CN100552485C - Embedded focus lens structure - Google Patents
Embedded focus lens structure Download PDFInfo
- Publication number
- CN100552485C CN100552485C CNB2006101570012A CN200610157001A CN100552485C CN 100552485 C CN100552485 C CN 100552485C CN B2006101570012 A CNB2006101570012 A CN B2006101570012A CN 200610157001 A CN200610157001 A CN 200610157001A CN 100552485 C CN100552485 C CN 100552485C
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- rotor
- lens barrel
- lens
- camera lens
- stator
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Abstract
A kind of embedded focus lens structure, comprise stator, be located at the rotor in the stator, the camera lens that is placed in the lens barrel in the rotor and matches with this lens barrel, this camera lens is provided with external thread in its outside surface, this rotor is provided with internal thread in its inside surface, this lens barrel is respectively equipped with internal thread and external thread on its inside surface and outside surface, the internal thread of this lens barrel matches fixing so that camera lens is finely tuned with external thread on the camera lens, the external thread of this lens barrel matches with epitrochanterian internal thread to realize the telescopic moving of camera lens, this rotor comprises permanet magnet and is located at the driving collar of this magnetite one end, the internal thread of this rotor is located on the inwall of this driving collar, in the above-mentioned embedded focus lens structure, this lens barrel is provided with two helicitic textures, can realize the fine setting dual-use function fixing and that accurately focus automatically of camera lens, thereby can reduce assembling procedure and cost, and can obtain gratifying imaging parsing effect.
Description
Technical field
The present invention relates to a kind of embedded focus lens structure, particularly relate to a kind of embedded focus lens structure that is applicable to electronic product with camera function.
Background technology
Continuous development along with science and technology and modern industry, the electronic product that portable digital camera, camera cell phone etc. have camera function is widely used, therefore in these electronic products, its quality of carrying out the focus lens structure of photograph focus function also more and more receives dealer's concern.
At present industry has proposed a kind of two-part focus lens structure, and this two-part focus lens structure can to-and-fro movement between an over focus and a perifocus, to realize two fixed point focusings.Usually, this two-part focus lens structure comprises a lens barrel that is hollow tube-shape and is fixed in the interior camera lens of this lens barrel that the periphery of this lens barrel is fixed with a permanent magnet, and in the top and the below of permanent magnet two coils is set respectively.When these two coils pass to the electric current of different directions, one of them coil produces the attractive force to permanent magnet, another coil then produces the repulsive force to permanent magnet, integrate and then impel permanent magnet drive lens barrel and camera lens to move jointly, thereby be implemented in two fixed point focusings toward over focus or perifocus.
Yet, in the above-mentioned two-part focus lens structure, after camera lens is fixed in lens barrel usually, promptly can not finely tune again according to the needs of realizing the assembling allotment again.Simultaneously, two-part focus lens structure can't realize accurately focusing and obtain gratifying imaging and resolve effect owing to can only focus two fixed points, need be improved.
Summary of the invention
In view of this, being necessary to provide a kind of can realize accurately focusing and can finely tune fixing embedded focus lens structure to camera lens.
A kind of embedded focus lens structure, comprise stator, be located at the rotor in the stator, the camera lens that is placed in the lens barrel in the rotor and matches with this lens barrel, this camera lens is provided with external thread in its outside surface, this rotor is provided with internal thread in its inside surface, this lens barrel is respectively equipped with internal thread and external thread on its inside surface and outside surface, the internal thread of this lens barrel matches fixing so that camera lens is finely tuned with external thread on the camera lens, the external thread of this lens barrel matches with epitrochanterian internal thread to realize the telescopic moving of camera lens, this rotor comprises permanet magnet and is located at the driving collar of this magnetite one end that the internal thread of this rotor is located on the inwall of this driving collar.
Compared with prior art, in the above-mentioned embedded focus lens structure, this lens barrel is provided with internal thread and externally threaded pair of helicitic texture, can realize the function that above-mentioned camera lens is accurately focused automatically by the external thread that epitrochanterian internal thread drives on the lens barrel on the one hand, obtain gratifying imaging and resolve effect, internal thread on the lens barrel matches with external thread on the camera lens on the other hand, can carry and fixed lens, after the camera lens assembling, still can finely tune fixing again according to the needs of assembling allotment simultaneously to camera lens, thereby be convenient to assembling, reduce assembling procedure and cost.
Description of drawings
Fig. 1 is the three-dimensional exploded view of the embedded focus lens structure of the present invention preferred embodiment.
Fig. 2 is the exploded view of the pedestal of embedded focus lens structure shown in Figure 1.
Fig. 3 is the three-dimensional cutaway view that the rotor in the embedded focus lens structure shown in Figure 1 combines with lens barrel.
Fig. 4 is the three-dimensional assembly diagram of embedded focus lens structure shown in Figure 1.
Fig. 5 is the cut-open view of embedded focus lens structure shown in Figure 4.
Fig. 6 is the duty diagrammatic cross-section of embedded focus lens structure shown in Figure 4.
Embodiment
With reference to the accompanying drawings, be described further in conjunction with the embodiments.
Fig. 1 is to the structural representation that Figure 5 shows that embedded focus lens structure one preferred embodiment of the present invention, and this embedded focus lens structure comprises a circuit board 11, be located at a pedestal 17 on the circuit board 11, be placed in motor 12 in the pedestal 17, be placed in lens barrel 14, the camera lens 15 that matches with this lens barrel 14 in the motor 12 and be covered on lid 16 on this camera lens 15.This motor 12 is a step motor, and it comprises stator pack 120 and be located at rotor 130 in the stator pack 120 that this lens barrel 14 places in this rotor 130.
This circuit board 11 is provided with the image sensor 112 that is electrically connected with circuit board 11, this image sensor 112 can be charge-coupled device (Charge Coupled Device, CCD) image sensor, also can be complementary metal oxide semiconductor (CMOS) (Complementary Metal-Oxide Semiconductor, CMOS) image sensor, in the process of focus lens arrangement works, by the sharpness of image sensor 112 sensing images, circuit board 11 Control current reach focus function.
This pedestal 17 is located on the circuit board 11, this pedestal 17 comprise circle foreign side in pedestal 171, extend upward a housing 172 that forms and place in this housing 172 and be set up in bracing frame 173 on this pedestal 171 by these pedestal 171 peripheries.As shown in Figure 2, the tubular of circle foreign side in this housing 172 also is, it can be used as the shell of embedded focus lens structure, and this housing respectively is provided with an opening 175 for 172 4 jiaos, and 171 4 jiaos of corresponding above-mentioned openings 175 of this pedestal respectively are provided with a groove 176.This bracing frame 173 comprises that one is four ribs 178 that circular body 177 reaches around this body 177, and these ribs 178 are corresponding one by one with above-mentioned groove 176.This body 177 comprises the outward flange 181 that extends internally teat 179, the inner edge in its bottom of a ring-type protruding upward the inward flange 180 that forms and the outer rim in its bottom stretch out and form, and this teat 179, inward flange 180 and outward flange 181 are respectively applied for carrying stator pack 120, rotor 130 and lens barrel 14.The external diameter of this body 177 is slightly smaller than the internal diameter of housing 172, and this body 177 places in this housing 172, and its ribs 178 is stretched out and is equipped in the groove 176 of pedestal 171 along the opening 175 of 172 4 jiaos of housings, with bracing frame 173 location.In addition, this bracing frame 173 can be one-body molded with pedestal 171, housing 172.
This stator pack 120 places in this pedestal 17, it comprises a stator sleeve 121 and is placed in a stator 122 in this stator sleeve 121, this stator sleeve 121 is tubular, the opening 175 of the corresponding pedestal 17 in its lower end is provided with two wire holes 123, this stator 122 also is tubular, its inner formation can ccontaining rotor 130 cylindrical space, the inner ring surface of this stator 122 is provided with some utmost point teeth 124, described utmost point tooth 124 can determine the stepping angle of step motor 12, the outside surface of this stator 122 then is provided with the coil 125 (as shown in Figure 5) that axially is wound on this stator 122, the end of a thread of this coil 125 passes the opening 175 of the wire hole 123 of this stator sleeve 121 and this pedestal 11 and is wound on the ribs 178, so that be electrically connected with circuit board 11.
This rotor 130 is placed in the cylindrical space of this stator 122, it comprises the permanet magnet 131 of an annulus column, this magnetite 131 can be iron oxide magnetite (Ferrite), neodymium iron boron magnetite (NdFeB) etc., it is located on the body 177 of this bracing frame 173, this magnetite 131 is provided with the driving collar 133 near an end of this body 177, as shown in Figure 3, this driving collar 133 also is the hollow circular ring shape, the outside surface of its upper end is provided with a stage portion 134, the bottom of this magnetite 131 is placed in this stage portion 134, so that this driving collar 133 forms as one with this magnetite 131, the inwall of this driving collar 133 is provided with the driving internal thread 136 that drives camera lens 15 motions.This magnetite 131 is provided with a circular protective seam 138 near an end of this lid 16, and this protective seam 138 can be made by high-abrasive material, and it can prevent that magnetite 131 from damaging with lid 16 frictional impacts in rotary course.
This lens barrel 14 is located in this magnetite 131, this lens barrel 14 also is the annulus column, its external diameter is slightly smaller than the internal diameter of this magnetite 131, and on this lens barrel 14, the lower end all stretches out in outside this magnetite 131 in the axial direction, the upper end of this lens barrel 14 promptly is provided with some grooves 143 that are provided with along its circumferencial direction equi-spaced apart near the end of lid 16, the lower end of this lens barrel 14 is arranged on the inward flange 180 of this bracing frame 173, the driving external thread 146 that its outside surface is screwed in the internal thread 136 that is provided with and drives the collar 133 near the position of bottom, thereby guarantee the telescopic moving of camera lens 15, the inside surface of lens barrel 14 then is provided with assembling internal thread 148 in the position near the bottom, to be used for and camera lens 15 combinations.
This camera lens 15 is cylindric, it places in this lens barrel 14, on this camera lens 15 corresponding be provided with this lens barrel 14 on the assembling external thread 158 that is screwed of assembling internal thread 148, so that this camera lens 15 after assembling, also can be fixed with the fine setting of assembling external thread 158 realization camera lenses 15 by the assembling internal thread 148 that matches.
This lid 16 is covered on this camera lens 15; it in the form of a ring; the external diameter of the internal diameter of this lid 16 and camera lens 15 about equally; the centre of this lid 16 along the circumferential direction punching press downwards forms a bulge loop 162; this bulge loop 162 is resisted against on the protective seam 138 of magnetite 131 of this rotor 130; do axially-movable to limit this magnetite 131; the inner edge upper punch of this lid 16 is provided with some guidance parts 163 that bend inwards and form; these guidance parts 163 also are provided with along the circumferencial direction equi-spaced apart of lid 16 inner edges; and match with groove 143 on this lens barrel 14; do the rotation of circumferencial direction to limit this lens barrel 14 and camera lens 15, can make camera lens 15 accurate contrapositions like this, avoid rocking.
During assembling, the assembling external thread 158 of this camera lens 15 matches with the assembling internal thread 148 of this lens barrel 14, rotates in this lens barrel 14, thereby makes camera lens 15 can realize that fine setting is fixing by the helicitic texture that cooperatively interacts after assembling; The driving external thread 146 of this lens barrel 14 screws togather mutually with the driving internal thread 136 of rotor 130, can guarantee the telescopic moving of camera lens 15; This stator pack 120 places in this pedestal 17, and this rotor 130 is located in the stator 122 of this stator pack 120, and wherein stator 122, the driving collar 133 place respectively on outward flange 181, teat 179 and the inward flange 180 of this bracing frame 173 with lens barrel 14; This lid 16 is covered on this camera lens 15, and makes the bulge loop 162 of this lid 16 replace the protective seam 138 of the magnetite 131 of rotor 130, and this guidance part 163 matches with the groove 143 of lens barrel 14; This pedestal 17 places on this circuit board 11.
As shown in Figure 6, during work, after coil 125 energized of stator pack 120, by the action of a magnetic field of coil 125 with the magnetite 131 of rotor 130, drive rotor 130 around its axis rotation, the driving helicitic texture that is screwed of the driving collar by rotor 130 133 and lens barrel 14 then, under the restriction and guide function of the guidance part 163 of this lid 16, the rotation of rotor 130 is converted into the axially-movable of lens barrel 14 and camera lens 15, stretched inside and outside lid 16 in the lens barrel 14 and the upper end of camera lens 15, and the sharpness by image sensor 112 sensing images, make the electric current of circuit board 11 controls by coil 125, and the stepping angle of cooperation step motor 12, realize the function of focusing automatically.
In the above-mentioned embedded focus lens structure, this lens barrel 14 is provided with and drives external thread 146 and the two helicitic textures that assemble internal thread 148, can match with the driving external thread 146 of lens barrel 14 by the driving internal thread 136 of rotor 130 on the one hand, accurately control the stroke of focus lens structure by the sharpness of image sensor 112 sensing images, realize the function that above-mentioned camera lens 15 is accurately focused automatically, obtain gratifying imaging and resolve effect; The assembling internal thread 148 of lens barrel 14 is screwed with the assembling external thread 158 of camera lens 15 on the other hand, can carry and fixed lens 15, after camera lens 15 assemblings, still can finely tune fixing again according to the needs of assembling allotment simultaneously to camera lens 15, thereby be convenient to assembling, reduce assembling procedure and cost, solved the fine setting problem of camera lens assembling and the resolution problem of imaging effectively.
Claims (9)
1. embedded focus lens structure, comprise stator, be located at the rotor in the stator, the camera lens that is placed in the lens barrel in the rotor and matches with this lens barrel, this camera lens is provided with external thread in its outside surface, this rotor is provided with internal thread in its inside surface, this lens barrel is respectively equipped with internal thread and external thread on its inside surface and outside surface, the internal thread of this lens barrel matches fixing so that camera lens is finely tuned with external thread on the camera lens, the external thread of this lens barrel matches with epitrochanterian internal thread to realize the telescopic moving of camera lens, it is characterized in that: this rotor comprises permanet magnet and is located at the driving collar of this magnetite one end that the internal thread of this rotor is located on the inwall of this driving collar.
2. embedded focus lens structure as claimed in claim 1, it is characterized in that: also comprise the lid that is covered on the camera lens, this lid is provided with some guidance parts that are provided with along the circumferencial direction equi-spaced apart of its inner rim, and this lens barrel is provided with the groove that some and described guidance part matches.
3. embedded focus lens structure as claimed in claim 2 is characterized in that: the middle part of this lid is prominent downwards establishes the formation bulge loop, and this bulge loop is resisted against on this rotor.
4. embedded focus lens structure as claimed in claim 1, it is characterized in that: the other end of this magnetite is provided with protective seam, and this protective seam is made by high-abrasive material.
5. embedded focus lens structure as claimed in claim 1, it is characterized in that: also comprise the pedestal that is used to carry stator and rotor, this pedestal is located at this stator periphery, this pedestal comprises pedestal, is extended upward the housing that forms and be located at bracing frame in this housing by this pedestal, and this stator and rotor are located on this bracing frame.
6. embedded focus lens structure as claimed in claim 5, it is characterized in that: this housing is tubular, four jiaos of this housing are provided with opening, four jiaos of corresponding above-mentioned openings of this pedestal are provided with groove, this bracing frame comprises that one is circular body and some ribs around this body, and described ribs is corresponding with above-mentioned groove and be equipped in the groove so that bracing frame is located.
7. embedded focus lens structure as claimed in claim 6, it is characterized in that: this body comprises the teat of ring-type protruding upward, in its inner rim extend internally inward flange that forms and the outward flange that stretches out and form in its outer rim, and this teat, inward flange and outward flange are respectively applied for carrying rotor, lens barrel and stator.
8. embedded focus lens structure as claimed in claim 5 is characterized in that: this bracing frame and pedestal, housing are one-body molded.
9. embedded focus lens structure as claimed in claim 1, it is characterized in that: also comprise circuit board, this stator, rotor, lens barrel and camera lens are located on this circuit board and this stator is electrically connected with this circuit board, and this circuit board is provided with the image sensor that is electrically connected with circuit board.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101570012A CN100552485C (en) | 2006-11-22 | 2006-11-22 | Embedded focus lens structure |
| JP2007295943A JP2008129597A (en) | 2006-11-22 | 2007-11-14 | Focusing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101570012A CN100552485C (en) | 2006-11-22 | 2006-11-22 | Embedded focus lens structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101191883A CN101191883A (en) | 2008-06-04 |
| CN100552485C true CN100552485C (en) | 2009-10-21 |
Family
ID=39486979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101570012A Expired - Fee Related CN100552485C (en) | 2006-11-22 | 2006-11-22 | Embedded focus lens structure |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2008129597A (en) |
| CN (1) | CN100552485C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103702023B (en) * | 2014-01-01 | 2017-01-11 | 中南林业科技大学 | Camera body with electric control bayonet and single offset sensor |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436049B (en) * | 2010-09-29 | 2013-11-06 | 深圳市锋彩科技发展有限公司 | Lens assembling device |
| CN103595906B (en) * | 2013-11-30 | 2016-06-08 | 中南林业科技大学 | There is the integrated camera lens of two-part and the image acquisition system of single offset sensor fuselage |
| CN103685901B (en) * | 2014-01-01 | 2016-08-24 | 中南林业科技大学 | A kind of image capturing method based on automatically controlled bayonet socket and integrated form camera lens |
| CN104330866B (en) * | 2014-11-25 | 2017-08-04 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of optical lens assembly method |
| JP6286728B2 (en) * | 2015-08-14 | 2018-03-07 | エスゼット ディージェイアイ オスモ テクノロジー カンパニー リミテッドＳＺ ＤＪＩ Ｏｓｍｏ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．， Ｌｔｄ． | Servo system |
| CN108964399A (en) * | 2018-07-24 | 2018-12-07 | 深圳市米成电子有限公司 | A kind of VCM motor stator and mover point plastic structure |
| CN111774996A (en) * | 2020-07-20 | 2020-10-16 | 宋小磊 | Needle-shaped cylinder grinding mechanism for spinning |
| CN113467038B (en) * | 2021-09-04 | 2022-02-18 | 新思考电机有限公司 | Drum driving mechanism and method for lens driving device, and image pickup apparatus |
| CN113534393B (en) * | 2021-09-04 | 2024-04-23 | 新思考电机有限公司 | Lens driving telescopic lens barrel structure, lens driving device and image pickup device |
| CN113777739B (en) * | 2021-09-04 | 2023-12-22 | 新思考电机有限公司 | Lens driving barrel and housing connecting mechanism, lens driving device and image pickup device |
| CN114114600B (en) * | 2021-12-06 | 2024-05-24 | 东莞市维斗科技股份有限公司 | Novel automatic focusing MTV lens module |
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| US20040165877A1 (en) * | 2003-02-21 | 2004-08-26 | Micro-Mototech Corp. | Drive source of a camera lens |
| CN2731481Y (en) * | 2004-09-02 | 2005-10-05 | 鸿富锦精密工业（深圳）有限公司 | Lens cone |
| US20060193064A1 (en) * | 2005-02-28 | 2006-08-31 | Samsung Electro-Mechanics Co., Ltd. | Camera module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4481725B2 (en) * | 2004-05-31 | 2010-06-16 | フジノン株式会社 | Imaging device |
| JP2006041067A (en) * | 2004-07-26 | 2006-02-09 | Matsushita Electric Ind Co Ltd | High polymer heater and manufacturing method thereof |
| JP2006047907A (en) * | 2004-08-09 | 2006-02-16 | Fujinon Corp | Lens driving device and imaging apparatus |
| JP2006091265A (en) * | 2004-09-22 | 2006-04-06 | Fuji Photo Film Co Ltd | Lens driving device, imaging apparatus and optical device |
| JP2006171346A (en) * | 2004-12-15 | 2006-06-29 | Canon Inc | Lens drive device and imaging apparatus equipped with device |
| JP2006178332A (en) * | 2004-12-24 | 2006-07-06 | Alps Electric Co Ltd | Lens driving device |
-
2006
- 2006-11-22 CN CNB2006101570012A patent/CN100552485C/en not_active Expired - Fee Related
-
2007
- 2007-11-14 JP JP2007295943A patent/JP2008129597A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040165877A1 (en) * | 2003-02-21 | 2004-08-26 | Micro-Mototech Corp. | Drive source of a camera lens |
| CN2731481Y (en) * | 2004-09-02 | 2005-10-05 | 鸿富锦精密工业（深圳）有限公司 | Lens cone |
| US20060193064A1 (en) * | 2005-02-28 | 2006-08-31 | Samsung Electro-Mechanics Co., Ltd. | Camera module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103702023B (en) * | 2014-01-01 | 2017-01-11 | 中南林业科技大学 | Camera body with electric control bayonet and single offset sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101191883A (en) | 2008-06-04 |
| JP2008129597A (en) | 2008-06-05 |
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