CN209086531U - Continuous focus control - Google Patents
Continuous focus control Download PDFInfo
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- CN209086531U CN209086531U CN201821864002.5U CN201821864002U CN209086531U CN 209086531 U CN209086531 U CN 209086531U CN 201821864002 U CN201821864002 U CN 201821864002U CN 209086531 U CN209086531 U CN 209086531U
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- lens assembly
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- sliding block
- focusing
- guide rail
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Abstract
The utility model discloses a kind of continuous focus controls comprising: Lens assembly, including the first Lens assembly and the second Lens assembly, the first Lens assembly and the second Lens assembly are backwards to setting；Focusing component, including the first focusing component and the second focusing component, first focusing component is connect with the first Lens assembly, second focusing component is connect with the second Lens assembly, and guidance set, it includes the first guide rail, it is slidably connected to the first sliding block and the second sliding block of the first guide rail, second guide rail and the third sliding block and Four-slider for being slidably connected to the second guide rail, first sliding block and third sliding block are connect with the first Lens assembly respectively, second sliding block and Four-slider is connect respectively with the second Lens assembly and first guide rail, second guide rail with the straight line parallel where the eyeglass axis of the eyeglass axis of the first Lens assembly and the second Lens assembly.The utility model walks in focussing process, and smooth accurate, plain shaft precision is high and image quality is good.
Description
Technical field
The utility model relates to the technical fields of optical focusing equipment, and in particular to a kind of.
Background technique
With the continuous development of science and technology, various high-precision optical instruments are widely used to the work of people
And it in experiment research and development, is provided a great convenience for scientific research development.Parameter measurement and height for high-precision optical instrument
The application of quality photo electric imaging system has strict requirements, and then the focusing of optical system to the determination of its optical system focal plane
Device is applied and is given birth to.But structure is complicated for traditional optical system focus control, walks not smooth enough, and Adjustment precision is low.
Utility model content
In view of the deficiencies in the prior art, the purpose of this utility model is to provide a kind of continuous focusing components, should
The smooth accurate and plain shaft precision that walks in focussing process is high.
To achieve the above objectives, the technical scheme adopted by the utility model is that:
A kind of continuous focus control comprising:
Lens assembly comprising the first Lens assembly and the second Lens assembly, first Lens assembly and described second
Lens assembly is arranged backwards, and the eyeglass axis weight of the eyeglass axis on first Lens assembly and second Lens assembly
It closes；
Focusing component comprising the first focusing component and the second focusing component, first focusing component and described first
Lens assembly connection, is used to that first Lens assembly to be driven to do linear movement, second focusing component and described second
Lens assembly connection, is used to that second Lens assembly to be driven to do linear movement；And
Guidance set comprising the first guide rail, the first sliding block for being slidably connected to first guide rail and the second sliding block, second are led
Rail and the third sliding block and Four-slider for being slidably connected to second guide rail, first sliding block and the third sliding block respectively with
The first Lens assembly connection, second sliding block and the Four-slider are connect with second Lens assembly respectively, and
The mirror of first guide rail, second guide rail with the eyeglass axis of first Lens assembly and second Lens assembly
Straight line parallel where piece axis.
It further, further include closed loop feedback component comprising:
Displacement sensor is connect with first Lens assembly；And
Control system comprising controller, the controller respectively with institute displacement sensors, the first focusing group
Part, second focusing component electrical connection.
Further, institute's displacement sensors include electronic component and the brush with the electronic component CONTACT WITH FRICTION,
The electronic component is arranged in the movement routine of first Lens assembly, and the brush and first Lens assembly connect
It connects.
It further, further include fail safe component, the fail safe component includes the first fail safe component and the
Two fail safe components, the first fail safe component include first support and are arranged in the first support first micro-
Dynamic switch, the second fail safe component include second support and the second microswitch for being arranged in the second support,
First microswitch and second microswitch are electrically connected with the controller, and the first support is arranged in institute
State electronic component close to the end side of second Lens assembly and when first Lens assembly be moved to it is connected to it described
When brush is separated with the electronic component, first Lens assembly is contacted with first microswitch, first fine motion
Signal is passed to the controller by switch, and the controller receives signal and controls motor and the institute of first focusing component
The motor for stating the second focusing component stops working, and the second support is arranged in the electronic component far from second lens set
The end side of part and when first Lens assembly is moved to the brush connected to it and separates with the electronic component, it is described
First Lens assembly is contacted with second microswitch, and signal is passed to the controller, institute by first microswitch
The motor for stating motor and second focusing component that controller receives signal and controls first focusing component stops working.
Further, first focusing component/second focusing component includes that motor and the motor output shaft connect
The ball-screw connect, first Lens assembly/the second tune Lens assembly are connect with the ball-screw.
Further, the motor output shaft is connect with the ball-screw by shaft coupling.
It further, further include fixing seat, the motor is arranged in fixing seat, and the both ends of the ball-screw pass through axis
It holds and fixes on the fixing seat.
Further, first Lens assembly/second Lens assembly includes frame, is arranged on the frame
Eyeglass, is arranged in the frame the first support plate for being arranged on the frame and being used to connect with the first sliding block/second sliding block
Upper and the second support plate for being connect with third sliding block/Four-slider and the connecting plate being connect with the frame, the company
Have through-hole so that the connecting plate is set on the ball-screw on fishplate bar.
Further, first guide rail and eyeglass axis and institute of second guide rail about first Lens assembly
Straight line where stating the eyeglass axis of the second Lens assembly is symmetrical.
Compared with the prior art, the advantages of the utility model are:
(1) Lens assembly walks smooth accurate.The focusing component of the utility model is by servo motor, shaft coupling, bearing
And ball-screw integrative installation technology, it realizes the smooth of Lens assembly and accurately walks；
(2) plain shaft precision is high.The guidance set of the utility model makes the first Lens assembly using the double Guide Rail Designs of double-slider
With the second Lens assembly displacement, center of lens does not shift, and ensure that plain shaft precision；
(3) closed-loop control.Eyeglass displacement is fed back to control system using closed loop feedback component by the utility model in due course,
Further improve the displacement accuracy of Lens assembly；
(4) fail safe.When displacement sensor is controlled and failed, the focusing of fail safe stop first can be started immediately
The servo motor of component and the second focusing component, movement stop, and avoid the devices such as optical mirror slip, structural member impaired.
Detailed description of the invention
Fig. 1 is the main view of continuous focus control provided by the embodiment of the utility model；
Fig. 2 is the top view of continuous focus control provided by the embodiment of the utility model；
Fig. 3 is the left view of continuous focus control provided by the embodiment of the utility model；
Fig. 4 is the schematic perspective view of continuous focus control provided by the embodiment of the utility model；
Fig. 5 is the first Lens assembly structural schematic diagram provided by the embodiment of the utility model；
Fig. 6 is the first focus control provided by the embodiment of the utility model/second focus control structural schematic diagram；
Fig. 7 is the first failed component provided by the embodiment of the utility model/second failed component structural schematic diagram.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and embodiments.
Common shown referring to figures 1-4, the utility model embodiment provides a kind of continuous focus control, including lens set
Part, focusing component and guidance set.Lens assembly includes the first Lens assembly 10 and the second Lens assembly 11.See Fig. 5, first
Lens assembly 10 includes frame 100, the eyeglass (not shown) being arranged in frame 100, is arranged on 100 outer peripheral surface of frame
The first support plate 101 and the second support plate 102 and connecting plate 103.In order to enable the first Lens assembly 10 and the second eyeglass
Component 11 is more stable in moving process, and the first support plate 101 and the second support plate 102 are symmetrical arranged about one diameter of eyeglass.
There is through-hole 104, the through-hole 104 with focusing component for connecting on connecting plate 103.The structure and first of second Lens assembly 11
The structure of Lens assembly 10 is identical.
Focusing component includes the first focusing component 20 and the second focusing component 21, the first focusing component 20 and the first lens set
Part 10 connects, and is used to that the first Lens assembly 10 to be driven to do linear movement；Second focusing component 21 and the second Lens assembly 11 connect
It connects, is used to that the second Lens assembly 11 to be driven to do linear movement.See Fig. 1 and Fig. 4, in focussing process, the second focusing component 21
Drive the second Lens assembly 11 mobile, the second Lens assembly 11 can be moved to point A1, the first focusing component 20 driving first by point A
Lens assembly 10 is mobile, and the first Lens assembly 10 can be moved to point B1 by point B.See that Fig. 6, the first focusing component 20 include servo electricity
Machine 200 passes through the ball-screw 202 that shaft coupling 201 is connect with 200 output shaft of servo motor.For preferably fixed servo electricity
Machine 200 and ball-screw 202, the first focusing component 20 further include fixing seat 203, and servo motor 200 is arranged in fixing seat 203
On, the circular hole that the output shaft of servo motor 200 passes through in fixing seat 203 is connect with ball-screw 202.The two of ball-screw 202
End is connect by bearing 204 with fixing seat 203, can make 202 structure of ball-screw more firm in this way.Second focusing component
21 structure is identical with the structure of the first focusing component 20.When assembling Lens assembly and focusing component, by the first focusing
Ball-screw 202 on component 20 passes through the through-hole 104 on connecting plate 103 so that connecting plate 103 is set in ball-screw 202
The two to be fixed together so that the first focusing component 20 drives the first Lens assembly 10 to do linear movement when working.The
Two focusing components 21 and the second Lens assembly 11 are connected and fixed that mode is identical with the above method, and after the assembly is completed first
Lens assembly 10 and the second Lens assembly 11 are backwards to setting and eyeglass axis and the second Lens assembly on the first Lens assembly 10
11 eyeglass axis is overlapped, and the first focusing component 20 is then oppositely arranged with the second focusing component 21.
See that Fig. 5, guidance set include the first guide rail 30, the first sliding block 31 and the second sliding block for being slidably connected to the first guide rail 30
32, the second guide rail 33 and the third sliding block 34 and Four-slider 35 of the second guide rail 33 are slidably connected to, wherein the first sliding block 31 and
The first support plate 101 on one Lens assembly 10 connects, the second support plate 102 on third sliding block 34 and the first Lens assembly 10
Connection；Second sliding block 32 and Four-slider 35 are connect with the second Lens assembly 11 respectively, connection type and the first Lens assembly
11 is identical.First guide rail 30, the second guide rail 33 with the eyeglass axis and the second Lens assembly 11 on the first Lens assembly 10
Straight line parallel where eyeglass axis, and the first guide rail 30 and the second guide rail 33 are arranged about the eyeglass axisymmetrical, to protect
It has demonstrate,proved the first Lens assembly 10 and the second Lens assembly 11 is moved along its axis direction always, it is ensured that imaging effect.
In order to accurately adjust Lens assembly displacement, the utility model further includes closed loop feedback component, closed loop feedback group
Part includes displacement sensor 40 and control system (not shown).Control system includes controller, controller and displacement sensing
The servo motor of device 40, the servo motor 200 of the first focusing component 20 and the second focusing component 21 is electrically connected.See Fig. 5, position
Displacement sensor 40 includes electronic component 400 and the brush 401 with 400 CONTACT WITH FRICTION of electronic component, and the setting of electronic component 400 exists
In the movement routine of first Lens assembly 10, brush 401 is connect with the frame 100 of the first Lens assembly 10.First Lens assembly
10 drive the mobile displacement information to incude the first Lens assembly 10 on electronic component 400 of brush 401 in moving process,
And displacement signal is passed into controller, controller is according to the displacement signal received, by comparing displacement signal, control first
The servo motor of the servo motor 200 of focusing component 20 and the second focusing component 21 works and then further adjusts the first lens set
The displacement of part 10 and the second Lens assembly 11 is to guarantee that imaging effect is optimal.
The focus control of the utility model further includes fail safe component, which includes the first fail safe
Component 50 and the second fail safe component 51, are shown in Fig. 7, and the first fail safe component 50 includes first support 500 and setting the
The first microswitch 501 on one bracket 500, the second fail safe component 51 include second support 510 and are arranged at second
The second microswitch 511 on frame 510, the first microswitch 501 and the second microswitch 511 are electrically connected with controller.
The electronic component 400 of displacement sensor 40 is arranged in close to the end side of the second Lens assembly 11 and when the first mirror in first support 500
When piece component 10 is moved to brush 401 connected to it and separates with electronic component 400, the first Lens assembly 10 is opened with the first fine motion
501 contacts are closed, signal is passed to controller by the first microswitch 501, and controller receives signal and controls the first focusing component
The servo motor of 20 servo motor 200 and the second focusing component 21 stops working.Second support 510 is arranged in displacement sensor
End side of 40 electronic component 400 far from the second Lens assembly 11 and brush connected to it is moved to when the first Lens assembly 10
401 with electronic component 400 when separating, and the first Lens assembly 10 is contacted with the second microswitch 511, and the second microswitch 511 will
Signal passes to controller, and controller receives signal and controls the servo motor 200 and the second focusing group of the first focusing component 20
The servo motor of part 21 stops working.The setting of fail safe component can prevent Lens assembly from causing with the collision of other structures part
Eyeglass or the damage of other structures part.
Servo motor during the continuous focus control focusing of application the present embodiment, on the first focusing component 20
200 work drive ball-screws 202 connected to it to rotate, ball-screw 200 by rotary motion be converted into linear motion to
The first Lens assembly 10 connected to it is driven to do linear movement, the first Lens assembly 10 is in the first guide rail 30 and the second guide rail 33
Guiding role under move in a straight line；At the same time, the second Lens assembly 11 is in the driving of the second focusing component 21 and first
One moves in a straight line under the guiding role of guide rail 30 and the second guide rail 33, to realize focusing.In focussing process, displacement sensing
Device 40 incudes the displacement of the first Lens assembly 10 and displacement signal is passed to controller, and controller receives displacement signal and leads to
It crosses and compares stopping when displacement to the imaging effect for continuing the first Lens assembly 10 of control and the second Lens assembly 11 reaches best
It is mobile.In focussing process, when displacement sensor 40 fails (when electronic component 400 is separated with brush 401), the first eyeglass
Component 10 is collided with the microswitch on fail safe component, triggers microswitch, and signal is passed to controller by microswitch,
Controller controls the first Lens assembly 10 and 11 stop motion of the second Lens assembly, to prevent Lens assembly and other structures part
Collision causes instrument damage.The focusing component and closed loop feedback component of the utility model ensure that the first Lens assembly and the second mirror
Piece component walks smoothly accurately in focussing process, and guidance set ensure that the plain shaft precision in focussing process, fail safe
Component damages instrument not when focusing excessive, to ensure that image quality is best.
The utility model is not limited to above embodiment, for those skilled in the art, not
Under the premise of being detached from the utility model principle, several improvements and modifications can also be made, these improvements and modifications are also considered as this reality
Within novel protection scope.The content being not described in detail in this specification belongs to well known to professional and technical personnel in the field
The prior art.
Claims (9)
1. a kind of continuous focus control, characterized in that it comprises:
Lens assembly comprising the first Lens assembly and the second Lens assembly, first Lens assembly and second eyeglass
Component is backwards to setting, and the eyeglass axis on first Lens assembly is overlapped with the eyeglass axis of second Lens assembly；
Focusing component comprising the first focusing component and the second focusing component, first focusing component and first eyeglass
Component connection is used to that first Lens assembly to be driven to do linear movement, second focusing component and second eyeglass
Component connection, is used to that second Lens assembly to be driven to do linear movement；And
Guidance set comprising the first guide rail, the first sliding block for being slidably connected to first guide rail and the second sliding block, the second guide rail with
And be slidably connected to the third sliding block and Four-slider of second guide rail, first sliding block and the third sliding block respectively with it is described
The connection of first Lens assembly, second sliding block and the Four-slider are connect with second Lens assembly respectively, and described
The eyeglass axis of first guide rail, second guide rail with the eyeglass axis of first Lens assembly and second Lens assembly
Straight line parallel where line.
2. continuous focus control as described in claim 1, it is characterised in that: further include closed loop feedback component comprising:
Displacement sensor is connect with first Lens assembly；And
Control system comprising controller, the controller respectively with institute displacement sensors, first focusing component, institute
State the electrical connection of the second focusing component.
3. continuous focus control as claimed in claim 2, it is characterised in that: institute's displacement sensors include electronic component and
With the brush of the electronic component CONTACT WITH FRICTION, the electronic component is arranged in the movement routine of first Lens assembly,
The brush is connect with first Lens assembly.
4. continuous focus control as claimed in claim 3, it is characterised in that: further include fail safe component, the failure is protected
Protecting assembly includes the first fail safe component and the second fail safe component, and the first fail safe component includes first support
With the first microswitch being arranged in the first support, the second fail safe component includes that second support and setting exist
The second microswitch in the second support, first microswitch and second microswitch with the controller
The electronic component is arranged in close to the end side of second Lens assembly and when described first in electrical connection, the first support
When Lens assembly is moved to the brush connected to it and separates with the electronic component, first Lens assembly and described the
Signal is passed to the controller by the contact of one microswitch, first microswitch, and the controller receives signal and controls
The motor of the motor and second focusing component of making first focusing component stops working, and the second support is arranged in institute
State end side of the electronic component far from second Lens assembly and when first Lens assembly be moved to it is connected to it described
When brush is separated with the electronic component, first Lens assembly is contacted with second microswitch, first fine motion
Signal is passed to the controller by switch, and the controller receives signal and controls motor and the institute of first focusing component
The motor for stating the second focusing component stops working.
5. continuous focus control as described in claim 1, it is characterised in that: first focusing component/second focusing
The ball-screw that component includes motor, is connect with the motor output shaft, first Lens assembly/described second adjust lens set
Part is connect with the ball-screw.
6. continuous focus control as claimed in claim 5, it is characterised in that: the motor output shaft and the ball-screw are logical
Cross shaft coupling connection.
7. continuous focus control as claimed in claim 5, it is characterised in that: further include fixing seat, the motor setting is solid
In reservation, the both ends of the ball-screw are fixed on the fixing seat by bearing.
8. continuous focus control as claimed in claim 5, it is characterised in that: first Lens assembly/second eyeglass
Component includes frame, the eyeglass being arranged on the frame, is arranged on the frame and is used for and the first sliding block/second sliding block
First support plate of connection, be arranged on the frame and for the second support plate for being connect with third sliding block/Four-slider with
And the connecting plate being connect with the frame, have through-hole so that the connecting plate is set in the ball wire on the connecting plate
On thick stick.
9. continuous focus control as claimed in claim 8, it is characterised in that: first guide rail and second guide rail about
Straight line where the eyeglass axis of the eyeglass axis of first Lens assembly and second Lens assembly is symmetrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821864002.5U CN209086531U (en) | 2018-11-13 | 2018-11-13 | Continuous focus control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821864002.5U CN209086531U (en) | 2018-11-13 | 2018-11-13 | Continuous focus control |
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| Publication Number | Publication Date |
|---|---|
| CN209086531U true CN209086531U (en) | 2019-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821864002.5U Active CN209086531U (en) | 2018-11-13 | 2018-11-13 | Continuous focus control |
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| CN (1) | CN209086531U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471159A (en) * | 2019-08-01 | 2019-11-19 | 湖北三江航天险峰电子信息有限公司 | A kind of fast velocity modulation-focusing mobile platform |
| CN117687168A (en) * | 2024-02-01 | 2024-03-12 | 吉林省巨程智造光电技术有限公司 | Aspherical lens device for space signal transmission |
| CN118151325A (en) * | 2024-05-08 | 2024-06-07 | 无锡星微科技有限公司杭州分公司 | Stroke-variable optical focusing system |
-
2018
- 2018-11-13 CN CN201821864002.5U patent/CN209086531U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471159A (en) * | 2019-08-01 | 2019-11-19 | 湖北三江航天险峰电子信息有限公司 | A kind of fast velocity modulation-focusing mobile platform |
| CN117687168A (en) * | 2024-02-01 | 2024-03-12 | 吉林省巨程智造光电技术有限公司 | Aspherical lens device for space signal transmission |
| CN117687168B (en) * | 2024-02-01 | 2024-04-19 | 吉林省巨程智造光电技术有限公司 | Aspherical lens device for space signal transmission |
| CN118151325A (en) * | 2024-05-08 | 2024-06-07 | 无锡星微科技有限公司杭州分公司 | Stroke-variable optical focusing system |
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