surface 2, and when the incident light is perpendicular, the error of the clamping angle can be calculated by only measuring the distance between the incident light through hole 21 and the position where the reflected light strikes the target surface 2.

As shown in fig. 4, the reflective laser targeting system is suitable for angle measurement of a to-be-tested object 3 installed in an optical module, the optical module includes a tube body 4, a main light-passing hole 41 is provided on the tube body 4, and the to-be-tested object 3 is disposed below the main light-passing hole 41.

The target surface 2 is a preset second reference angle relative to the plane where the pipe body 4 is placed, wherein the second reference angle is determined based on the mounting angle required to be satisfied by the clamping object 3 to be tested.

The second reference angle ranges from 0 ° -90 °; the second reference angle is selected by one of ordinary skill in the art according to the actual use scenario. In an alternative embodiment, the pipe body 4 is placed horizontally, a second reference angle is determined as a target clamping angle of the object 3 to be clamped, and the first reference angle is determined as 90 °; if the reflected light directly passes through the incident light through hole 21, the clamping angle of the clamping object 3 to be detected is a target clamping angle; if the reflected light strikes the target surface 2, determining the position of the reflected light striking the target surface 2, and simply calculating to obtain the error between the clamping angle of the clamping object 3 to be detected and the target clamping angle.

According to the reflective laser targeting system, the incident piece 1 and the target surface 2 are positioned in the same direction, and the incident light path and the reflected light path are axisymmetric by taking the object 3 to be tested as a reference during laser targeting through the position relationship between the incident piece 1 and the target surface 2, so that the optical axes of the incident light and the reflected light are unchanged, and the phenomenon that an object (an isolation device 5 shown in fig. 3) exists after the refraction of the incident light path and/or the reflected light path to block light is avoided, so that normal laser targeting cannot be realized.

As shown in fig. 5, taking the first reference angle as an example, the target surface 2 is set to be the target clamping angle corresponding to the ideal mounting state of the object to be clamped 3, and in the ideal mounting state of the object to be clamped 3, the incident light emitted by the incident member 1 enters the incident light path, and when the incident light path is perpendicular to the target surface 2, the incident light enters through the incident light hole 21, and the incident light path is perpendicular to the object to be clamped 3. After the incident light irradiates the clamping object 3 to be detected, the clamping object 3 to be detected emits reflected light, the reflected light enters a reflected light path, and the reflected light path coincides with the incident light path, namely, the original path returns, so that laser targeting is realized.

Because there is a possibility that an error exists between the clamping angle of the clamping object 3 to be tested and the target clamping angle in actual production, at this time, the reflected light path is not coincident with the incident light path, and the reflected light impinges on the target surface 2, as shown in fig. 6, in the state that the clamping angle error exists in the clamping object 3 to be tested, the reflected light path can deviate by a corresponding angle, and the deflection angle of the reflected light path can be obtained by simple calculation and is twice as large as the deflection angle of the clamping object 3 to be tested. The deflection angle of the reflecting light path can be calculated by using a trigonometric function through the distance between the clamping object 3 to be detected and the target surface 2 and the offset distance of the target (the offset distance is the distance between the incident light through hole 21 and the position of the reflecting light on the target surface 2 because the incident light path is perpendicular to the target surface 2), so that the error of the clamping angle of the clamping object 3 to be detected can be calculated to judge whether the error meets the mounting requirement in actual production.

According to the utility model, the incident light is made to be at a preset first reference angle relative to the target surface 2, the target surface 2 is made to be at a preset second reference angle relative to the plane where the pipe body 4 of the clamping object 3 to be detected is placed, and the second reference angle is determined based on the mounting angle required to be met by the clamping object 3 to be detected, so that the optical axis of the optical fiber imaging device is kept unchanged, and the problem that the incident light cannot be incident on the clamping object 3 to be detected or the reflected light cannot normally exit for targeting after deflecting the optical axis due to the existence of the isolation device 5 in the incident light path and/or the reflected light path is solved.

In the prior art, the incident piece 1 and the target surface 2 need to be accurately placed respectively, the position and the angle between the incident piece 1 and the target surface 2 need to be adjusted when the device is used, the operation is complex, and the error is not easy to control. The fixing of the entrance element 1 and the target surface 2 according to the embodiment of the utility model simplifies this operation. The entrance piece 1 and the target surface 2 are fixed together by a bracket, which is not shown in fig. 3, 5 and 6, on which the target surface 2 is arranged, and the entrance piece 1 is also arranged on the bracket to achieve the fixation. In an alternative embodiment, the incident piece 1 and the target surface 2 are manufactured into an integral fixing structure, so that normal operation can be realized only by placing the integral fixing structure, thereby further simplifying operation, reducing implementation difficulty and improving measurement accuracy.

In order to further simplify the operation of measuring the distance between the incident light passing hole 21 and the position where the reflected light impinges on the target surface 2, at least one concentric circle is provided on the target surface 2, the concentric circle being centered on the center of the target surface 2. The concentric circles are used for judging whether the clamping angle of the clamping object 3 to be tested meets the requirement. The diameter of the concentric circles is selected by one of ordinary skill in the art according to the actual use scenario, and the concentric circles are used to determine the distance between the incident light passing hole 21 and the position where the reflected light impinges on the target surface 2. In an alternative embodiment, the incident piece 1 emits red laser to project onto the white target surface 2, and whether the clamping angle error of the clamping object 3 to be tested meets the requirement is judged by judging whether the red point of the reflected light striking on the target surface 2 is inside the concentric circle.

The diameter of the concentric circle is determined based on the clamping angle required to be met by the clamping object 3 to be tested and the distance between the target surface 2 and the clamping object 3 to be tested; the number of concentric circles is determined based on the number of ranges of mounting angles to be measured for the object 3 to be tested. For example, three concentric circles are set on the target surface 2 according to the requirement, and the three concentric circles respectively represent the ranges of three mounting angles required to be measured by the object 3 to be measured, wherein the radius of the first concentric circle is a first radius, the radius of the second concentric circle is a second radius, and the radius of the third concentric circle is a third radius; wherein the first radius is greater than the second radius, and the second radius is greater than the third radius. If the reflected light falls in the first concentric circle on the target surface 2, determining that the clamping angle of the clamping object 3 to be detected is a first clamping angle according to the first radius and the distance between the target surface 2 and the clamping object 3 to be detected; if the reflected light falls in the second concentric circle on the target surface 2, determining that the clamping angle of the clamping object 3 to be detected is a second clamping angle according to the second radius and the distance between the target surface 2 and the clamping object 3 to be detected; if the reflected light falls in a third concentric circle on the target surface 2, determining that the clamping angle of the clamping object 3 to be detected is a third clamping angle according to the third radius and the distance between the target surface 2 and the clamping object 3 to be detected; the third clamping angle is smaller than the second clamping angle, and the second clamping angle is smaller than the first clamping angle. In an actual use scene, whether the clamping angle of the clamping object 3 to be detected meets the requirement can be judged only by judging whether the reflected light falls in a certain preset concentric circle on the target surface 2.

The reflective laser targeting system of the embodiment of the utility model is suitable for angle measurement of the object to be tested 3 installed in the optical module, and the related position structure relationship in the pipe 4 is explained below.

As shown in fig. 7, a reflective groove 42 is formed in the tube body 4, and the reflective groove 42 is disposed below the main light-transmitting hole 41.

As shown in fig. 8, the object to be tested 3 is mounted in the reflecting groove 42 in an inclined manner, and in fig. 8, the object to be tested 3 is mounted in the reflecting groove 42, and fig. 8 only shows the object to be tested 3, but the position of the object to be tested 3, that is, the position of the reflecting groove 42, is substantially coincident with each other in a cross-sectional view.

As shown in fig. 9, the pipe body 4 is internally provided with an isolation groove 43 for installing the isolation device 5.

In an alternative embodiment, as shown in fig. 10, a three-way pipe body is selected as the pipe body 4, a light through hole penetrating through the pipe body 4 is formed in the upper and lower directions of the pipe body 4, a reflection groove 42 is formed in one side of the inside of the pipe body 4, an isolation groove 43 is formed in the other side of the inside of the pipe body, the reflection groove 42 is used for fixedly mounting the object 3 to be tested, as shown in fig. 11, the isolation groove 43 is used for fixedly mounting the isolation device 5, and it should be noted that in fig. 11, the isolation device 5 is mounted in the isolation groove 43, only the isolation device 5 is indicated in fig. 11, but the position of the isolation device 5, that is, the position of the isolation groove 43 is substantially coincident in the sectional view.

As shown in fig. 12, after the object 3 and the spacer 5 are mounted on the pipe body 4, the object 3 is exposed to the outside through the main light passing hole 41. The clamping object 3 to be tested is obliquely arranged in the reflecting groove 42, so that an incident light path is incident to the clamping object 3 to be tested from the main light through hole 41, the reflecting light path is emergent from the clamping object 3 to be tested, and whether the clamping angle of the clamping object 3 to be tested meets the requirement is determined according to the reflected light. In the process, the incident light path and the reflection light path are not contacted with the isolation device 5, so that the isolation device 5 is prevented from blocking light to cause failure of laser targeting.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. The reflection type laser targeting system is characterized by comprising an incidence piece (1) and a target surface (2), wherein an incidence light-passing hole (21) is formed in the target surface (2), the incidence piece (1) is used for emitting incidence light, the incidence light can pass through the incidence light-passing hole (21), and the incidence light forms a preset first reference angle relative to the target surface (2);

the reflection type laser targeting system is used for carrying out angle measurement on a to-be-detected clamping object (3) arranged in an optical module, the optical module comprises a pipe body (4), a main light through hole (41) is formed in the pipe body (4), and the to-be-detected clamping object (3) is arranged below the main light through hole (41);

The target surface (2) is a preset second reference angle relative to the plane where the pipe body (4) is placed, wherein the second reference angle is determined based on the mounting angle required to be met by the clamping object (3) to be tested.

2. The reflective laser targeting system according to claim 1, characterized in that the entrance piece (1) and the target surface (2) are fixed together.

3. The reflective laser targeting system of claim 2, wherein the first reference angle is 90 ° ± 5 °.

4. The reflective laser targeting system according to claim 1, wherein the incident light passing hole (21) is a circular hole, and the aperture of the incident light passing hole (21) ranges from 1±0.1 mm.

5. The reflective laser targeting system according to claim 1, characterized in that at least one concentric circle is arranged on the target surface (2), said concentric circle being centered on the center of the target surface (2).

6. The reflective laser targeting system according to claim 5, wherein the entrance aperture (21) is located in the center of the target surface (2).

7. Reflective laser targeting system according to claim 1, characterized in that the entrance piece (1) is a laser.

8. The reflective laser targeting system according to claim 1, characterized in that a reflective trough (42) is provided in the interior of the tube body (4), the reflective trough (42) being arranged below the main light passing hole (41).

9. The reflective laser targeting system according to claim 8, wherein the object to be tested (3) is mounted obliquely in the reflective trough (42).

10. The reflective laser targeting system according to claim 8, wherein an isolation groove (43) is provided in the interior of the tube body (4) for mounting an isolation device (5).