CN207114861U - A kind of high power laser light processing camera lens of temperature-compensating - Google Patents
A kind of high power laser light processing camera lens of temperature-compensating Download PDFInfo
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- CN207114861U CN207114861U CN201721083746.9U CN201721083746U CN207114861U CN 207114861 U CN207114861 U CN 207114861U CN 201721083746 U CN201721083746 U CN 201721083746U CN 207114861 U CN207114861 U CN 207114861U
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Abstract
The utility model discloses a kind of high power laser light of temperature-compensating to process camera lens, including the first lens sequentially set along light path, second lens, 3rd lens, 4th lens and diaphragm, described the first lens and the 4th lens are negative lens, described the second lens and the 3rd lens are positive lens, first lens, second lens, 3rd lens, at least one in 4th lens is made up of negative thermo-optical coeffecient material, remaining is made up of positive thermo-optical coeffecient material, by using the lens of negative thermo-optical coeffecient material, the index of refraction in lens caused by lens temperature rise to caused by laser absorption is compensate for change, reduce thermal lensing effect, the Laser Processing efficiency and processing effect stablized.
Description
Technical field
It the utility model is related to laser technology field, the high power laser light processing camera lens of especially a kind of temperature-compensating.
Background technology
Laser Processing is widely used to automobile, electronics, electrical equipment, aviation, metallurgy, machine-building as advanced manufacturing technology
Etc. every field, raising product quality, labor productivity, automation, pollution-free, reduction material consumption etc. are played more and more heavy
The effect wanted.Laser processing lens are one of important components of laser process equipment, and its performance quality directly affects laser and add
The efficiency of work.The laser output power of laser process equipment before develop by higher and higher direction at present.Commercial lasers are defeated at present
The power gone out has reached 10kW level, it is assumed that each lens have 5/1000ths absorption, just there is 50W production under 10kW power
Heat amount, under continuous duty, absorption of the lens to laser in common laser processing lens has become unable to ignore
Disregard, the temperature of lens can be caused to rise, so as to cause variations in refractive index, the focal length and operating distance of whole camera lens are changed
Become, significantly impact Laser Processing efficiency and processing effect.
The content of the invention
For the situation of prior art, technical purpose of the present utility model is that providing a kind of reliably band temperature of implementing mends
The high power laser light processing camera lens repaid.
In order to realize above-mentioned technical purpose, the technical solution of the utility model is：
A kind of high power laser light processing camera lens of temperature-compensating, its first lens for including sequentially setting along light path, second
Lens, the 3rd lens, the 4th lens and diaphragm, the first described lens and the 4th lens are negative lens, and described second is saturating
Mirror and the 3rd lens are positive lens, and at least one in first lens, the second lens, the 3rd lens, the 4th lens is negative
Thermo-optical coeffecient material is made, and remaining is made up of positive thermo-optical coeffecient material.
Further, described negative thermo-optical coeffecient material is phosphoric acid salt glass.
Further, described positive thermo-optical coeffecient material is fused quartz.
Further, the first described lens and the negative lens that the 4th lens are curved month type.
Further, the second described lens and the positive lens that the 3rd lens are biconvex.
Further, plating is provided with phase on the first described lens, the second lens, the 3rd lens, the 4th lens and diaphragm
Answer the anti-reflection film of operation wavelength.
Using above-mentioned technical scheme, the beneficial effects of the utility model are：By using the saturating of negative thermo-optical coeffecient material
Mirror, it compensate for the index of refraction in lens caused by lens temperature rise to caused by laser absorption and change, reduce thermal lensing effect,
The Laser Processing efficiency and processing effect stablized.
Brief description of the drawings
The utility model is further elaborated with reference to the accompanying drawings and detailed description：
Fig. 1 is the structural representation of the high power laser light processing camera lens of the utility model temperature-compensating；
Fig. 2 is operating distance schematic diagram of the utility model at 25 DEG C；
Fig. 3 is the operating distance schematic diagram at 200 DEG C when the utility model is in not temperature compensated；
Fig. 4 is that the utility model is in the operating distance schematic diagram at 200 DEG C when having temperature-compensating.
Embodiment
As shown in figure 1, the high power laser light processing camera lens of the utility model temperature-compensating includes what is sequentially set along light path
First lens 101, the second lens 102, the 3rd lens 103, the 4th lens 104 and diaphragm 105, the first described lens 101
It is negative lens with the 4th lens 104, the second described lens 102 and the 3rd lens 103 are positive lens, first lens 101,
At least one in second lens 102, the 3rd lens 103, the 4th lens 104 is made up of negative thermo-optical coeffecient material, and remaining is just
Thermo-optical coeffecient material is made.
Wherein, described negative thermo-optical coeffecient material is phosphoric acid salt glass, and described positive thermo-optical coeffecient material is fused quartz.
In addition, the first described lens 101 and the negative lens that the 4th lens 104 are curved month type, the second described lens 102
With the positive lens that the 3rd lens 103 are biconvex.
Also, described the first lens 101, the second lens 102, the 3rd lens 103, the 4th lens 104 and diaphragm 105
On plating provided with relevant work wavelength anti-reflection film.
As one of which embodiment of the present utility model, the first lens 101 and second described in the present embodiment are saturating
Mirror 102 is made up of the fused quartz of positive thermo-optical coeffecient, its dn/dt<=10e-6/ DEG C；The 3rd described lens 103 and the 4th lens
104 are made by bearing the phosphoric acid salt glass of thermo-optical coeffecient, its dn/dt<-8e-6/℃.
Fig. 2 shows operating distance parameter of the high power laser light processing camera lens of the present embodiment temperature-compensating at 25 DEG C,
And its design parameter is as shown in the table：
Operating distance parameter and design parameter of the present embodiment laser processing lens of table 1 at 25 DEG C
Wherein, the structure of the first lens 201, the second lens 202, the 3rd lens 203, the 4th lens 204 and diaphragm 205
It is same as shown in Figure 1.
As shown in figure 3, work when being in not temperature compensated it illustrates the processing of the present embodiment high power laser light at 200 DEG C
Make distance, and its design parameter is as shown in the table：
Operating distance parameter and design when the present embodiment laser processing lens of table 2 are in not temperature compensated at 200 DEG C
Parameter
Wherein, the structure of the first lens 301, the second lens 302, the 3rd lens 303, the 4th lens 304 and diaphragm 305
It is same as shown in Figure 1.
As shown in figure 4, being in it illustrates the high power laser light of the present embodiment temperature-compensating processing camera lens has temperature-compensating
When operating distance at 200 DEG C, and its design parameter is as shown in the table：
The present embodiment laser processing lens of table 3 are in the operating distance parameter and design at 200 DEG C when having temperature-compensating
Parameter
Wherein, the structure of the first lens 401, the second lens 402, the 3rd lens 403, the 4th lens 404 and diaphragm 405
It is same as shown in Figure 1.
After table 1 and table 3 can be seen that the lens for having used negative thermo-optical coeffecient, after lens temperature raises, can effectively it mend
Repay operating distance change caused by temperature rise.
Specific embodiment of the present utility model is the foregoing described, it will be appreciated by those of skill in the art that this is only
Be for example, those skilled in the art is on the premise of without departing substantially from principle of the present utility model and essence, can be to this reality
The mode of applying makes various changes or modifications, but these changes and modification each fall within the scope of protection of the utility model.
Claims (6)
- A kind of 1. high power laser light processing camera lens of temperature-compensating, it is characterised in that：It includes first sequentially set along light path Lens, the second lens, the 3rd lens, the 4th lens and diaphragm, the first described lens and the 4th lens are negative lens, described The second lens and the 3rd lens be positive lens, in first lens, the second lens, the 3rd lens, the 4th lens at least One is made up of negative thermo-optical coeffecient material, and remaining is made up of positive thermo-optical coeffecient material.
- A kind of 2. high power laser light processing camera lens of temperature-compensating according to claim 1, it is characterised in that：Described is negative Thermo-optical coeffecient material is phosphoric acid salt glass.
- A kind of 3. high power laser light processing camera lens of temperature-compensating according to claim 1, it is characterised in that：It is described just Thermo-optical coeffecient material is fused quartz.
- A kind of 4. high power laser light processing camera lens of temperature-compensating according to claim 1, it is characterised in that：Described One lens and the negative lens that the 4th lens are curved month type.
- A kind of 5. high power laser light processing camera lens of temperature-compensating according to claim 1, it is characterised in that：Described Two lens and the positive lens that the 3rd lens are biconvex.
- A kind of 6. high power laser light processing camera lens of temperature-compensating according to claim 1, it is characterised in that：Described Plating is provided with the anti-reflection film of relevant work wavelength on one lens, the second lens, the 3rd lens, the 4th lens and diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721083746.9U CN207114861U (en) | 2017-08-28 | 2017-08-28 | A kind of high power laser light processing camera lens of temperature-compensating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721083746.9U CN207114861U (en) | 2017-08-28 | 2017-08-28 | A kind of high power laser light processing camera lens of temperature-compensating |
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| Publication Number | Publication Date |
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| CN207114861U true CN207114861U (en) | 2018-03-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210268741A1 (en) * | 2018-06-27 | 2021-09-02 | Csir | Thermo optical control of focus position of an energy beam in an additive manufacturing apparatus |
-
2017
- 2017-08-28 CN CN201721083746.9U patent/CN207114861U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210268741A1 (en) * | 2018-06-27 | 2021-09-02 | Csir | Thermo optical control of focus position of an energy beam in an additive manufacturing apparatus |
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| CP03 | Change of name, title or address |
Address after: 350100 floor 5, building 19, phase II, innovation park, No. 7, middle wulongjiang Avenue, Shangjie Town, Minhou County, Fuzhou City, Fujian Province Patentee after: Fujian Haichuang Photoelectric Technology Co.,Ltd. Address before: 350005 room 505, 5 / F, zone B, Chuangye building, Haixi high tech Industrial Park, high tech Zone, Fuzhou, Fujian Patentee before: FUJIAN HAICHUANG PHOTOELECTRIC CO.,LTD. |