CN100401126C - Lens driver - Google Patents
Lens driver Download PDFInfo
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- CN100401126C CN100401126C CNB2004100177243A CN200410017724A CN100401126C CN 100401126 C CN100401126 C CN 100401126C CN B2004100177243 A CNB2004100177243 A CN B2004100177243A CN 200410017724 A CN200410017724 A CN 200410017724A CN 100401126 C CN100401126 C CN 100401126C
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- lens
- supports body
- collar extension
- lens supports
- front side
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- Expired - Fee Related
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Abstract
The present invention relates to a lens driving device which comprises cylindrical ring opening, a base, a magnet, a coil, a lens supporter, a front side spring, a back side spring, a small cap, a frame, a vertical direction limiting device and a rotary direction limiting device, wherein the base is used for positioning and assembling the ring opening; the magnet and the coil are arranged in the ring opening; the lens supporter is arranged at the inner circumferential side of the ring opening. The present invention is characterized in that the cross section of the ring opening is in a shape like the Chinese character 'ao', the coil is fixed to the outer circumferential part of the lens supporter, and the outer circumferential part of the lens supporter extends into the ring opening in the shape like the Chinese character 'ao' and moves in a ring opening gap in the shape like the Chinese character 'ao'. The front side spring and the back side spring which present a shape of an annular plate spring are arranged at the end part of the outer circumferential side and are fixedly connected with the ring opening; the end part of the inner circumferential side of the front side spring is fixed to the lens supporter by the small cap; the end part of the outer circumferential side of the front side spring is fixed to the ring opening by the frame; the vertical direction limiting device is arranged in a gap between the small cap and the frame; the rotary direction limiting device is arranged in a gap between the lens supporter and the ring opening. The present invention limits the movement of the lens supporter by the front and the back sides so that the present invention has bump resistance and shock resistance without adding components and assembly procedures, and consequently, the present invention has the advantage of practicability.
Description
Technical field
The present invention relates to a kind of lens driver, relate in particular to a kind of anti-lens driver that jolts with impact that is used for varifocal usefulness on the portable minicam.
Background technology
A kind of lens driver (to call patent document 1 in the following text) is disclosed on the Jap.P. 2002-23037 patent gazette, this lens driver is when coming the mobile lens supporter by the electromagnetic force of coil, after the lens supports body was inserted the logical axis of guide, the lens supports body is led to be moved.
Another lens driver (to call patent document 2 in the following text) is disclosed on 1999 No. 297064 (putting down into 11-297064 number) communique of Jap.P., this lens driver is between lens supports body and framework, and on the Zhou Fangxiang of lens supports body, being provided with a plurality of springs, the lens supports body supports by spring with respect to framework.
At the above-mentioned lens driver that is used on the portable type minicam, owing to people in actual use can be put this kind minicam to carry in people's pocket or the parcel and gone, so minicam is in carrying the way (during non-use), lens driver can be jolted or be impacted.
For so jolting or impacting, just as in the patent document 1 described lens driver, insert the structure of leading in the axis of guide for the lens supports body, not only to higher requirement be arranged to the diameter of axle precision of the inserting hole and the axis of guide, and because the cause of the set axis of guide, therefore increased the component count of product.
On the other hand, in patent document 2 described lens drivers, for the structure that the relative framework of lens supports body supports by spring, the lens supports body not only moves difficulty on direction of principal axis, and also has baroque problem.The structure that particularly like patent document 2 is such also has the difficult problem of lens driver assembling in minicam.
Summary of the invention
The object of the present invention is to provide a kind of lens driver, it can by utilize electromagnetic force be used for drive the lens supports body in the structure of optical axis direction, thereby make lens driver possess good anti-bumpiness and resistance to impact.
The object of the present invention is achieved like this:
A kind of lens driver comprises: collar extension cylindraceous; The base that provides collar extension to be located in and assemble; Be placed in magnetite and coil in the collar extension; Be arranged on the lensed lens supports body of its interior arrangement of all sides in the collar extension; Be characterized in:
Its cross section of described collar extension cylindraceous is the character cut in bas-relief shape, described magnetite coil is placed in concave shape collar extension inside, coil stationary is on the peripheral part of the lens supports body that is positioned at all sides of collar extension, the peripheral part of this lens supports body stretches in the concave shape collar extension, and moves in the concave shape gap of collar extension;
Described lens driver also comprises: a front side spring of leaf spring and a rear side spring in the form of a ring, and fixedly connected with collar extension in their outer circumferential side end; One small cap, this small cap is fixed on all side ends in the spring of front side on the lens supports body; One framework, this framework is fixed on spring outer circumferential side end, front side on the collar extension; Resist mutually in the precompression of front side spring and rear side spring by the electromagnetic force that behind coil electricity, is produced, order about the lens supports body and move to optical axis direction;
Described lens driver also comprises: be arranged between described small cap and the framework and prevent dislocation of lens supports body and the vertical direction restraint device that moves in the gap; Be arranged on the sense of rotation restraint device that the lens supports body misplaces and moves that prevents in the gap between described lens supports body and the collar extension.
In above-mentioned lens driver, wherein, described vertical direction restraint device is a plurality of front sides ribbed arch that is darted on the framework inner peripheral surface, in the gap of ribbed arch between small cap and framework, a plurality of front sides.
In above-mentioned lens driver, wherein, the described front side ribbed arch that is arranged on the framework inner peripheral surface is six, and six front side ribbed arches are uniformly-spaced setting by six five equilibriums on the circumferencial direction of framework inner peripheral surface.
In above-mentioned lens driver, wherein, described sense of rotation restraint device is to be darted at a plurality of rear side ribbed arches of the external side face of lens supports along the side line direction of cylinder, in the gap of a plurality of rear side ribbed arches between collar extension and lens supports body.
In above-mentioned lens driver, wherein, the described rear side ribbed arch that is arranged on the external side face of lens supports is six, and six rear side ribbed arches are uniformly-spaced setting by six five equilibriums on the circumferencial direction of the external side face of lens supports.
In above-mentioned lens driver, wherein, described sense of rotation restraint device also comprises, is arranged on the mosaic process on the inner peripheral surface of framework, and be arranged on the small cap outer peripheral face with the suitable chimeric recess of mosaic process; Mosaic process and chimeric recess limit lens supports body moving on sense of rotation mutually with chimeric, and formation allows that the lens supports body is axial mobile to lens light.
In above-mentioned lens driver, wherein, also comprise: one is arranged on the preceding square washer between spring outer circumferential side end, front side and the collar extension; One is fixedly installed on the back square washer between rear side spring peripheral end and the base basal part.
In above-mentioned lens driver, wherein, also comprise: one is installed in the sensor stand on the basal part of base.
Lens driver of the present invention makes it compared with prior art owing to adopted above-mentioned technical scheme, has following advantage and good effect:
1. the present invention is in order to prevent dislocation and mobile the be provided with sense of rotation restraint device of lens supports body in sense of rotation, promptly be provided with a plurality of and be embedded in the rear side ribbed arch in the gap between collar extension and the lens supports body at the outer peripheral face of lens supports body, jolt or when vibrating when going up in sense of rotation (promptly in the footpath direction that intersects with the lens axis direction) to produce, and be stored in after rear side between lens supports body and the collar extension helps arch to join, limited both relatively moving; Simultaneously, in order to prevent the lens supports body mobile vertical direction restraint device that is provided with in vertical direction, promptly be formed with on the inner peripheral surface of framework prominent establishing be provided with a plurality of and between framework and small cap a plurality of front sides ribbed arch in the gap, therefore can limit jolting or vibrate and shambling of causing in vertical direction;
2. therefore the present invention has good anti-rocking and resistance to impact because the both sides, front and back on the scioptics supporter optical axis direction are limited the dislocation of lens supports body and moved; Simultaneously, because the precision in the gap between lens supports body and collar extension is not had too high request, therefore just can make and on optical axis direction, do to lead mobile with respect to the lens supports body of collar extension by simple structure; In addition, owing to need not to increase number of components and parts, so simple and convenient assembly;
3. the present invention is owing to also form mosaic process on the inner peripheral surface of framework, on the small cap outer peripheral face, be provided with and the suitable chimeric recess of mosaic process, inlaying of mosaic process and chimeric recess, limited the rotation in a circumferential direction of lens supports body, can reach thus prevent the lens supports body sense of rotation promptly in the horizontal direction dislocation, move or shamble.
4. the present invention is because small cap on the lens supports body and the framework embedded structure by teat and recess, promptly need not increase product component and number of assembling steps, just can limit lens supports body moving in a circumferential direction, so because of simple in structure easy to assembly very practical.
Description of drawings
By the description of a following embodiment to lens driver of the present invention, can further understand purpose of the present invention, specific structural features and advantage in conjunction with its accompanying drawing.Wherein, accompanying drawing is:
Fig. 1 is lens driver of the present invention sectional structure synoptic diagram under the state before driving;
Fig. 2 is the decomposition texture synoptic diagram of lens driver shown in Figure 1;
Fig. 3 is the structural representation after lens driver middle frame parts shown in Figure 2 amplify;
Fig. 4 is the structural representation after the lens supports body amplifies in the lens driver shown in Figure 2;
Fig. 5 is the collar extension and the planar structure synoptic diagram that is mutually related after the lens supports body is connected in the lens driver shown in Figure 2;
Fig. 6 is the sectional structure synoptic diagram of lens driver under driving condition shown in Figure 1.
Embodiment
The present invention is a kind of lens driver that is applicable to the varifocal usefulness on the portable minicam.Accompanying drawing shown in the present is a kind of structural representation that is combined into the lens driver of the Zooming camera machine in the mobile phone.
See also illustrated in figures 1 and 2ly, their lens drivers of the present invention are the structural representation under the state (among Fig. 1, upper and lower side is respectively the front side and the rear side of lens driver) before driving.
Lens driver of the present invention comprises: collar extension 3 cylindraceous, the base 5 that provides collar extension 3 to be located in and to assemble, be placed in magnetite 13 and coil 15 in the collar extension 3, be arranged on the lens supports body 7 that is mounted with lens 20 in its of all sides in the collar extension 3, all side ends are in lens supports body 7 in fixing, fixedly (front side spring 9 is arranged on the lens axis direction front side in the lens supports body 7 in the front side of collar extension 3 spring 9 and rear side spring 11 in the outer circumferential side end, rear side spring 11 is arranged on lens axis direction rear side), the fixing small caps 24 of all side ends on lens supports body 7 in the front side spring 9; Fixedly the outer circumferential side end of front side spring 9 is in the framework 24 of collar extension 3.Lens driver of the present invention resists in the precompression of front side spring 9 and rear side spring 11 mutually by the electromagnetic force that is produced to coil 15 energising back, orders about lens supports body 7 and moves to optical axis direction.
Please in conjunction with Fig. 1 referring to shown in Figure 2, collar extension 3 its cross sections that are arranged on the base 5 are concave shape; Magnetite 13 is arranged on collar extension 3 inside of concave shape; Collar extension 3 inside at concave shape also are provided with coil 15, and this coil 15 is arranged on interior all sides of magnetite 13; Magnetite 13 is fixed on the base 5 by back square washer 17; Coil 15 is fixed on the peripheral part 7b of lens supports body 7, and meanwhile, the peripheral part 7b of lens supports body 7 enters in the concave shape collar extension 3, and the peripheral part 7b of lens supports body 7 just can move in the concave shape gap of concave shape collar extension 3 thus.
In addition, sensor stand 19 is installed on the basal part 5b of base 5.
Please in conjunction with Fig. 1 and Fig. 2 referring to Fig. 4 and shown in Figure 5, lens supports body 7 is arranged on interior all sides of collar extension 3, lens supports body 7 is cylindric, in lens supports body 7 positioned inside lens 20 is arranged, lens supports body 7 can arbitrarily move along the interior all side of optical axis in collar extension 3.
In order to prevent that lens supports body 7 is in the dislocation of sense of rotation with move, be provided with the sense of rotation restraint device, the present invention is at the outer peripheral face of lens supports body 7, side line direction along cylinder is provided with rear side ribbed arch 31, in lens supports body 7 is placed in collar extension 3 during all sides, is arranged on rear side ribbed arch 31 on lens supports body 7 cylinder outer walls and just is embedded in the gap between collar extension 3 and the lens supports body 7.In the present embodiment, rear side ribbed arch 31 is uniformly-spaced setting by six five equilibriums in a circumferential direction.Because rear side ribbed arch 31 is arranged on the side line direction of lens supports body 7 outer peripheral faces, the interior all sides that make the collar extension 3 that is the concave shape cross section tilt to the optical axis rear, and (internal diameter of all sides is different in the optical axis direction front and back collar extension 3 in, do not influence the useful effect of collar extension 3), this shows, the setting of rear side ribbed arch 31 has prevented that lens supports body 7 is in the dislocation of sense of rotation with move.
Please in conjunction with Fig. 1 and Fig. 2 referring to shown in Figure 3, it is on the lens supports body 7 that framework 23 is arranged on front side spring 9, and a small cap 24 is set on framework 23.Described framework 23 middle parts are cylindric, and framework 23 covers the front side that is fixed on base 5 behind front side peripheral part of lens supports body 7.
For prevent lens supports body 7 on sense of rotation promptly in the horizontal direction dislocation and move, be provided with the sense of rotation restraint device, the present invention is formed with mosaic process 33 (or claiming anti-rotation projection) on the inner peripheral surface of framework 23, meanwhile, chimeric recess 44 (or claiming anti-rotation recess) is set on small cap 24 outer peripheral faces; After the mosaic process 33 and chimeric recess 44 tablings on small cap 24 outer peripheral faces on framework 23 inner peripheral surfaces, limited lens supports body 7 rotation in a circumferential direction, can reach thus prevent lens supports body 7 sense of rotation promptly in the horizontal direction dislocation and move.
And,, be provided with the vertical direction restraint device in order to prevent lens supports body 7 moving in vertical direction; The present invention is formed with prominent a plurality of front sides ribbed arch 37 (seeing also Fig. 4 and Fig. 4) of establishing on the inner peripheral surface of framework 23, in the present embodiment, front side ribbed arch 37 is provided with 6, and each front side ribbed arch 37 is uniformly-spaced setting by six five equilibriums on the circumferencial direction of framework 23 inner peripheral surfaces; These front side ribbed arches 37 are darted in the small cap 22 and the gap between the framework 23 that is fixed on the lens supports body 7, this shows, being provided with of front side ribbed arch 37 limited lens supports body 7 moving in vertical direction.
See also illustrated in figures 1 and 2ly, rear side spring 11 is installed in the rear end of lens supports body 7.Rear side spring 11 and front side spring 9 are same shape leaf spring in the form of a ring, all side end 11a and outer circumferential side end 11b in having; Interior all side end 11a of rear side spring 11 are fixed on the rear end of lens supports body 7; The outer circumferential side end 9b of rear side spring 11 then is fixed between the basal part 5b and back square washer 17 of base 5.
Be smooth under above-mentioned front side spring 9 and rear side spring 11 state of nature (state that does not promptly have the load of applying) before assembling; But after assembling, interior all side end 9a of front side spring 9 are positioned at the anterior position of outer circumferential side end 9b, interior all side end 11a of rear side spring 11 are positioned at the anterior position of outer circumferential side end 11b, that is, front side spring 9 and rear side spring 11 are to install under a kind of state of deformation.Thus, according to the restoring force (being precompression) of spring, interior all side end 9a of front side spring 9, interior all side end 11a of rear side spring 11 with regard to the time be carved with a precompression and playing effect towards base 5 basal part 5b one side.
The installation procedure of lens driver of the present invention and action principle and effect thereof are as follows:
The program of installing is:
A is fixed on assembling on the lens supports body 7 to interior all side end 11a of rear side spring 11 earlier exactly;
B is fixed on magnetite 13 in the collar extension 3, will comprise lens 20 at interior lens supports body 7 and be placed in coil 15 on the lens supports body 7 and inside that rear side spring 11 fits into collar extension 3;
C fixedly installs back square washer 17 on the basal part 5b of base 5;
D puts into base 5 with the collar extension 3 after the assembling, and is fixed between basal part 5b and the back square washer 17 by the peripheral end 11b that will be fixedly installed on the rear side spring 11 on the lens supports body 7 in the collar extension 3, and collar extension 3 is fixedly installed in the base 5;
E is written into interior all side end 9a of front side spring 9 between the collar extension 3 after pad 21 and the assembling forwardly, and passes through small cap 24 and fixed, and promptly interior all side end 9a clampings of front side spring 9 are between lens supports body 7 and small cap 24;
F is installed in framework 23 on the base 5 (being small cap 24), and by the fixing outer circumferential side end 9b of front side spring 9 of framework 23;
G is installed in sensor stand 19 on the basal part 5b of base 5 at last; So finished the assembly working of lens driver.
After lens driver assembling, by 15 energisings of the coil in being assembled in lens driver, the effect of the electromagnetic force that is produced at coil 15 makes lens supports body 7 move to optical axis direction with respect to collar extension 3.Though between lens supports body 7 and collar extension 3, produce the gap, in the side of the front and back of lens supports body 7, when going up to produce, horizontal direction (i.e. the footpath direction that intersects with lens axis) jolts and when vibrating, owing on lens supports body 7 cylinder outer walls, be provided with a plurality of rear side ribbed arches 31, these rear side ribbed arches 31 are between lens supports body 7 and collar extension 3, jolting and vibrating to make rear side ribbed arch 31 and collar extension 3 inwalls connect, thereby has limited lens supports body 7 and collar extension 3 relatively moving to optical axis direction; Equally, front side at lens supports body 7, though between small cap 24 and framework 23, have in the gap, because a plurality of front sides ribbed arch 37 that framework 23 inner peripheral surfaces are provided with, these front side ribbed arches 37 are darted in the gap between small cap 22 and the framework 23, and being provided with of front side ribbed arch 37 limited lens supports body 7 shakiness of shaking of jolting and vibrating and being produced in vertical direction.
Please in conjunction with Fig. 1 and Fig. 2 referring to shown in Figure 6, in case coil 15 energisings in being assembled in lens driver, the effect of the effect electromagnetic force by the electromagnetic force that produced at coil 15, lens supports body 7 forwards moves by a certain amount of, and the focal length of lens is regulated.
Above-described only is the situation of one embodiment of the invention, and the present invention is not limited to the example of the foregoing description, only otherwise breaking away from purport of the present invention can do all modal changes.
Such as, the shape of the rear side ribbed arch 31 on the front side ribbed arch 37 on framework 23 inner peripheral surfaces, lens supports body 7 cylinder outer walls, the mosaic process 33 on framework 23 inner peripheral surfaces and the chimeric recess 44 on small cap 24 outer peripheral faces is also unrestricted, can do all changes;
And for example, the front side ribbed arch 37 on framework 23 inner peripheral surfaces also can be formed among the small cap 24.In sum, lens driver of the present invention is owing to be provided with the rear side ribbed arch and form the front side ribbed arch on the framework inner peripheral surface by the outer peripheral face at the lens supports body, the dislocation that restriction lens supports body is set of rear side ribbed arch and front side ribbed arch and mobile; And,, further prevent shambling of lens supports body, and give its good anti-rocking and impact resistance owing to embedded structure is set at framework inner peripheral surface and small cap outer peripheral face; Simultaneously, the present invention is not owing to have too high request to the precision in the gap between lens supports body and collar extension, therefore just can make by simple structure does to lead mobile on optical axis direction with respect to the lens supports body of collar extension, by the teat of small cap and framework and the embedded structure of recess, promptly need not increase product component and number of assembling steps, just can limit moving of lens supports body; The present invention need not to increase the parts and the number of assembling steps of product, and because of simple in structure easy to assembly very practical.
Claims (6)
1. a lens driver comprises: collar extension cylindraceous (3); The collar extension base that (3) are located in and are assembled (5) is provided; Be placed in magnetite (13) and coil (15) in the collar extension (3); Be arranged on the lens supports body (7) that is mounted with lens (20) in its of all sides in the collar extension (3);
It is characterized in that:
Its cross section of described collar extension cylindraceous (3) is the character cut in bas-relief shape, described magnetite (13) and coil (15) are placed in concave shape collar extension (3) inside, coil (15) is fixed on the peripheral part (7b) of the lens supports body (7) that is positioned at all sides of collar extension (3), this lens supports body (7) peripheral part (7b) stretches in the concave shape collar extension (3), and moves in the concave shape gap of collar extension (3);
Described lens driver (1) also comprises:
A front side spring (9) of leaf spring and a rear side spring (11) in the form of a ring, their outer circumferential side end (9b and 11b) fixedlys connected with collar extension (3);
One small cap (24), this small cap (24) is fixed on all side ends (9a) in the front side spring (9) on the lens supports body (7);
One framework (23), this framework (23) is fixed on front side spring (9) outer circumferential side end (9b) on the collar extension (3); Resist mutually in the precompression of front side spring (9) and rear side spring (11) by the electromagnetic force that is produced to coil (15) energising back, order about lens supports body (7) and move to optical axis direction;
Described lens driver (1) also comprises:
What be provided with in the gap between described small cap and framework prevents that lens supports body (7) from misplacing and mobile vertical direction restraint device;
What be provided with in the gap between described lens supports body and collar extension prevents that lens supports body (7) from misplacing and mobile sense of rotation restraint device;
Wherein, described vertical direction restraint device comprises and is darted on described framework (23) inner peripheral surface or is darted at a plurality of front sides ribbed arches (37) on described small cap (24) outer peripheral face that described sense of rotation restraint device comprises a plurality of rear side ribbed arches (31) that are darted at lens supports body (7) outer peripheral face.
2. lens driver as claimed in claim 1, it is characterized in that: the described a plurality of front sides ribbed arches (37) that are darted on described framework (23) inner peripheral surface are six, and six front side ribbed arches (37) are uniformly-spaced setting by six five equilibriums on the circumferencial direction of framework (23) inner peripheral surface.
3. lens driver as claimed in claim 1, it is characterized in that: the described a plurality of rear side ribbed arches (31) that are darted on lens supports body (7) outer peripheral face are six, and six rear side ribbed arches (31) are uniformly-spaced setting by six five equilibriums on the circumferencial direction of lens supports body (7) outer peripheral face.
4. lens driver as claimed in claim 1, it is characterized in that: described sense of rotation restraint device also comprises, be arranged on the mosaic process (33) on the inner peripheral surface of framework (23), and be arranged on small cap (24) outer peripheral face with the suitable chimeric recess (44) of mosaic process (33); Mosaic process (33) and chimeric recess (44) limit lens supports body (7) moving on sense of rotation mutually with chimeric, and formation allows that lens supports body (7) is axial mobile to lens light.
5. lens driver as claimed in claim 1 is characterized in that also comprising:
One is arranged on the preceding square washer (21) between front side spring (9) outer circumferential side end (9b) and the collar extension (3);
One is fixedly installed on the back square washer (17) on base (5) basal part (5b), and described rear side spring (11) peripheral end (11b) is fixed between described basal part (5b) and the described back square washer (17).
6. lens driver as claimed in claim 1 is characterized in that also comprising: one is installed in the sensor stand (19) on the basal part (5b) of base (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100177243A CN100401126C (en) | 2004-04-16 | 2004-04-16 | Lens driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100177243A CN100401126C (en) | 2004-04-16 | 2004-04-16 | Lens driver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1683946A CN1683946A (en) | 2005-10-19 |
| CN100401126C true CN100401126C (en) | 2008-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100177243A Expired - Fee Related CN100401126C (en) | 2004-04-16 | 2004-04-16 | Lens driver |
Country Status (1)
| Country | Link |
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| CN (1) | CN100401126C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008052196A (en) * | 2006-08-28 | 2008-03-06 | Alps Electric Co Ltd | Lens driving unit |
| JP2008122470A (en) * | 2006-11-08 | 2008-05-29 | Nidec Sankyo Corp | Lens driving device and its manufacturing method |
| CN100582844C (en) * | 2006-12-15 | 2010-01-20 | 富准精密工业(深圳)有限公司 | Built-in optical focusing lens structure |
| JP2008197311A (en) * | 2007-02-13 | 2008-08-28 | Alps Electric Co Ltd | Lens drive device |
| CN101038361A (en) * | 2007-04-27 | 2007-09-19 | 金仁召 | Lens driving device |
| JP2009210897A (en) * | 2008-03-05 | 2009-09-17 | Mitsumi Electric Co Ltd | Leaf spring, lens drive mechanism, and method of manufacturing leaf spring |
| JP2010061030A (en) * | 2008-09-05 | 2010-03-18 | Nidec Sankyo Corp | Lens drive device |
| JP2010066287A (en) * | 2008-09-08 | 2010-03-25 | Nidec Sankyo Corp | Magnetic device and lens drive device |
| KR101081630B1 (en) * | 2009-11-20 | 2011-11-09 | 엘지이노텍 주식회사 | Voice coil motor |
| JP5574292B2 (en) * | 2010-07-07 | 2014-08-20 | 新シコー科技株式会社 | Lens drive device, autofocus camera and mobile terminal with camera |
| CN104849832B (en) * | 2015-05-19 | 2017-06-09 | 苏州久易光电科技有限公司 | A kind of high stability voice coil motor driven for lens |
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|---|---|---|---|---|
| US4472024A (en) * | 1981-01-07 | 1984-09-18 | Olympus Optical Co. Ltd. | Apparatus for driving objective lens |
| JPH1172693A (en) * | 1997-08-29 | 1999-03-16 | Canon Inc | Lens driving device for camera |
| CN1407388A (en) * | 2001-09-06 | 2003-04-02 | 奥林巴斯光学工业株式会社 | Lens tube |
| JP2003149529A (en) * | 2001-11-13 | 2003-05-21 | Shicoh Eng Co Ltd | Lens driving unit |
| JP2003207708A (en) * | 2002-01-11 | 2003-07-25 | Shicoh Eng Co Ltd | Lens driving unit |
| JP2003295033A (en) * | 2002-04-02 | 2003-10-15 | Shicoh Eng Co Ltd | Lens driving device |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4472024A (en) * | 1981-01-07 | 1984-09-18 | Olympus Optical Co. Ltd. | Apparatus for driving objective lens |
| JPH1172693A (en) * | 1997-08-29 | 1999-03-16 | Canon Inc | Lens driving device for camera |
| CN1407388A (en) * | 2001-09-06 | 2003-04-02 | 奥林巴斯光学工业株式会社 | Lens tube |
| JP2003149529A (en) * | 2001-11-13 | 2003-05-21 | Shicoh Eng Co Ltd | Lens driving unit |
| JP2003207708A (en) * | 2002-01-11 | 2003-07-25 | Shicoh Eng Co Ltd | Lens driving unit |
| JP2003295033A (en) * | 2002-04-02 | 2003-10-15 | Shicoh Eng Co Ltd | Lens driving device |
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| Publication number | Publication date |
|---|---|
| CN1683946A (en) | 2005-10-19 |
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