CN206460224U - A kind of continuous multiplying power beam-expanding system of infrared laser suitable for 1064nm wavelength - Google Patents
A kind of continuous multiplying power beam-expanding system of infrared laser suitable for 1064nm wavelength Download PDFInfo
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- CN206460224U CN206460224U CN201720167900.4U CN201720167900U CN206460224U CN 206460224 U CN206460224 U CN 206460224U CN 201720167900 U CN201720167900 U CN 201720167900U CN 206460224 U CN206460224 U CN 206460224U
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Abstract
The utility model is related to a kind of continuous multiplying power beam-expanding system of the infrared laser suitable for 1064nm wavelength, the first lens, the second lens and the 3rd lens including the transmission direction along incident ray successively coaxial setting, first lens, the second lens and the 3rd lens are fused quartz lens, first lens and the 3rd lens are concave-convex type positive lens, second lens are double concave type negative lens, first lens include first surface and the second curved surface, second lens include the 3rd curved surface and the 4th curved surface, and the 3rd lens include the 5th curved surface and the 6th curved surface；First surface, the second curved surface, the 3rd curved surface, the 4th curved surface, transmission direction of the 5th curved surface to the 6th curved surface along incident ray are arranged successively；When using, the infrared laser that light source is launched passes through the first lens, the second lens and the 3rd lens successively, second lens, the 3rd lens can be moved coaxially, to adjust the spacing between spacing, the 3rd lens and the second lens between the second lens and the first lens, realize that the continuous multiplying power of infrared laser is expanded.
Description
Technical field
The utility model is related to technical field of laser processing, and particularly a kind of infrared laser suitable for 1064nm wavelength connects
Continuous multiplying power beam-expanding system.
Background technology
Gas molecule and suspended particles in air are the dominant absorbers of light, and gas molecule is mainly vapor, dioxy
Change the absorption of carbon and ozone molecule, the absorption of other molecules can be ignored in the application of most laser.Visible light wave range swashs
Light and the Gaseous attenuation of 1.06um, 1.54um, 1.57um wavelength light are minimum.And ytterbium ion level structure itself simply will not
There is the common concentration quenching under high doping of Er-doped fiber, so the restriction of 1.06um optical fiber lasers power is smaller.1.06um optical fiber swashs
Light device relies on its low Threshold pumped power, high conversion efficiency, compact conformation, good heat dissipation, compact conformation, as present laser field
Study hotspot.By its above feature, the wave band of laser is widely used in the necks such as laser radar, laser ranging, 3D scannings
Domain.
With the rapid development of the national economy, the demand to laser cutting machine increasingly increases.In laser cutting machine demand
While increase, the requirement to laser processing quality is also improved constantly.The principal element for influenceing laser processing quality is laser beam
Focal beam spot quality and heat deformation caused by focal spot position drift, it decides the machining accuracy of workpiece to be processed.Swashing
Light manufacture field, light extraction diameter of phi all very littles of laser beam（About 1mm）If directly focusing on so thin light beam, its Rayleigh disk
Will be very big.Therefore, for Laser Processing optical system typically will adapted beam expanding lens, the light pencil for coming from laser is entered
Row is expanded, and is then focused again for Laser Processing focus lamp.Chinese patent Authorization Notice No. CN103576316B discloses one
Kind of infrared laser zoom beam-expanding system and laser process equipment, including along incident ray transmission direction successively coaxial setting the
One lens, the second lens and the 3rd lens；First lens and the 3rd lens are planoconvex positive lens, second lens
For convex-concave negative lens；And define the parameters such as specific radius of curvature.Above-mentioned beam-expanding system cuts field in high energy laser
In use, temperature drift is larger easily to influence cutting accuracy.
Utility model content
The technical problems to be solved in the utility model, which is to provide, a kind of simple in construction, easy to operate is applied to 1064nm ripples
The continuous multiplying power beam-expanding system of long infrared laser.
In order to solve the above technical problems, the continuous multiplying power of infrared laser suitable for 1064nm wavelength that the utility model is provided
Beam-expanding system, including：Along transmission direction the first lens of coaxial setting, the second lens and the 3rd lens successively of incident ray,
First lens, the second lens and the 3rd lens be fused quartz lens, first lens and the 3rd lens be concave-convex type just
Lens, second lens are double concave type negative lens, and first lens include first surface and the second curved surface, described second
Lens include the 3rd curved surface and the 4th curved surface, and the 3rd lens include the 5th curved surface and the 6th curved surface；The first surface,
Two curved surfaces, the 3rd curved surface, the 4th curved surface, transmission direction of the 5th curved surface to the 6th curved surface along incident ray are arranged successively；Use
When, the infrared laser that light source is launched successively pass through first lens, the second lens and the 3rd lens, second lens,
3rd lens can be moved coaxially, to adjust between the spacing between the second lens and the first lens, the 3rd lens and the second lens
Spacing, realize that the continuous multiplying power of infrared laser is expanded；Optically focused is carried out using the lens of fused quartz material to expand, effectively reduction temperature
Drift；Second lens use double-concave negative lens, and the light beam that the first lens are passed out is expanded.
Further, the radius of curvature of the first surface is -11.6mm, and the radius of curvature of second curved surface is 9.3mm,
The radius of curvature of 3rd curved surface is 9.3mm, and the radius of curvature of the 4th curved surface is -12.7mm, the radius of curvature of the 5th curved surface for -
101.621mm, the radius of curvature of the 6th curved surface is 26.5mm.
Further, the center thickness of the described first to the 3rd lens is followed successively by：3 mm, 4mm, 7.5mm；Described first to
The external diameter of three lens is followed successively by：10mm, 10mm, 22mm.
Further, the spacing of second curved surface and the 3rd curved surface on optical axis is 25.2mm；4th curved surface and
Spacing of five curved surfaces on optical axis is 55.2mm.
The technique effect of utility model：（1）Infrared laser continuous multiplying power of the present utility model suitable for 1064nm wavelength
Beam-expanding system, relative to prior art, is combined using concavo-convex positive lens and double-concave negative lens, passes through second, third lens
It is mobile, realize that the continuous multiplying power of 1 to 4 times of infrared optical fiber laser is expanded；（2）Using fused quartz eyeglass, for high-power optical fiber
The temperature drift of influence cutting application is not produced when laser is used；（3）By the part spacing of lengthening, the sensitiveness of distance is reduced,
Cause adjust multiplying power during more precisely, operational stability is strong.
Brief description of the drawings
The utility model is described in further detail with reference to Figure of description：
Fig. 1 is the structural representation of the continuous multiplying power beam-expanding system of the infrared laser suitable for 1064nm wavelength of the present utility model
Figure.
Embodiment
Embodiment 1 is as shown in figure 1, the continuous multiplying power of infrared laser suitable for 1064nm wavelength of the present embodiment expands and is
System includes the first lens L1, the second lens L2 and the 3rd lens L3 along the coaxial setting of transmission direction of incident ray.First is saturating
Mirror L1 is concave-convex type positive lens, and the second lens L2 is double concave type negative lens, and the 3rd lens L3 is concave-convex type positive lens.First lens
L1, the second lens L2 and the 3rd lens L3 are fused quartz lens；Wherein, the first lens L1 includes the transmission along incident ray
The first surface S1 and the second curved surface S2, i.e. first surface S1 of direction arrangement and the second curved surface S2 are respectively as light entrance face and light
Exit facet.Likewise, the second lens L2 include the 3rd curved surface S3 and the 4th curved surface S4, the 3rd lens L3 include the 5th curved surface S5 and
6th curved surface S6.Direction transmission of the incident ray along first surface S1 to the 6th curved surface S6, after whole beam-expanding system
To expand amplification.Wherein, the first lens L1 first surface S1 is interior concave spherical surface, and radius of curvature is -11.6mm, the second curved surface S2
For outer convex spherical, radius of curvature is 9.3mm；First lens L1 center thickness（That is thickness of the first lens L1 on optical axis）For
3mm, external diameter is 10mm；First lens L1 refractive index and the ratio of Abbe number are 0.021.Second lens L2 the 3rd curved surface S3
For interior concave spherical surface, radius of curvature is -9.3mm, and the 4th curved surface S4 is interior concave spherical surface, and radius of curvature is -12.7mm；Second lens L2
Center thickness be 4mm, external diameter is 10mm；Second lens L2 refractive index and the ratio of Abbe number are 0.021.3rd lens L3
The 5th curved surface S5 be interior concave spherical surface, radius of curvature is -101.621mm, and the 6th curved surface S6 is outer convex spherical, and radius of curvature is
26.5mm；3rd lens L3 center thickness is 7.5mm, and external diameter is 22mm；3rd lens L3 refractive index and the ratio of Abbe number
Example is 0.021.
Obviously, above-described embodiment is only intended to clearly illustrate the utility model example, and is not to this reality
With the restriction of new embodiment.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no necessity and possibility to exhaust all the enbodiments.And these
Belong to obvious changes or variations that spirit of the present utility model amplifies out still in protection domain of the present utility model
Among.
Claims (4)
1. a kind of continuous multiplying power beam-expanding system of infrared laser suitable for 1064nm wavelength, it is characterised in that including：Along incident light
The transmission direction of line the first lens of coaxial setting, the second lens and the 3rd lens successively, first lens, the second lens and
3rd lens are fused quartz lens, and first lens and the 3rd lens are concave-convex type positive lens, and second lens are concave-concave
Type negative lens, first lens include first surface and the second curved surface, and second lens include the 3rd curved surface and the 4th song
Face, the 3rd lens include the 5th curved surface and the 6th curved surface；The first surface, the second curved surface, the 3rd curved surface, the 4th song
The transmission direction of face, the 5th curved surface to the 6th curved surface along incident ray is arranged successively；In use, the infrared laser that light source is launched
First lens, the second lens and the 3rd lens are passed through successively, second lens, the 3rd lens can be moved coaxially, to adjust
Save the spacing between spacing, the 3rd lens and the second lens between the second lens and the first lens.
2. the continuous multiplying power beam-expanding system of the infrared laser according to claim 1 suitable for 1064nm wavelength, its feature exists
In the radius of curvature of the first surface is -11.6mm, and the radius of curvature of second curved surface is 9.3mm, the song of the 3rd curved surface
Rate radius is 9.3mm, and the radius of curvature of the 4th curved surface is -12.7mm, and the radius of curvature of the 5th curved surface is -101.621mm, the 6th
The radius of curvature of curved surface is 26.5mm.
3. the continuous multiplying power beam-expanding system of the infrared laser according to claim 2 suitable for 1064nm wavelength, its feature exists
In the center thickness of the described first to the 3rd lens is followed successively by：3 mm, 4mm, 7.5mm；The external diameter of described first to the 3rd lens
It is followed successively by：10mm, 10mm, 22mm.
4. the continuous multiplying power beam-expanding system of the infrared laser according to claim 3 suitable for 1064nm wavelength, its feature exists
In the spacing of second curved surface and the 3rd curved surface on optical axis is 25.2mm；4th curved surface and the 5th curved surface are in optical axis
On spacing be 55.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720167900.4U CN206460224U (en) | 2017-02-23 | 2017-02-23 | A kind of continuous multiplying power beam-expanding system of infrared laser suitable for 1064nm wavelength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720167900.4U CN206460224U (en) | 2017-02-23 | 2017-02-23 | A kind of continuous multiplying power beam-expanding system of infrared laser suitable for 1064nm wavelength |
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| Publication Number | Publication Date |
|---|---|
| CN206460224U true CN206460224U (en) | 2017-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720167900.4U Active CN206460224U (en) | 2017-02-23 | 2017-02-23 | A kind of continuous multiplying power beam-expanding system of infrared laser suitable for 1064nm wavelength |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508614A (en) * | 2017-02-23 | 2018-09-07 | 常州巴斯光年激光科技有限公司 | A kind of continuous multiplying power beam-expanding system of infrared laser suitable for 1064nm wavelength |
-
2017
- 2017-02-23 CN CN201720167900.4U patent/CN206460224U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108508614A (en) * | 2017-02-23 | 2018-09-07 | 常州巴斯光年激光科技有限公司 | A kind of continuous multiplying power beam-expanding system of infrared laser suitable for 1064nm wavelength |
| CN108508614B (en) * | 2017-02-23 | 2024-05-03 | 常州巴斯光年激光科技有限公司 | Infrared laser continuous multiplying power beam expanding system suitable for 1064nm wavelength |
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