CN108627946A - A kind of electronic continuous zoom lens - Google Patents
A kind of electronic continuous zoom lens Download PDFInfo
- Publication number
- CN108627946A CN108627946A CN201810474582.5A CN201810474582A CN108627946A CN 108627946 A CN108627946 A CN 108627946A CN 201810474582 A CN201810474582 A CN 201810474582A CN 108627946 A CN108627946 A CN 108627946A
- Authority
- CN
- China
- Prior art keywords
- microscope group
- zoom
- compensation
- optical axis
- mover
- 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
- 230000003287 optical effect Effects 0.000 claims abstract description 21
- 238000004804 winding Methods 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 210000003781 tooth socket Anatomy 0.000 claims description 5
- 239000000696 magnetic material Substances 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
A kind of electronic continuous zoom lens of present invention offer, including lens barrel, preceding fixed microscope group, zoom microscope group, compensation microscope group, afterwards fixed microscope group, the stator in lens barrel and for the zoom microscope group mounting bracket of the zoom microscope group to be fixedly mounted, in lens barrel and for the compensation microscope group and cylindrical linear for compensating microscope group to be fixedly mounted；Wherein, the optical axis of the preceding fixed microscope group, the optical axis of zoom microscope group, the optical axis of the optical axis and rear fixed microscope group that compensate microscope group are coaxial；The stator includes the winding of the multiple iron cores being located in lens barrel and winding on each core.The electronic continuous zoom lens of the present invention are compared with traditional zoom camera lens, eliminate the transmission links such as cam, gear, bearer ring, guide pin, zoom microscope group and compensation microscope group are directly driven using linear motor mode, avoids and repeats to become double precision, service life problem caused by fretting wear.
Description
Technical field
The invention belongs to for radiographic measurement instrument optical lens technical field more particularly to a kind of electronic continuous zoom
Camera lens.
Background technology
In mechanical processing process, the geometric dimension measurements of parts is indispensable important link.Image measurer
It is widely applied geometric dimension measuring apparatus, measured piece is placed on the table, using image system to measured size feature
It is focused and takes pictures, the measurement of geometric dimension is completed through image procossing.Optical lens is the core component of image measurer, light
It learns image quality and directly decides measurement accuracy.To adapt to different measurement demands, the optical lens of image measurer mostly uses change
Times camera lens, also known as zoom lens.The characteristics of zoom camera lens be focal length can consecutive variations in a certain range, and image planes position is always
It remains stationary as, image quality keeps good.The structure of typical zoom camera lens as shown in Figure 1, wherein a is preceding fixed microscope group, effect be to
System provides fixed picture；B is zoom microscope group, is moved between preceding fixed microscope group a and rear fixed microscope group d, effect is to change light
Learn enlargement ratio；C is compensation microscope group, makees nonlinear motion by certain curvilinear path, effect is compensation zoom microscope group in zoom
Generated image planes movement in the process；D fixes microscope group after being, the last real image for converting the picture for compensating microscope group to system,
And the synthesis focal length value of system, equipment aperture diaphragm are adjusted, ensure that the relative aperture of the system in zoom moves is constant, before compensation
(a is the remaining difference of preceding fixed microscope group, zoom microscope group b and compensation microscope group c) to 3 microscope groups, and whole system image quality is made to reach
To optimum state.
Existing zoom camera lens generally use cam structure, as [Qiao Jian, Cao Lihua, Cui Shuan wait zoom mirrors to document
Header structure designs and focal length exports analysis Application Optics .2010,31 (4) in real time], cam mechanism is to realize to be rotated by motor to transport
The executing agency that turn turns to zoom, compensation microscope group is moved along optical axis direction.Cam mechanism is mainly with the cam with gear, bearing
The compositions such as ring, guide rail, guide pin, locking nut.When motor driving cam rotates, zoom microscope group is passed motion to by guide pin
With compensation microscope group.Under the guiding of guide rail, by the convert rotational motion of cam be zoom, compensation microscope group along optical axis direction straight line
It is mobile.
Due to the use of cam drive mechanical structure, the main problem of current zoom camera lens is cam path, bearer ring, main branch
The design, processing, matching requirements for supportting the vital parts such as lens barrel are high, since mechanical wear causes zoom repeatable accuracy, service life
It is not high.
Invention content
The purpose of the present invention is to provide a kind of to directly drive zoom microscope group using linear motor mode and compensating microscope group
Electronic continuous zoom lens.
The present invention provides a kind of electronic continuous zoom lens, including lens barrel, preceding fixed microscope group, zoom microscope group, compensation microscope group,
Afterwards fix microscope group, in lens barrel and for be fixedly mounted the zoom microscope group zoom microscope group mounting bracket, be located at lens barrel in and
The stator of compensation microscope group and cylindrical linear for the compensation microscope group to be fixedly mounted；, wherein the preceding fixed mirror
The optical axis of group, the optical axis of zoom microscope group, the optical axis for compensating microscope group and the rear optical axis for fixing microscope group are coaxial；The stator includes position
In the winding of multiple iron cores and winding on each core in lens barrel.
Preferably, the iron core is in tooth socket shape, and the winding is embedded in the slot of iron core.
Preferably, the zoom microscope group fixed frame and compensation microscope group fixed frame are made of soft magnetic materials.
Preferably, it is respectively provided with permanent magnet on the outside of the outside of zoom microscope group fixed frame and compensation microscope group fixed frame.
Preferably, further include the first mover and the second mover, the first mover include zoom microscope group fixed frame and its on the outside of
Permanent magnet, the second mover include compensating microscope group fixed frame and permanent magnet the second mover of formation on the outside of it.
Preferably, the permanent magnet is circular ring shape, and the annular width of permanent magnet is identical as the facewidth of stator.
Preferably, the permanent magnet spacing is identical as stator space width.
Preferably, the first mover and the second mover are arranged in parallel and do not contact with each other.
The electronic continuous zoom lens of the present invention eliminate cam, gear, bearer ring, guide pin compared with traditional zoom camera lens
Equal transmission links directly drive zoom microscope group and compensation microscope group using linear motor mode, avoid weight caused by fretting wear
Become double precision, service life problem again；This invention simplifies zoom camera lens internal structures, reduce camera lens assembly difficulty, improve
Zoom repeatable accuracy and service life, improve change speed.
Description of the drawings
Fig. 1 is the schematic diagram of existing zoom camera lens；
Fig. 2 is the structural schematic diagram of the electronic continuous zoom lens of the present invention；
Fig. 3 is the structural schematic diagram of the mover of electronic continuous zoom lens shown in Fig. 2.
Figure number explanation：
Microscope group, 3- zooms microscope group, 4- are fixed before 1- lens barrels, 11- tooth sockets, 12- windings, 2- compensates fixed mirror after microscope group, 5-
Group, 31- zoom microscope groups fixed frame, 41- compensation microscope groups fixed frame, 311/411- permanent magnets.
Specific implementation mode
The present invention provides a kind of electronic continuous zoom lens, and such as Fig. 2, electronic continuous zoom lens include lens barrel 1, preceding fixation
Microscope group 2, zoom microscope group 3, zoom microscope group mounting bracket 31, compensation microscope group in lens barrel 1 and for zoom microscope group 3 to be fixedly mounted
4, compensation microscope group fixed frame 41, rear fixed microscope group 5 and the cylinder type in lens barrel 1 and for compensation microscope group 4 to be fixedly mounted
The stator of linear motor, wherein the optical axis of preceding fixed microscope group 2, the optical axis of zoom microscope group 3, the optical axis for compensating microscope group 4 and rear solid
The optical axis of horizontal glass group 5 is coaxial.
Wherein lens barrel 1 is used as mirror head outer shell, and fixed microscope group 2, rear fixed microscope group 5 and cylindrical linear are fixed before fixed
Son.The inner cavity of lens barrel 1 is equipped with foreground terrace 111 and backstage terrace 112, and foreground terrace 111 fixes microscope group before being used for location and installation
2, backstage terrace 111 fixes microscope group 5 after possessing location and installation.
Cylindrical linear includes stator, the first mover and the second mover.
Stator includes the multiple iron cores 11 being located in lens barrel 1 and the winding 12 being wrapped on each iron core 11.Wherein, iron
Core 11 is in tooth socket shape, and winding 12 is embedded in the slot of iron core 11.
As shown in figure 3, zoom microscope group fixed frame 31 and compensation microscope group fixed frame 41 are made of soft magnetic materials, magnetic is formed
Yoke, the outside of zoom microscope group fixed frame 31 and the outside of compensation microscope group fixed frame 41 are respectively provided with permanent magnet 341, i.e. zoom microscope group is solid
Determine frame 31 and the permanent magnet 311 on the outside of it forms the first mover, compensation microscope group fixed frame 41 and the formation of permanent magnet 411 on the outside of it
Second mover.First mover and the second mover are arranged in parallel and do not contact with each other.
Permanent magnet 311,411 is circular ring shape, and the annular width of permanent magnet 311,411 is identical as the stator facewidth, permanent magnet
Spacing is identical as stator space width.
By motion controller (not shown), the first mover and the second mover is made to respectively drive zoom microscope group 3 and compensating glass
4 self-movements of group, realize the change of lens ratio.
Contactless state is in by electromagnetic force between the first mover and the second mover and stator of cylindrical linear,
Zoom microscope group 3 and compensation microscope group 4 are directly driven by the first mover and the second mover respectively, each parts inside entire zoom camera lens
Between there is no any friction, so, the service life of the electronic continuous zoom lens of the present invention is long, zoom repeatability is high, becomes speed
Degree is fast.
The cylindrical linear that the present invention uses, in such a way that winding, mover setting permanent magnet are set on stator,
The mode that permanent magnet is set on stator, winding is set on mover can be used.
The electronic continuous zoom lens of the present invention eliminate cam, gear, bearer ring, guide pin compared with traditional zoom camera lens
Equal transmission links directly drive zoom microscope group and compensation microscope group using linear motor mode, avoid weight caused by fretting wear
Become double precision, service life problem again.This invention simplifies zoom camera lens internal structures, reduce camera lens assembly difficulty, improve
Zoom repeatable accuracy and service life, improve change speed.
During the preferred embodiment of the present invention has been described above in detail, but present invention is not limited to the embodiments described above
Detail can carry out a variety of equivalents to technical scheme of the present invention within the scope of the technical concept of the present invention, these
Equivalents all belong to the scope of protection of the present invention.
During the preferred embodiment of the present invention has been described above in detail, but present invention is not limited to the embodiments described above
Detail can carry out a variety of equivalents to technical scheme of the present invention within the scope of the technical concept of the present invention, these
Equivalents all belong to the scope of protection of the present invention.
Claims (8)
1. a kind of electronic continuous zoom lens, including lens barrel, preceding fixed microscope group, zoom microscope group, compensation microscope group and rear fixed mirror
Group, it is characterised in that：Further include being located in lens barrel and for the zoom microscope group mounting bracket of the zoom microscope group to be fixedly mounted, is located at
The stator of compensation microscope group and cylindrical linear in lens barrel and for the compensation microscope group to be fixedly mounted；Wherein, described
The optical axis of preceding fixed microscope group, the optical axis of zoom microscope group, the optical axis for compensating microscope group and the rear optical axis for fixing microscope group are coaxial；It is described fixed
Attached bag includes the winding of multiple iron cores and winding on each core in lens barrel.
2. electronic continuous zoom lens according to claim 1, it is characterised in that：The iron core be in tooth socket shape, it is described around
Group is embedded in the slot of iron core.
3. electronic continuous zoom lens according to claim 1, it is characterised in that：The zoom microscope group fixed frame and compensation
Microscope group fixed frame is made of soft magnetic materials.
4. electronic continuous zoom lens according to claim 1, it is characterised in that：The outside of zoom microscope group fixed frame and benefit
It repays and is respectively provided with permanent magnet on the outside of microscope group fixed frame.
5. electronic continuous zoom lens according to claim 4, it is characterised in that：Further include that the first mover and second are dynamic
Son, the first mover include zoom microscope group fixed frame and the permanent magnet on the outside of it, and the second mover includes compensation microscope group fixed frame and its
The permanent magnet in outside forms the second mover.
6. electronic continuous zoom lens according to claim 4, it is characterised in that：The permanent magnet is circular ring shape, permanent magnetism
The annular width of body is identical as the facewidth of stator.
7. electronic continuous zoom lens according to claim 4, it is characterised in that：The permanent magnet spacing and stator tooth socket
It is of same size.
8. electronic continuous zoom lens according to claim 5, it is characterised in that：First mover and the second mover is parallel sets
It sets and does not contact with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474582.5A CN108627946A (en) | 2018-05-17 | 2018-05-17 | A kind of electronic continuous zoom lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810474582.5A CN108627946A (en) | 2018-05-17 | 2018-05-17 | A kind of electronic continuous zoom lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108627946A true CN108627946A (en) | 2018-10-09 |
Family
ID=63693667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810474582.5A Pending CN108627946A (en) | 2018-05-17 | 2018-05-17 | A kind of electronic continuous zoom lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108627946A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07248522A (en) * | 1994-03-10 | 1995-09-26 | Canon Inc | Optical device |
| CN201051173Y (en) * | 2007-04-06 | 2008-04-23 | 长春奥普光电技术股份有限公司 | A zooming machine based on magnetic bar guide rail and line electromotor focusing |
| JP2010125510A (en) * | 2008-11-28 | 2010-06-10 | Sunx Ltd | Laser beam machining apparatus |
| JP2014121104A (en) * | 2012-12-13 | 2014-06-30 | Tamron Co Ltd | Brushless dc motor, motor unit, optical element driving device and imaging apparatus |
| CN106019542A (en) * | 2016-06-27 | 2016-10-12 | 中国科学院西安光学精密机械研究所 | Multifunctional broadband continuous zooming optical system |
| CN208654418U (en) * | 2018-05-17 | 2019-03-26 | 苏州天准科技股份有限公司 | A kind of electronic continuous zoom lens |
-
2018
- 2018-05-17 CN CN201810474582.5A patent/CN108627946A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07248522A (en) * | 1994-03-10 | 1995-09-26 | Canon Inc | Optical device |
| CN201051173Y (en) * | 2007-04-06 | 2008-04-23 | 长春奥普光电技术股份有限公司 | A zooming machine based on magnetic bar guide rail and line electromotor focusing |
| JP2010125510A (en) * | 2008-11-28 | 2010-06-10 | Sunx Ltd | Laser beam machining apparatus |
| JP2014121104A (en) * | 2012-12-13 | 2014-06-30 | Tamron Co Ltd | Brushless dc motor, motor unit, optical element driving device and imaging apparatus |
| CN106019542A (en) * | 2016-06-27 | 2016-10-12 | 中国科学院西安光学精密机械研究所 | Multifunctional broadband continuous zooming optical system |
| CN208654418U (en) * | 2018-05-17 | 2019-03-26 | 苏州天准科技股份有限公司 | A kind of electronic continuous zoom lens |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108627945A (en) | A kind of electronic continuous zoom lens | |
| EP0469532B1 (en) | Optical apparatus provided with a driving unit for moving a lens | |
| CN1205495C (en) | Lens barrel | |
| CN208654418U (en) | A kind of electronic continuous zoom lens | |
| CN102608744A (en) | Microscope objective with at least one lens group that can be moved along the optical axis | |
| CN210166539U (en) | Semiconductor laser automatic optical fiber coupling device | |
| CN107422450A (en) | A kind of CCD focus adjusting mechanisms for visible optical imaging system | |
| CN109451242A (en) | A kind of High Precision Automatic focus control | |
| CN102112904B (en) | Lens barrel and image pickup device | |
| CN106443993A (en) | Compact dual-path three-field long-wave infrared system | |
| US20120212805A1 (en) | Lens Unit for Infrared Camera and Infrared Camera Using the Same | |
| CN208421374U (en) | A kind of electronic continuous zoom lens | |
| JP2003057707A (en) | Image blurring correction device | |
| CN106716212B (en) | Zoom lens barrel, interchangeable lenses and television camera apparatus | |
| CN108627946A (en) | A kind of electronic continuous zoom lens | |
| CN103364933A (en) | Digital cam continuous zooming system | |
| US20210088748A1 (en) | Lens barrel | |
| TWI381198B (en) | A lens module | |
| JP2008134300A (en) | Imaging apparatus | |
| CN210155381U (en) | Zooming core of automatic zooming lens based on incremental magnetic encoder | |
| CN201141934Y (en) | Computer plate-making device capable of automatic adjusting focal length of lens | |
| JP3688700B2 (en) | Retractable lens barrel | |
| CN105716831A (en) | Scene simulator system with large view field and super large dynamic range object distance | |
| CN109856727A (en) | The focusing of microscope structure of optical fiber splicer | |
| CN101915983B (en) | Continuous zooming projection lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |