CN108890143B - Laser beam energy control structure of laser marking equipment - Google Patents
Laser beam energy control structure of laser marking equipment Download PDFInfo
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- CN108890143B CN108890143B CN201811070992.XA CN201811070992A CN108890143B CN 108890143 B CN108890143 B CN 108890143B CN 201811070992 A CN201811070992 A CN 201811070992A CN 108890143 B CN108890143 B CN 108890143B
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- light
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- laser beam
- laser
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- 238000010330 laser marking Methods 0.000 title claims abstract description 15
- 230000000903 blocking effect Effects 0.000 claims abstract description 90
- 230000004888 barrier function Effects 0.000 claims abstract description 66
- 239000011521 glass Substances 0.000 claims abstract description 31
- 230000000149 penetrating effect Effects 0.000 claims abstract description 23
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000000034 method Methods 0.000 claims 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- B23K26/36—Removing material
- B23K26/361—Removing material for deburring or mechanical trimming
-
- 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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides a laser beam energy control structure of laser marking equipment, which comprises a focusing device; the focusing device is provided with a light penetrating component, and the light penetrating component comprises a magnifying glass, a light beam leveling mirror and a focusing mirror which are sequentially arranged; the magnifying glass is connected with the focusing guide rail structure; a light barrier is arranged on one side of the light beam incident surface of the magnifier, and the light barrier at least comprises a light barrier; the light barrier is of a sheet structure and is provided with a plurality of light blocking holes; the light barrier is vertically arranged, the light blocking holes are parallel to the light penetrating component, and the holes of the light blocking holes correspond to the light penetrating component; the light blocking holes are recessed inwards along the surface of the light blocking plate to form transparent annular holes; the inner annular wall and the outer annular wall of the through annular hole jointly form a light blocking groove; according to the structure, the light blocking plate is arranged in front of the light penetrating component, so that the laser beam with an overlarge included angle changes the light path, more laser beam energy is incident to the mirror surface of the magnifying glass, and marking errors are reduced.
Description
Technical Field
The invention relates to the technical field of marking and cutting of laser equipment, in particular to a laser beam energy control structure of laser marking equipment.
Background
The laser marking machine irradiates the surface of various workpieces with high energy density laser beam to evaporate the surface material of the matter or change its color to expose deep matter or to produce trace or burn out part of matter with light energy to display the etched pattern or text.
More specifically, the laser marking machine is mainly applied to occasions requiring finer precision, such as electronic components, integrated circuits, mobile phone communication, hardware, tool accessories, precise instruments, glasses clocks, jewelry, steam fittings, building materials and the like.
The existing laser marking machine generally comprises a laser, a focusing device and a galvanometer cavity; along with the development of laser marking and cutting machine technology, the equipment requirements for marking and cutting are higher and higher when marking and cutting large-sized articles, so that the high efficiency is required to be embodied, and the waste after marking and cutting is also higher in requirement;
laser marking is a technology of marking by focusing a laser beam at a point by using a field lens, and the accuracy of a marking machine is determined to a certain extent by controlling the energy of the laser beam, so that the energy control of the laser beam is particularly important in the structural design of the marking machine.
At present, the marking light path of the laser marking machine is as follows: the laser emits laser beams, the laser beams enter the focusing device, the laser beams are adjusted through the focusing device and then enter the galvanometer cavity, and finally the laser beams are focused into light spot points by the galvanometer cavity to carry out marking, so that marking operation is realized. The prior art focusing device generally comprises a magnifying glass, a beam leveling mirror and a focusing mirror which are sequentially arranged; the laser beam enters the galvanometer cavity, the incident laser beam is amplified by a magnifying glass (concave lens) with a certain amplitude, then the amplified laser beam is leveled by a beam leveling mirror (convex lens), and finally the leveled laser beam is focused into a light spot by a focusing mirror and enters the galvanometer cavity.
However, the structural design of such a focus regulator has the following disadvantages: generally, the energy value of the laser beam emitted by the laser is calculated in advance by the computer, the computer controls the laser to emit the laser beam, and after the laser beam enters the magnifier, the laser beam possibly has a too large included angle after being amplified, and the laser beam cannot completely enter the magnifier, so that the final marked light spot has the problems of insufficient energy, unexpected light spot shape, poor marking effect, marking error and the like.
Disclosure of Invention
The invention aims to provide a laser beam energy control structure of laser marking equipment, aiming at the defects of the prior art, and the structure ensures that laser beams with overlarge included angles change the light path by arranging a light barrier in front of a light penetrating component, so that more laser beam energy is incident to a mirror surface of a magnifying glass, the finally-obtained light spot energy can reach the expected standard, the light spot shape accords with the expected, and the marking error is reduced.
In order to achieve the above purpose, the present invention is realized by the following technical scheme:
the laser beam energy control structure of the laser marking equipment comprises a base of the marking equipment, wherein a marking platform for placing a marking object is arranged on the base, a housing is arranged on the base, a supporting frame is arranged on the base and positioned in the housing, and a marking assembly is arranged on the supporting frame;
the marking assembly at least comprises a laser generator, a focusing device and a plurality of reflecting mirrors, wherein the reflecting mirrors are connected with a motor shaft, and laser emitted by the laser generator is reflected to a marking platform through the reflecting mirrors;
the focusing device comprises an optical path cavity, a circuit cavity and a scanning part; and a light penetrating component is arranged in the light path cavity along the direction close to the scanning part and is connected with the laser generator.
The light penetrating component comprises a magnifying glass, a light beam leveling mirror and a focusing mirror which are sequentially arranged; the magnifying glass is connected with the focusing guide rail structure.
Specifically, the focusing guide rail structure is driven by a motor, and the distance between the magnifying glass and the light beam leveling glass is adjusted to realize focusing.
The magnifying glass is characterized in that a light barrier is arranged on one side of a light beam incident surface of the magnifying glass, and the light barrier at least comprises a light barrier.
The light barrier is of a sheet structure and is provided with a plurality of light blocking holes and connecting holes; the light blocking plate is vertically arranged, the light blocking holes are parallel to the light penetrating assembly, the holes of the light blocking holes correspond to the light penetrating assembly, and the lower ends of the light blocking holes are connected with the movable guide rail;
the light blocking holes are recessed inwards along the surface of the light blocking plate to form transparent annular holes; the inner annular wall and the outer annular wall of the through annular hole jointly form a light blocking groove;
preferably, the depth of the light blocking groove is 1/2-2/3 of the thickness of the light blocking plate.
Preferably, the inner wall of the light blocking groove is a smooth curved surface; the junction of the bottom of the light blocking groove, the inner annular wall and the outer annular wall is a curved surface.
Preferably, the wall surface material of the light blocking groove is black anodized aluminum.
Specifically, black anodized aluminum is adopted on the wall surface of the light blocking groove, so that light energy falling into the light blocking groove can be absorbed, and damage to surrounding components is reduced.
Preferably, the bottom surface of the bottom of the light blocking groove is a straight surface or a concave curved surface.
Specifically, when the bottom surface of the bottom of the light blocking groove is a concave curved surface, part of light beams can fall into the light blocking groove when the light beams cannot pass through the light blocking hole, if the bottom of the light blocking groove is a concave curved surface, contact points between the light blocking groove and light rays are increased, and the light beams entering the light blocking groove can be continuously reflected in the groove body, so that the energy of the light rays finally reflected out of the groove body is weakened greatly, and burning loss to surrounding parts is reduced.
Preferably, the shape of the light blocking hole is circular.
The connecting holes are used for fixing the light barrier on the focusing guide rail structure;
the light barrier further comprises a movable guide rail; the bottom end of the light barrier is also provided with a connecting base which is connected with the movable guide rail;
specifically, a user can connect the light barrier with the movable guide rail through the connecting base according to the needs and place the light barrier at the front end of the light penetrating component; or is directly fixed on the focusing guide rail structure through the light barrier connecting hole.
Preferably, the moving guide rail is a linear motor.
Preferably, the diameter of the hole of the light blocking hole is smaller than or equal to the diameter of the mirror surface of the magnifying glass.
Preferably, the diameters of the holes of the plurality of light blocking holes are different.
Specifically, a plurality of light blocking holes are formed in the light blocking plate, and the design purpose of the light blocking holes is to increase the practicability of the light blocking plate; the light blocking holes with different diameters are formed in the plate, so that a user can select according to the use requirement of the plate.
Preferably, an air cooling structure is arranged on the peripheral side of the light barrier.
Specifically, part of the laser beam is reflected after being blocked by the light barrier, and the reflected beam is irradiated on a part on the periphery of the light barrier, so that the laser beam has a certain amount of heat due to the fact that the laser beam stores larger energy; if the air cooling structure is arranged on the periphery of the component, the heat dissipation of the component can be effectively assisted, and the damage of the component caused by overhigh heat is avoided.
The invention has the beneficial effects that:
(1) According to the laser beam energy control structure, the light blocking plate structure is arranged in front of the light penetrating component, so that the laser beam with an excessive included angle changes the light path, more laser beam energy is incident to the mirror surface of the magnifying glass, and marking errors are reduced; the light blocking plate is provided with a plurality of light blocking holes with different diameters, so that a user can select the light blocking holes with corresponding diameters according to the needs; the light blocking hole is provided with a light blocking groove for absorbing light beams, so that most of blocked laser beams are absorbed into the light blocking groove, and damage to peripheral parts caused by laser beam reflection is avoided.
(2) According to the laser beam energy control structure, the light barrier is further provided with the connecting base used for connecting the movable guide rail, so that the proportion of the light barrier holes to the mirror surface of the light penetrating component can be adjusted according to actual needs, and the practicability of the light barrier is enhanced; the light barrier is simple in structure and low in production cost, can be better suitable for marking equipment, and solves the problems that the finally marked light spots are insufficient in energy, the shape of the light spots is not in accordance with expectations, the marking effect is poor or marking errors exist.
Drawings
Fig. 1 is a schematic structural diagram of a marking apparatus according to embodiments 1 and 2 of the present invention;
fig. 2 is a schematic view illustrating the internal structure of a focusing apparatus according to embodiments 1 and 2 of the present invention;
fig. 3 is a schematic view of an internal light passing component of a focusing device according to embodiments 1 and 2 of the present invention;
FIG. 4 is a schematic view of the position of the light barrier according to embodiment 1 of the present invention;
fig. 5 is a schematic structural diagram of a light barrier according to embodiment 1 of the present invention;
fig. 6 is a schematic cross-sectional view of a light barrier according to embodiment 1 of the present invention;
FIG. 7 is a schematic cross-sectional view of a light barrier according to embodiment 1 of the present invention;
FIG. 8 is a schematic view of the position of the light barrier according to embodiment 2 of the present invention;
FIG. 9 is a schematic view of a light barrier and a portion of a light passing assembly according to embodiment 2 of the present invention;
fig. 10 is a schematic structural view of a light barrier according to embodiment 2 of the present invention;
fig. 11 is a schematic diagram of the optical path principle of embodiments 1 and 2 of the present invention.
Description of the reference numerals
A focusing device;
1 magnifying glass, 2 light beam leveling glass, 3 focusing glass, 4 focusing guide rail structure, 5 motor and 6 light barrier;
11, a light beam incident surface, 61 light barrier;
61 a light barrier, 62 a moving guide rail;
611 big light blocking holes, 612 small light blocking holes, 613 connecting holes, 614 connecting the base;
611a inner annular wall, 611b outer annular wall, 611c light blocking slot.
FIG. 11 is a schematic view of the optical path principle, wherein the dotted line represents the original path of the optical path when the light barrier is not provided; the solid line represents a specific path of the optical path; black dots represent the focal point (i.e. the spot).
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
Example 1
As shown in fig. 1-7 and fig. 11, embodiment 1 provides a laser beam energy control structure of a laser marking device, which comprises a base of the marking device, wherein a marking platform for placing a marking object is arranged on the base, a housing is arranged on the base, and a supporting frame which is arranged on the base and is positioned in the housing, and a marking assembly is arranged on the supporting frame;
the marking assembly at least comprises a laser generator, a focusing device A and a plurality of reflecting mirrors, wherein the reflecting mirrors are connected with a motor shaft, and laser emitted by the laser generator is reflected to a marking platform through the reflecting mirrors;
the focusing device A comprises an optical path cavity, a circuit cavity and a scanning part; and a light penetrating component is arranged in the light path cavity along the direction close to the scanning part and is connected with the laser generator.
The light penetrating component comprises a magnifying glass 1, a light beam leveling glass 2 and a focusing glass 3 which are sequentially arranged; the magnifier 1 is connected with a focusing guide rail structure 4.
Specifically, the focusing guide rail structure 4 is driven by the motor 5, and the distance between the magnifier 1 and the beam leveling mirror 2 is adjusted to realize focusing.
The magnifying glass 1 is provided with a light barrier 6 on one side of the light beam incident surface 11, and the light barrier comprises a light barrier 61.
The light barrier 61 is in a sheet structure, and the light barrier 61 is provided with two light barrier holes 611 and 612 (the diameters of the two light barrier holes are inconsistent, namely a large light barrier hole 611 and a small light barrier hole 612 respectively), and two connecting holes 613; the light barrier 61 is vertically placed, one light barrier hole (large light barrier hole) 611 is parallel to the light penetrating component, and the light barrier is fixed on the focusing guide rail structure 4 by the connecting hole;
the light blocking hole 611 is recessed inwards along the surface of the light blocking plate 61 to form a through annular hole; the inner annular wall 611a and the outer annular wall 611b of the through annular hole together form a light blocking groove 611c;
the depth of the light blocking groove 611c is 2/3 of the thickness of the light blocking plate 61.
The inner wall of the light blocking groove 611c is a smooth curved surface; the connection part between the bottom of the light blocking groove and the inner annular wall 611a and the outer annular wall 611b is a curved surface.
The wall material of the light blocking groove 611c is black anodized aluminum.
Specifically, black anodized aluminum is used on the wall surface of the light blocking groove 611c, so that light energy falling into the light blocking groove can be absorbed, and damage to surrounding components is reduced.
The bottom surface of the bottom of the light blocking groove 611c is a straight surface; the shape of the light blocking hole is round.
The diameter of the hole of the light blocking hole 611 is smaller than or equal to the diameter of the mirror surface of the magnifying glass 1.
Example 2
As shown in fig. 1-3 and fig. 8-11, embodiment 2 provides a laser beam energy control structure of a laser marking device, which comprises a base of the marking device, wherein a marking platform for placing a marking object is arranged on the base, a housing is arranged on the base, and a supporting frame which is arranged on the base and is positioned in the housing, and a marking assembly is arranged on the supporting frame;
the marking assembly at least comprises a laser generator, a focusing device and a plurality of reflecting mirrors, wherein the reflecting mirrors are connected with a motor shaft, and laser emitted by the laser generator is reflected to a marking platform through the reflecting mirrors;
the focusing device comprises an optical path cavity, a circuit cavity and a scanning part; and a light penetrating component is arranged in the light path cavity along the direction close to the scanning part and is connected with the laser generator.
The light penetrating component comprises a magnifying glass 1, a light beam leveling glass 2 and a focusing glass 3 which are sequentially arranged; the magnifying glass is connected with the focusing guide rail structure 4.
Specifically, the focusing guide rail structure 4 is driven by the motor 5, and the distance between the magnifier 1 and the beam leveling mirror 2 is adjusted to realize focusing.
A light barrier 6 is arranged on one side of the light beam incident surface 11 of the magnifier 1, and the light barrier 6 comprises a light barrier 61 and a movable guide rail 62.
The light barrier 61 is in a sheet structure, and the light barrier 61 is provided with two light barrier holes 611 and 612 (the diameters of the two light barrier holes are not consistent) and two connecting holes 613; the light barrier 61 is vertically arranged, one light barrier hole 611 is parallel to the light penetrating component, and the lower end of the light barrier 61 is connected with the movable guide rail 62;
the bottom end of the light barrier 61 is also provided with a connecting base 614, and the connecting base 614 is connected with the movable guide rail 62;
the light blocking hole 611 is recessed inwards along the surface of the light blocking plate 61 to form a through annular hole; the inner annular wall 611a and the outer annular wall 611b of the through annular hole together form a light blocking groove 611c;
the depth of the light blocking groove 611c is 2/3 of the thickness of the light blocking plate 61.
The inner wall of the light blocking groove 611c is a smooth curved surface; the connection part between the bottom of the light blocking groove and the inner annular wall 611a and the outer annular wall 611b is a curved surface.
The wall material of the light blocking groove 611c is black anodized aluminum.
Specifically, black anodized aluminum is used on the wall surface of the light blocking groove 611c, so that light energy falling into the light blocking groove can be absorbed, and damage to surrounding components is reduced.
The bottom surface of the bottom of the light blocking groove 611c is a straight surface; the shape of the light blocking hole is round.
The moving rail 62 is a linear motor.
The diameter of the hole of the light blocking hole 611 is smaller than or equal to the diameter of the mirror surface of the magnifying glass 1.
Embodiment 2 differs from embodiment 1 in that the light barrier of embodiment 2 further comprises a moving rail.
Variations and modifications to the above would be obvious to persons skilled in the art to which the invention pertains from the foregoing description and teachings. Therefore, the invention is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the invention should be also included in the scope of the claims of the invention. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present invention in any way.
Claims (8)
1. The laser beam energy control structure of the laser marking equipment comprises a base of the marking equipment, wherein a marking platform for placing a marking object is arranged on the base, a housing is arranged on the base, a supporting frame is arranged on the base and positioned in the housing, and a marking assembly is arranged on the supporting frame;
the marking assembly at least comprises a laser generator, a focusing device and a plurality of reflecting mirrors, wherein the reflecting mirrors are connected with a motor shaft, and laser emitted by the laser generator is reflected to a marking platform through the reflecting mirrors;
the focusing device comprises an optical path cavity, a circuit cavity and a scanning part; the light path cavity is internally provided with a light penetrating component along the direction close to the scanning part and is connected with the laser generator;
the light penetrating component comprises a magnifying glass, a light beam leveling mirror and a focusing mirror which are sequentially arranged; the magnifying glass is connected with the focusing guide rail structure; the method is characterized in that:
a light barrier is arranged on one side of the light beam incident surface of the magnifier, and the light barrier at least comprises a light barrier;
the light barrier is of a sheet structure and is provided with a plurality of light blocking holes and connecting holes; the connecting holes are used for fixing the light barrier on the focusing guide rail structure;
the light blocking plate is vertically arranged, the light blocking holes of the light blocking plate are parallel to the light penetrating component, and the holes of the light blocking plate correspond to the light penetrating component;
the light blocking holes are recessed inwards along the surface of the light blocking plate to form transparent annular holes; the inner annular wall and the outer annular wall of the through annular hole jointly form a light blocking groove; the wall surface of the light blocking groove is made of black anodic aluminum oxide;
the bottom surface of the bottom of the light blocking groove is a straight surface or a concave curved surface.
2. The laser beam energy control structure according to claim 1, characterized in that: the light barrier further comprises a movable guide rail;
the bottom end of the light barrier is also provided with a connecting base, and the connecting base is connected with the movable guide rail.
3. The laser beam energy control structure according to claim 1, characterized in that: the inner wall of the light blocking groove is a smooth curved surface; the junction of the bottom of the light blocking groove, the inner annular wall and the outer annular wall is a curved surface.
4. The laser beam energy control structure according to claim 1, characterized in that: the depth of the light blocking groove is 1/2-2/3 of the thickness of the light blocking plate.
5. The laser beam energy control structure according to claim 1, characterized in that: the shape of the light blocking hole is round.
6. The laser beam energy control structure according to claim 1, characterized in that: the diameter of the hole of the light blocking hole is smaller than or equal to the diameter of the mirror surface of the magnifying glass.
7. The laser beam energy control structure according to claim 1, characterized in that: the diameters of the holes of the plurality of light blocking holes are different.
8. The laser beam energy control structure according to claim 2, characterized in that: the movable guide rail is a linear motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811070992.XA CN108890143B (en) | 2018-09-13 | 2018-09-13 | Laser beam energy control structure of laser marking equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811070992.XA CN108890143B (en) | 2018-09-13 | 2018-09-13 | Laser beam energy control structure of laser marking equipment |
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| Publication Number | Publication Date |
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| CN108890143A CN108890143A (en) | 2018-11-27 |
| CN108890143B true CN108890143B (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811070992.XA Active CN108890143B (en) | 2018-09-13 | 2018-09-13 | Laser beam energy control structure of laser marking equipment |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09248685A (en) * | 1996-03-13 | 1997-09-22 | Amada Co Ltd | Laser beam machining device |
| CN1174428A (en) * | 1996-08-21 | 1998-02-25 | 三菱电机株式会社 | Laser aid |
| JP2000227576A (en) * | 1999-02-08 | 2000-08-15 | Sumitomo Heavy Ind Ltd | Emission optical system for laser processing device |
| JP2001205462A (en) * | 2000-01-26 | 2001-07-31 | Nec Corp | Laser marking device and method of laser marking |
| JP2005103612A (en) * | 2003-09-30 | 2005-04-21 | Sunx Ltd | Laser marking apparatus |
| CN208758809U (en) * | 2018-09-13 | 2019-04-19 | 广州新可激光设备有限公司 | A kind of laser beam energy control structure of laser marking device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009289990A (en) * | 2008-05-29 | 2009-12-10 | Hamamatsu Photonics Kk | Laser light source |
-
2018
- 2018-09-13 CN CN201811070992.XA patent/CN108890143B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09248685A (en) * | 1996-03-13 | 1997-09-22 | Amada Co Ltd | Laser beam machining device |
| CN1174428A (en) * | 1996-08-21 | 1998-02-25 | 三菱电机株式会社 | Laser aid |
| JP2000227576A (en) * | 1999-02-08 | 2000-08-15 | Sumitomo Heavy Ind Ltd | Emission optical system for laser processing device |
| JP2001205462A (en) * | 2000-01-26 | 2001-07-31 | Nec Corp | Laser marking device and method of laser marking |
| JP2005103612A (en) * | 2003-09-30 | 2005-04-21 | Sunx Ltd | Laser marking apparatus |
| CN208758809U (en) * | 2018-09-13 | 2019-04-19 | 广州新可激光设备有限公司 | A kind of laser beam energy control structure of laser marking device |
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|---|---|
| CN108890143A (en) | 2018-11-27 |
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