Laser and three-dimensional scanner

Abstract

The utility model relates to a laser and a three-dimensional scanner, the laser comprises a laser beam generation unit, a focusing lens and an optical scribing unit, and the focusing lens and the optical scribing unit are arranged on a light emitting path of a laser beam generated by the laser beam generation unit; wherein the mounting position of the focusing lens and / or the optical scribing unit can be adjusted. According to the laser, the laser beam passing through the focusing lens can be coaxial with the ridge of the optical scribing unit by adjusting the mounting position of the focusing lens and / or the optical scribing unit, so that the assembling eccentricity and inclination existing in the assembling process of the laser beam generating unit can be made up, and the purpose of correcting the uniformity of the laser beam is achieved; therefore, the brightness uniformity of the laser beam generated by the laser during working can be ensured, so that the function and the precision of the laser during rear-end application can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of laser beam generating device, especially relates to a laser and three-dimensional scanner. BACKGROUND

[0002] The laser is a device capable of emitting a laser beam, and generally comprises a laser beam generating unit, a focusing lens and an optical scribing unit. When the laser beam generating unit works, the laser beam generated thereby is collimated by the focusing lens and then passes through the optical scribing unit to draw a line, and finally the laser beam is emitted outward.

[0003] At present, due to the existence of production errors and assembly errors in the laser beam generating unit of the existing laser, the laser beam generating unit is prone to assembly eccentricity or tilting when assembled, which will cause the optical scribing unit to draw the laser beam unevenly, so that the laser beam emitted by the laser will appear uneven in brightness from left to right, and will affect the function and accuracy of the laser when used at the rear end. SUMMARY

[0004] Therefore, it is necessary to provide a laser and three-dimensional scanner for solving the above technical problems.

[0005] A laser comprises a laser beam generating unit, a focusing lens and an optical scribing unit, wherein the focusing lens and the optical scribing unit are arranged on the light emitting path of the laser beam generated by the operation of the laser beam generating unit.

[0006] The mounting position of the focusing lens and / or the optical scribing unit can be adjusted.

[0007] It can be understood that, by adjusting the mounting position of the focusing lens and / or the optical scribing unit in the laser, the laser beam passing through the focusing lens can be coaxial with the ridge of the optical scribing unit, which can compensate for the assembly eccentricity and tilting of the laser beam generating unit when assembled, and achieve the purpose of correcting the uniformity of the laser beam. In this way, the brightness of the laser beam generated by the operation of the laser can be uniform, so as to ensure the function and accuracy of the laser when used at the rear end.

[0008] In one embodiment, the mounting position of the focusing lens and / or the optical scribing unit can be adjusted in a first direction.

[0009] The first direction is perpendicular to the extension direction of the ridge on the optical scribing unit and perpendicular to the light emitting path of the laser beam.

[0010] It can be understood that, by using the structural features of the optical scribing unit, the laser can ensure that the laser beam passing through the focusing lens is coaxial with the ridge of the optical scribing unit by adjusting the mounting position of the focusing lens and / or the optical scribing unit in the first direction.

[0011] In one of the embodiments, the laser further comprises a first connector and a second connector, and the second connector can be adjusted in position relative to the first connector along the first direction.

[0012] In the embodiment, the focusing lens is mounted in the first connector, and the optical scribing unit is mounted in the second connector.

[0013] It can be understood that, by using the above structure, the laser can adjust the mounting position of the optical scribing unit in the first direction by adjusting the mounting position of the second connector in the first direction of the first connector, which facilitates the adjustment of the uniformity of the laser beam during the operation of the laser and simplifies the structure of the laser.

[0014] In one of the embodiments, a sliding fit structure is formed between the first connector and the second connector, and the first connector and the second connector are connected in sliding fit along the first direction through the sliding fit structure.

[0015] In the embodiment, the sliding fit structure extends along the first direction.

[0016] It can be understood that, by using the above structure, the user can adjust the mounting position of the second connector in the first direction of the first connector by pushing the second connector, which ensures the consistency of the direction of the second connector during the adjustment of the mounting position and facilitates the adjustment of the second connector.

[0017] In one of the embodiments, the laser further comprises a locking member, which can lock the second connector after the adjustment of the position to the first connector and make the laser beam passing through the focusing lens coaxial with the ridge of the optical scribing unit.

[0018] It can be understood that, by using the locking member to lock the second connector after the adjustment of the position to the first connector, the displacement of the second connector on the first connector during the normal operation of the laser can be prevented, and the uniformity of the laser beam during the operation of the laser can be ensured.

[0019] In one of the embodiments, the laser further comprises a first connector and a base, and the first connector can be adjusted in position relative to the base along the first direction.

[0020] The focusing lens is installed in the first connector, and the laser beam generating unit is installed in the base.

[0021] It can be understood that, by the above structure, the laser can adjust the installation position of the focusing lens in the first direction by adjusting the installation position of the first connector in the first direction of the base, so as to meet the use requirement of adjusting the uniformity of the laser beam when the laser works.

[0022] In one of the embodiments, the laser further comprises an optical beam splitting unit arranged on the light path of the laser beam, for splitting the laser beam, so that the laser can emit multiple laser beams when it works.

[0023] It can be understood that, by the structure of the optical beam splitting unit, the laser can emit multiple laser beams when it works, so as to meet the use requirement of the user for the multi-line laser of the laser.

[0024] In one of the embodiments, the optical beam splitting unit is arranged between the focusing lens and the optical scribing unit, for splitting the laser beam passing through the focusing lens.

[0025] In one of the embodiments, the laser further comprises a light shielding member arranged on the light path of the laser beam passing through the optical scribing unit, for shielding the excess part of the laser beam.

[0026] It can be understood that, by the light shielding member, the excess part of the laser beam is shielded, so as to further ensure the uniformity of the laser beam when the laser works.

[0027] In addition, the application further provides a three-dimensional scanner comprising the above-mentioned laser.

[0028] Due to the application of the above technical solution, the application has the following advantages compared with the prior art:

[0029] The laser and the three-dimensional scanner claimed in the application adjust the installation position of the focusing lens and / or the optical scribing unit in the laser, so that the laser beam passing through the focusing lens is coaxial with the ridge of the optical scribing unit, so as to compensate for the assembly eccentricity and inclination when the laser beam generating unit is assembled, and correct the uniformity of the laser beam, so as to ensure the uniformity of the laser beam when the laser works, and thus ensure the function and precision when the laser is applied at the rear end. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only represent some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0031] Figure 1 The structural schematic diagram of the laser provided by an embodiment of the present application.

[0032] Figure 2 The structural schematic diagram of the laser provided by an embodiment of the present application.

[0033] Figure 3 The structural schematic diagram of the laser provided by an embodiment of the present application. Figure 2 The structural schematic diagram of the laser provided by an embodiment of the present application.

[0034] Reference signs: 100, laser; 10, laser beam generating unit; 20, focusing lens; 30, optical scribing unit; 31, ridge; 40, first connector; 50, second connector; 60, base; 70, optical beam splitting unit; 80, light shielding member. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only represent some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0036] It should be noted that when an element is referred to as "provided on" another element, it can be directly provided on the other element or there can be a middle element. When an element is referred to as "provided on" another element, it can be directly provided on the other element or there can be a middle element. When an element is referred to as "fixed on" another element, it can be directly fixed on the other element or there can be a middle element.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application only for the purpose of describing specific embodiments and is not intended to limit the present application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] As Figure 1 ,Figure 2 As shown in the drawings, the laser 100 provided by the present application comprises a laser beam generating unit 10, a focusing lens 20 and an optical scribing unit 30, the focusing lens 20 and the optical scribing unit 30 are arranged on the light path of the laser beam (not shown in the drawings) generated by the working of the laser beam generating unit 10; wherein the installation position of the focusing lens 20 and / or the optical scribing unit 30 can be adjusted so that the laser beam after passing through the focusing lens 20 is coaxial with the ridge 31 of the optical scribing unit 30. It should be noted that when the laser beam after passing through the focusing lens 20 is coaxial with the ridge 31 of the optical scribing unit 30, the optical scribing unit 30 can uniformly draw the laser beam passing through the optical scribing unit 30, thereby ensuring the uniformity of the laser beam emitted by the optical scribing unit 30.

[0039] As can be seen from the above, the laser 100 can adjust the installation position of the focusing lens 20 and / or the optical scribing unit 30 to make the laser beam after passing through the focusing lens 20 coaxial with the ridge 31 of the optical scribing unit 30, which can compensate for the assembly eccentricity and tilt of the laser beam generating unit 10 during assembly, and achieve the purpose of correcting the uniformity of the laser beam. In this way, the uniformity of the laser beam generated by the laser 100 during working can be ensured, thereby ensuring the function and precision of the laser 100 during the application of the rear end.

[0040] It should be noted that the laser beam generating unit 10 described above can be a laser diode, a heterostructure laser, a bar-shaped structure laser, a GaAIAs / GaAs laser, an nGaAsP / InP laser, a quantum well laser, a surface emitting laser, and a microcavity laser. The optical scribing unit 30 described above can be a Powell prism, a cylindrical lens, etc.

[0041] As shown in the drawings, Figure 1 , Figure 2 The installation position of the focusing lens 20 and / or the optical scribing unit 30 can be adjusted in the first direction. That is, the laser 100 can use the structural characteristics of the optical scribing unit 30 to ensure that the laser beam after passing through the focusing lens 20 is coaxial with the ridge 31 of the optical scribing unit 30 and the uniformity of the laser beam emitted by the laser 100 during working by adjusting the installation position of the focusing lens 20 and / or the optical scribing unit 30 in the first direction. Here, the first direction is perpendicular to the extension direction of the ridge 31 on the optical scribing unit 30 and perpendicular to the light path of the laser beam.

[0042] As shown in the drawings, Figures 1 to 3As shown, in an embodiment, the laser 100 further comprises a first connector 40 and a second connector 50, the focusing lens 20 is mounted in the first connector 40, the optical scribing unit 30 is mounted in the second connector 50, and the second connector 50 is capable of position adjustment relative to the first connector 40 along the first direction. That is, the laser 100 of this embodiment can realize the adjustment of the mounting position of the optical scribing unit 30 in the first direction by adjusting the mounting position of the second connector 50 in the first direction of the first connector 40, which can facilitate the adjustment of the laser beam emission uniformity of the laser 100 during operation and simplify the structure of the laser 100.

[0043] It should be noted that since the optical scribing unit 30 is arranged outside the focusing lens 20, when the optical scribing unit 30 is adjusted in position in the first direction under the driving of the second connector 50, the assembly relationship between the focusing lens 20 and the laser beam generating unit 10 will not be affected, which not only simplifies the structural improvement of the laser 100 required to realize the adjustment of the mounting position of the optical scribing unit 30 in the first direction, but also facilitates the subsequent adjustment of the mounting position of the second connector 50 in the first direction of the first connector 40.

[0044] As preferred, a sliding fit structure (not shown in the figure) is formed between the first connector 40 and the second connector 50, and the first connector 40 and the second connector 50 are connected in sliding fit along the first direction through the sliding fit structure; wherein the sliding fit structure extends along the first direction. That is, the second connector 50 of this embodiment is connected in sliding fit with the first connector 40 in the first direction, so that the user can realize the adjustment of the mounting position of the second connector 50 in the first direction of the first connector 40 by pushing the second connector 50, which can ensure the consistency of the direction of the second connector 50 when adjusting the mounting position and facilitate the adjustment operation of the second connector 50. Here, the sliding fit structure includes but is not limited to dovetail groove, T-shaped groove or concave groove, of course, in other embodiments, the sliding fit structure can also be configured as a sliding rail, guide rail, etc.

[0045] In one embodiment, the laser 100 further comprises a locking member (not shown) capable of locking the position-adjusted second connector 50 to the first connector 40 and making the laser beam passing through the focusing lens 20 coaxial with the ridge 31 of the optical scribing unit 30. That is, this embodiment can lock the position-adjusted second connector 50 to the first connector 40 with the locking member, so as to prevent the second connector 50 from moving on the first connector 40 when the laser 100 is working normally and ensure the uniformity of the laser beam when the laser 100 is working. Here, the locking member includes but is not limited to adhesive, screw or buckle. Of course, in other embodiments, the locking member can also be a block, which can make the second connector 50 fixed to the first connector 40 in a tight fit manner when the block is inserted between the first connector 40 and the second connector 50.

[0046] As shown in FIG. 1, Figure 1 In one embodiment, the laser 100 further comprises a base 60, the laser beam generating unit 10 is installed in the base 60, and the first connector 40 can be position-adjusted relative to the base 60 along the first direction. That is, this laser 100 can also realize the adjustment of the installation position of the focusing lens 20 in the first direction by adjusting the installation position of the first connector 40 in the first direction of the base 60, so as to meet the use requirement of adjusting the uniformity of the laser beam when the laser 100 is working. Here, when the installation position of the first connector 40 in the first direction of the base 60 is adjusted, the installation position of the second connector 50 for bearing the optical scribing unit 30 in the first direction of the base 60 remains unchanged, so as to meet the use requirement of adjusting the installation position of the ridge 31 of the optical scribing unit 30 in the first direction and finally making the laser beam passing through the focusing lens 20 coaxial with the ridge 31 of the optical scribing unit 30. Here, the implementation manner of how to adjust the installation position of the first connector 40 in the first direction of the base 60 can be set according to the use requirement, which will not be described here.

[0047] It should be noted that when the laser 100 is adjusted by adjusting the installation position of the second connector 50 in the first direction of the first connector 40, the first connector 40 can be assembled into the base 60 in a plug-in fit manner.

[0048] As shown in FIG. 1, Figure 1 , Figure 2As shown, in an embodiment, the laser 100 further comprises an optical beam splitting unit 70, which is arranged on the light emitting path of the laser beam and is used for splitting the laser beam so that the laser 100 can emit multiple laser beams when working, thus meeting the user's demand for multi-line laser of the laser 100. Preferably, the optical beam splitting unit 70 is arranged between the focusing lens 20 and the optical scribing unit 30 and is used for splitting the laser beam passing through the focusing lens 20. Specifically, the optical beam splitting unit 70 can be assembled to one end of the first connector 40 which faces the second connector 50, and the focusing lens 20 can be assembled to one end of the first connector 40 which faces the base 60. It can be understood that in other embodiments, the optical beam splitting unit 70 can also be arranged behind the optical scribing unit 30 and is used for splitting the laser beam passing through the optical scribing unit 30, or the laser 100 can not be provided with the optical beam splitting unit 70 so that the laser 100 can emit one laser beam when working. It should be noted that the optical beam splitting unit 70 can be a grating sheet, a prism, etc.

[0049] As shown, Figure 1 The laser 100 further comprises a light shielding piece 80, which is arranged on the light emitting path of the laser beam passing through the optical scribing unit 30 and is used for shielding the excess part of the laser beam. That is, the laser 100 can shield the excess part of the laser beam by using the light shielding piece 80, thus further ensuring the uniformity of the laser beam emitted when the laser 100 works. Here, the light shielding piece 80 is configured as a light shielding structure, and the light shielding piece 80 can be sleeved to one end of the second connector 50 which faces away from the first connector 40.

[0050] In summary, the laser 100 of the present application can compensate for the assembly eccentricity and tilt of the laser beam generating unit 10 during assembly by adjusting the installation positions of the focusing lens 20 and / or the optical scribing unit 30, thus ensuring the uniformity of the laser beam generated when the laser 100 works, thereby ensuring the function and precision of the laser 100 when applied at the rear end.

[0051] In addition, the present application further provides a three-dimensional scanner comprising the laser 100 described above.

[0052] The technical features of the above embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present application.

[0053] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not used as a limitation to the present application, and as long as the above embodiments are made within the scope of the present application, the appropriate changes and variations of the above embodiments fall within the scope of the present application.

Claims

1. A laser, characterized by, The laser (100) comprises a laser beam generating unit (10), a focusing lens (20) and an optical scribing unit (30), the focusing lens (20) and the optical scribing unit (30) are arranged on the light emitting path of the laser beam generated by the working of the laser beam generating unit (10); The mounting position of the focusing lens (20) and / or the optical scribing unit (30) can be adjusted.

2. The laser of claim 1, wherein, The mounting position of the focusing lens (20) and / or the optical scribing unit (30) can be adjusted in a first direction; The first direction is perpendicular to the extension direction of the ridge (31) on the optical scribing unit (30) and perpendicular to the light emitting path of the laser beam.

3. The laser of claim 2, wherein, The laser (100) further comprises a first connector (40) and a second connector (50), the second connector (50) can be adjusted in position relative to the first connector (40) along the first direction; The focusing lens (20) is mounted in the first connector (40), and the optical scribing unit (30) is mounted in the second connector (50).

4. The laser of claim 3, wherein, A sliding fit structure is formed between the first connector (40) and the second connector (50), and the first connector (40) is slidably connected with the second connector (50) along the first direction through the sliding fit structure; The sliding fit structure extends along the first direction.

5. The laser of claim 3, wherein, The laser (100) further comprises a locking member, which can lock the second connector (50) after position adjustment to the first connector (40).

6. The laser of claim 2, wherein, The laser (100) further comprises a first connector (40) and a base (60), the first connector (40) can be adjusted in position relative to the base (60) along the first direction; The focusing lens (20) is mounted in the first connector (40), and the laser beam generating unit (10) is mounted in the base (60).

7. The laser of claim 1, wherein, The laser (100) further comprises an optical beam splitting unit (70), which is arranged on the light emitting path of the laser beam and is used for splitting the laser beam so that the laser (100) can emit multiple laser beams when working.

8. The laser of claim 7, wherein, The optical beam splitting unit (70) is arranged between the focusing lens (20) and the optical scribing unit (30) and is used for splitting the laser beam passing through the focusing lens (20).

9. The laser of claim 1, wherein, The laser (100) further comprises a light shielding member (80), which is arranged on the light emitting path of the laser beam after passing through the optical scribing unit (30) and is used for shielding the excess part of the laser beam.

10. A three-dimensional scanner characterized by, The laser (100) comprises the laser (100) according to any one of claims 1 to 9.

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