CN102375208A - Lens driving device, automatic focusing camera and mobile terminal device - Google Patents
Lens driving device, automatic focusing camera and mobile terminal device Download PDFInfo
- Publication number
- CN102375208A CN102375208A CN2011102380092A CN201110238009A CN102375208A CN 102375208 A CN102375208 A CN 102375208A CN 2011102380092 A CN2011102380092 A CN 2011102380092A CN 201110238009 A CN201110238009 A CN 201110238009A CN 102375208 A CN102375208 A CN 102375208A
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- magnetite
- lens
- interior
- collar extension
- outer peripheral
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Abstract
The present invention provides a lens driving device, an automatic focusing camera and a mobile terminal device, wherein optical axis, pickup current and displacement value can be adjusted and the yield rate can be increased after the lens driving device is assembled. According to power-on current of an annular coil (15) wound on a lens supporting body (5), and the electromagnetic force acted on the annular coil (15) by a magnetic filed of a magnet (13), the lens supporting body (5) will be moved toward the optical axis direction of the lens. The lens supporting body (5) is characterized in that an annular opening (3) is provided with a radial extending wall (3c) extending from the peripheral side wall (3a) to the radius inner side, the magnet (13) is fixed on the inner circumference side surface of the peripheral side wall (3a), and holes (21) for adjusting the magnet are formed on various positions corresponding with the magnet (13). After the lens driving device (1) is assembled, jigs (36) are inserted into the magnet adjusting holes (21) to be contacted with the magnet (13), thus the position of the magnet (13) can be adjusted through magnet displacement.
Description
Technical field
The invention relates to the mobile terminal apparatus of a kind of lens driver, auto-focus camera and subsidiary camera function.
Background technology
In the patent documentation 1 (the open JP2009-210897 communique of patent); Announcement has: in interior all sides of ring-type collar extension; The lens supports body is moved freely configuration; To the annulus energising that the external Zhou Shangjuan of lens supports is changeing, then according to the electromagnetic force that annulus produced, the lens supports body will move to optical axis direction.
The lens driver of record in this patent documentation 1, collar extension has the periphery wall of ring-type and begins wall to extended radially the prolonging of radially inner side from outer peripheral sidewall.Interior all sides on the outer peripheral sidewall of collar extension are provided with magnetite.
On the one hand; Though on patent documentation 1, do not have record, general, in the inspection engineering after the assembling of lens driver; When annulus is switched on, the amount of movement (addendum modification) of the inclination (optical axis) of inspection lens supports body, lens supports body pick-up current, lens supports body.In this inspection engineering,,,, the low problem of yields is arranged so handle as defective products like this because be the inspection engineering after the assembling as long as a place is arranged in optical axis, pick-up current or the addendum modification not in specialized range.
Summary of the invention
Therefore,, also can carry out the adjustment of optical axis, pick-up current and addendum modification, try hard to make the mobile terminal apparatus of the lens driver, auto-focus camera and the subsidiary camera function that improve yields even if the present invention is after the assembling of lens driver.
A kind of lens driver, the annulus that it has lens supports body in interior all support of lens, change along the periphery Zhou Fangxiang volume of lens supports body, interior all side lens supports bodies move leisure and the ring-type collar extension that disposes, be fixed in collar extension and along annulus Zhou Fangxiang by the magnetite of certain intervals configuration, can move the spring of comfortable support of lens supporter.According to the electrical current on the annulus, act on the electromagnetic force on the annulus mutually according to the magnetic field of magnetite, the lens supports body will move to the optical axis direction of lens.The characteristics of lens supports body do, collar extension has the periphery wall of ring-type and begins wall to extended radially the prolonging of radially inner side from outer peripheral sidewall, and magnetite is fixed on the interior all sides on the outer peripheral sidewall.Radially prolonging on the wall, be formed with the hole of magnetite adjustment usefulness on pairing each position of magnetite.After lens driver assembling, tool is injected magnetite adjustment hole, bump and receive the position that magnetite is shifted behind the magnetite to adjust magnetite.
In the inspection after the assembling of lens driver; As long as optical axis, pick-up current or addendum modification have a place not in specialized range; The radially edge of collar extension goes out to be provided with in the wall magnetite adjustment hole; From the magnetite insertion tool that inserts in the hole, be pressed into magnetite through tool and make it to depart from, just can adjust the position of magnetite.In addition, magnetite since magnetic force attached on the collar extension, so according to be pressed into the tool magnetite just relatively collar extension make its position deviation.
Owing to the position of departing from magnetite, will change the position of the magnetite of relative annulus, just can change the magnetic density of the magnetite that acts on annulus and the direction of magnetic lines of flux.Magnetite is carried out similar adjustment.Like this, after the assembling, the magnetic density and the magnetic lines of flux direction that act on coil from each magnetite reach optimumization, thus, just can find out optical axis, pick-up current, reach the optimal equilibrium point of addendum modification, in these scopes that all adjustment advances to stipulate.
For this reason, just can improve the yields of lens driver at manufacture view.
The further characteristics of said lens driver are that collar extension is at all sidewalls that have on the week that is positioned at the collar extension outer peripheral sidewall.Radially prolong wall and connecting outer peripheral sidewall and interior all sidewalls, between interior all sidewalls and outer peripheral sidewall, dispose annulus.
In all sidewalls just can play the function of returning circulation port with respect to the what is called of coil, just can improve the magnetic density of magnetite.Even if magnetite is by outer peripheral sidewall, interior all sidewalls and radially prolong wall three directions and surround, also can easily the magnetite position be adjusted according to the magnetite position adjustment hole.
The further characteristics of said lens driver are that framework is arranged on the tool inserting side in magnetite adjustment hole.On framework along magnetite adjustment can the part of profile, on outer circumferential side, be formed with the recess that falls in.
When using tool, through being formed at the recess on the framework, tool is led in the adjustment hole of magnetite into, so the position adjustment operation of magnetite is also carried out in the insertion of tool and be pressed into and just be easy to realize easily.
Auto-focus camera, the portrait sensor that is characterized in having aforesaid lens driver and is provided with in the lens imaging side of lens supports body.
The mobile terminal apparatus of subsidiary camera function is characterized in, is equipped with aforesaid auto-focus camera.
Description of drawings
In the lens driver of Fig. 1 for relevant this example, showed the longitudinal section of adjusting the engineering of magnetite position according to the insertion of tool.
Fig. 2 inserts preceding lens driver oblique view for tool.
Fig. 3 is the oblique view of the lens driver behind the insertion tool.
Fig. 4 is the exploded perspective view of the lens driver (containing guard shield) in this example.
Fig. 5 is lens driver and the oblique view of guard shield that is relevant in this example.
1 lens driver
3 collar extensions
The 3a outer peripheral sidewall
All sidewalls in the 3b
3c connecting wall (radially prolong and portion)
5 lens supports bodies
7 frameworks
13 magnetites
15 annuluses
21 magnetites adjustment hole
23 recesses
Embodiment
Below, referring to figs. 1 to Fig. 5, example of the present invention is elaborated.The lens driver 1 of relevant this example is the lens driver that is assembled into the auto-focus camera in the mobile phone.
This lens driver 1 is like Fig. 1 and shown in Figure 4, have ring-type collar extension 3, lens supports body 5, be configured in collar extension 3 the optical axis direction front side framework 7 and front side spring 9 and be configured in the base 8 and the rear side spring 11 of collar extension 3 rear sides.Rear side spring 11 is made up of the insulation material.As shown in Figure 5, in the front side of framework 7, dispose guard shield 6, cover from the front side with the lens driver 1 beyond the collar extension 3.
As shown in Figure 4, look periphery sideways is the plane quadrangle to collar extension 3 in the past.Interior week is a planar rondure.It is made up of connecting wall (radially prolong and the wall) 3c of outer peripheral sidewall 3a, interior all side 3b, connection outer peripheral sidewall 3a and interior all sidewall 3b, and the cross section of outer peripheral sidewall 3a, interior all sidewall 3b, connecting wall (radially prolong and wall) 3c is " コ " font.Connecting wall (radially prolong and wall) 3c is positioned at outer peripheral sidewall 3a and all sidewall 3b front side.In addition, the bight 14 of collar extension 3 is the lead angle shape.
Interior all sidewall 3b of collar extension 3 are arranged on the 14 pairing positions, bight.Be formed with space 12 between adjacent interior all sidewall 3b, the 3b.
In addition, on 4 of collar extension 3 each bights 14, magnetite 13 is fixed by magnetic force on interior all sides of its outer peripheral sidewall 3a.Magnetite 13 can not move with respect to collar extension 3 in the assembling of common lens driver 1, as follow-up said, bump to connect through tool 36 and retrodeviates from making it mobile.In addition, magnetite 13 and interior all sidewall 3b subtend configurations.
As shown in Figure 4, magnetite 13 is looked the trapezoidal shape into symmetric figure respectively sideways in the past.Outer circumferential side is the shape that the interior all side along outer peripheral sidewall 3a constitutes, and interior all sides be circular-arc along the periphery formation of lens supports body 5.The magnetic pole of all sides and outer circumferential side is inequality in the magnetite 13.For example, interior all sides are that the N utmost point, circumferential lateral surface are the S utmost point.
3c is last for the connecting wall of collar extension 3 (radially prolong and wall), in disposing each bight of magnetite 13, is formed with magnetite adjustment hole 21.In this example, the profile in magnetite adjustment hole 21 is circle shape hole.Like Fig. 2 and shown in Figure 3, it be with the tool of cylindrical shape 36 for identical shaped, than big slightly.
The framework 7 that front side spring 9 is clipped in therebetween, is fixed on the collar extension 3 is the four square ring shapes that peripheral shape constituted along collar extension 3.The bight of framework 7 is positioned at bight 14 same positions of collar extension 3, and the interior all sides in the bight of framework 7 towards outer circumferential side, are formed with the recess 23 that falls in.This recess 23, the part of it and tool 36 is identical shaped, but big slightly.In other words, its also a part of identical shaped with the profile in magnetite adjustment hole 21.In the form of this enforcement, its size is also identical.In this example, the profile of tool 36 and magnetite adjustment hole 21, recess 23 are made identical shaped, but also can be made difformity.
As shown in Figure 4, lens supports body 5 is slightly cylindrical, in interior week lens (diagram is omitted) is maintained.Interior all lateral light direction of principal axis (fore-and-aft direction) of collar extension 3 are moved be set up comfortablely.In the periphery of lens supports body 5, be mounted with coil 15, annulus 15 then is fixed in the coil stationary portion 19 of the lens supports body 5 that is wholely set.Annulus 15 is configured between the interior all sidewall 3b and magnetite 13 of collar extension 3.Therefore, magnetite 13 is pressed the certain intervals configuration along the Zhou Fangxiang of annulus 15.
The state of nature of front side spring 9 before assembling is tabular, it be by the interior all sidepiece 9b that go up the flat circle shape of configuration in interior week of the periphery sidepiece 9a that constitutes the planar rectangular ring-type, periphery sidepiece 9a, and four wrist 9c that connect periphery sidepiece 9a and interior all sidepiece 9b constitute.
The state of nature of rear side spring 11 before assembling is tabular, it be by the interior all sidepiece 11b that go up the flat circle shape of configuration in interior week of the periphery sidepiece 11a that constitutes the planar rectangular ring-type, periphery sidepiece 11a, and four wrist 9c that connect periphery sidepiece 11a and interior all sidepiece 11b constitute.
In addition, the periphery sidepiece 9a of front side spring 9 is held between framework 7 and the collar extension 3.In all sidepiece 9b be fixed in the front end of lens supports body 5.The periphery sidepiece 11a of rear side spring 11 is fixed between base 8 and the rear side pad 17.In all sidepiece 11b be fixed in the rear end of lens supports body 5.Thus, lens supports body 5 is according to front side spring 9 and rear side spring 11, and move up in front and back is being held comfortablely.
Next, assembling, effect and the effect to the lens driver 1 of relevant example of the present invention describes.Before the assembling of lens driver 1, at first annulus 15 is fixed on the periphery of lens supports body 5.
The assembling of lens driver 1; As shown in Figure 4, be fixed on through electromagnetic force with rear side spring 11, feeder ear daughter 20, rear side pad 17, lens supports body 5, with each magnetite 13 collar extension 3 on interior all sides of periphery sidepiece 3a, front side spring 9, and framework be assembled on the base successively.
Then, fixedly the lens supports body 5 of annulus 15 and fixedly the assembling of magnetite 13 between the collar extension 3 of inner peripheral surface be to carry out through lens supports body 5 was inserted from side direction front side thereafter in interior week of collar extension 3.
As shown in Figure 2, in the lens driver 1 after assembling (no fixed protection shell 6), the as shown in Figure 1 inspection.In this inspection engineering; On the leading flank of lens supports body 5, be mounted with catoptron; From the front face side irradiating laser, this reflected light is to receive light through the inspection that is configured in the front side with the portrait sensor, begins according to the light receiving position from sensor; The corresponding in advance experiment data of asking that go up are carried out conversion to the inclination (optical axis) of lens supports body, the pick-up current of lens supports body and the amount of movement (addendum modification) of lens supports body.Reflection lens also can be made such 2 mirrors of irregular reference that optical axis is measured direct reflection and the pick-up current and the addendum modification mensuration usefulness of usefulness.Also can with wherein 1 catoptron leading flank as the half-mirror of minute surface, with trailing flank as the irregular reference mirror.Optical axis, pick-up current, and addendum modification all reached the occasion of the value range of defined, just flow to next process as non-defective unit.For example, from each magnetite adjustment hole 21, inject solid and make it sclerosis, magnetite 13 then is fixed on the collar extension 3.Further, behind the installation guard shield, lens driver 1 was just accomplished.Therefore, guard shield 6 is adjusted hole 21 from the front side with magnetite and is covered, so, see that from the outside magnetite adjustment hole 21 can't see, so, can keep attractive in appearance in appearance.
On the other hand, optical axis, pick-up current or addendum modification, are inserted tool 36 in the magnetite adjustment hole 21 of defined during promptly as bad judgement as long as wherein have one not in the scope of regulation.According to tool 36 bump receive magnetite 13 after, carry out position adjustment, with optical axis, pick-up current and addendum modification these after all adjustment is advanced in the fixing scope, flow into next process as non-defective unit, lens driver 1 has just declared to be finished like this.
In the adjustment engineering after this inspection, after bumping each magnetite 13 of receiving regulation a little, can do one to the position of the magnetite of relative coil and change.That is, in the relation of magnetite 13 and annulus 15, the position change of magnetite 13 will be to the direction and the magnetic density change of the magnetic lines of flux that acts on coil.So thus, the propelling power on its part can change, optical axis, pick-up current, addendum modification also can change.Therefore; About 4 magnetites 13; Magnetite position according to the rules changes; Thereby the magnetic density, the magnetic lines of flux direction that act on annulus 15 will reach optimumization, just can find out the optimal equilibrium point of optical axis, pick-up current, addendum modification, and all are adjusted in the specialized range.
In addition, magnetite 13 is fixed on the collar extension 3 according to magnetic force, so connect according to bumping of tool 36, just can realize changing its position.
Tool be pressed into through change see the computer picture become to optical axis, pick-up current, and addendum modification change operation.In advance, the relation value of these parameters and the amount of being pressed into is carried out integrated, can what μ m which magnetite be moved, at the enterprising line display of computer picture.
According to this example, for example, the occasion of optical axis can be made 5 minutes to 20 minutes angular setting.In addition, in pick-up current, the propelling power on each magnetite opposite position can be adjusted to identical slightly, in view of the above, it is possible being adjusted to specialized range.In addition, on addendum modification, accomplished the deviation of each product is housed in the specialized range.Further, according to the adjustment that the position of magnetite 13 is carried out, the velocity deviation on each product also can be dwindled, and has realized improving the lens translational speed in the focusing automatically.
According to this example; Lens driver 1 is after assembling; Owing to the position of magnetite 13 is adjusted from magnetite adjustment hole 21, can with optical axis, pick-up current, and addendum modification be adjusted in the specialized range, so realized the yields of lens driver 1 on making upwards.
In addition, the bumping of 36 pairs of magnetites 13 of tool connects the position and is, hope is to look sideways on magnetite 13 axis of symmetry on the plane in the past.Because be on axis of symmetry, so can prevent the inclination of magnetite 13.
In the collar extension 3, interior all sidewall 3b just can play the function of returning circulation port with respect to the what is called of coil, just can improve the magnetic density of magnetite 13.Even if magnetite 13 is surrounded by outer peripheral sidewall 3a, interior all sidewall 3b and connecting wall (radially prolong and wall) 3c three faces, also can easily magnetite 13 positions be adjusted according to magnetite position adjustment hole 21.
Through being formed at the recess 23 on the framework 7, tool 36 guiding are advanced in the adjustment hole 21 of magnetite, so the position adjustment operation of magnetite 13 is also carried out in the insertion of tool 36 and be pressed into and just be easy to realize easily.
The present invention is not limited to above-mentioned example, only otherwise break away from main idea of the present invention, can do all changes.For example, in above-mentioned example, after each bight 14 that also can collar extension 3 is provided with a plurality of magnetites adjustment hole, on relative 1 magnetite 13 through a plurality of places with tool 36 bump connect after, make magnetite 13 move.
Slotted hole is made in magnetite adjustment hole 21, on the optional position of slotted hole, after tool 36 bumps and receives magnetite 13, magnetite 13 angular displacements also can.
All sidewall 3b on collar extension 3, not being provided with, it is also passable to make that through outer peripheral sidewall 3a and connecting wall (radially prolonging portion) 3c its cross section is the L font.In addition, also can be designed to interior all sidewall 3b circular.
Claims (5)
1. lens driver; The annulus that has lens supports body, changes along the periphery Zhou Fangxiang volume of lens supports body in interior all support of lens, interior all side lens supports bodies move leisure and the ring-type collar extension that disposes, be fixed in collar extension and along annulus Zhou Fangxiang by the magnetite of certain intervals configuration, can move the spring that supports the lens supports body comfortablely; According to the electrical current on the annulus, act on the electromagnetic force on the annulus mutually according to the magnetic field of magnetite, the lens supports body will move to the optical axis direction of lens; It is characterized in that; Collar extension has the outer peripheral sidewall of ring-type and begins wall to extended radially the prolonging of radially inner side from outer peripheral sidewall, and magnetite is fixed on the interior all sides on the outer peripheral sidewall, is radially prolonging on the wall; Be formed with the hole of magnetite adjustment usefulness on pairing each position of magnetite; After lens driver assembling, tool is injected magnetite adjustment hole, bump and receive the position that magnetite is shifted behind the magnetite to adjust magnetite.
2. lens driver as claimed in claim 1; It is characterized in that; Collar extension is at all sidewalls that have on the week that is positioned at the collar extension outer peripheral sidewall, radially prolongs wall and connecting outer peripheral sidewall and interior all sidewalls, between interior all sidewalls and outer peripheral sidewall, disposes annulus.
3. lens driver as claimed in claim 2 is characterized in that, framework is arranged on the tool inserting side in magnetite adjustment hole, on framework, along the part of the profile that can adjust magnetite, on outer circumferential side, is formed with the recess that falls in.
4. auto-focus camera is characterized in that, has like the lens driver of each record in the claim 1 to 3 and the portrait sensor that is provided with in the lens imaging side of lens supports body.
5. the mobile terminal apparatus of subsidiary camera function is characterized in that, is equipped with the auto-focus camera of claim 4 record.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010182773A JP5669300B2 (en) | 2010-08-18 | 2010-08-18 | Lens drive device, autofocus camera and camera-equipped mobile terminal device |
| JP2010-182773 | 2010-08-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102375208A true CN102375208A (en) | 2012-03-14 |
| CN102375208B CN102375208B (en) | 2014-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110238009.2A Expired - Fee Related CN102375208B (en) | 2010-08-18 | 2011-08-18 | Lens driving device, automatic focusing camera and mobile terminal device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5669300B2 (en) |
| CN (1) | CN102375208B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5762905B2 (en) * | 2011-09-20 | 2015-08-12 | 日本電産サンキョー株式会社 | Inspection jig and lens driving device inspection method |
| KR102173462B1 (en) * | 2017-10-27 | 2020-11-03 | 주식회사 삼양옵틱스 | Camera lens assembly |
| KR102015950B1 (en) * | 2018-04-30 | 2019-08-28 | 평화산업주식회사 | Actuator for active mount |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002107601A (en) * | 2000-09-29 | 2002-04-10 | Sony Corp | Lens barrel |
| JP2006162876A (en) * | 2004-12-06 | 2006-06-22 | Matsushita Electric Ind Co Ltd | Driving device and lens driving device using the same |
| JP2007304214A (en) * | 2006-05-09 | 2007-11-22 | Sanyo Electric Co Ltd | Lens drive device and imaging apparatus having the same |
| CN101488698A (en) * | 2009-02-23 | 2009-07-22 | 李俊 | Voice coil type focus motor |
| CN101526662A (en) * | 2008-03-05 | 2009-09-09 | 三美电机株式会社 | Plate spring, lens driving apparatus, and method for manufacturing plate spring |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0679382B2 (en) * | 1988-06-13 | 1994-10-05 | 株式会社三協精機製作所 | Objective lens drive |
| JP3916628B2 (en) * | 2004-08-31 | 2007-05-16 | 三菱電機株式会社 | LENS DRIVE DEVICE AND IMAGING DEVICE |
| JP4527051B2 (en) * | 2005-12-16 | 2010-08-18 | 三菱電機株式会社 | LENS DRIVE DEVICE AND IMAGING DEVICE |
| JP4639260B2 (en) * | 2008-08-28 | 2011-02-23 | シャープ株式会社 | Camera module and electronic device including the same |
-
2010
- 2010-08-18 JP JP2010182773A patent/JP5669300B2/en active Active
-
2011
- 2011-08-18 CN CN201110238009.2A patent/CN102375208B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002107601A (en) * | 2000-09-29 | 2002-04-10 | Sony Corp | Lens barrel |
| JP2006162876A (en) * | 2004-12-06 | 2006-06-22 | Matsushita Electric Ind Co Ltd | Driving device and lens driving device using the same |
| JP2007304214A (en) * | 2006-05-09 | 2007-11-22 | Sanyo Electric Co Ltd | Lens drive device and imaging apparatus having the same |
| CN101526662A (en) * | 2008-03-05 | 2009-09-09 | 三美电机株式会社 | Plate spring, lens driving apparatus, and method for manufacturing plate spring |
| CN101488698A (en) * | 2009-02-23 | 2009-07-22 | 李俊 | Voice coil type focus motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5669300B2 (en) | 2015-02-12 |
| JP2012042637A (en) | 2012-03-01 |
| CN102375208B (en) | 2014-03-19 |
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Owner name: XINSIKAO ELECTRIC MOTOR CO., LTD. Free format text: FORMER OWNER: SIKAO ELECTRIC MOTOR (SHANGHAI) CO., LTD. Effective date: 20150710 |
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Effective date of registration: 20150710 Address after: 314112 Jiashan City, Jiaxing province Huimin County Street, No., Jia Jia Road, building 3, 1 floor, 58 Patentee after: New math courses Electric Machine Co., Ltd Address before: 201613 No. 38 Teng Teng Road, Songjiang District export processing zone, Shanghai, China Patentee before: Shicoh Motor (Shanghai) Co., Ltd. |
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