CN202583575U - Automatic focusing structure for optical lens - Google Patents
Automatic focusing structure for optical lens Download PDFInfo
- Publication number
- CN202583575U CN202583575U CN201220094557.2U CN201220094557U CN202583575U CN 202583575 U CN202583575 U CN 202583575U CN 201220094557 U CN201220094557 U CN 201220094557U CN 202583575 U CN202583575 U CN 202583575U
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- Prior art keywords
- lens
- motor
- plane
- coil
- plane coil
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Abstract
An automatic focusing structure for an optical lens comprises a moving portion and a fixed portion. The moving portion includes a lens assembly and a plane coil connected therewith. The fixed portion includes a pedestal and a stator portion of a plane motor. The moving portion and the fixed portion are combined together via a linear guide rail so as to be move correspondingly. The plane coil is positioned in a magnetic field of the stator portion and is consistent with a linear motor and a voice coil motor in terms of working principle. Force for driving a process lens can be obtained through control of level and direction of current of the coil. A plane coil motor is adopted to serve as a performer to push the process lens. The plane coil motor has a simple structure, is capable of easily realizing a non-standard design, is connected with the process lens easily and directly, and exhibits excellent manufacturability in terms of processing and assembly. In particular, the plane coil allows a multi-layer printed circuit to be employed, and is mature in process, low in cost and easy in assembly.
Description
Technical field
The utility model belongs to the scanning imagery equipment of cylinder class, like optical draught machine, and laser photocomposing machine, directly the optical imaging system of platemaking machine is a kind of with load (process lens) and the highly integrated structural design of actuator (servomotor).
Background technology
In the platemaking equipment of scanning imagery class, in direct platemaking machine, focusing simultaneously proposes high requirement with the imaging multiplying power, generally will adopt focal length to follow the tracks of servomechanism, and the servo-actuated of promptly whole process lens assembly will have high dynamic response simultaneously in imaging surface.Generally adopt voice coil motor as actuator traditionally, can adopt nonstandard design, also can adopt the commodity voice coil motor.
If adopt nonstandard design, press traditional scheme, no matter then arrange at magnetic circuit, coil process, all non-easy thing in aspects such as integrated connection, especially when small serial production, perhaps process means is limited, the assembling difficulty, perhaps frock complex process, cost is expensive.
If adopt the commodity voice coil motor, then optional model is rare, and is generally the special designs of other purposes, and it is very very difficult structurally doing integrated the connection with process lens.Simultaneously also can increase quality of connection, influence dynamic quality.
The utility model content
The utility model adopts the planar coil motor to promote process lens as actuator.The planar coil electric machine structure is simple, realizes nonstandard design easily, and is simple and easy with being connected of process lens, and directly, and the manufacturability of processing and assembling is fabulous.Especially planar coil can adopt multilayer printed circuit, and technical maturity is with low cost, and assembling easily.
Concrete technical scheme is:
A kind of optical lens automatic focusing structure, it comprises motion parts and fixed part, motion parts comprises lens assembly and the planar coil that links together with it; Fixed part comprises pedestal; And the stationary part of planar motor; Combine through line slideway between motion parts and the fixed part; Therefore can relative motion, planar coil is in the magnetic field of stationary part, and its principle of work is consistent with the ultimate principle of linear electric motors, voice coil motor.The size and Orientation of control coil electric current can obtain driving the power of process lens.
Said stationary part comprises yoke and magnet steel, and said yoke has groove, is fixed with said magnet steel in the groove both sides.
Description of drawings
Fig. 1 is the utility model embodiment front elevation;
Fig. 2 is the utility model embodiment side view.
Wherein: 1, pedestal, 2, guide rail, 3, planar coil, 4, magnet steel, 5, yoke, 6, lens assembly.
Embodiment
Below through embodiment the utility model is described, should be noted that cited embodiment should not understand the restriction to utility model.
As shown in the figure: the motion parts of structure comprises lens assembly 6 and the planar coil 3 that links together with it; The fixed part of structure comprises pedestal 1, and the stationary part of planar motor, i.e. yoke 5 and magnet steel 4.Combine through line slideway 2 between two parts, therefore can relative motion.Planar coil 3 is in the magnetic field of stationary part, and its principle of work is consistent with the ultimate principle of linear electric motors, voice coil motor.The size and Orientation of control coil electric current can obtain driving the power of process lens.
Obviously; Foregoing is just in order to explain the characteristics of the utility model; And be not the restriction to the utility model, the variation that the those of ordinary skill in relevant technologies field is made in the corresponding techniques field according to the utility model should belong to the protection category of the utility model.
Claims (2)
1. optical lens automatic focusing structure, it is characterized in that: it comprises motion parts and fixed part, motion parts comprises lens assembly and the planar coil that links together with it; Fixed part comprises pedestal, and the stationary part of planar motor, combines through line slideway between motion parts and the fixed part, and planar coil is in the magnetic field of stationary part.
2. a kind of optical lens automatic focusing structure according to claim 1, its characteristic also is: said stationary part comprises yoke and magnet steel, said yoke has groove, is fixed with said magnet steel in the groove both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220094557.2U CN202583575U (en) | 2012-03-14 | 2012-03-14 | Automatic focusing structure for optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220094557.2U CN202583575U (en) | 2012-03-14 | 2012-03-14 | Automatic focusing structure for optical lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202583575U true CN202583575U (en) | 2012-12-05 |
Family
ID=47252975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220094557.2U Expired - Lifetime CN202583575U (en) | 2012-03-14 | 2012-03-14 | Automatic focusing structure for optical lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202583575U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772901A (en) * | 2016-12-27 | 2017-05-31 | 杭州东信光电科技有限公司 | Many precision camera lenses |
-
2012
- 2012-03-14 CN CN201220094557.2U patent/CN202583575U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106772901A (en) * | 2016-12-27 | 2017-05-31 | 杭州东信光电科技有限公司 | Many precision camera lenses |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: The cedar building industry in Guangdong province Shenzhen City Tairan 518000 Futian District Shatou Street Tairan Industrial Zone 5 floor A block 5C1 Patentee after: Shenzhen East space light Polytron Technologies Inc Address before: Fuyuan Baoan District Peace Village Fuyong town Shenzhen city Guangdong province 518054 road Hangsheng Industrial Park building B1 Patentee before: Shenzhen East Space Light Electronic Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
|
| CX01 | Expiry of patent term |