CN117092774A

CN117092774A - Laser lens fixing method and device

Info

Publication number: CN117092774A
Application number: CN202310037091.5A
Authority: CN
Inventors: 李新伟
Original assignee: Shenzhen Guoren Light Speed Technology Co ltd
Current assignee: Shenzhen Guoren Light Speed Technology Co ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-11-21

Abstract

The invention belongs to the technical field of laser devices, and particularly relates to a laser lens fixing method and device, wherein the laser lens fixing method comprises the following steps: placing the lens at a placement position of the adjustable lens frame, so that one end face of the lens extends out of the placement position to be in a suspended state; the adjustable mirror bracket is used for adjusting the orientation of the lens so as to meet the use requirement, and the lens is locked and fixed with the adjustable mirror bracket; placing and fixing the bracket below the suspended end surface of the lens, so that a gap is kept between the supporting surface of the bracket and the side surface of the lens; dripping a fixing agent into a gap between the support surface of the bracket and the side surface of the lens to enable the gap to be filled with the fixing agent; after the fixing agent is solidified, the locking and fixing of the adjustable mirror frame to the lens are released, and the adjustable mirror frame is removed so that the lens is completely supported by the support. The method provided by the invention uses an adjustable mirror bracket to align and position the lens, and then uses a fixing agent to fix the lens on the bracket. The invention can reduce the use of the adjustable spectacle frame and reduce the lens deviation caused by the deformation of the adjustable spectacle frame.

Description

Laser lens fixing method and device

Technical Field

The invention belongs to the technical field of laser devices, and particularly relates to a laser lens fixing method and device.

Background

Laser technology is an important invention. Laser technology is currently rapidly evolving and has been applied in a number of fields. At present, transmission of an optical path is mainly realized by adopting optical fibers or lenses, and the lenses play various roles in the optical path, including: reflection lens, beam splitting lens, beam combining lens, focusing lens, filtering lens, imaging lens, beam expanding lens, etc.

The angle and position of the lens in the light path are precisely adjusted to accurately guide the path of the laser beam. The adjustable mirror frame is adopted in the industry to precisely adjust the lenses, and the adjustable mirror frame is fixed after the optimal position and angle are found. The adjustable mirror bracket is generally composed of a front panel and a fixed block, wherein the front panel can fix a lens through a few meters of screws or a pressing sheet, the fixed block is provided with a mirror bracket fixing screw to determine the approximate position, a thread pair and a top tooth screw are arranged to adjust the pitching angle of the lens, a tensioning screw is arranged to fix the adjusted state, a holding screw is further arranged to prevent loosening of the top tooth for preventing sliding teeth, and all the design is to prevent the position of the debugged lens from changing in nano level in the later annual use process.

Although the fixation mode of the adjustable mirror bracket is firm enough, in the later-stage perennial work of the material, the deformation and shrinkage of the material, the release of the hard force of the material and the decline caused by the external acting force of the screw teeth can lead to the nano-level change of the position of the later-stage lens, and the change of the position of the lens directly changes the whole light path; meanwhile, the fixing mode completely depends on the adjustable mirror bracket, the structure of the adjustable mirror bracket is complex, and the adjustable mirror bracket has a plurality of parts and occupies the space of the light path when being placed in the light path.

Disclosure of Invention

The embodiment of the invention aims to provide a laser lens fixing method and aims to solve the problems in the background technology.

The embodiment of the invention is realized in such a way that the laser lens fixing method comprises the following steps:

placing the lens at a placement position of the adjustable lens frame, so that one end face of the lens extends out of the placement position to be in a suspended state;

the adjustable mirror bracket is used for adjusting the orientation of the lens so as to meet the use requirement, and the lens is locked and fixed with the adjustable mirror bracket;

placing and fixing the bracket below the suspended end surface of the lens, so that a gap is kept between the supporting surface of the bracket and the side surface of the lens;

dripping a fixing agent into a gap between the support surface of the bracket and the side surface of the lens to enable the gap to be filled with the fixing agent;

after the fixing agent is solidified, the locking and fixing of the adjustable mirror frame to the lens are released, and the adjustable mirror frame is removed so that the lens is completely supported by the support.

Another object of an embodiment of the present invention is to provide a laser lens fixing apparatus, including:

the adjustable mirror bracket is used for positioning and aligning the lenses; and

the support is used for fixing the lens after positioning and alignment, the top of the support is provided with a supporting surface matched with the side surface shape of the lens, and the lens is fixed on the support through a fixing agent after positioning and alignment.

The method provided by the invention uses an adjustable mirror bracket to align and position the lens, and then uses a fixing agent to transfer and fix the lens on a bracket. The invention can reduce the use of the adjustable lens frame, reduce the cost of light path arrangement, and the same adjustable lens frame can be used for the alignment and positioning of all lenses; meanwhile, the method finally uses the bracket to support the lens, so that tiny dislocation caused by deformation or stress release which are easily generated by excessive parts of the adjustable lens holder is avoided. The method provided by the invention is easy to operate, high in reliability and low in cost.

Drawings

Fig. 1 is a perspective view of a laser lens fixing device according to an embodiment of the present invention;

FIG. 2 is a front view of an adjustable frame according to an embodiment of the present invention;

FIG. 3 is a top view of an adjustable frame according to an embodiment of the present invention;

FIG. 4 is a perspective view of a bracket according to one embodiment of the present invention;

FIG. 5 is a perspective view of a bracket according to another embodiment of the present invention;

FIG. 6 is a perspective view of a bracket according to a further embodiment of the present invention;

fig. 7 is a second perspective view of a bracket according to still another embodiment of the present invention.

In the accompanying drawings: 1. a bottom plate; 2. a fixing seat; 3. an adjustable mirror mount; 4. a bracket; 5. a lens; 6. a first arcuate surface; 7. a groove; 8. an arc arm; 9. a through groove; 10. a fixing ring; 11. a through hole; 12. a boss; 13. and a second arc-shaped surface.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Specific implementations of the invention are described in detail below in connection with specific embodiments.

The method for fixing the laser lens 5 provided by the embodiment of the invention is applied to the device for fixing the laser lens 5 shown in fig. 1, and comprises the following steps:

placing the lens 5 at a placement position of the adjustable mirror bracket 3, so that one end face of the lens 5 extends out of the placement position to be in a suspended state;

the adjustable mirror bracket 3 is used for adjusting the orientation of the lens 5 to meet the use requirement, and the lens 5 and the adjustable mirror bracket 3 are locked and fixed;

the bracket 4 is arranged below the suspended end surface of the lens 5 and fixed, so that a gap is kept between the supporting surface of the bracket 4 and the side surface of the lens 5;

dripping a fixing agent into a gap between the supporting surface of the bracket 4 and the side surface of the lens 5 to enable the gap to be filled with the fixing agent;

after the fixing agent is solidified, the locking and fixing of the adjustable mirror bracket 3 to the lens 5 are released, and the adjustable mirror bracket 3 is removed so that the lens 5 is completely supported by the support 4.

In this embodiment, a two-dimensional adjustable mirror holder 3, a three-dimensional adjustable mirror holder 3, etc. may be used, where the adjustable mirror holder 3 belongs to a conventional device in the optical path, and the structure and the use method of the adjustable mirror holder 3 according to the embodiment of the present invention are not particularly limited, and an exemplary structure of a conventional adjustable mirror holder 3 is shown in fig. 2-3. Wherein, adjustable mirror holder 3 is provided with the position of placing that is used for placing lens 5, places the position and is circular through-hole 11 generally, and the diameter slightly is greater than the external diameter of lens 5, and lens 5 is placed in the back of placing the position, makes the position of lens 5 satisfy the requirement through adjusting adjustable mirror holder 3, later fixes lens 5 on adjustable mirror holder 3, and traditional mode lens 5 adjustment is accomplished after, needs to fix adjustable mirror holder 3 intercommunication lens 5 together. In this embodiment, the support 4 is introduced, and the lens 5 is fixed by using the support 4 after the lens 5 is aligned and fixed.

In this embodiment, the adjustable frame 3 is provided with a locking screw to fix the aligned lens 5 to the placement position. In this embodiment, one difference from the use of the adjustable frame 3 in the general prior art is that when the lens 5 is placed on the placement position, one end surface of the lens 5 needs to be extended beyond the placement position, for example, the thickness of the lens 5 is 20mm, and a portion of the lens 5 needs to be extended and suspended, for example, the thickness of (5-15) mm is extended, so as to facilitate the fixing of the subsequent lens 5 to the support 4.

In this embodiment, the support 4 is provided with a support surface which is not in direct contact with the lens 5, and the fixing agent is added dropwise to the gap between the lens 5 and the support surface, and the fixing agent fills the gap after curing, thereby achieving the fixation of the lens 5. In this embodiment, various glues, preferably those with low deformation and stress after curing, can be used as the fixing agent.

In this embodiment, after the fixative cures, the adjustable frame 3 is removed and the lens 5 is held by the support 4.

The method provided by the invention uses the adjustable mirror bracket 3 to align and position the lens 5, and then uses the fixing agent to transfer and fix the lens 5 on the bracket 4. The invention can reduce the use of the adjustable mirror frame 3, reduce the cost of light path arrangement, and the same adjustable mirror frame 3 can be used for the alignment and positioning of all lenses 5; meanwhile, the method finally uses the bracket 4 to support the lens 5, so that tiny dislocation caused by deformation or stress release which are easily generated by too many parts of the adjustable mirror bracket 3 is avoided. The method provided by the invention is easy to operate, high in reliability and low in cost.

As a preferred embodiment of the present invention, the bracket 4 is provided with a rotatable arc arm 8, and the arc arm 8 is provided with a through slot 9;

the fixing agent is dripped into the gap between the supporting surface of the bracket 4 and the side surface of the lens 5, and then the fixing agent further comprises:

the arc-shaped arm 8 on the bracket 4 is rotated and fixed, so that the arc-shaped arm 8 is positioned above the lens 5 and surrounds the top of the lens 5, and a gap is kept between the arc-shaped arm 8 and the side surface of the lens 5;

and (3) dropwise adding a fixing agent into the through groove 9 of the arc-shaped arm 8 to enable the fixing agent to fill a gap between the arc-shaped arm 8 and the side face of the lens 5.

In this embodiment, the top of the lens 5 can be fixed by the above method, and the upward movement position of the lens 5 is prevented from being deviated due to expansion of the fixing agent.

As a preferred embodiment of the present invention, the support 4 is further provided with a detachably connected fixing ring 10, a plurality of through holes 11 are radially formed in the fixing ring 10, and the diameter of the fixing ring 10 is larger than that of the lens 5;

the above-mentioned steps of releasing the adjustable frame 3 from locking and fixing the lens 5 and removing the adjustable frame 3 to make the lens 5 fully supported by the support 4 include:

the fixing ring 10 is sleeved on one end of the lens 5 facing the adjustable mirror bracket 3 and is fixed on the bracket 4, so that the inner wall of the fixing ring 10 keeps a gap with the side surface of the lens 5;

the fixing agent is dripped into the through hole 11 of the fixing ring 10 to form a plurality of fixing points between the lens 5 and the fixing ring 10.

In this embodiment, after the adjustable mirror frame 3 is removed, a part of the lens 5 in the position is in a suspended state, and at this time, the suspended part can be fixed by arranging the fixing ring 10, so that the problem that the lens 5 is inclined due to the gravity of the lens 5 can be effectively prevented.

As shown in fig. 1, the embodiment of the present invention further provides a laser lens 5 fixing device, where the laser lens 5 fixing device includes:

an adjustable mirror bracket 3, wherein the adjustable mirror bracket 3 is used for positioning and aligning the lenses 5; and

the support 4, the support 4 is used for fixing the lens 5 after the location is aimed at, and support 4 top is provided with a holding surface that matches with lens 5 side shape, and lens 5 is fixed on support 4 through the fixative after the location is aimed at.

In this embodiment, the adjustable frame 3 belongs to existing devices, and fig. 2-3 show an alternative embodiment of the adjustable frame 3, and the invention is not described with respect to the specific structure of the adjustable frame 3. When in use, the adjustable mirror bracket 3 is fixed on the bottom plate 1 through the fixed seat 2, and then the adjustable mirror bracket 3 is used for finding and fixing the lenses 5.

In this embodiment, the stand 4 is also fixed to the base plate 1 when in use, and the base plate 1 is the basis for fixing the adjustable frame 3 and the stand 4.

In this embodiment, the top of the support 4 is provided with a supporting surface matching the shape of the side surface of the lens 5, where the side surface of the lens 5 refers to a cylindrical surface of the lens 5, and where the shape matching refers to the same or similar shape, so as to partially or completely enclose the cylindrical surface of the lens 5. In this embodiment, the fixing agent is glue, preferably glue that deforms and has smaller stress after curing.

As shown in fig. 3, as a preferred embodiment of the present invention, the support surface of the bracket 4 is configured as a first arc surface 6, and the diameter of the first arc surface 6 is larger than the diameter of the lens 5.

In this embodiment, the diameter of the first arcuate surface 6 is made larger than the diameter of the lens 5, so that a certain gap is maintained between the arcuate surface and the lens 5.

As shown in fig. 4, as a preferred embodiment of the present invention, the bracket 4 is provided with a rotatable arc arm 8, and the arc arm 8 is provided with a through slot 9;

the inner side of the arc-shaped arm 8 forms a second arc-shaped surface 13, the second arc-shaped surface 13 has the same shape as the first arc-shaped surface 6, and after the arc-shaped arm 8 is rotationally buckled to the top of the bracket 4, the first arc-shaped surface 6 and the second arc-shaped surface 13 form a whole circle.

In this embodiment, the arc wall and the bracket 4 may be fixed by a screw, the screw is loosened, and the arc arm 8 may rotate around the screw to cover the top of the bracket 4, so that the first arc surface 6 and the second arc surface 13 form a circular hole, and the lens 5 is located in the circular hole.

As a preferred embodiment of the present invention, a groove 7 for accommodating the fixing agent is formed on the inner side of the first arc-shaped surface 6.

In this embodiment, the grooves 7 may make the contact between the fixing agent and the first arcuate surface 6 more reliable, and increase the contact area between the fixing agent and the first arcuate surface 6.

As shown in fig. 5-6, as a preferred embodiment of the present invention, the support 4 is further provided with a detachably connected fixing ring 10, a plurality of through holes 11 are formed in the fixing ring 10 along the radial direction, the diameter of the fixing ring 10 is larger than that of the lens 5, and the fixing ring 10 is used for fixing the end of the lens 5 after the adjustable frame 3 is removed.

In this embodiment, the overhanging portion of the lens 5 can be fixed by providing the fixing ring 10.

As a preferred embodiment of the present invention, the fixing ring 10 is fixed to one side of the bracket 4 by a screw connection.

In the present embodiment, the fixing ring 10 is fixed to the bracket 4 by screws, so that the fixing ring 10 can be easily detached.

As a preferred embodiment of the invention, the underside of the bracket 4 is provided with a boss 12, which boss 12 serves as a support for the bottom of the fixing ring 10.

In the present embodiment, by providing the boss 12, the weight of the fixing ring 10 can be supported, thereby preventing the fixing ring 10 from deflecting the holder 4 to cause misalignment of the lens 5.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. A laser lens fixing method, characterized in that the laser lens fixing method comprises:

2. The laser lens fixing method according to claim 1, wherein the bracket is provided with a rotatable arc arm, and the arc arm is provided with a through groove;

and the fixing agent is dripped into a gap between the supporting surface of the bracket and the side surface of the lens, and then the fixing agent further comprises the following components:

rotating and fixing the arc-shaped arm on the bracket, so that the arc-shaped arm is positioned above the lens and surrounds the top of the lens, and a gap is kept between the arc-shaped arm and the side surface of the lens;

and (3) dropwise adding a fixing agent into the through groove of the arc-shaped arm to enable the fixing agent to fill a gap between the arc-shaped arm and the side surface of the lens.

3. The laser lens fixing method according to claim 1, wherein the bracket is further provided with a detachably connected fixing ring, a plurality of through holes are formed in the fixing ring along the radial direction, and the diameter of the fixing ring is larger than that of the lens;

the method for removing the locking and fixing of the adjustable lens frame to the lens and removing the adjustable lens frame to enable the lens to be completely supported by the bracket further comprises the following steps:

sleeving the fixing ring at one end of the lens facing the adjustable lens holder and fixing the fixing ring on the bracket, so that a gap is kept between the inner wall of the fixing ring and the side surface of the lens;

and (3) dropwise adding a fixing agent into the through hole of the fixing ring to form a plurality of fixing points between the lens and the fixing ring.

4. A laser lens fixation device, characterized in that the laser lens fixation device comprises:

5. The laser lens fixing apparatus of claim 4, wherein the support surface of the bracket is configured as a first arcuate surface, and the first arcuate surface has a diameter greater than the diameter of the lens.

6. The laser lens fixing device according to claim 5, wherein the bracket is provided with a rotatable arc-shaped arm, and the arc-shaped arm is provided with a through groove;

the inner side of the arc arm forms a second arc surface which is the same as the first arc surface, and after the arc arm is rotationally buckled to the top of the bracket, the first arc surface and the second arc surface form a whole circle.

7. The laser lens fixing apparatus of claim 5, wherein the first arcuate surface is internally grooved for receiving a fixing agent.

8. The laser lens fixing device according to claim 1, wherein the support is further provided with a detachably connected fixing ring, a plurality of through holes are formed in the fixing ring in the radial direction, the diameter of the fixing ring is larger than that of the lens, and the fixing ring is used for fixing the end portion of the lens after the adjustable lens holder is removed.

9. The laser lens fixing apparatus of claim 8, wherein the fixing ring is fixedly connected to one side of the bracket by a screw.

10. The laser lens fixing apparatus of claim 9, wherein the lower side of the bracket is provided with a boss for supporting the bottom of the fixing ring.