CN101174019A - Two-stage type focusing lens structure - Google Patents
Two-stage type focusing lens structure Download PDFInfo
- Publication number
- CN101174019A CN101174019A CNA2006100634178A CN200610063417A CN101174019A CN 101174019 A CN101174019 A CN 101174019A CN A2006100634178 A CNA2006100634178 A CN A2006100634178A CN 200610063417 A CN200610063417 A CN 200610063417A CN 101174019 A CN101174019 A CN 101174019A
- Authority
- CN
- China
- Prior art keywords
- coil holder
- base plate
- coil
- lens structure
- focus lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Lens Barrels (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The invention relates to a two-stage focusing lens structure, comprising a lens assembly, an upper coil holder and a lower coil holder sleeved on the lens assembly, which is characterized in that a permanent magnet is arranged on the lens assembly, the upper coil holder and the lower coil holder are arranged on both sides of the permanent magnet respectively, the winding parts of the upper coil holder and the lower coil holder are separately reeled with coils, each coil holder is extended outwards from the winding part to form a bottom board, the permanent magnet is arranged in a holding space formed between the bottom board of the upper coil holder and the bottom board of the lower coil holder; when the lens assembly is driven to move due to interaction of the permanent magnet and the coils after electrifying and magnetizing the coils, the permanent magnet can move within the holding space. The invention has the advantages of improving the expanding, retracting and moving accuracy of lens assembly and enhancing the imaging quality of the focusing lens structure.
Description
Technical field
The present invention relates to a kind of two-part focus lens structure, particularly relate to a kind of two-part focus lens structure that is applicable to photographic system.
Background technology
Along with the continuous development of science and technology and modern industry, image products such as portable digital camera, camera cell phone have been widely used, so the quality of the focus lens structure of the photographic system in these products also more and more receives dealer's concern.
The focus lens structure of present photographic system, quite a few is to adopt two-part optics focusing technology, in the existing two-part focus lens structure, the axial location of lens group generally is to be realized by spring, promptly utilize the elastic force of spring to realize that the telescopic moving of lens group is to reach the purpose of focusing, but because spring has the external force of being subjected to elastically-deformable character just takes place easily, its ectocine is bigger, therefore spring is difficult to the stroke of controls lens, make accurately contraposition of lens group, reduced the degree of accuracy of focus lens structure, and then influenced the quality of imaging, therefore need have been improved.
Summary of the invention
In view of this, be necessary to provide a kind of two-part focus lens structure that improves the focusing degree of accuracy in fact.
A kind of two-part focus lens structure, comprise lens group and be sheathed on this lens group on, ring support rolls off the production line, this lens group is provided with permanet magnet, on being somebody's turn to do, the ring support that rolls off the production line is divided into the both sides of permanet magnet, on being somebody's turn to do, roll off the production line and be wound with coil respectively on the winding section of ring support, each coil holder formation base plate that stretches out from the winding section, described permanet magnet is housed in the accommodation space that forms between the base plate by the base plate of coil holder on this and the ring support that rolls off the production line, and when the excitatory back of this coil electricity drove the lens group motion with permanet magnet generation reciprocation, described permanet magnet moved in above-mentioned accommodation space.
A kind of two-part focus lens structure, comprise shell, be located at first in the shell, second coil holder and be located at first, lens group in second coil holder, the peripheral intermediate sleeve of this lens group is provided with permanet magnet, this is first years old, be wound with coil on second coil holder and be divided into the both sides of permanet magnet, this is first years old, second coil holder is respectively equipped with base plate in the side near permanet magnet, each base plate is provided with at least one projection of extending to another coil holder bending, described projection is provided with the lead terminal of the end of a thread of guiding coil, and the excitatory back of described coil electricity drives lens group and do switching between the base plate of the base plate of this first coil holder and second coil holder with permanet magnet generation reciprocation.
Compared with prior art, in the above-mentioned two-part focus lens structure, because coil holder is provided with base plate, therefore magnetite can only move between the base plate of upper and lower coil holder, to finish the mutual switching of camera lens between over focus and perifocus, can improve the accuracy of lens group telescopic moving, thereby improve the quality of focus lens structure imaging.
Description of drawings
Fig. 1 is the three-dimensional exploded view of two-part focus lens structure of the present invention one preferred embodiment.
Fig. 2 is the three-dimensional assembly diagram of two-part focus lens structure shown in Figure 1.
Fig. 3 is the synoptic diagram after two-part focus lens structure shown in Figure 1 is removed shell.
Fig. 4 is the sectional view of two-part focus lens structure shown in Figure 1 along the IV-IV line.
Fig. 5 is the synoptic diagram of another duty of two-part focus lens structure shown in Figure 4.
Embodiment
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is to the synoptic diagram that Figure 5 shows that two-part focus lens structure of the present invention 10 1 preferred embodiments, this two-part focus lens structure 10 can be applicable to have the portable electron device such as the digital camera of photographic system, in the camera cell phone, it can do switching between an over focus B (as shown in Figure 4) and a perifocus A (as shown in Figure 5), this two-part focus lens structure 10 comprises a shell 11 (as shown in Figure 2), place the lens group 12 in the shell 11, be sheathed on lens group 12 two ends on, ring support 14 rolls off the production line, 15 and be used for the carrying, ring support 14 rolls off the production line, a base 17 of 15.
This lens group 12 comprises the lens barrel 121 of an annular and places a camera lens 122 in the lens barrel 121, the peripheral intermediate sleeve of this lens barrel 121 is provided with a permanet magnet 124, the bottom of this lens barrel 121 forms two and outwards protrudes out and axially extended raised line 127, these two raised lines 127 are symmetrical arranged (among the figure only wherein a raised line as seen), so that lens barrel 121 is fixed in the ring support 15 that rolls off the production line.The inner edge of this lens barrel 121 is provided with internal thread 126, and the external diameter of the internal diameter of this permanet magnet 124 and this lens barrel 121 is suitable.This camera lens 122 roughly is cylindric, and it is placed in this lens barrel 121, and the outside surface of this camera lens 122 is provided with the external thread 136 that is meshed with internal thread 126 on the lens barrel 121, closely cooperates so that this camera lens 122 forms with this lens barrel 121.
This upper and lower coil holder 14,15 is divided into the both sides of this permanet magnet 124, it is made as silicon steel etc. by the material that can be magnetized, magnetic field so that coil 145,155 (as shown in Figure 3) when energising of strengthening on the upper and lower coil holder 14,15 produces is equipped with the very thin insulation course of one deck 161 on this upper and lower coil holder 14,15.Each coil holder 14,15 comprise the winding section 141 of a tubular, 151 and respectively from the winding section 141, the top board 142 of formation is stretched at 151 two ends to the outer, 152 with base plate 143,153, in view of the above, this winding section 141,151 can supply coil 145 respectively, 155 twine thereon, the groove 154 that raised line 127 in the winding section 151 of this ring support 15 that rolls off the production line on formation and the lens barrel 121 is complementary, engaging by groove 154 and projection 127 realizes the location of lens group 12 at circumferencial direction, this winding section 141,151 internal diameter is a bit larger tham the external diameter of lens barrel 121, so that lens barrel 121 is placed in wherein and ring support 14 along the line, 15 axis relatively moves.This base plate 143,153 roughly are square, its four jiaos respectively are provided with a corner cut 146,156, each corner cut 146,156 extend to form a projection 147 to permanet magnet 124 bending, 157, the corner cut 146 that wherein rolls off the production line on the corner cut 156 last coil holders 14 on the ring support 15 is big, the projection 157 on the ring support 15 of rolling off the production line equals the spacing between the base plate 153 of the base plate 143 of coil holder 14 and the ring support 15 that rolls off the production line, so that projection 157 just is sticked in the projection 147, and prop up the base plate 143 on the coil holder 14, as shown in Figure 3, can prevent coil holder 14,15 move along the radial, thereby reduce coil holder 14,15 rock, and the accuracy of guaranteeing to assemble rear lens group 12 shift motions, in other embodiments, corner cut 146 also can be big than corner cut 156, and projection 147 just is sticked in the projection 157, makes the height of projection 147 equal the distance between the base plate 153 of the base plate 143 of coil holder 14 and the ring support 15 that rolls off the production line and prop up the base plate 153 of the ring support 15 that rolls off the production line, thereby with coil holder 14,15 location.
Each coil holder 14,15 is provided with two lead terminals 148,158 from the outside level in position of corner cut 146,156, so that the end of a thread at guiding coil 145,155 two ends is connected with the power supply of power supply, in the present embodiment, these two conductor terminals 148,158 are respectively formed on adjacent two corner cuts 146,156.This top board 142,152 also roughly is square, and top board 142 of coil holder 14 can be used as the loam cake of focus lens structure 10 on this, enters in the focus lens structure 10 to prevent dust.The top board 152 of this ring support 15 that rolls off the production line is located on this base 17 and with this base 17 and is combined, this base 17 and above-mentioned lead terminal 148, outwards be convexly equipped with two connection terminals 159 on two corners of 158 correspondences, described connection terminal 159 is made as iron by conductive material, copper etc., or scribble layer of conductive material on it, connection terminal 159 is communicated with the circuit board of being located at base 17 belows (figure does not show), this coil 145, the end of a thread of 155 is via lead terminal 148, be welded on the connection terminal 159 to be electrically connected after the 158 winding arrangements with circuit board, by coil 145, the magnetic field that 155 energization excitations change, to change coil holder 14, the magnetic polarity at 15 two ends is somebody's turn to do in the galvanization, ring support 14 rolls off the production line, the opposite magnetic field of polarization on 15.
This shell 11 is sheathed on this upper and lower coil holder 14,15 peripheries, and this shell 11 is made up of two sidewalls 111,112 that are the U type, and this sidewall 111 can be connected and fixed by the snap-in structure 113 that matches with sidewall 112.
During assembling, the external thread 136 of this camera lens 122 by being meshed with internal thread 126 in this lens barrel 121, rotation places in this lens barrel 121, is combined into lens group 12 so that this camera lens 122 closely screws togather with this lens barrel 121; This upper and lower coil holder 14,15 is sheathed on the two ends of lens barrel 121 respectively by the both sides of permanet magnet 124, projection 147,157 on this upper and lower coil holder 14,15 laminates mutually, projection 157 stretches in the projection 147 and props up the base plate 143 of coil holder 14, and forms an accommodation space 160 (as shown in Figure 3) of accommodating this permanet magnet 124 between the base plate 153 of the base plate 143 of last coil holder 14 and the ring support 15 that rolls off the production line; Coil 145,155 is wound on the winding section 141,151 of this upper and lower coil holder 14,15 with certain orientation, after putting in order via lead terminal 148,158, two the end of a thread of each coil 145,155 are welded in respectively on the connection terminal 159 on the base 17, can simplify package program like this, the implementation structure modularity; This shell 11 is sheathed on the periphery of coil holder 14,15.
Please refer to Fig. 4 and Fig. 5, during work, the lens group 12 of this two-part focus lens structure 10 is done switching between perifocus A and over focus B.Suppose that going up of this permanet magnet 12 is the N utmost point, be down the S utmost point, these lens group 12 initial over focus B places that are positioned, as shown in Figure 4, the base plate 153 of ring support 15 of rolling off the production line this moment contacts with the bottom of permanet magnet 124, and the base plate 143 of last coil holder 14 and the top of permanet magnet 124 be certain distance apart.Because coil 145,155 coiling setting makes two coils 145,155 magnetic directions that produce are opposite, therefore when coil 145, behind 155 energization excitations, the magnetic direction that can make coil holder 14 is the last N utmost point that is, it is down the S utmost point, the magnetic direction of ring support 15 of rolling off the production line is the last S utmost point that is, it is down the N utmost point, magnetic field magnetic in contiguous permanet magnet 124 1 ends is the S utmost point, there is a natural attraction between the sexes with permanet magnet 124 for last coil holder 14, the ring support 15 that rolls off the production line repels each other with permanet magnet 124 same sexes, promoting lens group 12 together moves up to and is positioned perifocus A position, as shown in Figure 5, the base plate 143 of coil holder 14 contacts with the top of permanet magnet 124 on this moment, and the base plate 153 of the ring support 15 that rolls off the production line and the bottom of permanet magnet 124 are at a distance of certain distance.
Because after lens group 12 is positioned perifocus A, coil 141,151 outage demagnetizations, magnetic field on the coil holder 14,15 disappears, because last coil holder 14 is made for the material that can be magnetized, permanet magnet 124 is attracted by last coil holder 14 remaining residual magnetisms, makes lens group 12 not need to provide electric power still to be positioned perifocus A position again.
In like manner, when inputing to the direction of current conversion of coil 145,155, the lens group 12 of this two-part focus lens structure 10 can be switched between over focus B by perifocus A.
In the above-mentioned two-part focus lens structure 10, owing to be respectively equipped with base plate 143,153 on the upper and lower coil holder 14,15, therefore permanet magnet 124 moves between the base plate 143,153 of upper and lower coil holder 14,15, to finish the mutual switching of camera lens 122 between perifocus A and over focus B, can improve the accuracy of lens group 12 telescopic movings.Base plate 143,153 is provided with projection 147,157 simultaneously, can prevent that coil holder 14,15 from moving along the radial, thereby reduces rocking of coil holder 14,15, and then improves the quality of focus lens structure 10 imagings.In addition, projection 147,157 is provided with lead terminal 148,158, and coil 141,151 can be communicated with via the power supply of lead terminal 148,158 with power supply, can simplify the package program of focus lens structure 10, the implementation structure modularity.
Claims (11)
1. two-part focus lens structure, comprise lens group and be sheathed on this lens group on, ring support rolls off the production line, this lens group is provided with permanet magnet, on being somebody's turn to do, the ring support that rolls off the production line is divided into the both sides of permanet magnet, on being somebody's turn to do, roll off the production line and be wound with coil respectively on the winding section of ring support, it is characterized in that: each coil holder formation base plate that stretches out from the winding section, described permanet magnet is housed in the accommodation space that forms between the base plate by the base plate of coil holder on this and the ring support that rolls off the production line, and when the excitatory back of this coil electricity drove the lens group motion with permanet magnet generation reciprocation, described permanet magnet moved in above-mentioned accommodation space.
2. two-part focus lens structure as claimed in claim 1 is characterized in that: wherein the base plate of a coil holder extends to form at least one projection to the base plate bending of another coil holder.
3. two-part focus lens structure as claimed in claim 2 is characterized in that: described projection is provided with the lead terminal that is connected with power supply of the end of a thread of guiding coil.
4. two-part focus lens structure as claimed in claim 3, it is characterized in that: also comprise the base that is used to carry described upper and lower coil holder, this base is provided with the connection terminal that is electrically connected with power supply, and the end of a thread of coil is welded in described connection terminal via after the lead terminal arrangement.
5. two-part focus lens structure as claimed in claim 2, it is characterized in that: described base plate is square, and Qi Sijiao is respectively equipped with corner cut, and described projection is extended and against the base plate of another coil holder towards the bending of the base plate of another coil holder from corner cut.
6. two-part focus lens structure as claimed in claim 5 is characterized in that: wherein the corner cut on the base plate is big than the corner cut on another base plate, so that laminate mutually between the corresponding projection.
7. two-part focus lens structure as claimed in claim 1, it is characterized in that: this lens group comprises a lens barrel and places the interior camera lens of lens barrel, described permanet magnet is sheathed on the peripheral middle of this lens barrel, the inner edge of this lens barrel is provided with internal thread, and the outer rim of this camera lens is provided with the external thread that is meshed with this internal thread.
8. two-part focus lens structure as claimed in claim 1 is characterized in that: also comprise shell, this shell is made up of two halves, and described two halves is provided with the snap-in structure that mutually combines.
9. two-part focus lens structure, comprise shell, be located at first in the shell, second coil holder and be located at first, lens group in second coil holder, the peripheral intermediate sleeve of this lens group is provided with permanet magnet, this is first years old, be wound with coil on second coil holder and be divided into the both sides of permanet magnet, it is characterized in that: this is first years old, second coil holder is respectively equipped with base plate in the side near permanet magnet, each base plate is provided with at least one projection of extending to another coil holder bending, described projection is provided with the lead terminal of the end of a thread of guiding coil, and the excitatory back of described coil electricity drives lens group and do switching between the base plate of the base plate of this first coil holder and second coil holder with permanet magnet generation reciprocation.
10. two-part focus lens structure as claimed in claim 9, it is characterized in that: described base plate is square, and Qi Sijiao is respectively equipped with corner cut, and wherein the projection on the coil holder extends and props up the base plate of another coil holder towards another coil holder bending from corner cut.
11. two-part focus lens structure as claimed in claim 10 is characterized in that: wherein the corner cut on the base plate is big than the corner cut on another base plate, so that laminate mutually between the corresponding projection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100634178A CN100543505C (en) | 2006-11-01 | 2006-11-01 | Two-part focus lens structure |
| JP2007251783A JP4988493B2 (en) | 2006-11-01 | 2007-09-27 | Two-stage focus adjustment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100634178A CN100543505C (en) | 2006-11-01 | 2006-11-01 | Two-part focus lens structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101174019A true CN101174019A (en) | 2008-05-07 |
| CN100543505C CN100543505C (en) | 2009-09-23 |
Family
ID=39422630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100634178A Expired - Fee Related CN100543505C (en) | 2006-11-01 | 2006-11-01 | Two-part focus lens structure |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4988493B2 (en) |
| CN (1) | CN100543505C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540393A (en) * | 2012-02-13 | 2012-07-04 | 海信集团有限公司 | Lens focusing device |
| US8248717B2 (en) | 2009-07-20 | 2012-08-21 | Hon Hai Precision Industry Co., Ltd. | Camera module |
| CN106443948A (en) * | 2016-12-27 | 2017-02-22 | 苏州聚力电机有限公司 | Photographing module with multiple camera lenses focusing respectively |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102483506A (en) * | 2009-09-02 | 2012-05-30 | 三洋电机株式会社 | Lens drive device, and camera module and portable telephone which have the lens drive device mounted therein |
| JPWO2011108430A1 (en) * | 2010-03-04 | 2013-06-27 | 三洋電機株式会社 | Lens driving device and camera module |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5289445A (en) * | 1992-02-11 | 1994-02-22 | International Business Machines Corporation | Suspension system for focus actuator of an optical disk drive |
| JP2005117473A (en) * | 2003-10-09 | 2005-04-28 | Sharp Corp | Portable type electronic device, control program, and recording medium |
| JP4478442B2 (en) * | 2003-12-05 | 2010-06-09 | 日本電産サンキョー株式会社 | LENS DRIVE DEVICE AND MANUFACTURING METHOD THEREOF |
| JP2005309076A (en) * | 2004-04-21 | 2005-11-04 | Sankyo Seiki Mfg Co Ltd | Lens drive |
| CN2702328Y (en) * | 2004-06-02 | 2005-05-25 | 光宝科技股份有限公司 | Two-stage focusing lens |
| JP2006078869A (en) * | 2004-09-10 | 2006-03-23 | Nidec Sankyo Corp | Lens driving device |
| CN100516961C (en) * | 2004-12-04 | 2009-07-22 | 鸿富锦精密工业（深圳）有限公司 | Two section type focusing mechanism |
| JP2006187104A (en) * | 2004-12-27 | 2006-07-13 | Nidec Sankyo Corp | Magnetic driving device and lens driving device |
| JP2006184503A (en) * | 2004-12-27 | 2006-07-13 | Nidec Sankyo Corp | Lens driving device |
| CN2769954Y (en) * | 2005-01-21 | 2006-04-05 | 鸿富锦精密工业（深圳）有限公司 | Two-section type focusing device |
| JP4537866B2 (en) * | 2005-02-28 | 2010-09-08 | 日本電産サンキョー株式会社 | Lens drive device |
| JP2007147765A (en) * | 2005-11-24 | 2007-06-14 | Alps Electric Co Ltd | Lens actuator |
-
2006
- 2006-11-01 CN CNB2006100634178A patent/CN100543505C/en not_active Expired - Fee Related
-
2007
- 2007-09-27 JP JP2007251783A patent/JP4988493B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8248717B2 (en) | 2009-07-20 | 2012-08-21 | Hon Hai Precision Industry Co., Ltd. | Camera module |
| CN101957487B (en) * | 2009-07-20 | 2013-10-09 | 鸿富锦精密工业（深圳）有限公司 | Lens module and assembling method thereof |
| CN102540393A (en) * | 2012-02-13 | 2012-07-04 | 海信集团有限公司 | Lens focusing device |
| CN106443948A (en) * | 2016-12-27 | 2017-02-22 | 苏州聚力电机有限公司 | Photographing module with multiple camera lenses focusing respectively |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4988493B2 (en) | 2012-08-01 |
| CN100543505C (en) | 2009-09-23 |
| JP2008116925A (en) | 2008-05-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7505219B2 (en) | Multi-stage lens driving device | |
| CN101604063B (en) | Camera structure | |
| CN101546093A (en) | Camera auto-focus structure | |
| CN101324741B (en) | Camera motor | |
| US20090022487A1 (en) | Two-step auto focus camera and method for driving the same | |
| CN100543505C (en) | Two-part focus lens structure | |
| US20090268309A1 (en) | Camera module | |
| CN101571659A (en) | Auto-focus structure of camera | |
| CN101135827B (en) | Camera automatically focusing structure | |
| CN201273955Y (en) | Lens driving apparatus | |
| CN101483376B (en) | Voice coil motor | |
| CN105182655A (en) | Anti-magnetic-interference translational type optical anti-jittering voice coil motor and assembling method thereof | |
| CN109412458B (en) | Focusing motor and camera module | |
| CN201273956Y (en) | Lens driver | |
| CN101105571B (en) | Camera motor | |
| US7596309B2 (en) | Auto-focusing camera | |
| JP2006309109A (en) | Electromagnetically actuated adjusting apparatus applied to lens | |
| CN101408653B (en) | Camera motor | |
| CN111142309B (en) | Piezoelectric optical anti-shake mechanism, camera device and electronic equipment | |
| CN105022205A (en) | Ultrathin optical anti-shake voice coil motor | |
| CN204903925U (en) | Diamagnetic and disturb translation formula optics anti -shake voice coil motor | |
| CN107124085A (en) | A kind of magnetic structure of loop circuit voice coil motor | |
| CN111479047B (en) | Camera shooting assembly and electronic equipment | |
| JP2006187104A (en) | Magnetic driving device and lens driving device | |
| KR101948411B1 (en) | Multiple camera lens module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090923 Termination date: 20141101 |
|
| EXPY | Termination of patent right or utility model |