CN103185946A - Automatic focus lens module - Google Patents
Automatic focus lens module Download PDFInfo
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- CN103185946A CN103185946A CN2011104501388A CN201110450138A CN103185946A CN 103185946 A CN103185946 A CN 103185946A CN 2011104501388 A CN2011104501388 A CN 2011104501388A CN 201110450138 A CN201110450138 A CN 201110450138A CN 103185946 A CN103185946 A CN 103185946A
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- eyeglass
- lens module
- arms
- projection
- sides
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Abstract
An automatic focus lens module comprises a basal plate, a plurality of guiding pieces, a piezoelectric driving piece, an active plate, a lens, a lens clamping piece, an elastic abutting piece and an outer cap. The lens clamping piece is movably connected with the guiding pieces and presses the active plate through the elastic bunting piece, and the active plate presses the piezoelectric driving piece through the active plate. A plurality of first protrusions are formed on the surface, opposite to the lens clamping piece, of the active plate, and a plurality of second protrusions are formed on the surface, opposite to the active plate, of the lens clamping piece. The first protrusions and the second protrusions are arranged along a circumference, heights of the first protrusions decrease progressively along a scheduled clockwise direction, heights of the second protrusions increase progressively along the same scheduled clockwise direction, and each first protrusion is respectively contacted with the corresponding second protrusion.
Description
Technical field
The present invention relates to a kind of camera lens module, relate in particular to a kind of autofocus lens module.
Background technology
Along with the progress of science and technology, most electronic equipments all have image unit, and are development trend with compact.And the slimming of electronic equipment mainly is subject to the overall length of the camera lens module of image unit, if this camera lens module has automatic focus function concurrently, eyeglass moved required space when then electronic equipment also need be reserved focusing.
Yet the more and complex structure of the spare part of existing autofocus lens module has increased volume and the overall length of autofocus lens module undoubtedly.In addition, the general mobile whole lens set of previous autofocus lens module is focused, so the camera lens module need reserve bigger mobile space for lens set, and this has limited the further slimming of autofocus lens module.
Summary of the invention
In view of this, be necessary to provide a kind of simple in structure and compact autofocus lens module.
A kind of autofocus lens module, it comprises that a substrate, a plurality of guide member that fixedly installs with respect to described substrate, one are fixedly set in Piezoelectric Driving part on the described substrate, one and are arranged at active plate on the described Piezoelectric Driving part, eyeglass, one and seize described eyeglass on both sides by the arms and can flexibly support part and an enclosing cover that is covered on the described substrate along what the eyeglass of described guide member setting seized that part, one flexibly support that described eyeglass seizes part on both sides by the arms on both sides by the arms.Described eyeglass is seized part on both sides by the arms and is compressed described active plate by the described part that flexibly supports, and described active plate compresses described Piezoelectric Driving part by described active plate.Described Piezoelectric Driving part is used for driving described active plate and rotates.Described active plate and described eyeglass are seized the part facing surfaces on both sides by the arms and are formed with a plurality of first projectioies, and part seized on both sides by the arms by described eyeglass and described active plate facing surfaces forms a plurality of second projectioies corresponding to described first projection.Described first projection and described second projection are all along circumferential arrangement, and the height of described first projection successively decreases along a predetermined clockwise, and the height of described second projection increases progressively along same clockwise.Described active plate is when should predetermined clockwise rotating, and described first projection is repelled mutually with described second projection, make described eyeglass seize on both sides by the arms part along the optical axis of described eyeglass away from described substrate.
With respect to prior art, described autofocus lens module drives described eyeglass with described piezo-electric motor and described active plate and seizes part on both sides by the arms and focus, and it is simple in structure, assembling is easy.In addition, because the mobile monolithic eyeglass that passes through of described autofocus lens module is focused, the eyeglass mobile space of therefore focusing required is reduced, and makes that described autofocus lens module is more compact, is conducive to autofocus lens module Jin Yi Walk miniaturization.
Description of drawings
Fig. 1 is the STRUCTURE DECOMPOSITION figure of autofocus lens module of the present invention.
Fig. 2 is the stereographic map after the autofocus lens module assembling of Fig. 1 is finished.
Fig. 3 is the cut-open view along III-III of the autofocus lens module of Fig. 2.
The main element symbol description
| The |
100 |
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| The Piezoelectric Driving part | 30 |
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| Eyeglass is seized part on both sides by the |
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611 |
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| Fixed |
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| Draw-in |
64 |
| Enclosing |
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| Receiving space | 701 |
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| Through |
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| Flexibly support |
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| Elastic |
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| Position detecting spare | 90 |
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Following embodiment will further specify the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Below in conjunction with accompanying drawing the present invention being done one specifically introduces.
See also Fig. 1 to Fig. 3, be depicted as the structural drawing of autofocus lens module 100 of the present invention, described autofocus lens module 100 comprises that a substrate 10, a plurality of guide member 20, a Piezoelectric Driving part 30, an active plate 40,50, one eyeglasses of an eyeglass seize part 60 and an enclosing cover 70 on both sides by the arms.
Described substrate 10 comprises the second surface 12 that a first surface 11 and and described first surface 11 are opposing in the form of a ring.Described substrate 10 is made by hard material, for example pottery or resin material etc.Described substrate 10 is provided with for the P.e.c. (not shown) that is electrically connected electronic package.
Described each guide member 20 is cylindric, comprise first end 21 and one and described first end 21 from second end 22.Described first end 21 is fixed in the first surface 11 of described substrate 10, described second end 22 along perpendicular to the direction of described first surface 11 away from described first surface 11.In the present embodiment, the quantity of described guide member 20 is three, and evenly is connected in the first surface 11 of described substrate 10.Certainly, the quantity of described guide member 20 is not limited to three.
Described Piezoelectric Driving part 30 is used for driving described active plate 40 and rotates.This Piezoelectric Driving part 30 comprises a plurality of piezo-electric motors 31 and a driving chip 32 that is electrically connected with described piezo-electric motor 31.Described piezo-electric motor 31 is fixedly set in the first surface 11 of described substrate 10, and in the present embodiment, described piezo-electric motor is pasted on described first surface 11.Described piezo-electric motor 31 is arranged in described first surface 11 along the circumferencial direction that with described substrate 10 centers is the center of circle.Described driving chip 32 is fixed on the second surface 12 of described substrate 10, is used for the action of the described piezo-electric motor 31 of control.Described driving chip 32 and described piezo-electric motor 31 are electrically connected mutually by described substrate 10.In other embodiments, described driving chip 32 also can be arranged at the first surface 11 of described substrate 10.
Described active plate 40 comprises the upper surface 42 that a lower surface 41 and and described lower surface 41 are opposing in the form of a ring.The upper surface 42 of described active plate 40 is formed with a plurality of first projectioies 421, and described first projection 421 is arranged along the circumferencial direction that is the center of circle with these active plate 40 centers.Described each first projection 421 all is the arcuation corresponding with its place circumference, and the gradual change along the circumferential direction of the height of described each first projection 421.In the present embodiment, the quantity of described first projection 421 is three, and the height of described each first projection 421 along the circumferential direction successively decreases in counterclockwise mode.The quantity that is appreciated that described first projection 421 is not limited to three.
Described active plate 40 is arranged on described substrate 10 tops, and the lower surface 41 of this active plate 40 is resisted against on the described piezo-electric motor 31.
Described eyeglass 50 comprises that an optics portion 51 and one are positioned at the fixed part 52 of described optics portion 51 peripheries.In the present embodiment, described optics portion 51 and described fixed part 52 are one-body molded.
Described eyeglass is seized part 60 on both sides by the arms in the form of a ring, is used for seizing described eyeglass 50 on both sides by the arms and drives the action of focusing of described eyeglass 50.Described eyeglass is seized second side 62 and fixed orifice 63 that runs through described first side 61 and described second side 62 that part 60 comprises that first side 61, and described first side 61 are opposing on both sides by the arms.Form a plurality of second projectioies 611 corresponding to described first projection 421 on described first side 61.Described second projection 611 is along seizing the circumferencial direction arrangement that part 60 centers are the center of circle on both sides by the arms with this eyeglass, described each second projection 611 all is the arcuation corresponding with its place circumference, and the gradual change along the circumferential direction of the height of described each second projection 611.In the present embodiment, the height of described each second projection 611 along the circumferential direction increases progressively in counterclockwise mode.Described fixed orifice 63 is used for accommodating fixing described eyeglass 50, and wherein, the fixed part 52 of described eyeglass 50 is fixed in described eyeglass seizes on both sides by the arms on the sidewall of the described fixed orifice of part 60 formation.The periphery that described eyeglass is seized part 60 on both sides by the arms offers a plurality of draw-in grooves 64 corresponding to described guide member 20, and described draw-in groove 64 is uniformly distributed in and seizes part 60 centers on both sides by the arms with described eyeglass is on the circumference in the center of circle.In the present embodiment, described draw-in groove 64 is semicircle.
Described eyeglass is seized part 60 on both sides by the arms can be arranged at described active plate 40 tops slidably along this guide member 20, and wherein, described guide member 20 snaps in respectively in the corresponding draw-in groove 64.Described second projection 611 is relative with described first projection 421 respectively, each second projection 611 has high height one end aims at the first corresponding projection 421 and has lower height one end, and has lower height one end and aim at the first corresponding projection 421 and have high height one end.
Described enclosing cover 70 comprises a top board 71 and a side plate 72 that links to each other with described top board 71.Described top board 71 central parts offer a light hole 711 and a plurality of through hole 712 corresponding to described guide member 20.Described side plate 72 is tubular.Receiving space 701 of described side plate 72 and described top board 71 common formation.Described enclosing cover 70 is covered on the described substrate, makes described piezo-electric motor 31, described active plate 40, described eyeglass 50, described eyeglass seize part 60 on both sides by the arms and is positioned at described receiving space 701.The ora terminalis of described side plate 72 is fixed on the first surface 11 of described substrate 10, and second end, the 22 self-corresponding through holes 712 of described guide member 20 pass described enclosing cover 70.
Described autofocus lens module 100 comprises that flexibly supports a part 80, this flexibly supports part and is used for providing described eyeglass to seize that part compresses described active plate and described active plate compresses the precompression of described piezo-electric motor on both sides by the arms, and provides described eyeglass to seize the restoring force of part 60 on both sides by the arms.The described part 80 that flexibly supports comprises first feet 81, second feet 82 and an elastic joint part 83 that connects described first feet 81 and described second feet 82.Described first feet 81, described second feet 82 and described elastic joint part 83 are Z-shaped and interconnect.Described first feet 81 is fixed in top board 71 inside surfaces of described enclosing cover 70, and described second feet 82 is held in the upper surface that described eyeglass is seized part 60 on both sides by the arms.
Described autofocus lens module 100 also comprises a position detecting spare 90, is used for the position of the described eyeglass 50 of detecting and will detects the result being fed back to described driving chip 32.Described position detecting spare 90 comprise a magnet 91 and a Hall subassembly 92.Described magnet 91 is fixedly set in the lower surface that described eyeglass is seized part 60 on both sides by the arms, and described Hall subassembly 92 is fixedly set in the first surface of described substrate 10, and described magnet 91 and described Hall subassembly 92 are arranged along the direction that is parallel to eyeglass 50 optical axises.
Described autofocus lens module 100 is when focusing, described driving chip 32 controls pass to electric current to described piezo-electric motor 31, described piezo-electric motor 31 produces deformation and drives described active plate 40 and clockwise rotates under the described function of current, described active plate 40 is in rotation process, 611 motions of described relatively second projection of described first projection 421, because the height of described first projection 421 and described second projection 611 is all along the direction of motion gradual change, therefore described first projection 421 is oppressed described second projection 611 gradually at motion process, make described eyeglass seize part 60 on both sides by the arms and do moving away from described substrate 10 along described guide member 20, described eyeglass 50 is seized part 60 on both sides by the arms with described eyeglass and is moved, and reaches the function of focusing.In above-mentioned focus process, the described elastic deformation that flexibly supports part 80 generation Jin Yi Walk.In addition, described magnet 91 forms a magnetic field around described Hall subassembly 92 forms, when described eyeglass is seized part 60 on both sides by the arms when motionless, the magnetic field intensity of described Hall subassembly 92 surrounding magnetic fields is also constant, when described eyeglass is seized part 60 on both sides by the arms when driving described magnet 91 motions, magnetic field intensity around the described Hall subassembly 92 also with variation, therefore described Hall subassembly 92 can detect the position message of described eyeglass 50 according to change of magnetic field strength, in focus process, the detecting result of described Hall subassembly 92 can provide the reference of driving amount for described driving chip 32.
When not needing to focus, described driving chip 32 stops to provide electric current to described piezo-electric motor 31, the distortion of described piezo-electric motor 31 is replied, and the described active plate 40 of drive counterclockwise rotates in Recovery Process, simultaneously, described eyeglass seize on both sides by the arms part 60 at the described described guide member 20 in effect lower edge of part 80 that flexibly supports to described substrate motion.
Described autofocus lens module drives described eyeglass with described piezo-electric motor and described active plate and seizes part on both sides by the arms and focus, and it is simple in structure, assembling is easy.In addition, because the mobile monolithic eyeglass that passes through of described autofocus lens module is focused, the eyeglass mobile space of therefore focusing required is reduced, and makes that described autofocus lens module is more compact, is conducive to autofocus lens module Jin Yi Walk miniaturization.
In addition, those skilled in the art also can do other variation in spirit of the present invention, and certainly, the variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.
Claims (10)
1. autofocus lens module, comprise a substrate, a plurality of guide members that fixedly install with respect to described substrate, a Piezoelectric Driving part that is fixedly set on the described substrate, an active plate that is arranged on the described Piezoelectric Driving part, an eyeglass, seize described eyeglass on both sides by the arms and can seize part on both sides by the arms along the eyeglass of described guide member setting for one, one flexibly support that described eyeglass seizes part on both sides by the arms flexibly support part and an enclosing cover that is covered on the described substrate, described eyeglass is seized part on both sides by the arms and is compressed described active plate by the described part that flexibly supports, described active plate is used for compressing described Piezoelectric Driving part, described Piezoelectric Driving part is used for driving described active plate and rotates, described active plate and described eyeglass are seized the part facing surfaces on both sides by the arms and are formed with a plurality of first projectioies, part seized on both sides by the arms by described eyeglass and described active plate facing surfaces forms a plurality of second projectioies corresponding to described first projection, described first projection and described second projection are all along circumferential arrangement, the height of described first projection successively decreases along a predetermined clockwise, and the height of described second projection increases progressively along same clockwise, when the clockwise rotation should be scheduled in described active plate edge, described first projection is mutually repelled with described second projection, make described eyeglass seize on both sides by the arms part along the optical axis of described eyeglass away from described substrate.
2. autofocus lens module as claimed in claim 1, it is characterized in that: described each guide member all perpendicular to described substrate surface and comprise first end respectively and one with described first end from second end, described first end is fixed in the surface of described substrate.
3. autofocus lens module as claimed in claim 1, it is characterized in that: described Piezoelectric Driving part comprises a plurality of piezo-electric motors and a driving chip that is electrically connected with described piezo-electric motor, and described piezo-electric motor is fixedly set in described substrate surface and described piezo-electric motor end face pastes mutually with described active plate.
4. autofocus lens module as claimed in claim 3 is characterized in that: described piezo-electric motor is arranged in described substrate surface along the circumferencial direction that with described substrate center is the center of circle.
5. autofocus lens module as claimed in claim 1 is characterized in that: described each first projection and described second projection all are the arcuation corresponding with its place circumference.
6. autofocus lens module as claimed in claim 1, it is characterized in that: described eyeglass is seized the part periphery on both sides by the arms and is offered a plurality of draw-in grooves corresponding to described guide member, and described guide member snaps in respectively in the corresponding draw-in groove.
7. autofocus lens module as claimed in claim 1, it is characterized in that: described enclosing cover comprises a top board and a side plate that links to each other with described top board, described side plate and substrate are fixedly linked, described top board central part offers a light hole and a plurality of through hole corresponding to described guide member, and described guide member passes described enclosing cover away from the self-corresponding through hole of an end of described substrate.
8. autofocus lens module as claimed in claim 1, it is characterized in that: the described part that flexibly supports comprises first feet, second feet and an elastic joint part that connects described first feet and described second feet, described first feet is fixed in described outer covering, and described second feet is held in described eyeglass and seizes part on both sides by the arms.
9. autofocus lens module as claimed in claim 1, it is characterized in that: described autofocus lens module comprises a position detecting spare, described position detecting spare is used for the position of the described eyeglass of detecting, and will detect the result and be fed back to described driving chip.
10. autofocus lens module as claimed in claim 9, it is characterized in that: described position detecting spare comprises a magnet and a Hall subassembly, described magnet is fixedly set in described eyeglass and seizes on both sides by the arms on the part, described Hall subassembly is fixedly set on the described substrate, and described magnet and described Hall subassembly are arranged along the direction that is parallel to described lens light axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104501388A CN103185946A (en) | 2011-12-29 | 2011-12-29 | Automatic focus lens module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104501388A CN103185946A (en) | 2011-12-29 | 2011-12-29 | Automatic focus lens module |
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| Publication Number | Publication Date |
|---|---|
| CN103185946A true CN103185946A (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104501388A Pending CN103185946A (en) | 2011-12-29 | 2011-12-29 | Automatic focus lens module |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739053A (en) * | 2016-04-01 | 2016-07-06 | 河南省皓泽电子有限公司 | Closed loop double drive automatic focusing device used by double cameras |
| CN105739054A (en) * | 2016-04-01 | 2016-07-06 | 河南省皓泽电子有限公司 | Closed loop single drive automatic focusing device used by double cameras |
| CN106647107A (en) * | 2015-11-03 | 2017-05-10 | 三星电机株式会社 | Camera module |
| CN111077628A (en) * | 2020-01-03 | 2020-04-28 | 睿恩光电有限责任公司 | Piezoelectric lens driving device, camera device, and electronic apparatus |
| CN112616005A (en) * | 2020-12-30 | 2021-04-06 | 维沃移动通信有限公司 | Camera module and electronic equipment |
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| CN1743887A (en) * | 2004-09-02 | 2006-03-08 | 三星电机株式会社 | Lens-positioning device of camera module |
| CN101153949A (en) * | 2006-09-29 | 2008-04-02 | 鸿富锦精密工业（深圳）有限公司 | Camera module group and portable electronic device |
| TW200817828A (en) * | 2006-10-14 | 2008-04-16 | Ind Tech Res Inst | Piezoelectricity-driving optical lens |
| US20080137214A1 (en) * | 2006-12-07 | 2008-06-12 | Industrial Technology Research Institute | Piezoelectricity-driving optical lens module |
| TW201133052A (en) * | 2010-03-29 | 2011-10-01 | Sony Corp | Lens drive device, lens module, and image pickup device |
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2011
- 2011-12-29 CN CN2011104501388A patent/CN103185946A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1743887A (en) * | 2004-09-02 | 2006-03-08 | 三星电机株式会社 | Lens-positioning device of camera module |
| CN101153949A (en) * | 2006-09-29 | 2008-04-02 | 鸿富锦精密工业（深圳）有限公司 | Camera module group and portable electronic device |
| TW200817828A (en) * | 2006-10-14 | 2008-04-16 | Ind Tech Res Inst | Piezoelectricity-driving optical lens |
| US20080137214A1 (en) * | 2006-12-07 | 2008-06-12 | Industrial Technology Research Institute | Piezoelectricity-driving optical lens module |
| TW201133052A (en) * | 2010-03-29 | 2011-10-01 | Sony Corp | Lens drive device, lens module, and image pickup device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647107A (en) * | 2015-11-03 | 2017-05-10 | 三星电机株式会社 | Camera module |
| CN105739053A (en) * | 2016-04-01 | 2016-07-06 | 河南省皓泽电子有限公司 | Closed loop double drive automatic focusing device used by double cameras |
| CN105739054A (en) * | 2016-04-01 | 2016-07-06 | 河南省皓泽电子有限公司 | Closed loop single drive automatic focusing device used by double cameras |
| CN111077628A (en) * | 2020-01-03 | 2020-04-28 | 睿恩光电有限责任公司 | Piezoelectric lens driving device, camera device, and electronic apparatus |
| CN112616005A (en) * | 2020-12-30 | 2021-04-06 | 维沃移动通信有限公司 | Camera module and electronic equipment |
| CN112616005B (en) * | 2020-12-30 | 2022-05-20 | 维沃移动通信有限公司 | Camera module and electronic equipment |
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