CN201749245U - Lens device - Google Patents

Lens device Download PDF

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Publication number
CN201749245U
CN201749245U CN2009202603949U CN200920260394U CN201749245U CN 201749245 U CN201749245 U CN 201749245U CN 2009202603949 U CN2009202603949 U CN 2009202603949U CN 200920260394 U CN200920260394 U CN 200920260394U CN 201749245 U CN201749245 U CN 201749245U
Authority
CN
China
Prior art keywords
spring
lens module
camera lens
inner ring
outer ring
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.)
Expired - Lifetime
Application number
CN2009202603949U
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Chinese (zh)
Inventor
董乐平
范婧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AAC Technologies Holdings Shenzhen Co Ltd
AAC Microtech Changzhou Co Ltd
AAC Optoelectronic Changzhou Co Ltd
Original Assignee
AAC Acoustic Technologies Shenzhen Co Ltd
AAC Optoelectronic Changzhou Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AAC Acoustic Technologies Shenzhen Co Ltd, AAC Optoelectronic Changzhou Co Ltd filed Critical AAC Acoustic Technologies Shenzhen Co Ltd
Priority to CN2009202603949U priority Critical patent/CN201749245U/en
Application granted granted Critical
Publication of CN201749245U publication Critical patent/CN201749245U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to the field of lenses, in particular to a distance-adjustable lens device which comprises a lens module, a casing for receiving the lens module, and a magnetic drive mechanism in a receiving space formed by the lens module and the casing, wherein the magnetic drive mechanism includes a leaf spring for providing a restoring force; the leaf spring consists of an outer ring connected with the casing, an inner ring connected with and adapted to the lens module, and a bent spring rib set between the outer ring and the inner ring; the spring rib set has at least one end connected with the outer ring and at least two ends connected with the inner ring so as to limit rotation of the lens module during a moving process; moreover, a plane area formed by the leaf spring at least has a pair of symmetric lines vertical to each other so as to ensure complete symmetry of the leaf spring and provide a stable restoring force for the lens module, particularly adapted to the lens module of a square cylinder structure; therefore, the device is movable along an optical axis direction of the lens without rotation in case of an original space and has excellent anti-shake performance.

Description

Lens assembly
[technical field]
The utility model relates to the camera lens field, specifically refers to a kind of lens assembly that can adjustable range.
[background technology]
Along with the development of camera technique, the camera lens module is widely used in the camera head of various uses, and combining of camera lens module and various portable electron devices such as mobile phone, video camera, computer etc. obtains consumer's favor especially.
For taking the image of different amplification, the camera lens module requires to have zoom function usually, and desire realizes that the distance that zoom function need drive between camera lens module and the imaging material object changes.The conventional lenses drive unit, it comprises the camera lens module, accommodate the housing of camera lens module, form a receiving space jointly by camera lens module and housing, also have an end to be connected in housing, the elastomeric element that the other end links to each other with the camera lens module, place in the receiving space and be connected in coil on the camera lens module, place magnetic bowl and the magnet that links to each other with the magnetic bowl in the receiving space, coil places the space cutting magnetic line of magnet to obtain driving force, the general camera lens module that drives lens assembly is a cylinder type, two ends up and down at the camera lens module are equiped with elastomeric element, for cylinder type camera lens module provides the restoring force of returning original position, but when the camera lens module is the square tubular structure, owing to be subjected to the restriction of inner space, the camera lens module of its square can not be as moving that cylinder type camera lens module rotates, it must be camera lens module axial direction moving without spin, and this elastomeric element that just needs a kind of new structure is adapted and restoring force is provided with it.
[utility model content]
The utility model is subjected to the restriction in space at solving existing square camera lens, can not rotate the problem that moves in the axial direction, and a kind of lens assembly of new structure is provided.
Lens assembly of the present utility model, comprise the camera lens module, accommodate the housing of camera lens module, place the magnetic circuit driving mechanism in the receiving space that constitutes by camera lens module and housing, this magnetic circuit driving mechanism comprises that an end support housing other end is connected the sheet spring assembly of the sheet spring composition of adapted with the camera lens module, wherein said spring comprises the outer ring that is connected with housing, the inner ring that is connected adapted with the camera lens module, and between outer ring and inner ring, be provided with at least one pair of bending provide the spring muscle group of restoring force for the camera lens module, described spring muscle group has at least an end to be connected with the outer ring, has at least two ends to be connected with inner ring; The plane domain of described spring formation has a pair of orthogonal line of symmetry at least.
Preferably, described spring assembly comprises last slice spring and the following spring that is connected the camera lens module that is connected camera lens module top.
The sheet spring that described spring assembly comprises is made of half sheet spring two symmetries and discontiguous each other, and described half sheet spring is provided with a spring muscle group at least.
Spring muscle group in described spring comprises at least two spring muscle monomers, and described spring muscle monomer is symmetrical.
Described last slice spring is crisscross arranged with following sheet spring, makes the spring muscle group that comprises not overlapping.
Lens assembly of the present utility model, comprise the camera lens module, accommodate the camera lens module housing, place the magnetic circuit driving mechanism in the receiving space that constitutes by camera lens module and housing, this magnetic circuit driving mechanism comprises provides the sheet of restoring force spring, described spring comprise the outer ring that is connected with housing, be connected the inner ring of adapted with the camera lens module, and outer ring and inner ring between be provided with crooked spring muscle group, described spring muscle group has at least an end to be connected with the outer ring, has at least two ends to be connected with inner ring; Rotate in moving process with restriction camera lens module, and the plane domain of described spring formation has a pair of orthogonal line of symmetry at least, make the sheet spring structure symmetrical fully, for the camera lens module provides stable restoring force, especially can with the camera lens module adapted of square tubular structure, make it under the situation in reason space, what need not to rotate moves along the camera lens optical axis direction, and has good anti-trembling function.
[description of drawings]
Fig. 1 is the cross-sectional view of the utility model lens assembly;
Fig. 2 is the blast structural representation of the utility model first embodiment;
Fig. 3 is last slice spring structure synoptic diagram of the utility model first embodiment;
Fig. 4 is the front view of Fig. 3;
Fig. 5 is the following spring structure synoptic diagram of the utility model first embodiment;
Fig. 6 is the front view of Fig. 5;
Fig. 7 is for being the sheet spring structure synoptic diagram of the utility model second embodiment;
Fig. 8 is for being another sheet spring structure synoptic diagram of the utility model second embodiment.
[embodiment]
The utility model is described in further detail below in conjunction with drawings and embodiments.
As shown in Figure 1, cross-sectional view for the utility model lens assembly, it comprises camera lens module 20, accommodates the housing 10 of camera lens module 20, places the magnetic circuit driving mechanism 30 in the receiving space that is made of camera lens module 20 and housing 10, magnetic circuit driving mechanism 30 comprises that the magnetic bowl, the end that place in the receiving space are suspended at the other end in the magnetic bowl and are immobilizated in coil on the camera lens module 20, fits to be fixed on magnet in the magnetic bowl; This driving mechanism 30 comprises the sheet spring assembly that connects camera lens module 20, promptly is fixed on last slice spring 41 on camera lens module 20 tops and is fixed on following spring 42 of camera lens module bottom; Certainly also can fix a sheet spring according to actual needs on camera lens module 20; An end support housing 10 other ends that constitute the sheet spring of sheet spring assembly connect camera lens module 20; After sheet spring conducting electrical signals, on the coil that electrical signal transfer is given with camera lens module 20 is connected, coil produces magnetic field and magnet under the energising situation magnetic field attracts each other or repels and produces vibration, thereby regulate the position of camera lens module 20, after electric signal disappeared, the restoring force that the sheet spring provides resetted camera lens module 20.
As Fig. 2,3,4, shown in 5 and 6, be first embodiment of the present utility model, it comprises camera lens module 20, accommodate the housing 10 that constitutes by loam cake 11 and lower house 12 of camera lens module 20, place the magnetic circuit driving mechanism 30 in the receiving space that constitutes by camera lens module 20 and housing 10, be respectively arranged with the sheet spring in camera lens module 20 upper and lowers, promptly go up a spring 41 and following sheet spring 42, last slice spring 41 comprises the outer ring 413 that is connected with loam cake 11, be connected with camera lens module 20 and be provided with crooked constituting between the inner ring 411 of adapted and outer ring 413 and the inner ring 411 for camera lens module 20 provides the spring muscle group 4120 of restoring force, described spring muscle group 4120 has an end 41201 to be connected with outer ring 413, there are two ends 41202 to be connected with inner ring 411, certainly spring muscle group 4120 also can be provided with a plurality of end points that are connected with inner ring 411 or outer ring 413, spring muscle group 4120 between inner ring 411 and the outer ring 413 is more than one group, present embodiment medi-spring muscle group 4120 is four groups, and every group has two spring muscle monomers 412, promptly, be respectively the first spring muscle monomer 4121 as Fig. 4 finding, the second spring muscle monomer 4122, the 3rd spring muscle monomer 4123, the 4th spring muscle monomer 4124, the 5th spring muscle monomer 4125, the 6th spring muscle monomer 4126, the 7th spring muscle monomer 4127, the 8th spring muscle monomer 4128; Because each spring muscle group 4120 all is connected with inner ring 411 or outer ring 413, cause after the inner outage of lens assembly, camera lens module 20 is under the restoring force effect that last spring 41 provides, the rotation of the end points restriction inner ring 411 that connects, always driving camera lens module 20 can only move in the camera lens optical axis direction, and this also is the camera lens module 20 needed effects of square tubular; In addition, the plane domain that last slice spring 41 constitutes has two pairs of orthogonal line of symmetries, it is symmetrical fully with regional relative two orthogonal rotational symmetry lines or two orthogonal diagonal line that inner ring 411, outer ring 413 and spring muscle monomer 412 constitute promptly to go up a spring 41, eight spring muscle monomer 412 relative rotational symmetry lines or diagonal line are symmetrically distributed, for camera lens module 20 provides stable restoring force.Shown in above-mentioned figure, present embodiment also comprises sheet spring 42 down, following sheet spring 42 and last slice spring 41 structure basically identicals, comprise the outer ring 423 that is connected with lower house 12, be connected with camera lens module 20 and be provided with constituting of four pairs of bendings between the inner ring 421 of adapted and outer ring 423 and the inner ring 421 for camera lens module 20 provides the spring muscle group of restoring force, described spring muscle group has an end to be connected with outer ring 423, there are two ends to be connected with inner ring 421, to prevent inner ring 421 rotations, each spring muscle group comprises two spring muscle monomers 422, certainly the spy can a plurality of as required spring muscle monomers 422, and each spring muscle monomer 422 is symmetrically set; The plane domain that described sheet spring down 42 constitutes has two pairs of orthogonal line of symmetries, and promptly orthogonal rotational symmetry line and two orthogonal diagonal line provide stable restoring force to ensure to the camera lens module, have good anti-shake effect.What following sheet spring 42 was different with last slice spring 41 structures is: following sheet spring 42 integral body are made of half sheet spring 401,402 two symmetries and discontiguous each other, described like this half sheet spring 401,402 is respectively equipped with two spring muscle groups, has two pairs of line of symmetries to guarantee down sheet spring 42 integral body; And be respectively equipped with the pin 424 of conducting function on the described half sheet spring 401,402, discontiguous so each other half sheet spring 401,402 just can constitute an electric loop, for the camera lens module provides electric signal.Certainly, the position of last slice spring 41 and following sheet spring 42 can exchange, and the sheet spring of two last slice spring 41 structures perhaps is set in lens assembly, but each sheet spring all need be provided with conductive base pin to satisfy the demand of conducting electrical signals.Spring muscle monomer 412,422 settings in the present embodiment in last slice spring 41 and the following sheet spring 42 symmetrically, and only allow inner ring 411,421 to move axially, stable restoring force is provided, can with camera lens module 20 adapteds of square tubular structure, certainly also can with the camera lens module adapted of cylinder-like structure.
Shown in Fig. 7,8, be last slice spring among the utility model second embodiment 43 and following sheet spring 44 structural representations, the position of last slice spring 43 and following sheet spring 44 can exchange certainly.Described last slice spring 43 comprises outer ring 433, the spring muscle group 4320 that is provided with two bendings between inner ring 411 and outer ring 413 and the inner ring 411 constitutes, described spring muscle group 4320 has an end 43201 to be connected with outer ring 433, there are two ends 43202 to be connected with inner ring 431, certainly spring muscle group 4320 also can be provided with a plurality of end points that are connected with inner ring 431 or outer ring 433, spring muscle group 4320 between inner ring 431 and the outer ring 433 is more than one group, present embodiment medi-spring muscle group 4320 is two groups, and every group has two spring muscle monomers 432, promptly, comprise the first spring muscle monomer 4321 as Fig. 4 finding, the second spring muscle monomer 4322, the 3rd spring muscle monomer (not indicating), the 4th spring muscle monomer (not indicating); Because each spring muscle group 4320 all is connected with inner ring 411 or outer ring 413, cause after the inner outage of lens assembly, the camera lens module is under the restoring force effect that last spring 43 provides, the rotation of the end points restriction inner ring 431 that connects, always driving the camera lens module can only move in the camera lens optical axis direction, and this also is the needed effect of camera lens module of square tubular; In addition, the plane domain that last slice spring 43 constitutes has a pair of orthogonal line of symmetry, and it is symmetrical respectively about two orthogonal rotational symmetry lines promptly to go up a spring 43, and this provides stable restoring force for the camera lens module.The structure of following sheet spring 44 and last slice spring basically identical, difference is down that sheet spring 44 is for can conducting electrical signals, following sheet spring 44 integral body are made of half sheet spring 403,404 two symmetries and discontiguous each other, described like this half sheet spring 401,402 is respectively equipped with a spring muscle group 4320, and symmetrically; Be respectively equipped with the pin 444 of conducting function on the described half sheet spring 403,404.The sheet spring of this structure is owing to only be provided with two spring muscle groups 4320, each spring muscle group 4320 has only two spring muscle monomers 432 or 442, so 4320 symmetria bilateralis settings of spring muscle group in square inner ring 431 or 441, in order to make the camera lens module can obtain stable restoring force, spring 43 and following sheet spring 44 are crisscross arranged on it, make the spring muscle group that comprises not overlapping.The sheet spring of two last slice spring 43 structures certainly can be set, but each sheet spring all need be provided with conductive base pin to satisfy the demand of conducting electrical signals in lens assembly.
The utility model especially can with camera lens module 20 adapteds of square tubular structure, make it under the situation in reason space, what need not to rotate moves along the camera lens optical axis direction is stable, and has good anti-trembling function.
Above-described only is embodiment of the present utility model; should be pointed out that for the person of ordinary skill of the art at this, under the prerequisite that does not break away from the utility model creation design; can also make improvement, but these all belong to protection domain of the present utility model.

Claims (5)

1. lens assembly, comprise the camera lens module, accommodate the housing of camera lens module, place the magnetic circuit driving mechanism in the receiving space that constitutes by camera lens module and housing, this magnetic circuit driving mechanism comprises that an end support housing other end is connected the sheet spring assembly of the sheet spring composition of adapted with the camera lens module, it is characterized in that: described spring comprises the outer ring that is connected with housing, the inner ring that is connected adapted with the camera lens module, and between outer ring and inner ring, be provided with at least one pair of bending provide the spring muscle group of restoring force for the camera lens module, described spring muscle group has at least an end to be connected with the outer ring, has at least two ends to be connected with inner ring; The plane domain of described spring formation has a pair of orthogonal line of symmetry at least.
2. lens assembly according to claim 1 is characterized in that: described spring assembly comprises last slice spring and the following spring that is connected the camera lens module that is connected camera lens module top.
3. lens assembly according to claim 1 is characterized in that: the sheet spring that described spring assembly comprises is made of half sheet spring two symmetries and discontiguous each other, and described half sheet spring is provided with a spring muscle group at least.
4. according to claim 1 or 3 described lens assemblies, it is characterized in that: the spring muscle group in described spring comprises at least two spring muscle monomers, and described spring muscle monomer is symmetrical.
5. lens assembly according to claim 2 is characterized in that: described last slice spring is crisscross arranged with following sheet spring, makes the spring muscle group that comprises not overlapping.
CN2009202603949U 2009-11-16 2009-11-16 Lens device Expired - Lifetime CN201749245U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202603949U CN201749245U (en) 2009-11-16 2009-11-16 Lens device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202603949U CN201749245U (en) 2009-11-16 2009-11-16 Lens device

Publications (1)

Publication Number Publication Date
CN201749245U true CN201749245U (en) 2011-02-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009202603949U Expired - Lifetime CN201749245U (en) 2009-11-16 2009-11-16 Lens device

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107277338A (en) * 2017-08-14 2017-10-20 河南省皓泽电子有限公司 A kind of automatic focusing mechanism with shake blur correcting structure
CN107450251A (en) * 2017-08-25 2017-12-08 高瞻创新科技有限公司 A kind of spring system and the camera lens anti-shake apparatus using the spring system
CN111812911A (en) * 2020-08-31 2020-10-23 瑞声通讯科技(常州)有限公司 Optical image anti-shake device, camera, and portable electronic apparatus
CN113395426A (en) * 2021-06-18 2021-09-14 新思考电机有限公司 Driving device, camera module and electronic equipment

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107277338A (en) * 2017-08-14 2017-10-20 河南省皓泽电子有限公司 A kind of automatic focusing mechanism with shake blur correcting structure
CN107450251A (en) * 2017-08-25 2017-12-08 高瞻创新科技有限公司 A kind of spring system and the camera lens anti-shake apparatus using the spring system
WO2019037162A1 (en) * 2017-08-25 2019-02-28 高瞻创新科技有限公司 Spring system and lens anti-shaking device using same
CN111812911A (en) * 2020-08-31 2020-10-23 瑞声通讯科技(常州)有限公司 Optical image anti-shake device, camera, and portable electronic apparatus
CN113395426A (en) * 2021-06-18 2021-09-14 新思考电机有限公司 Driving device, camera module and electronic equipment

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GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20110216