CN219143247U

CN219143247U - Lens shake correction device

Info

Publication number: CN219143247U
Application number: CN202223388258.2U
Authority: CN
Inventors: 左罗; 郑国军
Original assignee: Jinhua Maize Optoelectronic Technology Co ltd
Current assignee: Jinhua Maize Optoelectronic Technology Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-06-06
Anticipated expiration: 2032-12-16

Abstract

The utility model discloses a lens shake correction device, which comprises a vibration-proof seat, wherein a fixed base is arranged in the vibration-proof seat, a pressing plate is arranged above the fixed base, the pressing plate is fixed with the fixed base through screws, and a flat cable is arranged at the bottom of the fixed base; further comprises: the moving assembly is arranged between the pressing plate and the fixed base, and comprises a magnet assembly, an induction coil, a lens seat and a plate spring, wherein a lens is fixedly arranged in the lens seat; the vibration-proof assembly is arranged between the vibration-proof seat and the fixed base, is provided with six groups and is distributed in an annular equidistant mode, and in this way, the lens correction device can ensure the compensation effect on the lens under the condition of large vibration amplitude.

Description

Lens shake correction device

Technical Field

The utility model relates to the technical field of optical lenses, in particular to a lens shake correction device.

Background

The lens can be widely applied to various fields of security protection, vehicle-mounted, digital cameras, lasers, optical instruments and the like, and along with the continuous development of the market, the lens technology is also more and more widely applied. The lens is made according to the refraction law of light. A lens is an optical element made of a transparent substance. The lens is a refractive mirror, and the refractive surface of the lens is two spherical surfaces or a transparent body with one spherical surface and one plane.

For example, chinese patent publication No. CN211670756U, entitled "a voice coil motor structure", which comprises a housing, a lens holder movably fitted in the housing, a driving coil fitted on a peripheral wall of the lens holder, and at least one driving magnet fixed on a side wall of the housing, wherein the voice coil motor structure further comprises a first elastic sheet, an inner end and an outer end of the first elastic sheet are respectively connected with the lens holder and the housing, and a strain film is coated on a surface of the first elastic sheet. According to the utility model, the actual movement track of the lens bracket can be fed back by arranging the first elastic sheet and the strain film, so that the movement track of the lens bracket is more accurate, and the focusing of the utility model is quicker and more accurate.

The above-mentioned prior art can realize the correction to the lens position, but is only suitable for the situation that the shake amplitude is smaller, along with the increase of the shake amplitude, the adjustment speed of the lens position can not compensate according to the shake, thus influence the imaging effect, so do not satisfy the existing demand, we propose a lens shake correction device to this.

Disclosure of Invention

The present utility model is directed to a lens shake correction device, which solves the problem that the lens shake correction device proposed in the above background art cannot ensure the lens compensation effect under the condition of large shake amplitude.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the lens shake correction device comprises a vibration-proof seat, wherein a fixed base is arranged in the vibration-proof seat, a pressing plate is arranged above the fixed base, the pressing plate is fixed with the fixed base through screws, and a flat cable is arranged at the bottom of the fixed base; further comprises:

the moving assembly is arranged between the pressing plate and the fixed base, and comprises a magnet assembly, an induction coil, a lens seat and a plate spring, wherein a lens is fixedly arranged in the lens seat;

the vibration-proof assemblies are arranged between the vibration-proof seat and the fixed base, and the vibration-proof assemblies are provided with six groups and distributed in annular equidistant mode.

Preferably, the induction coil is fixed with the fixing base, the magnet assembly is located above the induction coil, the magnet assembly is composed of two magnetic poles, the magnetism between the two magnetic poles is opposite, the induction coil is electrified to form electromagnetic force between the magnetic poles, one magnetic pole is fixed with the lens base first, and the other magnetic pole is fixed with the fixing base.

Preferably, the plate spring is located above the magnet assembly, and the lens holder is fixed with the pressing plate through the plate spring.

Preferably, balance steel balls are arranged in the leaf springs, and the upper end faces of the balance steel balls are attached to the pressing plate.

Preferably, the vibration-proof assembly comprises a damping buffer and a spring, wherein the fixed end of the damping buffer is fixed with the vibration-proof seat, the telescopic end of the damping buffer is fixed with the fixed base, and the two ends of the spring are respectively fixed with the vibration-proof seat and the fixed base.

Preferably, mounting lugs are fixedly arranged at four corners of the outer part of the vibration-proof seat.

Compared with the prior art, the utility model has the beneficial effects that:

1. the lens seat is fixed with the pressing plate through the sheet spring, so that the lens is suspended in the fixed base through the sheet spring, and can move relative to the fixed base under the action of the elastic force of the sheet spring.

2. According to the utility model, the vibration-proof seat is arranged outside the fixed base, the vibration-proof seat is fixed in the imaging equipment through the mounting lugs, when severe vibration occurs during shooting, vibration force is transmitted to the damping buffer and the spring through the vibration-proof seat, both the damping buffer and the spring shrink, the spring elastically deforms in the shrinking process, the conversion of the vibration force is realized under the deformation effect, so that the vibration force transmitted to the fixed base can be greatly reduced, the amplitude of vibration is reduced, the accurate compensation of the motion assembly is ensured, and meanwhile, under the effect of the damping buffer, the spring is kept at a constant speed slowly during rebound, and the integral instability caused by rapid rebound is avoided.

Drawings

FIG. 1 is an exploded view of the present utility model;

FIG. 2 is a perspective view of the motion assembly of the present utility model;

FIG. 3 is a top view of the present utility model;

fig. 4 is an enlarged view of a portion of area a of fig. 3 in accordance with the present utility model.

In the figure: 1. a pressing plate; 2. a motion assembly; 3. a fixed base; 4. a flat cable; 5. a magnet assembly; 6. an induction coil; 7. a lens holder; 8. a leaf spring; 9. balancing steel balls; 10. a vibration-proof seat; 11. a mounting ear; 12. a lens; 13. a vibration prevention assembly; 14. a damping buffer; 15. and (3) a spring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, an embodiment of the present utility model is provided: the lens shake correction device comprises a vibration-proof seat 10, wherein a fixed base 3 is arranged in the vibration-proof seat 10, a pressing plate 1 is arranged above the fixed base 3, the pressing plate 1 and the fixed base 3 are fixed through screws, and a flat cable 4 is arranged at the bottom of the fixed base 3; further comprises:

a moving assembly 2 disposed between the pressing plate 1 and the fixed base 3, the moving assembly 2 including a magnet assembly 5, an induction coil 6, a lens holder 7 and a leaf spring 8, the lens holder 7 being fixedly provided with a lens 12 inside;

and vibration prevention assemblies 13, which are arranged between the vibration prevention seat 10 and the fixed base 3, wherein the vibration prevention assemblies 13 are provided with six groups and are distributed in an annular equidistant manner.

When the lens 12 deviates from a preset position due to shaking in the use process, an electromagnetic field is generated between the induction coil 6 and the magnet assembly 5 after the induction coil 6 is powered on, and the size and the direction of the electromagnetic field between the magnet assembly 5 are controlled by the induction coil 6, so that the magnet assembly 5 drives the lens 12 to restore to a conventional imaging position under the action of the electromagnetic field, the innovation elements of the patent are improved for saving the space, and the conventional mechanisms such as the flat cable 4 and the like are not repeated.

Referring to fig. 1 and 2, the induction coil 6 is fixed to the fixing base 3, the magnet assembly 5 is located above the induction coil 6, the magnet assembly 5 is composed of two magnetic poles, the magnetic polarities of the two magnetic poles are opposite, the induction coil 6 is powered on to form electromagnetic force between the magnetic poles, one magnetic pole is fixed to the lens holder 7 first, and the other magnetic pole is fixed to the fixing base 3.

Referring to fig. 1 and 2, the plate spring 8 is located above the magnet assembly 5, and the lens holder 7 is fixed to the pressing plate 1 by the plate spring 8, so that the lens 12 is suspended in the fixing base 3 by the plate spring 8, and the lens 12 can move relative to the fixing base under the elastic force of the plate spring 8.

Referring to fig. 2, balance steel balls 9 are disposed in the leaf springs 8, and the upper end surfaces of the balance steel balls 9 are attached to the pressing plate 1, so as to improve stability of movement.

Referring to fig. 3 and 4, the vibration isolation assembly 13 includes a damping buffer 14 and a spring 15, wherein a fixed end of the damping buffer 14 is fixed to the vibration isolation seat 10, a telescopic end of the damping buffer 14 is fixed to the fixed base 3, and two ends of the spring 15 are respectively fixed to the vibration isolation seat 10 and the fixed base 3, so that vibration force transferred to the fixed base 3 is greatly reduced, and the amplitude of vibration is reduced.

Referring to fig. 3, mounting lugs 11 are fixedly arranged at four corners of the outer part of the vibration-proof seat 10, so that the vibration-proof seat is convenient to mount with forming equipment.

Working principle: when the vibration-proof device is used, when the lens 12 deviates from a preset position due to vibration in the use process, an electromagnetic field is generated between the induction coil 6 and the magnet assembly 5 after the induction coil 6 is powered on, and the size and the direction of the electromagnetic field between the magnet assembly 5 are changed through the induction coil 6, so that the magnet assembly 5 drives the lens 12 to restore to a normal imaging position under the action of the electromagnetic field, vibration force can be transmitted to the damping buffer 14 and the spring 15 through the vibration-proof seat 10 when severe vibration occurs in shooting, the damping buffer 14 and the spring 15 are contracted, the spring 15 is elastically deformed in the contraction process, the transformation of the vibration force is realized under the deformation action, the vibration force transmitted to the fixed base can be greatly reduced, the vibration amplitude of the vibration-proof device is ensured to accurately compensate, and meanwhile, the spring 15 is kept slow at a constant speed during rebound under the action of the damping buffer 14, so that the whole instability caused by rapid rebound is avoided.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a lens shake correcting unit, includes vibration-proof seat (10), the inside of vibration-proof seat (10) is provided with unable adjustment base (3), the top of unable adjustment base (3) is provided with clamp plate (1), and is fixed through the screw between clamp plate (1) and unable adjustment base (3), the bottom of unable adjustment base (3) is provided with winding displacement (4);

the method is characterized in that: further comprises:

the motion assembly (2) is arranged between the pressing plate (1) and the fixed base (3), the motion assembly (2) comprises a magnet assembly (5), an induction coil (6), a lens seat (7) and a leaf spring (8), and a lens (12) is fixedly arranged in the lens seat (7);

the vibration-proof assemblies (13) are arranged between the vibration-proof seat (10) and the fixed base (3), and the vibration-proof assemblies (13) are arranged in six groups and distributed in annular equidistant mode.

2. A lens shake correction apparatus according to claim 1, wherein: the induction coil (6) is fixed with the fixed base (3), the magnet assembly (5) is located above the induction coil (6), the magnet assembly (5) is composed of two magnetic poles, the magnetism between the two magnetic poles is opposite, the induction coil (6) is electrified to form electromagnetic force between the magnetic poles, one magnetic pole is fixed with the lens seat (7) first, and the other magnetic pole is fixed with the fixed base (3).

3. A lens shake correction apparatus according to claim 2, wherein: the plate spring (8) is positioned above the magnet assembly (5), and the lens seat (7) is fixed with the pressing plate (1) through the plate spring (8).

4. A lens shake correction apparatus according to claim 3, wherein: balance steel balls (9) are arranged in the plate springs (8), and the upper end faces of the balance steel balls (9) are attached to the pressing plate (1).

5. A lens shake correction apparatus according to claim 1, wherein: the vibration prevention assembly (13) comprises a damping buffer (14) and a spring (15), wherein the fixed end of the damping buffer (14) is fixed with the vibration prevention base (10), the telescopic end of the damping buffer (14) is fixed with the fixed base (3), and the two ends of the spring (15) are respectively fixed with the vibration prevention base (10) and the fixed base (3).

6. A lens shake correction apparatus according to claim 1, wherein: mounting lugs (11) are fixedly arranged at four corners of the outer part of the vibration-proof seat (10).