CN201126493Y - Dynamic focusing apparatus for laser light path system - Google Patents
Dynamic focusing apparatus for laser light path system Download PDFInfo
- Publication number
- CN201126493Y CN201126493Y CNU2007201917422U CN200720191742U CN201126493Y CN 201126493 Y CN201126493 Y CN 201126493Y CN U2007201917422 U CNU2007201917422 U CN U2007201917422U CN 200720191742 U CN200720191742 U CN 200720191742U CN 201126493 Y CN201126493 Y CN 201126493Y
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- China
- Prior art keywords
- lens
- dynamic focusing
- laser light
- light path
- linear motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Image Input (AREA)
Abstract
The utility model discloses a dynamic focusing device for a laser light path system, characterized in that a focusing system is composed of two lens, one lens with a crescent shape is mounted on a movable lens seat driven by a linear motor, and the other lens with a plano-convex shape is fixed, when a digital signal for controlling an imaging pattern is inputted in a controller of the linear motor, the linear motor is randomly moved, thereby driving the crescent-shaped lens to move so as to construct a dynamic focusing system. The dynamic focusing device solves the problem of fixed focus in the conventional lens, and obtains images with good definition and without distortion.
Description
Affiliated field
The utility model is applicable to that the light beam that laser instrument is sent needs the occasion that further focuses on, and especially being applicable to needs stochastic and dynamic to adjust the occasion of focal length to laser beam.
Background technology
The light beam that at present laser instrument is sent focuses on, and general focus lamp is fixed, so focal length all is changeless, for example, and the focusing system of laser marking machine, its focal length can not be adjusted variation at any time.Like this when imaging surface amasss greatly, when for example surpassing 400mm*400mm, because the central point of picture is compared with the edge, for laser instrument, distance is different, can cause thus the sharpness of central point and edge picture can be changed, and image can distortion.
Summary of the invention
In order to solve the problem that focal length can not dynamically be adjusted, the technical scheme that the utility model adopted is that focusing system is made up of two lens, wherein lens maintain static, another piece lens can move at random, focal length is changed, thereby solved sharpness and problem of dtmf distortion DTMF when imaging surface amasss greatly.
Description of drawings
Accompanying drawing is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail
When the data-signal that is controlled to picture pattern is input in the controller of linear electric motors, along with luminous point in the upper variation of putting of imaging pattern, thereby linear electric motors slide block 4 moves drive bearing 3 under linear electric motors 6 effects and lens 1 move, focal length is changed, solved become image definition to change and problem of dtmf distortion DTMF.
Claims (1)
1. dynamic focus device that is used for laser light path system, it is characterized in that: its focusing system is made up of two lens, wherein lens be installed in can movably lens mount by linear motor driving on, another piece maintains static.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201917422U CN201126493Y (en) | 2007-11-08 | 2007-11-08 | Dynamic focusing apparatus for laser light path system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201917422U CN201126493Y (en) | 2007-11-08 | 2007-11-08 | Dynamic focusing apparatus for laser light path system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201126493Y true CN201126493Y (en) | 2008-10-01 |
Family
ID=39999960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201917422U Expired - Fee Related CN201126493Y (en) | 2007-11-08 | 2007-11-08 | Dynamic focusing apparatus for laser light path system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201126493Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750728A (en) * | 2016-04-20 | 2016-07-13 | 华南理工大学 | Light spot changing optical scanning method and device for selective laser part processing |
| CN106218232A (en) * | 2016-08-31 | 2016-12-14 | 广州创乐激光设备有限公司 | A kind of varifocal laser marking optical system |
-
2007
- 2007-11-08 CN CNU2007201917422U patent/CN201126493Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750728A (en) * | 2016-04-20 | 2016-07-13 | 华南理工大学 | Light spot changing optical scanning method and device for selective laser part processing |
| CN106218232A (en) * | 2016-08-31 | 2016-12-14 | 广州创乐激光设备有限公司 | A kind of varifocal laser marking optical system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081001 Termination date: 20091208 |