CN117102663A - Variable-focus laser beam expanding system with adjustable divergence angle and laser processing equipment - Google Patents
Variable-focus laser beam expanding system with adjustable divergence angle and laser processing equipment Download PDFInfo
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- CN117102663A CN117102663A CN202311371340.0A CN202311371340A CN117102663A CN 117102663 A CN117102663 A CN 117102663A CN 202311371340 A CN202311371340 A CN 202311371340A CN 117102663 A CN117102663 A CN 117102663A
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- 230000007306 turnover Effects 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000003754 machining Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002430 laser surgery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/04—Automatically aligning, aiming or focusing the laser beam, e.g. using the back-scattered light
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
- B23K26/0648—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms comprising lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
Abstract
The application relates to a variable-focus laser beam expanding system with an adjustable divergence angle and laser processing equipment, wherein the variable-focus laser beam expanding system with the adjustable divergence angle comprises a shell, a first lens group, a second lens group and a turnover mechanism, and the shell is provided with an installation channel extending along the propagation direction of a laser beam; the first lens group is arranged in the mounting channel; the second lens group is rotatably arranged in the mounting channel along an axis which is perpendicular to the axis direction of the mounting channel so as to have a first state that the lens of the second lens group and the lens of the first lens group are coaxially arranged and a second state that the lens of the second lens group and the lens of the first lens group are staggered; the turnover mechanism is connected with the second lens group to drive the second lens group to switch between a first state and a second state. According to the application, by arranging the rotating second lens group, zooming can be realized, so that the beam expansion angle is adjusted, the application range of the device is enlarged, and different processing requirements are met.
Description
Technical Field
The application relates to the technical field of laser equipment, in particular to a variable-focus laser beam expanding system with an adjustable divergence angle and laser processing equipment.
Background
The laser is widely applied to the fields of laser communication, laser ranging, laser guidance, laser surgery and the like which are closely related to the life of the military and the civilian at present. The laser emits a laser beam having a small emission angle, close to one milliradian, and even if it is emitted to a few kilometers away, the diameter of the beam is increased by a few centimeters, and the output energy is concentrated in a small range. In practical applications, a laser beam expander is often used to expand the diameter of laser to a suitable multiple before transmitting the laser to a specified target.
Patent CN114815123a is a laser beam expander, comprising a front lens group and a rotating lens group; the beam expander front lens group includes: a beam expander front lens barrel, in which a first lens group is arranged; the rotary mirror group includes: the beam expander fixing lens barrel is coaxially and fixedly connected with the front lens barrel of the beam expander, a rotary lens seat of a cylindrical structure is rotationally connected inside the beam expander fixing lens barrel through threads, and a second lens group is arranged in the rotary lens seat; the outer bottom of the beam expander fixing lens barrel is provided with a driving circular ring, and the driving circular ring is connected with the rotating lens base through a third screw; the rotary lens group axially moves along the inside of the beam expander lens barrel by rotating the driving circular ring, and when the virtual focus of the first lens group is overlapped with the real focus of the second lens group, the beam expansion of the laser beam is realized.
However, the prior art only has a fixed beam expansion angle, has a narrow application range, and is difficult to meet different requirements.
Disclosure of Invention
In view of the foregoing, it is necessary to provide a variable-focus laser beam expanding system with an adjustable divergence angle, so as to solve the technical problems in the prior art that the system only has a fixed beam expanding angle, the application range is narrow, and different requirements are difficult to meet.
The application provides a variable-focus laser beam expanding system with adjustable divergence angle, which comprises:
a housing having a mounting channel extending in a laser beam propagation direction;
the first lens group is arranged in the mounting channel;
a second lens group rotatably mounted in the mounting passage along an axis perpendicular to an axial direction of the mounting passage so as to have a first state in which a lens of the second lens group is coaxially disposed with a lens of the first lens group and a second state in which the lens of the second lens group is offset from the lens of the first lens group;
and the turnover mechanism is connected with the second lens group and used for driving the second lens group to switch between the first state and the second state.
Optionally, the first lens group includes a first lens and a second lens arranged at intervals along a propagation direction of the laser beam, and the second lens group is located between the first lens and the second lens.
Optionally, the second lens group includes mount pad, third lens, fourth lens and fifth lens, the middle part of mount pad along perpendicular to the axis rotation on the installation passageway axial direction install in the installation passageway, third lens fourth lens with fifth lens is along laser beam propagation direction interval arrange in the mount pad, fourth lens with have between the fifth lens and dodge the clearance, in order to when the second state, make the laser beam pass dodge the clearance, wherein, tilting mechanism with the mount pad is connected.
Optionally, two opposite sides of the shell are provided with rotating shaft holes communicated with the mounting channel;
the two opposite sides of the mounting seat are provided with rotating shafts, the two rotating shafts and the two rotating shaft holes are in one-to-one correspondence, and the rotating shafts are rotatably mounted in the rotating shaft holes.
Optionally, one of the rotating shafts extends out of the mounting channel from the rotating shaft hole;
the turnover mechanism comprises a driving motor and a transmission assembly, wherein the driving motor is arranged on the shell, and the transmission assembly is connected with a main shaft of the driving motor and the rotating shaft so as to drive the mounting seat to rotate through the driving motor.
Optionally, the transmission assembly includes a driving gear and a driven gear, the driving gear is mounted on a spindle of the driving motor, the driven gear is mounted on the rotating shaft, and the driving gear is meshed with the driven gear.
Optionally, the variable-focus laser beam expanding system with adjustable divergence angle further includes a positioning component, where the positioning component is disposed on the housing, so that when the second lens group is in the first state or the second state, the positioning component is used to position the second lens group.
Optionally, the positioning assembly includes a first magnetic element, a second magnetic element, a first absorbing element and a second absorbing element, where the first magnetic element and the second magnetic element are disposed on two opposite sides of the housing, and the first absorbing element and the second absorbing element are disposed on two opposite sides of the second lens group, so that when in the first state, the first magnetic element is magnetically engaged with the first absorbing element and the second magnetic element is magnetically engaged with the second absorbing element, and when in the second state, the second magnetic element is magnetically engaged with the second absorbing element and the first magnetic element is magnetically engaged with the first absorbing element.
Optionally, the variable-focus laser beam expanding system with adjustable divergence angle further includes a detection component, the detection component includes a detection portion and a trigger portion, the detection portion is mounted on the housing, the trigger portion is mounted on the second lens group, so that the rotation of the second lens group drives the trigger portion to trigger the detection portion, and whether the second lens group is in the first state or not is detected.
In addition, the application also provides laser processing equipment which comprises the variable-focus laser beam expanding system with the adjustable divergence angle.
Compared with the prior art, the variable-focus laser beam expanding system with the adjustable divergence angle has the advantages that the shell is provided with the installation channel extending along the laser beam propagation direction, the first lens group and the second lens group are installed in the installation channel, the second lens group is rotationally arranged along the axis vertical to the axial direction of the installation channel, the variable-focus laser beam expanding system is provided with the first state that the lenses of the second lens group and the lenses of the first lens group are coaxially arranged, and the second state that the lenses of the second lens group and the lenses of the first lens group are staggered, when the variable-focus laser beam is rotationally arranged to the first state, the laser beam passes through the first lens group and the second lens group, 4-time zooming can be realized through the cooperation of the first lens group and the second lens group, when the variable-focus laser beam is rotationally arranged to the second state, and the variable-focus is realized through the second lens group which is rotationally arranged, so that the beam expanding angle is further adjusted, and the different processing requirements of the device are met.
The foregoing description is only an overview of the present application, and is intended to provide a better understanding of the present application, as it is embodied in the following description, with reference to the preferred embodiments of the present application and its details set forth in the accompanying drawings. Specific embodiments of the present application are given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic diagram of a divergence angle adjustable zoom laser beam expanding system according to an embodiment of the present application;
FIG. 2 is a front view of the variable divergence angle zoom laser beam expansion system of FIG. 1;
FIG. 3 is a cross-sectional view of the variable divergence angle zoom laser beam expansion system of FIG. 1 in a first state;
FIG. 4 is a cross-sectional view of the variable divergence angle zoom laser beam expansion system of FIG. 1 in a second state;
FIG. 5 is a schematic perspective view of the second lens assembly of FIG. 1;
FIG. 6 is a top view of the second lens group of FIG. 1;
FIG. 7 is a cross-sectional view of the second lens group of FIG. 1;
FIG. 8 is a light path diagram of the variable divergence angle zoom laser beam expansion system of FIG. 1 in a first state;
fig. 9 is a light path diagram of the variable divergence angle zoom laser beam expansion system of fig. 1 in a second state.
Reference numerals illustrate:
1-casing, 11-mounting channel, 2-first lens group, 21-first lens, 22-second lens, 3-second lens group, 31-mount, 311-pivot, 32-third lens, 33-fourth lens, 34-fifth lens, 4-tilting mechanism, 41-driving motor, 42-driving gear, 43-driven gear, 5-positioning component, 51-first magnetic piece, 52-second magnetic piece, 53-first absorbing piece, 54-second absorbing piece, 6-detecting component, 61-first travel switch, 62-second travel switch, 63-triggering portion.
Detailed Description
The following detailed description of preferred embodiments of the application is made in connection with the accompanying drawings, which form a part hereof, and together with the description of the embodiments of the application, are used to explain the principles of the application and are not intended to limit the scope of the application.
The application provides laser processing equipment which comprises the variable-focus laser beam expanding system with the adjustable divergence angle.
Referring to fig. 1 to 9, the variable-divergence-angle zoom laser beam expanding system includes a housing 1, a first lens group 2, a second lens group 3, and a tilting mechanism 4, wherein the housing 1 has a mounting channel 11 extending along a laser beam propagation direction; the first lens group 2 is arranged in the mounting channel 11; the second lens group 3 is rotatably mounted in the mounting channel 11 along an axis perpendicular to the axis direction of the mounting channel 11 so as to have a first state in which the lens of the second lens group 3 is coaxially disposed with the lens of the first lens group 2 and a second state in which the lens of the second lens group 3 is offset from the lens of the first lens group 2; the tilting mechanism 4 is connected to the second lens group 3 to drive the second lens group 3 to switch between the first state and the second state.
According to the zoom laser beam expanding system with the adjustable divergence angle, the shell 1 is provided with the installation channel 11 extending along the laser beam propagation direction, the first lens group 2 and the second lens group 3 are installed in the installation channel 11, the second lens group 3 is rotatably arranged along the axis perpendicular to the axis direction of the installation channel 11, the zoom laser beam expanding system is provided with a first state that the lens of the second lens group 3 and the lens of the first lens group 2 are coaxially arranged, and a second state that the lens of the second lens group 3 and the lens of the first lens group 2 are staggered, when the zoom laser beam is rotated to the first state, the laser beam passes through the first lens group 2 and the second lens group 3, 4 times of zooming can be achieved through the matched use of the first lens group 2 and the second lens group 3, when the zoom laser beam is rotated to the second state, the laser beam only passes through the first lens group 2, 2 times of zooming can be achieved, and the zoom angle can be further enlarged through the second lens group 3 which is arranged, and the zoom laser beam expanding device can meet different requirements.
Further, referring to fig. 3 to 4, the first lens group 2 includes a first lens 21 and a second lens 22 arranged at intervals along the propagation direction of the laser beam, and the second lens group 3 is located between the first lens 21 and the second lens 22. Specifically, in this embodiment, the first lens 21 and the second lens 22 are respectively located at two opposite ends of the housing 1, and the first lens 21 and the second lens 22 are coaxially disposed, in the second state, the laser beam sequentially passes through the first lens 21 and the second lens 22, so as to form a 2-fold zoom, and the distance between the first lens 21 and the second lens 22 is kept fixed, and the distance is relatively large, so that on one hand, a 2-fold zoom is formed through the parameter design of the first lens 21 and the second lens 22, and on the other hand, enough space can be reserved for the second lens group 3 to rotate.
Further, referring to fig. 5 to 7, the second lens group 3 includes a mounting seat 31, a third lens 32, a fourth lens 33 and a fifth lens 34, wherein a middle portion of the mounting seat 31 is rotatably mounted in the mounting channel 11 along an axis perpendicular to an axial direction of the mounting channel 11, the third lens 32, the fourth lens 33 and the fifth lens 34 are arranged on the mounting seat 31 at intervals along a laser beam propagation direction, and an avoidance gap is formed between the fourth lens 33 and the fifth lens 34, so that the laser beam passes through the avoidance gap in the second state, wherein the turnover mechanism 4 is connected with the mounting seat 31. Specifically, in the first state, the first lens 21, the third lens 32, the fourth lens 33, the fifth lens 34 and the second lens 22 are sequentially arranged at intervals along the propagation direction of the laser beam, at this time, the laser beam sequentially passes through the lenses to form 4 times zooming, and in the first state, the laser beam can pass through the avoidance gap without being blocked by the fourth lens 33 and the fifth lens 34 after passing through the first lens 21 due to the larger avoidance gap, so that the rotation radius of the mounting seat 31 can be reduced, thereby reducing the volume of the whole device.
Further, the specific form of the mounting seat 31 rotatably mounted on the housing 1 is not limited, in this embodiment, referring to fig. 5 to 6, two opposite sides of the housing 1 are provided with holes for communicating with the rotating shaft 311 of the mounting channel 11; the two opposite sides of the mounting seat 31 are provided with rotating shafts 311, two rotating shafts 311 are in one-to-one correspondence with two rotating shaft 311 holes, and the rotating shafts 311 are rotatably arranged in the rotating shaft 311 holes. Specifically, a bearing is further disposed in the hole of the rotating shaft 311, and the rotating shaft 311 is fixedly mounted in the inner ring of the bearing, so that the friction force between the rotating shaft and the bearing can be reduced.
Further, referring to fig. 1 to 2, in the present embodiment, one of the rotating shafts 311 extends out of the mounting channel 11 from the hole of the rotating shaft 311; the turnover mechanism 4 comprises a driving motor 41 and a transmission assembly, the driving motor 41 is arranged on the shell 1, and the transmission assembly is connected with a main shaft of the driving motor 41 and the rotating shaft 311 so as to drive the mounting seat 31 to rotate through the driving motor 41.
Further, the transmission assembly includes a driving gear 42 and a driven gear 43, the driving gear 42 is mounted on the main shaft of the driving motor 41, the driven gear 43 is mounted on the rotating shaft 311, and the driving gear 42 is meshed with the driven gear 43. When the lens is used, the second lens group 3 is driven to switch between the first state and the second state by the positive and negative rotation of the driving motor 41, and the gear transmission is high in transmission precision and compact in structure.
Further, the rotation angle of the second lens group 3 is 90 degrees.
Further, since the rotation angle of the second lens group 3 is 90 degrees, the driven gear 43 is a sector gear, and thus the size of the driven gear 43 can be reduced.
Further, referring to fig. 1 to 3, in the first state or the second state, the second lens group 3 needs to keep the current position fixed, so as to avoid accidental rotation when the second lens group 3 rotates to the first state or the second state, in this embodiment, the variable-divergence-angle zoom laser beam expanding system further includes a positioning component 5, where the positioning component 5 is disposed on the housing 1, so that when the second lens group 3 is in the first state or the second state, the positioning component 5 is used for positioning the second lens group 3. So configured, when the second lens group 3 is in the first state or the second state, the second lens group 3 may be fixed by the positioning assembly 5, so as to avoid accidental rotation of the second lens group 3.
Further, the specific form of the positioning assembly 5 is not limited, in this embodiment, the positioning assembly 5 includes a first magnetic member 51, a second magnetic member 52, a first absorbing member 53 and a second absorbing member 54, the first magnetic member 51 and the second magnetic member 52 are disposed on opposite sides of the housing 1, and the first absorbing member 53 and the second absorbing member 54 are disposed on opposite sides of the second lens group 3, so that in the first state, the first magnetic member is magnetically engaged with the first absorbing member 53 and the second magnetic member is magnetically disengaged with the second absorbing member 54, and in the second state, the second magnetic member is magnetically engaged with the second absorbing member 54 and the first magnetic member is magnetically disengaged with the first absorbing member 53. Specifically, the first absorbent member 53 and the second absorbent member 54 are positioned on opposite sides of the mounting seat 31.
Further, the first magnetic member 51 and the second magnetic member 52 are both magnets, and the first absorbing member 53 and the second absorbing member 54 are both iron blocks.
Further, the variable-focus laser beam expanding system with the adjustable divergence angle further comprises a detection component 6, the detection component 6 comprises a detection part and a triggering part 63, the detection part is mounted on the shell 1, the triggering part 63 is mounted on the second lens group 3, the triggering part 63 is driven to trigger the detection part through rotation of the second lens group 3, and whether the second lens group 3 is in the first state or not is detected.
Specifically, the detection portion includes a first travel switch 61 and a second travel switch 62, the first travel switch 61 and the second travel switch 62 are disposed at intervals on one side of the housing 1, the trigger portion 63 is mounted on a gear of the driven gear 43, the first travel switch 61 and the second travel switch 62 are disposed on the same side as the trigger portion 63, and when the mounting seat 31 rotates, the trigger portion 63 can be driven to move between the first travel switch 61 and the second travel switch 62, when the first travel switch rotates to the first state, the trigger portion 63 abuts against the first travel switch 61, so that it can be determined that the second lens group 3 rotates to a desired position, that is, the driving motor 41 can be controlled to stop rotating, and when the second travel switch rotates to the second state, the trigger portion 63 abuts against the second travel switch 62, that is, that it can be determined that the second lens group 3 rotates to a desired position, that is, that the driving motor 41 can be controlled to stop rotating, that is, and when the second travel switch is rotated to the second state, the second lens group is controlled to stop rotating, the second lens group 41 is disposed to the desired position, so that the accuracy is improved.
The present application is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present application are intended to be included in the scope of the present application.
Claims (10)
1. A variable focus laser beam expansion system with adjustable divergence angle, comprising:
a housing having a mounting channel extending in a laser beam propagation direction;
the first lens group is arranged in the mounting channel;
a second lens group rotatably mounted in the mounting passage along an axis perpendicular to an axial direction of the mounting passage so as to have a first state in which a lens of the second lens group is coaxially disposed with a lens of the first lens group and a second state in which the lens of the second lens group is offset from the lens of the first lens group;
and the turnover mechanism is connected with the second lens group and used for driving the second lens group to switch between the first state and the second state.
2. The variable divergence angle zoom laser beam expansion system of claim 1, wherein the first lens group comprises a first lens and a second lens spaced apart along a direction of propagation of the laser beam, the second lens group being located between the first lens and the second lens.
3. The variable focus laser beam expanding system according to claim 2, wherein the second lens group comprises a mount, a third lens, a fourth lens and a fifth lens, wherein a middle part of the mount is rotatably mounted in the mount along an axis perpendicular to an axial direction of the mount, the third lens, the fourth lens and the fifth lens are arranged on the mount at intervals along a laser beam propagation direction, and an avoidance gap is formed between the fourth lens and the fifth lens, so that the laser beam passes through the avoidance gap in the second state, wherein the turnover mechanism is connected with the mount.
4. The variable focus laser beam expanding system of claim 3, wherein the opposite sides of the housing are provided with spindle holes communicating with the mounting channel;
the two opposite sides of the mounting seat are provided with rotating shafts, the two rotating shafts and the two rotating shaft holes are in one-to-one correspondence, and the rotating shafts are rotatably mounted in the rotating shaft holes.
5. The variable focus laser beam expander system of claim 4, wherein one of the spindles extends from the spindle bore to outside the mounting channel;
the turnover mechanism comprises a driving motor and a transmission assembly, wherein the driving motor is arranged on the shell, and the transmission assembly is connected with a main shaft of the driving motor and the rotating shaft so as to drive the mounting seat to rotate through the driving motor.
6. The variable focus laser beam expander system of claim 5, wherein the transmission assembly comprises a driving gear and a driven gear, the driving gear is mounted on the spindle of the driving motor, the driven gear is mounted on the spindle, and the driving gear is meshed with the driven gear.
7. The variable divergence angle zoom laser beam expansion system of claim 1, further comprising a positioning assembly disposed on the housing for positioning the second lens set when the second lens set is in the first or second state.
8. The variable focus laser beam expander system of claim 7, wherein the positioning assembly comprises a first magnetic element, a second magnetic element, a first absorbing element and a second absorbing element, the first magnetic element and the second magnetic element being disposed on opposite sides of the housing, the first absorbing element and the second absorbing element being disposed on opposite sides of the second lens assembly such that in the first state the first magnetic element magnetically engages the first absorbing element and the second magnetic element is magnetically engaged with the second absorbing element, and in the second state the second magnetic element magnetically engages the second absorbing element and the first magnetic element is magnetically engaged with the first absorbing element.
9. The variable divergence angle zoom laser beam expander system of claim 1, further comprising a detection assembly comprising a detection portion and a trigger portion, the detection portion being mounted to the housing, the trigger portion being mounted to the second lens group, such that rotation of the second lens group causes the trigger portion to trigger the detection portion to detect whether the second lens group is in the first state or the second state.
10. A laser machining apparatus comprising a variable focus laser beam expansion system of any one of claims 1 to 9, wherein the divergence angle is adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311371340.0A CN117102663A (en) | 2023-10-23 | 2023-10-23 | Variable-focus laser beam expanding system with adjustable divergence angle and laser processing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311371340.0A CN117102663A (en) | 2023-10-23 | 2023-10-23 | Variable-focus laser beam expanding system with adjustable divergence angle and laser processing equipment |
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| CN117102663A true CN117102663A (en) | 2023-11-24 |
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| CN202311371340.0A Pending CN117102663A (en) | 2023-10-23 | 2023-10-23 | Variable-focus laser beam expanding system with adjustable divergence angle and laser processing equipment |
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