CN203275743U - F-theta lens set for laser marking - Google Patents
F-theta lens set for laser marking Download PDFInfo
- Publication number
- CN203275743U CN203275743U CN201320135645.7U CN201320135645U CN203275743U CN 203275743 U CN203275743 U CN 203275743U CN 201320135645 U CN201320135645 U CN 201320135645U CN 203275743 U CN203275743 U CN 203275743U
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- Prior art keywords
- eyeglass
- lens
- laser marking
- concave
- theta
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Abstract
The utility model discloses an F-theta lens set for laser marking, which is characterized in that the lens set comprises a first lens, a second lens, a third lens, a fourth lens and a shell, wherein the first lens is a concave-convex lens with a function of light condensation, the second lens is a plane-concave lens with a function of light scattering, the third lens is a double convex lens with a function of light condensation, the fourth lens is a concave-convex lens with a function of light condensation, and the first lens, the second lens, the third lens and the fourth lens are sequentially arranged from top to bottom and fixedly connected through the shell. The F-theta lens for laser marking has the advantages that linear characteristics of laser beams can be well maintained, more than one light beams are used, the irradiated area of the laser beams is widened, and the processing time is shortened.
Description
Technical field
The utility model relates to lens set, especially a kind of laser marking F-Theta lens group.
Background technology
The laser marking that uses in prior art F-Theta lens group, common F-Theta lens group is because optics is received difference in full field angle, the shortcoming that light beam line is broadened, and because eyeglass incident area is little, can only use the mark that one laser beam carries out, its mark area is narrow, causes long processing time.
Summary of the invention
The utility model purpose is: provide a kind of simple in structure, keep the laser beam linear characteristic, working (finishing) area is large and can cross the laser marking that shortens process time F-Theta lens group.
The technical solution of the utility model is: a kind of laser marking F-Theta lens group, it is characterized in that, this lens set comprises the first eyeglass, the second eyeglass, the 3rd eyeglass, the 4th eyeglass and housing, described the first eyeglass is the concave-convex lens with optically focused effect, the second eyeglass is the plano-concave lens with astigmatism effect, the 3rd eyeglass is the biconvex lens with optically focused effect, and the 4th eyeglass is the concave-convex lens with optically focused effect, described the first eyeglass, the second eyeglass, the 3rd eyeglass and the 4th eyeglass from top to bottom are arranged in order and are fixedly connected with by described housing.
Preferably, be provided with the cover plate for the protection of lens set outside described the 4th eyeglass, described cover plate is connected with described housing.
Preferably, described the first eyeglass, the second eyeglass, the 3rd eyeglass, the 4th eyeglass and cover plate are the quartz glass eyeglass.
The utility model has the advantages that: can be good at keeping the laser beam linear characteristic, and use more than one light beam, widen the laser beam irradiation area, shorten process time.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model;
Wherein: 1 first eyeglass, 2 second eyeglasses, 3 the 3rd eyeglasses, 4 the 4th eyeglasses, 5 cover plates, 6 housings.
Embodiment
embodiment, with reference to shown in Figure 1, a kind of laser marking F-Theta lens group, this lens set comprises the first eyeglass 1, the second eyeglass 2, the 3rd eyeglass 3, the 4th eyeglass 4 and housing 6, the first eyeglass 1 is for having the concave-convex lens of optically focused effect, the second eyeglass 2 is for having the plano-concave lens of astigmatism effect, the 3rd eyeglass 3 is for having the biconvex lens of optically focused effect, the 4th eyeglass 4 is for having the concave-convex lens of optically focused effect, described the first eyeglass 1, the second eyeglass 2, the 3rd eyeglass 3 and the 4th eyeglass 4 are arranged in order from top to bottom and are fixedly connected with by housing 6, the 4th eyeglass 4 outsides are provided with the cover plate 5 for the protection of lens set, the first eyeglass 1, the second eyeglass 2, the 3rd eyeglass 3, the 4th eyeglass 4 and cover plate 5 are synthetic quartz glass eyeglass.
The effective focal length of the utility model lens set and back focal length are preferably respectively 254.03mm ± 0.20mm, 298.75mm ± 0.20mm, the first eyeglass 1 constitutes good by the material that the light to the 1064mm wavelength has 1.79480 refractive indexes, the second eyeglass 2 constitutes good by the material that the light to the 1064mm wavelength has 1.51946 refractive indexes, the material that the 3rd eyeglass 3 has 1.79480 refractive indexes by the light to the 1064mm wavelength constitutes good, and the 4th eyeglass 4 constitutes good by the material that the light to the 1064mm wavelength has 1.73676 refractive indexes; When each focal length of first to fourth eyeglass was made as f1～f4, each focal distance f 1～f4 should satisfy: 222.7850≤f1≤222.8913 ,-86.3509≤f2≤-86.3408,249.3273≤f3≤249.3632,184.6940≤f4≤184.6943.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All modifications of doing according to the Spirit Essence of the utility model main technical schemes are within all should being encompassed in protection domain of the present utility model.
Claims (3)
1. a laser marking is with F-Theta lens group, it is characterized in that, this lens set comprises the first eyeglass, the second eyeglass, the 3rd eyeglass, the 4th eyeglass and housing, described the first eyeglass is the concave-convex lens with optically focused effect, the second eyeglass is the plano-concave lens with astigmatism effect, the 3rd eyeglass is the biconvex lens with optically focused effect, and the 4th eyeglass is the concave-convex lens with optically focused effect, described the first eyeglass, the second eyeglass, the 3rd eyeglass and the 4th eyeglass from top to bottom are arranged in order and are fixedly connected with by described housing.
2. laser marking according to claim 1 with F-Theta lens group, is characterized in that, is provided with the cover plate for the protection of lens set outside described the 4th eyeglass, and described cover plate is connected with described housing.
3. laser marking according to claim 1 with F-Theta lens group, is characterized in that, described the first eyeglass, and the second eyeglass, the 3rd eyeglass, the 4th eyeglass and cover plate are the quartz glass eyeglass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320135645.7U CN203275743U (en) | 2013-03-22 | 2013-03-22 | F-theta lens set for laser marking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320135645.7U CN203275743U (en) | 2013-03-22 | 2013-03-22 | F-theta lens set for laser marking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203275743U true CN203275743U (en) | 2013-11-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320135645.7U Expired - Lifetime CN203275743U (en) | 2013-03-22 | 2013-03-22 | F-theta lens set for laser marking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203275743U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984078A (en) * | 2014-05-30 | 2014-08-13 | 深圳市大族激光科技股份有限公司 | F-theta optical lens for making laser spot and indicating light spot coincide with each other |
| WO2016029396A1 (en) * | 2014-08-28 | 2016-03-03 | 深圳市大族激光科技股份有限公司 | Optical lens |
| WO2016082171A1 (en) * | 2014-11-28 | 2016-06-02 | 大族激光科技产业集团股份有限公司 | F-θ PHOTOLITHOGRAPHIC LENSES |
| WO2016082172A1 (en) * | 2014-11-28 | 2016-06-02 | 大族激光科技产业集团股份有限公司 | Optical lenses for laser marking |
| CN107813050A (en) * | 2017-11-23 | 2018-03-20 | 中国科学院重庆绿色智能技术研究院 | A kind of multi-laser beam 3D printing head for metal melting rapid shaping |
| CN108174064A (en) * | 2017-12-19 | 2018-06-15 | 广东欧珀移动通信有限公司 | Lens assembly, camera and the electronic equipment of camera |
-
2013
- 2013-03-22 CN CN201320135645.7U patent/CN203275743U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103984078B (en) * | 2014-05-30 | 2016-07-27 | 大族激光科技产业集团股份有限公司 | The F-theta optical lens overlapped with instruction light hot spot for laser facula |
| CN103984078A (en) * | 2014-05-30 | 2014-08-13 | 深圳市大族激光科技股份有限公司 | F-theta optical lens for making laser spot and indicating light spot coincide with each other |
| WO2016029396A1 (en) * | 2014-08-28 | 2016-03-03 | 深圳市大族激光科技股份有限公司 | Optical lens |
| US9841585B2 (en) | 2014-08-28 | 2017-12-12 | Han's Laser Technology Industry Group Co., Ltd. | Optical lens |
| WO2016082172A1 (en) * | 2014-11-28 | 2016-06-02 | 大族激光科技产业集团股份有限公司 | Optical lenses for laser marking |
| CN106537216A (en) * | 2014-11-28 | 2017-03-22 | 大族激光科技产业集团股份有限公司 | Optical lenses for laser marking |
| WO2016082171A1 (en) * | 2014-11-28 | 2016-06-02 | 大族激光科技产业集团股份有限公司 | F-θ PHOTOLITHOGRAPHIC LENSES |
| US10162151B2 (en) | 2014-11-28 | 2018-12-25 | Han's Laser Technology Industry Group Co., Ltd. | F-theta photolithographic lenses |
| US10213870B2 (en) | 2014-11-28 | 2019-02-26 | Han's Laser Technology Industry Group Co., Ltd. | Optical lenses for laser marking |
| CN106537216B (en) * | 2014-11-28 | 2019-05-10 | 大族激光科技产业集团股份有限公司 | Laser scoring optical lens |
| CN107813050A (en) * | 2017-11-23 | 2018-03-20 | 中国科学院重庆绿色智能技术研究院 | A kind of multi-laser beam 3D printing head for metal melting rapid shaping |
| CN108174064A (en) * | 2017-12-19 | 2018-06-15 | 广东欧珀移动通信有限公司 | Lens assembly, camera and the electronic equipment of camera |
| CN108174064B (en) * | 2017-12-19 | 2020-02-04 | Oppo广东移动通信有限公司 | Lens assembly of camera, camera and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |