CN1318766A - Two-dimensional laser beam director - Google Patents
Two-dimensional laser beam director Download PDFInfo
- Publication number
- CN1318766A CN1318766A CN 01129221 CN01129221A CN1318766A CN 1318766 A CN1318766 A CN 1318766A CN 01129221 CN01129221 CN 01129221 CN 01129221 A CN01129221 A CN 01129221A CN 1318766 A CN1318766 A CN 1318766A
- Authority
- CN
- China
- Prior art keywords
- movable member
- sliding axle
- magnet
- coil
- laser beam
- 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.)
- Pending
Links
Images
Landscapes
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The present invention relates to the field of 2D driving technology and includes reflector moving part, winding, sliding shaft, magnet path and reflector. The reflector moving part with magnet matter and the sliding shaft in the center of the device and with spherical structure on its top form a radial symmetrical structure and are matched by a sleeve structure, so that the moving part can move obliquely around two axes. The device of the present invention can control and change the direction of laser beam, realize 2D oblique motion, and has the advantages of simple structure, low cost and high accuracy.
Description
The invention belongs to two-dimentional technical field of driving.
Drive object of which movement on two-dimensional direction, traditional method is stepper motor to be set, the motion of each Electric Machine Control object one dimension on both direction respectively.But when requiring the very little and degree of accuracy of object rotational angle higher, for example driving catoptron rotates when changing the laser propagation direction, stepper motor not only makes the system architecture complexity, and owing to there is the process and assemble accuracy limitations of driving error and each parts, is difficult to reach requirement.
Disclose a kind of torquer structure with two-dimentional servo function in the patent No. is the invention of CN1181580A, this structure is utilized maglev principle, makes movable member be suspended in the magnetic field and can realize along sliding axle up and down and the two-dimensional motion of rotating around sliding axle.But this invention structure can not realize the banking motion of two dimension.
The objective of the invention is to for overcoming the weak point of prior art, a kind of two-dimensional laser beam-pointing drive unit is provided, effect with control and change laser beam direction of propagation, can realize the banking motion of two dimension, and it is simple in structure, part count is few, and cost is low, is easy to realize the advantage of High Accuracy Control.
The present invention proposes a kind of two-dimensional laser beam-pointing device, and it comprises: the movable member that reflecting optics is installed that is used to change the laser beam direction; Be installed in the coil on this movable member, be used to drive this movable member two mutually perpendicular direction motions; Be installed in a vertical sliding axle of center under this movable member, be used for supporting and guiding described movable member; A magnetic circuit is used to produce the magnetic flux that is added to described coil; A catoptron is installed on the described movable member, is used to change the direction of laser beam; It is characterized in that, in the described movable member magnetisable material is set, it becomes the symmetrical structure of radial direction with the described sliding axle that is positioned at the device center, and the top of described sliding axle is a spherical structure; The part that described movable member matches with described sliding axle is a tube-in-tube structure, makes movable member carry out banking motion around two mutually perpendicular axis, and described movable member is suspended in the top of described sphere, and in the edge contact of sphere.
Described eyeglass can be positioned at the center of described movable member.
Described coil can described sliding axle be the coaxial installation equably of angular separation of 90 degree.
Described coil can be divided into two groups, and two coils of every group are around the angular separation setting of described sliding axle with 180 degree.
Described magnetisable material can be cross shape.
Described magnetic circuit can comprise one group of magnet, is used to produce the magnetic field force of driving action; Outer yoke, described magnet are fixed on this yoke; Inner yoke, described magnet by magnetic gap and this inner yoke over against, the height of described inner yoke is less than the height of described magnet.
Structure of the present invention and principle of work are described as follows as shown in Figure 1, 2:
In Fig. 1, movable member 103 is owing in the effect suspension magnetic of magnetic piece 107, and by sliding axle 106 radial locations, catoptron 108 places the centre of movable member 103; When two in the coil 104 (one group) coils are passed to the opposite electric current of equal and opposite in direction, direction, the top of coil 104 is subjected to the effect of magnetic field force, but magnetic field force opposite sign but equal magnitude, produce the moment of couple and drive 108 deflections of movable member 103 drive catoptrons, the laser beam that laser instrument 109 sends incident at a certain angle, mirror deflection α angle, the laser beam direction of propagation changes the β angle, and β=2 α are then arranged.
Characteristics of the present invention:
Magnetisable material of the present invention is placed on radially perpendicular in the plane that constitutes the magnetic gap plane, leakage flux by magnetic circuit outside magnetic gap forms magnet spring, realize the space orientation of described movable member, reduce the kinetic damping of system, improved the dirigibility and the may command performance of movable member motion greatly;
Place the driving of the hot-wire coil realization movable member in magnetic field; The deflection angle of catoptron and electrical current size are linear, are easy to realize High Accuracy Control.In addition, part count is few, can reduce cost.
Brief Description Of Drawings:
Fig. 1 is structure of the present invention and principle of work synoptic diagram;
Fig. 2 is an embodiments of the invention structural plan synoptic diagram;
Fig. 3 is the cut-open view along Fig. 2 A-A line.
A kind of two-dimensional laser beam director embodiment that the present invention proposes is described in detail as follows in conjunction with each accompanying drawing.
The structure of present embodiment is shown in Fig. 2,3, and Fig. 3 is the cut-open view of Fig. 2 along the A-A line, wherein:
Catoptron 208 is positioned at the center of plate-like movable member 203, and movable member 203 is supported and guiding by coaxial ball head 206, and ball head 206 is fixed on the bottom centre position of outer yoke 201.In the outer peripheral edges of movable member 203 four drive coils 204 of symmetrical distribution are installed, coil 204 is divided into and is two symmetrical groups, is made up of two relative coils for every group, rotates around a direction in order to drive movable member.A magnetic circuit comprises that with ball head 206 be the semicylindrical inner yoke 205 that the center radially distributes, bowl-shape outer yoke 201 and be combined in equally distributed four block magnet 202 on outer yoke 201 inwalls; Four drive coils 204 place between inner yoke 205 and the magnet 202 and are relative with described four blocks of magnet respectively; This magnetic circuit is used to produce certain magnetic flux, and vertically passes through described drive coil 204, and described outer yoke 201 plays the every other parts of carrying simultaneously.Provide electric current to drive coil 204 by the supply unit (not shown).
When not having electric current to feed in the coil 204, be fixed on the magnetisable material 207 on the movable member 203, the effect owing to magnetic field force in the magnetic circuit that is subjected to four magnet 202 and outer yoke 201 and inner yoke 205 formation together hovers in the magnetic field with movable member.
The tube-in-tube structure of movable member 203 bottoms contacts with the circumferential section of sliding axle 206 top spheries; The part that movable member 203 contacts with sliding axle 206 is designed to the circular sleeve structure, movable member 203 can be rotated around the spherical top of sliding axle 206, and such tube-in-tube structure can make axially in magnetic field automatic the adjust position of movable member 203 at the drive lower edge of magnetisable material 207 sliding axle 206.
When carrying out beam-pointing driving operation, since electric current just or anti-direction flow into one group of relative (two) coil 204, make electromagnetic force rotate force couple role on the coil of movable member, coil, so the luminous point of light beam can be according to required orbital motion.
In Fig. 2, a catoptron 208 is arranged, in the movable member 203 by the spherical top guiding movable member 203 of described sliding axle; Coil 204 is installed around the outside of movable member 203, the angular separation that the excircle of movable member 203 is partly gone up with 90 ° distributes coaxially, in height near the centre of magnet 202, bottom is near the lower limb of magnet 202 in the top of coil 204, and each coil is all relative with magnet 202.
Among Fig. 3, can find out clearly that the movable member 203 and the position of sliding axle 206 concern.Sliding axle 206 is that a cylindrical shaft top is for spherical, because the existence of magnetisable material 207, movable member 203 is positioned in the magnetic field at axial self-suspending, sliding axle 206 has limited the radial translation of two spatial degrees of freedom of movable member 203, to rotational freedom then without limits, therefore can under the driving of coil 204, realize yaw motion.In addition, because the centre of sphere around sliding axle 206 is a rotation center during movable member 203 rotations, rather than be rotation center with the center of catoptron 208, so movable member 203 is designed to thin plate-like, make the center of the centre of sphere near catoptron 208.
Claims (6)
1, a kind of two-dimensional laser beam-pointing device, it comprises: the movable member that reflecting optics is installed that is used to change the laser beam direction; Be installed in the coil on this movable member, be used to drive this movable member two mutually perpendicular direction motions; Be installed in a vertical sliding axle of center under this movable member, be used for supporting and guiding described movable member; A magnetic circuit is used to produce the magnetic flux that is added to described coil; A catoptron is installed on the described movable member, is used to change the direction of laser beam;
It is characterized in that, in the described movable member magnetisable material is set, it becomes the symmetrical structure of radial direction with the described sliding axle that is positioned at the device center, and the top of described sliding axle is a spherical structure; The part that described movable member matches with described sliding axle is a tube-in-tube structure, makes movable member carry out banking motion around two mutually perpendicular axis, and described movable member is suspended in the top of described sphere, and in the edge contact of sphere.
According to the beam-pointing device of claim 1, it is characterized in that 2, described eyeglass is positioned at the center of described movable member.
According to the beam-pointing device of claim 1, it is characterized in that 3, described coil is the coaxial installation equably of angular separation of 90 degree with described sliding axle.
According to the beam-pointing device of claim 3, it is characterized in that 4, described coil is divided into two groups, two coils of every group are around the angular separation setting of described sliding axle with 180 degree.
5,, it is characterized in that described magnetisable material is a cross shape according to the beam-pointing drive unit of claim 1.
According to the beam-pointing device of claim 1, it is characterized in that 6, described magnetic circuit comprises one group of magnet, be used to produce the magnetic field force of driving action; Outer yoke, described magnet are fixed on this yoke; Inner yoke, described magnet by magnetic gap and this inner yoke over against, the height of described inner yoke is less than the height of described magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01129221 CN1318766A (en) | 2001-06-15 | 2001-06-15 | Two-dimensional laser beam director |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01129221 CN1318766A (en) | 2001-06-15 | 2001-06-15 | Two-dimensional laser beam director |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1318766A true CN1318766A (en) | 2001-10-24 |
Family
ID=4669013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01129221 Pending CN1318766A (en) | 2001-06-15 | 2001-06-15 | Two-dimensional laser beam director |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1318766A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412403A (en) * | 2013-07-18 | 2013-11-27 | 清华大学 | Laser beam modulating system |
| CN106405991A (en) * | 2016-11-29 | 2017-02-15 | 深圳市世尊科技有限公司 | Periscopic camera shooting module and reflector apparatus used for the periscopic camera shooting module |
| CN106774443A (en) * | 2016-08-31 | 2017-05-31 | 北京空间机电研究所 | A kind of spaceborne novel high-precision high stability two-dimensional pointing mechanism |
| CN108614353A (en) * | 2018-05-10 | 2018-10-02 | 西安交通大学 | Two-dimensional deflection decoupling mechanism and its deflection method based on ion-exchange polymer metal material |
| CN109975898A (en) * | 2017-12-27 | 2019-07-05 | 华为技术有限公司 | A kind of control method of lens module and lens module |
| CN110380678A (en) * | 2018-04-12 | 2019-10-25 | 深圳市智康新能科技有限公司 | Solar power generation mirror angle regulating device and mirror assembly |
| CN110596674A (en) * | 2019-08-16 | 2019-12-20 | 上海禾赛光电科技有限公司 | Swing mirror, driving method thereof and laser radar |
-
2001
- 2001-06-15 CN CN 01129221 patent/CN1318766A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412403A (en) * | 2013-07-18 | 2013-11-27 | 清华大学 | Laser beam modulating system |
| CN103412403B (en) * | 2013-07-18 | 2015-12-23 | 清华大学 | Laser beam modulating system |
| CN106774443A (en) * | 2016-08-31 | 2017-05-31 | 北京空间机电研究所 | A kind of spaceborne novel high-precision high stability two-dimensional pointing mechanism |
| CN106405991A (en) * | 2016-11-29 | 2017-02-15 | 深圳市世尊科技有限公司 | Periscopic camera shooting module and reflector apparatus used for the periscopic camera shooting module |
| CN109975898A (en) * | 2017-12-27 | 2019-07-05 | 华为技术有限公司 | A kind of control method of lens module and lens module |
| US11340421B2 (en) | 2017-12-27 | 2022-05-24 | Huawei Technologies Co., Ltd. | Lens module and lens module control method |
| CN110380678A (en) * | 2018-04-12 | 2019-10-25 | 深圳市智康新能科技有限公司 | Solar power generation mirror angle regulating device and mirror assembly |
| CN110380678B (en) * | 2018-04-12 | 2021-09-24 | 龙岩智康太阳能科技有限公司 | Reflector angle adjusting device for solar power generation and reflector assembly |
| CN108614353A (en) * | 2018-05-10 | 2018-10-02 | 西安交通大学 | Two-dimensional deflection decoupling mechanism and its deflection method based on ion-exchange polymer metal material |
| CN110596674A (en) * | 2019-08-16 | 2019-12-20 | 上海禾赛光电科技有限公司 | Swing mirror, driving method thereof and laser radar |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1232860C (en) | Use of bending support for linear motor driving mechanism of optical machinery | |
| CN110262036B (en) | Two-dimensional large-angle quick deflection reflector | |
| US7712982B2 (en) | Actuator | |
| US20030026547A1 (en) | Actuator mechanism for precision alignment of optical components | |
| JP2002328191A (en) | Stage device with built-in linear motor | |
| CN102213813B (en) | The guidance system of optical element | |
| CN1318766A (en) | Two-dimensional laser beam director | |
| CN101092233A (en) | Mems device | |
| KR900004619B1 (en) | Operating apparatus of objective lens | |
| CN107186338A (en) | Laser cutting head and dimension laser cutting device | |
| GB2358524A (en) | Two-axis pointing motor | |
| EP0407215B1 (en) | Optical recording and reproducing apparatus | |
| JPH09190636A (en) | Optical pickup and its supporting method | |
| US4902996A (en) | Movable coil driving unit | |
| JP2004524575A (en) | Surface orientation method and apparatus | |
| CN1138262C (en) | Four-dimensional objective driver | |
| US5768034A (en) | Lens tilt error reduction actuator | |
| CN202151865U (en) | Orthogonal winding inductive magnetic suspension spherical active joint | |
| CN213497206U (en) | 5DOF optical path control magnetic suspension driver | |
| CN111313649A (en) | Voice coil motor three-axis linkage platform | |
| KR100284767B1 (en) | Actuator for Magnetic Bearings | |
| JPS592562A (en) | Movable coil type actuator | |
| CN112122793A (en) | 5DOF optical path control magnetic suspension driver | |
| CN116742917B (en) | Radial floating polishing end effector of electromagnetic direct-driven robot | |
| CN215340539U (en) | Imager and imaging system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |