CN207817289U - A kind of optical lens zoom lens control device - Google Patents
A kind of optical lens zoom lens control device Download PDFInfo
- Publication number
- CN207817289U CN207817289U CN201721754500.XU CN201721754500U CN207817289U CN 207817289 U CN207817289 U CN 207817289U CN 201721754500 U CN201721754500 U CN 201721754500U CN 207817289 U CN207817289 U CN 207817289U
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- lens barrel
- lens
- mirror holder
- control device
- annular groove
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Abstract
The utility model discloses a kind of optical lens zoom lens control device, including lens barrel, the mobile mirror holder of the one or more being set in lens barrel, mobile mirror holder is coaxially disposed with lens barrel, it is provided with annular groove on mobile mirror holder, the fixed spring that bending circularizes is installed on annular groove, multiple bearing installation positions are provided on annular groove, bearing is mounted on by fixed spring on bearing installation position, and bearing top circle is fitted closely with lens barrel inner wall.The problem of the utility model makes to move when mirror holder moves axially in lens barrel becomes rolling friction by sliding friction, and the Zoom structure frictional force for solving current optical lens sliding friction formula is big, easy to be stuck and bounce.
Description
Technical field
The utility model is related to a kind of optical lens zoom lens control devices, are that one kind efficiently reducing moving lens specifically
The optical lens Zoom structure of frame mobile frictional force.
Background technology
Optical lens is essential component in NI Vision Builder for Automated Inspection, and the quality of camera lens directly influences image quality
Quality influences realization and the effect of algorithm.Optical lens specification is various, from that can be divided into short-focus lens, middle zoom lens on focal length, grows
Zoom lens；There are wide-angle, standard, long shot from visual field size point；Dividing in structure has fixed aperture tight shot, manual iris fixed
Zoom lens, automatic diaphragm fixed focus lens, manual zoom camera lens, automatic zoom camera lens, auto iris motorized zoom lens and electronic
Three is variable（Aperture, focal length, focusing are variable）Camera lens etc..
With the development of modern society, the demand of long-focus automatic zoom camera lens is more and more stronger, but existing electronic change
Optical mirror slip of the burnt long-focus, heavy caliber camera lens all containing zoom, compensation two even more than movement simultaneously, it is well known that
Mobile mirror holder is mobile in mirror body, and whether steady smoothness depends on gap size and frictional force size of the mobile mirror holder in lens barrel,
Gap is smaller, and alignment is better, but frictional force is bigger, more easy to be stuck, otherwise gap is bigger, and frictional force is smaller, but same simultaneously
Axis is also poorer, easily beats in moving process, and it is serious to result in flating in zooming procedure.
Invention content
For the problem that the Zoom structure frictional force of current optical lens sliding friction formula is big, it is easy stuck and bounce, this
Utility model provides a kind of optical lens zoom lens control device.
In order to solve the technical problem, the technical solution adopted in the utility model is：A kind of optical lens zoom lens control device,
Including lens barrel, the mobile mirror holder of the one or more being set in lens barrel, mobile mirror holder is coaxially disposed with lens barrel, is opened on mobile mirror holder
There is annular groove, the fixed spring that bending circularizes be installed on annular groove, multiple bearing installation positions are provided on annular groove,
Bearing is mounted on by fixed spring on bearing installation position, and bearing top circle is fitted closely with lens barrel inner wall.
Optical lens zoom lens control device described in the utility model is moved and is opened on mirror holder there are two annular groove, and two annulars are recessed
Slot is located at the both ends of mobile mirror holder.
Optical lens zoom lens control device described in the utility model, fixed spring are the non-closed annular of one end open.
Optical lens zoom lens control device described in the utility model, lens barrel are arranged with variable focal length cylindrical cam, variable focal length cylindrical cam outside
On be provided with cam path, mobile mirror holder is equipped with the guide rod to match with cam path, and lens barrel is connected with the electricity rotated with moving lens barrel
Machine.
Optical lens zoom lens control device described in the utility model, set on each annular groove there are three or three or more axis
It holds, bearing is distributed on annular groove in uniform circular.
Optical lens zoom lens control device described in the utility model, bearing top circle are fitted closely with lens barrel inner wall zero clearance.
The beneficial effects of the utility model：Bearing is arranged in the optical lens zoom lens control device of the utility model, makes mobile mirror holder
Rolling friction is become by sliding friction when being moved axially in lens barrel, efficiently reduces what mobile mirror holder moved in lens barrel
Frictional force so that the zooming procedure of mobile mirror holder is more steady, smooth, convenient for obtaining the imaging of high quality, avoids moving lens
The generation of the stuck and slight jumping phenomena of frame, the Zoom structure frictional force for solving current optical lens sliding friction formula is big,
The problem of being easy stuck and bounce, advantageous effect is notable, easy to utilize.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the broken away view of mobile mirror holder；
Fig. 3 is the structural schematic diagram of variable focal length cylindrical cam；
In figure：1, mobile mirror holder, 2, cam path, 3, guide rod, 4, variable focal length cylindrical cam, 5, bearing, 6, lens barrel, 7, electricity
Machine, 8, annular groove, 9, bearing installation position, 10, bearing, 11, fixed spring.
Specific implementation mode
The utility model is further described in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, a kind of optical lens zoom lens control device, including lens barrel 6, one or more moving of being set in lens barrel 6
Index glass frame 1, mobile mirror holder 1 are coaxially disposed with lens barrel 6, are provided with annular groove 8 on mobile mirror holder 1, are equipped on annular groove 8 curved
It is converted into the fixed spring 11 of annular, is provided with multiple bearing installation positions 9 on annular groove 8, bearing 10 is installed by fixed spring 11
On bearing installation position 9, and 10 outer circle of bearing is fitted closely with 6 inner wall of lens barrel.In the present embodiment, it is provided on 1 frame of moving lens
Two annular grooves 8, two annular grooves 8 are located at the both ends of mobile mirror holder 1.Fixed spring 11 is that the non-of one end open closes
Cyclization shape, bearing 10 are acted on by the tightening of fixed spring 11（Elastic force）In the bearing installation position 9 of annular groove 8.
It in the present embodiment, is set on each annular groove 8 there are three bearing 10, can also increase the number of bearing according to actual conditions
Amount, bearing 10 are distributed on annular groove 8 in uniform circular.
In the present embodiment, in order to increase the concentricity of mobile mirror holder 1 and lens barrel 6, between 6 inner wall zero of 10 outer circle of bearing and lens barrel
Gap fits closely.
In the present embodiment, it is arranged with variable focal length cylindrical cam 4 outside lens barrel 6, cam path 2 is provided on variable focal length cylindrical cam 4, it is mobile
Mirror holder 1 is equipped with the guide rod 3 to match with cam path 2, and guide rod 3 is extended to across lens barrel 6 in cam path 2, and lens barrel 6 connects
There is the motor 7 rotated with moving lens barrel 6.When work, motor 7 is rotated with moving lens barrel 6, and the mobile mirror holder 1 in lens barrel 6 follows mirror
Cylinder 6 rotates together, simultaneously as guide rod 3 is located in cam path 2, cam path 2 is axially extending along variable focal length cylindrical cam 4, mobile
Mirror holder 1 is also carried out along the axial sliding of lens barrel 6, to realize the operations such as zoom.The utility model increase on mobile mirror holder 1 by
Fixed spring 11 is fixed on the bearing 10 in annular groove 8, by sliding friction when mobile mirror holder 1 being made to be moved axially in lens barrel 6
Become rolling friction, efficiently reduce the frictional force that mobile mirror holder moves in lens barrel 6 so that the zoom of mobile mirror holder 1
Process is more steady, smooth, convenient for obtaining the imaging of high quality, avoids the stuck and slight jumping phenomena of mobile mirror holder 1
The problem of generation, the Zoom structure frictional force for solving current optical lens sliding friction formula is big, easy to be stuck and bounce, it is beneficial
Significant effect, it is easy to utilize.
Described above is only the basic principle and preferred embodiment of the utility model, and those skilled in the art are according to this reality
With the novel improvement and replacement made, belong to the scope of protection of the utility model.
Claims (6)
1. a kind of optical lens zoom lens control device, it is characterised in that：Including lens barrel, the one or more moving lens being set in lens barrel
Frame, mobile mirror holder are coaxially disposed with lens barrel, and annular groove is provided on mobile mirror holder, are equipped with what bending circularized on annular groove
Fixed spring is provided with multiple bearing installation positions on annular groove, and bearing is mounted on by fixed spring on bearing installation position, and
Bearing top circle is fitted closely with lens barrel inner wall.
2. optical lens zoom lens control device according to claim 1, it is characterised in that：Annular is recessed there are two being opened on mobile mirror holder
Slot, two annular grooves are located at the both ends of mobile mirror holder.
3. optical lens zoom lens control device according to claim 1, it is characterised in that：Fixed spring is that the non-of one end open closes
Cyclization shape.
4. optical lens zoom lens control device according to claim 1, it is characterised in that：It is convex it to be arranged with variable focal length cylindrical outside lens barrel
It takes turns, cam path is provided on variable focal length cylindrical cam, mobile mirror holder is equipped with the guide rod to match with cam path, and lens barrel is connected with band
The motor of moving lens barrel rotation.
5. according to Claim 1-3 any one of them optical lens zoom lens control device, it is characterised in that：On each annular groove
If there are three or three or more bearings, bearing be distributed in uniform circular on annular groove.
6. according to Claim 1-3 any one of them optical lens zoom lens control device, it is characterised in that：Bearing top circle and lens barrel
Inner wall zero clearance fits closely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721754500.XU CN207817289U (en) | 2017-12-15 | 2017-12-15 | A kind of optical lens zoom lens control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721754500.XU CN207817289U (en) | 2017-12-15 | 2017-12-15 | A kind of optical lens zoom lens control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207817289U true CN207817289U (en) | 2018-09-04 |
Family
ID=63331622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721754500.XU Active CN207817289U (en) | 2017-12-15 | 2017-12-15 | A kind of optical lens zoom lens control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207817289U (en) |
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2017
- 2017-12-15 CN CN201721754500.XU patent/CN207817289U/en active Active
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