CN105700272B - Lens anti-shake device with self-locking structure - Google Patents

Abstract

The invention discloses a lens anti-shake device with a self-locking structure, which comprises a base, wherein a support frame is connected on the base, a lens assembly is arranged between the support frame and the base, the lens assembly comprises a lens support seat, a transverse driving assembly and a longitudinal driving assembly are arranged between the base and the lens support seat, the transverse driving assembly comprises a transverse driving magnet assembly and a transverse driving coil, the longitudinal driving assembly comprises a longitudinal driving magnet assembly and a longitudinal driving coil, a transverse induction assembly and a longitudinal induction assembly are also arranged between the support frame and the base, the transverse induction assembly comprises a transverse induction magnet and a transverse induction Hall element, the longitudinal induction assembly comprises a longitudinal induction magnet and a longitudinal induction Hall element, and a self-locking structure which can be separated from or clamped with the lens assembly and is used for switching the working state and the non-working state of the anti. The invention has simple structure, high anti-shake precision and long service life.

Description

A lens anti-shake device with self-locking structure

【Technical field】

The invention relates to a lens anti-shake device with a self-locking structure.

【Background technique】

In the field of optical lenses, anti-shake technology is more and more widely used in environments with relatively large vibrations, such as inside cars, sports cameras and some road monitoring. There are many ways of anti-shake, just change the transmission path of light or the path of light projection. The main products in the industry include lens anti-shake, CCD anti-shake, electronic anti-shake, and whole machine anti-shake.

The implementation of anti-shake is basically achieved by compensation, which compensates for the deviation of light caused by shaking. There is a gyroscope on the anti-shake structure. The device senses the change of external jitter and feeds it back to the chip, so that the anti-shake mechanism moves the corresponding change to compensate. The movement of the anti-shake mechanism is fed back by the Hall element, and its accuracy can be Reach 0.1um. However, there is still a lot of room for improvement in accuracy. In addition, the anti-shake structure of the traditional optical lens needs to be powered on for a long time to keep it in the center. In the energized state, thereby increasing the load of the anti-shake structure and shortening the service life of the anti-shake mechanism.

Therefore, the present invention just produces based on above deficiency.

【Content of invention】

The object of the present invention is to overcome the deficiencies of the prior art and provide a lens anti-shake device with a self-locking structure with simple structure, high anti-shake precision and long service life.

The present invention is achieved through the following technical solutions:

A lens anti-shake device with a self-locking structure, characterized in that it includes a base 1, and the base 1 is connected with a support frame 2 that can move in the lateral direction relative to it, and the support frame 2 and the base 1 There is a lens assembly 3 that can move in the longitudinal direction relative to the support frame 2 and can move in the transverse direction with the support frame 2 relative to the base 1. The lens assembly 3 includes a lens support seat 31 for installing the lens 100 Between the base 1 and the lens support seat 31, a horizontal drive assembly 32 and a longitudinal drive assembly 33 respectively driving the lens assembly 3 to move horizontally and vertically are provided. The horizontal drive assembly 32 includes a The horizontal drive magnet assembly 321 and the horizontal drive coil 322 that is arranged on the base 1 and opposite to the horizontal drive magnet assembly 321, the vertical drive assembly 33 includes the vertical drive magnet assembly 331 and the device that are arranged on the lens support seat 31 The longitudinal driving coil 332 on the base 1 and opposite to the longitudinal driving magnet assembly 331, the horizontal induction assembly 34 and the horizontal induction assembly 34 which can respectively sense the horizontal and vertical movement of the lens assembly 3 are arranged between the support frame 2 and the base 1 The longitudinal sensing assembly 35, the transverse sensing assembly 34 includes a transverse sensing magnet 341 arranged on the lens support base 31 and a transverse sensing Hall element 342 arranged on the base 1 and opposite to the transverse sensing magnet 341, the described The longitudinal induction assembly 35 includes a longitudinal induction magnet 351 disposed on the lens support seat 313 and a longitudinal induction Hall element 352 disposed on the base 1 and opposite to the longitudinal induction magnet 351. The base 1 is also provided with a The self-locking structure 4 used to switch the working state and non-working state of the anti-shake device when the lens assembly 3 is separated or engaged.

The lens anti-shake device with self-locking structure as described above is characterized in that: the self-locking structure 4 includes a motor 41 arranged on the base 1, and the output shaft of the motor 41 is connected with a The lifting part 42 is driven by the motor 41 to move up and down, and the lens support base 31 is provided with a matching stop 43 that can be engaged with or separated from the lifting part 42 .

The lens anti-shake device with a self-locking structure as described above is characterized in that: the output shaft of the motor 41 is provided with external threads, the lifting component 42 includes a lifting sleeve 421, and the inner wall of the lifting sleeve 421 There is an internal thread that cooperates with the external thread on the output shaft of the motor 41. The base 1 is provided with a guide cylinder 44 for the lifting sleeve 421 to move up and down inside. The guide cylinder 44 is provided with a vertical The opening groove 45, the outer wall of the guide cylinder 44 is provided with a guide protrusion 422 extending into the opening groove 45 and cooperating with the opening groove 45 so that the lifting sleeve 421 can only move up and down.

The lens anti-shake device with a self-locking structure as described above is characterized in that: the engaging clamping position 44 is a through hole engaged with the lifting sleeve 421 .

The lens anti-shake device with a self-locking structure as described above is characterized in that: a first induction plate 36 for enhancing the magnetic field strength of the lateral drive magnet assembly 321 is provided between the lateral drive magnet assembly 321 and the lens support seat 31 A second induction sheet 37 for enhancing the magnetic field strength of the longitudinally driving magnet assembly 331 is provided between the longitudinally driving magnet assembly 331 and the lens support seat 31 .

The lens anti-shake device with a self-locking structure as described above is characterized in that the lateral drive magnet assembly 321 includes a first lateral drive magnet 3211 and a second lateral drive magnet 3212 arranged side by side, and the first lateral drive magnet 3212 is arranged side by side. The N pole of the driving magnet 3211 faces the first sensing piece 36 , and the S pole of the second transverse driving magnet 3212 faces the first sensing piece 36 .

The lens anti-shake device with a self-locking structure as described above is characterized in that: the longitudinal driving magnet assembly 331 includes a first longitudinal driving magnet 3311 and a second longitudinal driving magnet 3312 arranged side by side, and the first longitudinal driving magnet 3312 The N pole of the driving magnet 3311 is facing the second sensing piece 37 , and the S pole of the second longitudinal driving magnet 3312 is facing the second sensing piece 37 .

The lens anti-shake device with a self-locking structure as described above is characterized in that: the base 1 is provided with a transverse guide shaft 5, and the support frame 2 is provided with a transverse guide shaft that can slide on the transverse guide shaft 5. Ceramic collar 6.

The lens anti-shake device with a self-locking structure as described above is characterized in that: the support frame 2 is provided with a longitudinal guide shaft 7, and the lens support seat 31 is provided with a The longitudinal ceramic collar 8.

Compared with prior art, the present invention has following advantage:

1. In the present invention, the horizontal drive magnet assembly and the horizontal drive coil are used to drive the lens assembly to move laterally, and the longitudinal drive magnet assembly is used to cooperate with the longitudinal drive coil to drive the lens assembly to move vertically. Cooperate to sense the lateral movement of the lens assembly, and use the longitudinal induction magnet to cooperate with the longitudinal induction Hall element to sense the longitudinal movement of the lens assembly, so as to achieve the anti-shake effect of the optical lens with high anti-shake accuracy. Moreover, the volume of the anti-shake device is reduced, making the structure simpler. And the self-locking structure that can be separated or engaged with the lens assembly on the base can switch the working state and non-working state of the anti-shake device. Therefore, when the anti-shake device of the optical lens is in the anti-shake working state, the self-locking mechanism and The lens assembly is separated, and the lens assembly can move horizontally and vertically. At this time, the anti-shake device is in the power-on state. When the anti-shake device of the optical lens does not need to be in the anti-shake working state, the self-locking mechanism engages with the lens assembly, and the lens assembly It cannot move horizontally or vertically, and the anti-shake device can be powered off at this time. Therefore, the anti-shake device can be powered on and off as required, reducing the load on the anti-shake device and prolonging the service life of the anti-shake device.

2. The output shaft of the motor of the present invention is provided with an external thread, the inner wall of the lifting sleeve is provided with an internal thread that cooperates with the external thread on the output shaft of the motor, and the base is provided with a guide cylinder for the lifting sleeve to move up and down inside. The cylinder is provided with a vertical opening groove, and the outer wall of the guide cylinder is provided with a guiding lug extending into the opening groove and cooperating with the opening groove so that the lifting sleeve can only move up and down. When the motor rotates, since the lifting sleeve is threadedly connected with the output shaft of the motor, and the guide protrusion on the lifting sleeve is stuck in the opening groove, when the motor rotates, the lifting sleeve can only move up and down, thereby completing the contact with the lens support seat. It is very simple to engage or separate the matching card positions and achieve good results.

3. The first transverse drive magnet and the second transverse drive magnet of the present invention are arranged side by side, and the N pole of the first transverse drive magnet faces the first induction sheet, and the S pole of the second transverse drive magnet faces the first induction sheet; the first The longitudinal driving magnet and the second longitudinal driving magnet are arranged side by side, the N pole of the first longitudinal driving magnet faces the second induction piece, and the S pole of the second longitudinal driving magnet faces the second induction piece. The first inductive sheet and the second inductive sheet can respectively enhance the magnetic field intensity of the transversely driven magnet assembly and the longitudinally driven magnet assembly, thereby increasing the driving force and making the anti-shake device run more smoothly and reliably.

4. The base of the present invention is provided with a transverse guide shaft; Longitudinal ceramic collar that slides on the shaft. The combination of the horizontal ceramic collar and the transverse guide shaft, and the cooperation of the longitudinal ceramic collar and the longitudinal guide shaft can greatly reduce wear and prolong the service life.

5. The invention has the advantages of simple structure, high precision and long service life, and is suitable for popularization and application.

【Description of drawings】

Fig. 1 is one of perspective views of the present invention;

Fig. 2 is one of exploded views of the present invention;

Fig. 3 is the second exploded view of the present invention;

Fig. 4 is a side view of the present invention;

Fig. 5 is a sectional view along line A-A in Fig. 4;

Fig. 6 is a sectional view along the line B-B in Fig. 4;

Fig. 7 is the second perspective view of the present invention;

Fig. 8 is a sectional view along line C-C in Fig. 4 .

【detailed description】

The present invention will be further described below in conjunction with accompanying drawing:

As shown in Figures 1 to 3, a lens anti-shake device with a self-locking structure includes a base 1, and the base 1 is connected with a support frame 2 that can move in the lateral direction relative to it, and the support Between the frame 2 and the base 1, there is a lens assembly 3 that can move in the longitudinal direction relative to the support frame 2 and can move in the transverse direction with the support frame 2 relative to the base 1. The lens assembly 3 includes a lens assembly 3 for installing a lens The lens support seat 31, between the base 1 and the lens support seat 31 is provided with a horizontal drive assembly 32 and a longitudinal drive assembly 33 respectively driving the lens assembly 3 to move laterally and vertically, and the horizontal drive assembly 32 includes a The transverse drive magnet assembly 321 on the lens support base 31 and the transverse drive coil 322 provided on the base 1 and opposite to the transverse drive magnet assembly 321, the longitudinal drive assembly 33 includes a longitudinal drive coil located on the lens support base 31 The magnet assembly 331 and the longitudinal drive coil 332 arranged on the base 1 and opposite to the longitudinal drive magnet assembly 331 are also provided between the support frame 2 and the base 1, which can sense the lateral and longitudinal movement of the lens assembly 3 respectively. The transverse induction assembly 34 and the longitudinal induction assembly 35, the transverse induction assembly 34 includes a transverse induction magnet 341 arranged on the lens support base 31 and a transverse induction Hall element arranged on the base 1 and opposite to the transverse induction magnet 341 342, the longitudinal induction assembly 35 includes a longitudinal induction magnet 351 arranged on the lens support seat 313 and a longitudinal induction Hall element 352 arranged on the base 1 and opposite to the longitudinal induction magnet 351, the base 1 There is also a self-locking structure 4 that can be separated or engaged with the lens assembly 3 and used to switch the working state and non-working state of the anti-shake device. The horizontal drive magnet assembly 321 is used to cooperate with the horizontal drive coil 322 to drive the lens assembly 3 to move laterally, and the longitudinal drive magnet assembly 331 is used to cooperate with the longitudinal drive coil 332 to drive the lens assembly 3 to move longitudinally. In addition, the horizontal induction magnet 341 is used to cooperate with the horizontal induction The Hall element 342 cooperates to sense the lateral movement of the lens assembly 3, and the vertical induction magnet 351 cooperates with the longitudinal induction Hall element 352 to sense the longitudinal movement of the lens assembly 3, thereby achieving the anti-shake effect of the optical lens and the anti-shake accuracy high. Moreover, such a structural design also reduces the volume of the anti-shake device, making the structure simpler.

As shown in Fig. 2, Fig. 7 and Fig. 8, the self-locking structure 4 includes a motor 41 arranged on the base 1, and the output shaft of the motor 41 is connected with a motor that is driven by the motor 41 to move up and down when the motor 41 rotates. The lifting and lowering part 42, the lens support seat 31 is provided with a matching card position 43 that can be engaged with or separated from the lifting part 42. The said engaging position 44 is a through hole engaged with the lifting sleeve 421 .

As shown in Figures 7 and 8, the output shaft of the motor 41 is provided with external threads, the lifting member 42 includes a lifting sleeve 421, and the inner wall of the lifting sleeve 421 is provided with a screw thread on the output shaft of the motor 41. The internal thread matched with the external thread, the base 1 is provided with a guide tube 44 for the lifting sleeve 421 to move up and down inside, the guide tube 44 is provided with a vertical opening groove 45, and the guide tube 44 is provided with a vertical opening groove 45. The outer wall of 44 is provided with a guide projection 422 that extends into the opening groove 45 and cooperates with the opening groove 45 so that the lifting sleeve 421 can only move up and down.

As shown in Fig. 2, Fig. 3, Fig. 5, and Fig. 6, a first induction sheet 36 for enhancing the magnetic field strength of the transversely driving magnet assembly 321 is provided between the described transversely driving magnet assembly 321 and the lens support seat 31. A second induction sheet 37 for enhancing the magnetic field strength of the longitudinally driving magnet assembly 331 is provided between the longitudinally driving magnet assembly 331 and the lens support seat 31 .

As shown in Fig. 2, Fig. 3 and Fig. 5, the described transverse drive magnet assembly 321 includes a first transverse drive magnet 3211 and a second transverse drive magnet 3212 arranged side by side, and the N pole of the first transverse drive magnet 3211 Facing the first sensing piece 36 , the S pole of the second transverse driving magnet 3212 faces the first sensing piece 36 .

As shown in Fig. 2, Fig. 3 and Fig. 6, the longitudinal drive magnet assembly 331 includes a first longitudinal drive magnet 3311 and a second longitudinal drive magnet 3312 arranged side by side, and the N pole of the first longitudinal drive magnet 3311 Facing the second sensing piece 37 , the S pole of the second longitudinal driving magnet 3312 faces the second sensing piece 37 .

The first inductive sheet 36 and the second inductive sheet 37 can respectively enhance the magnetic field intensity of the laterally driven magnet assembly 321 and the longitudinally driven magnet assembly 331 , thereby increasing the driving force and making the anti-shake device run more smoothly and reliably.

As shown in Fig. 2, Fig. 3, Fig. 5 and Fig. 6, the base 1 is provided with a transverse guide shaft 5, and the support frame 2 is provided with a transverse ceramic collar capable of sliding on the transverse guide shaft 5 6.

As shown in Figures 2, 3, 5 and 6, the support frame 2 is provided with a longitudinal guide shaft 7, and the lens support seat 31 is provided with a longitudinal ceramic that can slide on the longitudinal guide shaft 7. Collar 8.

The combination of the transverse ceramic collar 6 with the transverse guide shaft 5 and the longitudinal ceramic collar 8 with the longitudinal guide shaft 7 can greatly reduce wear and prolong the service life.

When the motor rotates, because the lifting sleeve 421 is threadedly connected with the output shaft of the motor 41, and the guide projection 422 on the lifting sleeve 421 is stuck in the opening groove 45, therefore, when the motor 41 rotates, the lifting sleeve 421 can only move up and down. In this way, it is very simple to complete the engagement or separation with the matching card position 43 on the lens support seat 31 and achieve good results. The separation or engagement of the lifting sleeve 421 and the matching card position 43 can switch the working state and the non-working state of the anti-shake device. Therefore, when the anti-shake device of the optical lens is in the anti-shake working state, the lifting sleeve 421 is separated from the matching card position 43 , the lens assembly 3 can move horizontally and vertically. At this time, the anti-shake device is in the power-on state, which can play the effect of anti-shake; The locking position 43 is engaged, and the lens assembly 3 cannot move horizontally or vertically, and the anti-shake device can be powered off at this time. Therefore, the anti-shake device can be powered on and off as required, reducing the load on the anti-shake device and prolonging the service life of the anti-shake device.

Claims (7)

1. A kind of 1. eyeglass anti-shake apparatus with self-locking structure, it is characterised in that：Including base (1), described base connects on (1) Having can be relative to the support frame (2) that it is moved in a lateral direction, and being provided between described support frame (2) and base (1) can be relative Support frame (2) movement in a longitudinal direction and the Lens assembly that can be moved in a lateral direction relative to base (1) with support frame (2) (3), described Lens assembly (3) includes being used for the lens support seat (31) for installing eyeglass (100), described base (1) and mirror The laterally driven component (32) for driving Lens assembly (3) horizontal and vertical movement respectively and longitudinal direction are provided between piece support base (31) Drive component (33), described laterally driven component (32) include the laterally driven magnetite component being located on lens support seat (31) (321) it is and be located on base (1) and the laterally driven coil (322) relative with laterally driven magnetite component (321), described Zigzag tread patterns component (33) includes the zigzag tread patterns magnetite component (331) being located on lens support seat (31) and is located at base (1) On and the zigzag tread patterns coil (332) relative with zigzag tread patterns magnetite component (331), described support frame (2) and base (1) Between be additionally provided with the transvercal induction component (34) and longitudinal induction group that can be respectively induced Lens assembly (3) horizontal and vertical amount of movement Part (35), described transvercal induction component (34) include the transvercal induction magnetite (341) being located on lens support seat (31) and set Transvercal induction Hall element (342) on base (1) and relative with transvercal induction magnetite (341), described longitudinal induction Component (35) include the longitudinal induction magnetite (351) being located on lens support seat (313) and be located on base (1) and with longitudinal direction Sense the relative longitudinal induction Hall element (352) of magnetite (351), being additionally provided with described base (1) can be with Lens assembly (3) Separation or the self-locking structure (4) for being used to switch anti-shake apparatus working condition and off working state of engaging, described self-locking structure (4) include being located at motor (41) on base (1), be connected with described motor (41) output shaft when motor (41) rotates by Motor (41) drives and the Lift Part (42) of oscilaltion, and described lens support seat (31) is provided with energy and Lift Part (42) the cooperation screens (43) for engaging or separating, described motor (41) output shaft are provided with external screw thread, described Lift Part (42) lifting set (421) is included, the inwall of described lifting set (421) is provided with matches somebody with somebody with the external screw thread on motor (41) output shaft The internal thread of conjunction, described base (1) are provided with the guide cylinder (44) to be moved up and down inside for lifting set (421), and described leads Vertical open slot (45) is provided with to cylinder (44), the outer wall of described guide cylinder (44), which is provided with, to be stretched into open slot (45) simultaneously The guiding projection (422) for coordinating with open slot (45) and making lifting set (421) to move up and down.
2. 2. the eyeglass anti-shake apparatus according to claim 1 with self-locking structure, it is characterised in that：Described cooperation screens (44) it is with lifting the through hole for covering (421) and engaging.
3. 3. the eyeglass anti-shake apparatus according to claim 1 with self-locking structure, it is characterised in that：Described laterally driven magnetic It is provided between stone component (321) and lens support seat (31) and is used to strengthen the of laterally driven magnetite component (321) magnetic field intensity One sensing chip (36), it is provided between described zigzag tread patterns magnetite component (331) and lens support seat (31) and is used to strengthen longitudinal direction Drive second sensing chip (37) of magnetite component (331) magnetic field intensity.
4. 4. the eyeglass anti-shake apparatus according to claim 3 with self-locking structure, it is characterised in that：Described laterally driven magnetic Stone component (321) includes the first laterally driven magnetite (3211) and the second laterally driven magnetite (3212) being arranged side by side, described The first laterally driven magnetite (3211) N poles towards the first sensing chip (36), the described second laterally driven magnetite (3212) S poles towards the first sensing chip (36).
5. 5. the eyeglass anti-shake apparatus according to claim 3 with self-locking structure, it is characterised in that：Described zigzag tread patterns magnetic Stone component (331) includes the first longitudinal direction driving magnetite (3311) being arranged side by side and second longitudinal direction driving magnetite (3312), described First longitudinal direction driving magnetite (3311) N poles towards the second sensing chip (37), described second longitudinal direction driving magnetite (3312) S poles towards the second sensing chip (37).
6. 6. the eyeglass anti-shake apparatus according to claim 1 with self-locking structure, it is characterised in that：On described base (1) Provided with horizontal guide shaft (5), described support frame (2) is provided with the ceramic collar of transverse direction (6) that can be slided on horizontal guide shaft (5).
7. 7. the eyeglass anti-shake apparatus according to claim 1 with self-locking structure, it is characterised in that：Described support frame (2) Longitudinal guide shaft (7) is provided with, described lens support seat (31) is provided with the longitudinal ceramic jacket that can be slided on longitudinal guide shaft (7) Ring (8).