CN201233466Y - Reed for camera lens driving mechanism - Google Patents
Reed for camera lens driving mechanism Download PDFInfo
- Publication number
- CN201233466Y CN201233466Y CNU2008201620571U CN200820162057U CN201233466Y CN 201233466 Y CN201233466 Y CN 201233466Y CN U2008201620571 U CNU2008201620571 U CN U2008201620571U CN 200820162057 U CN200820162057 U CN 200820162057U CN 201233466 Y CN201233466 Y CN 201233466Y
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- China
- Prior art keywords
- gabarit
- reed
- drive mechanism
- camera lens
- wide
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Abstract
The utility model relates to reeds for a camera lens drive mechanism, the reeds (1, 2) are shaped like flakes as a whole, the reeds include annular outer profiles (11, 21) and annular inner profiles (12, 22) which are positioned in the outer profiles, spacing intervals are arranged between the inner walls of the outer profiles and the outer walls of the inner profiles, the outer profiles and the inner profiles are connected by at least two connection reed threads (3, 4) which are arranged at intervals, the reeds are characterized in that the connection reed threads are coiled and arranged along a circumferential continuous shape of SS, the lower sides (311, 411) of the front S-shaped part are connected with the upper sides (312, 412) of the back S-shaped part in the adjacent two S-shaped parts (31, 41), the outer profiles are square or rectangular, the inner profiles are circular, and the connection reed threads are arranged at the side angels in the outer profiles. The connection reed threads can improve the anti-deformation ability through the S-shaped coiling role, and the connection reed threads further have good elastic effect and can effectively improve overall stiffness and impact resistance performance, thereby ensuring the good imaging quality of the lens drive mechanism which uses the reeds.
Description
Technical field
The utility model belongs to camera lens drive unit field; Particularly relate to and keep harmonious with the stable reed for camera lens drive mechanism of its motion in a kind of lens driving process.The utility model is mainly used in having in the lens actuating device of miniature camera of automatic focus function, and matches with sensor microminiaturized, high image quality, especially is suitable for supporting application in mobile phone, computer, automobile and robot.
Background technology
What the similar lens driver structure that is adopted in the existing domestic and international miniature camera was comparatively general is disclosed scheme in 200410017724.3 1 kinds " lens drivers " as China Patent No., it comprises that one is installed in the tubular magnet yoke ring on the base, be mounted with magnetite and coil in this magnet yoke ring, all sides are provided with the lens with a lens supports body in this coil; Described magnetite and coil are placed in this magnet yoke ring inside, and on the periphery of this coil stationary lens supports body of all sides in this magnet yoke ring, this lens supports body stretches in the described tubular magnet yoke ring and can move in this magnet yoke ring; Described lens driver also comprises the front side reed and the rear side reed of annular, fixedly connected with the front side of described magnet yoke ring in their outer circumferential side end, also has a small cap, this small cap is fixed on all side ends in the reed of described front side on the described lens supports body front side, also have a framework, this framework is fixed on reed outer circumferential side end, described front side on the front side of described magnet yoke ring.
The said lens drive unit utilizes the electromagnetic induction effect of magnetite, make the lens supports body that is placed in the magnet yoke ring centre be subjected to parallel electromagnetic force effect and produce displacement, the front side reed and the rear side reed that are placed in the lens supports body simultaneously produce reacting force, when electromagnetic force on acting on the lens supports body and reed elastic force reached balance, this lens supports body remained on certain position; Be that the electromagnetic force that is produced behind the described coil electricity resists mutually in the acting force of described front side reed and rear side reed, order about described lens supports body and move to optical axis direction.
Adopting above-mentioned China Patent No. is 200410017724.3 " lens drivers " though move by both sides restriction lens supports body before and after it, makes it to have anti-jolting and impact property and the good image quality of tool.
Yet, one of its weak point is only to link to each other by a plurality of roughly linearly spring silks between the exterior feature in annular gabarit in the above-mentioned forward and backward reed and the annular, therefore, poor on the integral rigidity of whole forward and backward reed, resistance to impact and the non-deformability, when so forward and backward reed after stressed, spring filament on it is yielding, can cause like this using that lens produce deviation in the lens drives structure of this reed when the optical axis direction displacement, influences the image quality of camera.
Secondly, be the equidirectional ringwise dislocation configuration of described forward and backward side reed shape, therefore before and after this reed, during displacement generation deformation, can produce equidirectional revolving force simultaneously, cause that easily the lens supports body rotates skew.
Once more, be described front side reed with rear side reed and described lens supports body between to be connected the locating device operation various, and the front side reed cooperates the location with inner edge and front side reed that the location of rear side reed depends on outside framework and base with the outer rim of rear side reed, in case above-mentioned one of them tolerance on fit of each parts goes wrong, very easily cause supported lens supports body to form great concentricity and optical axis degree deviation, make image quality reduce.Impact one of key factor of product qualified rate thus.
The utility model content
Technical problem to be solved in the utility model be provide at above-mentioned prior art present situation that a kind of elastic effect is good, integral rigidity, resistance to impact and the good reed for camera lens drive mechanism of non-deformability.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of reed for camera lens drive mechanism, the whole flakiness shape of this reed, described reed is by in the form of a ring gabarit and be positioned at wide composition in the form of a ring of gabarit, and has spacing between the inwall of gabarit and the outer wall of interior exterior feature, have at least two connection spring silks that are provided with at interval to link to each other between described gabarit and the interior exterior feature, it is characterized in that: described connection spring silk is along circumferentially continuous two S shape coilings to be arranged, in adjacent two S shape portions, the bottom of preceding S shape portion links to each other with the top of back S shape portion.
For preventing that reed from producing the revolving force around himself in use, thereby cause the lens supports body to rotate skew, influence the image quality of camera, above-mentioned gabarit is square or rectangular, wide rounded in described, described connection spring silk is arranged in the edge in the gabarit.Because gabarit is square or rectangular, therefore be positioned can be around the revolving force of himself for this gabarit, and therefore the lens supports body that supports on it can not rotate skew, guarantees to obtain good image quality, also help controlling the qualification rate of finished product, reduce cost of products.
For guaranteeing the elasticity of reed, above-mentioned connection spring silk is arranged in four edges in the gabarit to have four for good.
Above-mentioned gabarit and interior exterior feature are integral piece, and the preceding reed that such reed is suitable as in the camera lens drive mechanism uses; The outer wall of described gabarit is interval with a plurality of outer arcuate mouths, correspondence, and described interior wide inwall is interval with the corresponding arc mouth of a plurality of and described outer arcuate mouth, and described outer arcuate mouth and arc mouth relative spacing are provided with and the formation pilot hole.During assembling, this pilot hole is corresponding with the pilot hole of described lens supports body, be enclosed within successively on the pilot pin of unit clamp, guarantee the accurate positioning of this reed, and be connected the assembly technology of locating between reed and the described lens supports body before simplifying, help controlling product qualified rate, and reduce cost of products.
Four outer corners places of above-mentioned gabarit respectively are provided with an opening and be the splicing opening of L type outwardly.This splicing opening plays the effect of location, further prevents the rotation of reed, also plays the enhancing bonding strength, and glue is flowed towards this splicing opening part, prevents that glue is to overflow all around.
The inwall of above-mentioned interior exterior feature is interval with a plurality of openings gummed opening inwardly.It is semicircle or square that this gummed opening can be arranged to circle.
Wherein, above-mentioned gabarit is spliced at interval by a left side half gabarit and right half gabarit, widely in described be spliced at interval by wide in wide and right half in the left side half.The back reed that the reed of this structure is suitable as in the camera lens drive mechanism uses, because the back reed will link to each other with the both positive and negative polarity of external drive power supply, therefore needs this reed to divide the left and right sides two parts that are provided with at interval.
The last outer corners place of an above-mentioned left side half gabarit is provided with an opening and be the splicing opening of L type outwardly, and the following outer corners place of the described right side half gabarit is provided with an opening and be the splicing opening of L type outwardly; Glued joint opening and play the effect of location, further prevent the rotation of back reed, also play the enhancing bonding strength, glue is flowed towards this splicing opening part, prevent that glue is to overflow all around.For making this back reed be convenient to link to each other with the both positive and negative polarity of power supply, the following outer corners place of left half gabarit has the anodal pin of extension, and the last outer corners place of right half gabarit has the negative pole pin of extension.
Wide its periphery of inwall upper edge is provided with a circumferential locating slot in a left side at least in the above-mentioned left side half; Wide its periphery of inwall upper edge is provided with a circumferential locating slot in the right side at least in the described right side half.During assembling, this circumferential locating slot is corresponding with the locating slot of described lens supports body, be enclosed within successively on the pilot pin of unit clamp, guarantee the accurate positioning of this back reed, and simplify the assembly technology of locating that is connected between back reed and the described lens supports body, help controlling product qualified rate, and reduce cost of products.
Compared with prior art, advantage of the present utility model is: described connection spring silk is along circumferentially continuous two S shapes coilings to be arranged, in adjacent two S shape portions, the bottom of preceding S shape portion with after the top of S shape portion link to each other.Improve the ability of resistance to deformation by the coiling interaction energy of S shape portion, and the elastic effect that connects the spring silk is good, integral rigidity, resistance to impact all can effectively be promoted, also help and connect the function that tangential forces that the spring silk produced is cancelled each other when optical axis direction is out of shape, avoid the lens supports body to rotate skew, guarantee to use the lens drives structure favorable imaging quality of this reed.
Description of drawings
Fig. 1 is the structural representation of preceding reed among the utility model embodiment;
Fig. 2 is the structural representation of back reed among the utility model embodiment;
Fig. 3 is the vertical view of forward and backward reed in lens actuating device among the utility model embodiment;
Fig. 4 is that the A-A of Fig. 3 is to cut-open view.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Shown in Fig. 1～4, be a preferred embodiment of the present utility model.
A kind of reed for camera lens drive mechanism, the reed in the general camera lens drive mechanism has two kinds, reed 1 and back reed 2 before being respectively, described forward and backward reed 1,2 whole flakiness shapes.
The concrete structure of reed 1 and back reed 2 before now setting forth.
Reed 1 is by in the form of a ring gabarit 11 and interior wide 12 forming in the form of a ring before described, and described gabarit 11 and interior wide 12 is integral piece.
Wherein, described gabarit 11 has a rectangular shape, and four outer corners places of gabarit 11 respectively are provided with an opening and be the splicing opening 112 of L type outwardly.
Wide 12 is rounded in described, and interior wide 12 are positioned at described gabarit 11, and between gabarit 11 inwalls and interior wide 12 outer walls spacing is arranged, the connection spring silk 3 that is provided with at interval between the described gabarit 11 and interior wide 12 links to each other, described connection spring silk 3 has four, is arranged in four edges in the gabarit 11, and described connection spring silk 3 is along circumferentially continuous two S shape coiling layouts, in adjacent two S shape portions 31, the bottom 311 of preceding S shape portion links to each other with the top 312 of back S shape portion.It can be two dishes that the dish of S shape portion returns quantity, also can be polydisc, and ability, the elastic effect of dish number many more resistance to deformations is good, integral rigidity, resistance to impact all can be good more, and it is not The more the better according to the size setting of magnetic force certainly.
The outer wall of described gabarit 11 is interval with four outer arcuate mouths 111, corresponding, in described wide 12 inwall be interval with four with described outer arcuate mouth 111 corresponding arc mouths 121, described outer arcuate mouth 111 and the 121 relative spacing settings of arc mouth and form pilot hole 5.Wide 12 inwall is interval with four pairs of openings gummed opening 122 inwardly in described.
Described back reed 2 is by in the form of a ring gabarit 21 and interior wide 22 forming in the form of a ring, and described gabarit 21 is spliced at interval by a left side half gabarit 21a and right half gabarit 21b, wide 22 is spliced at interval by wide 22a in the left side half and right half interior wide 22b in described.
Wide 22 are positioned at gabarit 21 in described, and between gabarit 21 and interior wide 22 spacing is arranged, being provided with connection spring silk 4 between the described gabarit 21 and interior wide 22 links to each other, described connection spring silk 4 has four, be arranged in four edges in the gabarit 21, and described connection spring silk 3 is along circumferentially continuous two S shapes coilings to be arranged, in adjacent two S shape portions 41, the bottom 411 of preceding S shape portion with after the top 412 of S shape portion link to each other.It can be two dishes that the dish of S shape portion returns quantity, also can be polydisc, and ability, the elastic effect of dish number many more resistance to deformations is good, integral rigidity, resistance to impact all can be good more, and it is not The more the better according to the size setting of magnetic force certainly.
The last outer corners place of a described left side half gabarit 21a is provided with an opening and be the splicing opening 211 of L type outwardly, and the following outer corners place of left half gabarit 21b has the anodal pin 213 of extension; The following outer corners place of the described right side half gabarit 21b is provided with an opening and be the splicing opening 212 of L type outwardly, and the last outer corners place of right half gabarit 21b has the negative pole pin 214 of extension.Described motor pin 213,214 also can be arranged on any position on the described gabarit neighboring.
Its periphery of inwall upper edge of wide 21a is provided with two circumferential locating slots 221 in a left side in the described left side half; Its periphery of inwall upper edge of wide 21b is provided with two circumferential locating slots 222 in the right side in the described right side half.
Their mounting means and positions in lens actuating device are roughly as follows:
As shown in Figure 3, one is placed in the magnet yoke ring 7 on the base 6, these magnet yoke ring 7 inner chambers are provided with the lens supports body 8 of band lens, be positioned at lens supports body 8 one sides in this magnet yoke ring 7 and be mounted with front side pad 9, preceding reed 1, be positioned at lens supports body opposite side in this magnet yoke ring 7 and be mounted with rear side pad 10 and back reed 2, described lens supports body 8 is placed in magnet yoke ring 7 inner chambers and by preceding reed 1 and back reed 2 and supports, magnet yoke ring 7 inside are provided with a coil 13, this coil 13 is fixed on the periphery of lens supports body 9, the outside of coil 13 is with magnetite 14, and this lens supports body 8 can move forward and backward in described magnet yoke ring 7.
Reed 1 is arranged between the front side pad 9 and magnetite 14 in magnet yoke ring 7 inner chambers before described; Back reed 2 is arranged between a rear side pad 10 and the base 6, and this base 6 carries the axial location between the supporter 8 in order to reed 2, preceding reed 1, lens after locating.
Back reed 2 on this lens driver welds together as the extension line of conducting terminal and coil 13, and driving power is by the pin 213,214 and the coil 13 interior formation electric loops of back reed 2.When passing through electric current in the coil 13, in magnetite 14 and the magnet yoke ring 7 inner magnetic fields that constitute, induce electromagnetic force, make under the promotion of electromagnetic force lens supports body 8 on the optical axis direction reach or after move, when lens supports body 8 is subjected to displacement, preceding reed 1 and back reed 2 produce the retroaction damping forces, when this retroaction damping force and described electromagnetic force equilibrium, lens supports body 8 just can remain on certain position, reaches the purpose of camera automatic focusing.
Position and the principle of work of this forward and backward reed 1,2 in lens actuating device is routine techniques, can be with reference to prior art.
Claims (9)
1, a kind of reed for camera lens drive mechanism, this reed (1,2) whole flakiness shape, described reed (1,2) by in the form of a ring gabarit (11,21) and be positioned at gabarit (11,21) Nei interior exterior feature (12 in the form of a ring, 22) form, and gabarit (11,21) inwall and interior exterior feature (12,22) has spacing between the outer wall, described gabarit (11,21) and interior exterior feature (12,22) have two connection spring silks (3 that are provided with at interval between at least, 4) link to each other, it is characterized in that: described connection spring silk (3,4) be along circumferentially continuous two S shape coiling layouts, in adjacent two S shape portions (31,41) in, the bottom (311 of preceding S shape portion, 411) with the top (312 of back S shape portion, 412) link to each other.
2, reed for camera lens drive mechanism according to claim 1, it is characterized in that: described gabarit (11,21) is square or rectangular, wide (12,22) are rounded in described, and described connection spring silk (3,4) is arranged in the edge in the gabarit (11,21).
3, reed for camera lens drive mechanism according to claim 2 is characterized in that: described connection spring silk (3,4) has four, is arranged in four edges in the gabarit (11,21).
4, according to claim 2 or 3 described reed for camera lens drive mechanism, it is characterized in that: described gabarit (11) and interior exterior feature (12) are integral piece, the outer wall of described gabarit (11) is interval with a plurality of outer arcuate mouths (111), corresponding, the inwall of wide (12) is interval with a plurality of and described outer arcuate mouth (111) arc mouth (121) accordingly in described, described outer arcuate mouth (111) and arc mouth (121) relative spacing setting and form pilot hole (5).
5, reed for camera lens drive mechanism according to claim 4 is characterized in that: four outer corners places of described gabarit (11) respectively are provided with an opening and be the splicing opening (112) of L type outwardly.
6, reed for camera lens drive mechanism according to claim 4 is characterized in that: the inwall of wide (12) is interval with a plurality of openings gummed opening (122) inwardly in described.
7, according to claim 2 or 3 described reed for camera lens drive mechanism, it is characterized in that: described gabarit (21) is spliced at interval by a left side half gabarit (21a) and right half gabarit (21b), and described interior wide (22) are spliced at interval by wide (22b) in wide (22a) in the left side half and the right side half.
8, reed for camera lens drive mechanism according to claim 7, it is characterized in that: the last outer corners place of a described left side half gabarit (21a) is provided with an opening and be the splicing opening (211) of L type outwardly, and the following outer corners place of the described right side half gabarit (21b) is provided with an opening and be the splicing opening (212) of L type outwardly; The following outer corners place of a described left side half gabarit (21a) has the anodal pin (213) of extension, and the last outer corners place of the described right side half gabarit (21b) has the negative pole pin (214) of extension.
9, reed for camera lens drive mechanism according to claim 7 is characterized in that: its periphery of inwall upper edge of wide (22a) is provided with a circumferential locating slot in a left side (221) at least in the described left side half; Its periphery of inwall upper edge of wide (22b) is provided with a circumferential locating slot in the right side (222) at least in the described right side half.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201620571U CN201233466Y (en) | 2008-07-31 | 2008-07-31 | Reed for camera lens driving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201620571U CN201233466Y (en) | 2008-07-31 | 2008-07-31 | Reed for camera lens driving mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201233466Y true CN201233466Y (en) | 2009-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201620571U Expired - Lifetime CN201233466Y (en) | 2008-07-31 | 2008-07-31 | Reed for camera lens driving mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN201233466Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531480A (en) * | 2014-03-05 | 2019-12-03 | Lg伊诺特有限公司 | Lens mobile unit and camera module comprising the lens mobile unit |
| CN110687655A (en) * | 2015-05-28 | 2020-01-14 | 核心光电有限公司 | Bi-directional stiffness for optical image stabilization and auto-focus in dual aperture digital cameras |
-
2008
- 2008-07-31 CN CNU2008201620571U patent/CN201233466Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110531480A (en) * | 2014-03-05 | 2019-12-03 | Lg伊诺特有限公司 | Lens mobile unit and camera module comprising the lens mobile unit |
| CN110531480B (en) * | 2014-03-05 | 2022-10-11 | Lg伊诺特有限公司 | Lens moving unit and camera module including the same |
| CN110687655A (en) * | 2015-05-28 | 2020-01-14 | 核心光电有限公司 | Bi-directional stiffness for optical image stabilization and auto-focus in dual aperture digital cameras |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090506 |