CN116300268A - Automatic focusing structure and camera device thereof - Google Patents
Automatic focusing structure and camera device thereof Download PDFInfo
- Publication number
- CN116300268A CN116300268A CN202310023034.1A CN202310023034A CN116300268A CN 116300268 A CN116300268 A CN 116300268A CN 202310023034 A CN202310023034 A CN 202310023034A CN 116300268 A CN116300268 A CN 116300268A
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- Prior art keywords
- ball
- groove
- connecting plate
- balls
- auto
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- 239000011324 bead Substances 0.000 claims description 35
- 230000003287 optical effect Effects 0.000 claims description 14
- 239000000428 dust Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 description 4
- 241000237983 Trochidae Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
The invention relates to the technical field of camera shooting, in particular to an automatic focusing structure and a camera shooting device thereof, wherein the automatic focusing structure comprises a lens seat, a ball seat, a sliding component, a magnetic conduction component, a driving coil, a position sensor and a driving magnet, and the lens seat is provided with an inner connecting plate; the ball seat is slidably arranged in the lens seat; the ball seat is provided with an outer connecting plate corresponding to the inner connecting wall; the sliding component is arranged between the inner connecting plate and the outer connecting plate; the magnetic conduction assembly is arranged on the external connection plate; the driving coil is arranged on the external board; the position sensor is arranged on the external board; the driving magnet is arranged on the inner connecting plate. The invention has compact structure, avoids the mutual influence of different types of magnets, and realizes a small-volume automatic focusing structure.
Description
Technical Field
The present invention relates to the field of imaging technologies, and in particular, to an automatic focusing structure and an imaging device thereof.
Background
The conventional ball motor adopts a plurality of balls, and when dimensional errors occur in the balls and the ball grooves or abrasion is caused by friction, the optical axis of the lens is easy to incline. The ball motor with partial automatic focusing adopts balls with different sizes, and only three to four balls cling to the ball grooves during automatic ball movement, so that the problem that the optical axis of the lens is easy to incline is reduced. However, the use of balls of different sizes causes difficulty in production, resulting in an increase in production cost. On the other hand, because the forward force of the big ball closely attached to the ball groove is inconsistent, the abrasion range of the ball groove caused by friction of the big ball is different, and the problem that the optical axis of the lens is easy to incline after long-time movement is caused.
Disclosure of Invention
The invention aims to provide a lens capable of realizing rapid and accurate focusing, which has a compact structure and can effectively reduce the problems of inclination and deviation of an optical axis caused by abrasion after multiple automatic focusing movements.
In order to achieve the above object, the present invention provides an auto-focusing structure comprising:
a housing;
the lens seat is arranged in the shell and is provided with an external connecting plate;
the coil seat is arranged in the shell and is provided with an inner connecting plate corresponding to the outer connecting plate;
the driving coil is arranged on the inner connecting plate;
the driving magnet is arranged on the outer connecting plate;
the sliding component is arranged between the inner connecting plate and the outer connecting plate; the sliding assembly comprises three balls, wherein the three balls form a triangular surface, and the triangular surface is provided with a first base line; the first base line connects two closest balls to each other of the three balls;
the magnetic conduction assembly is arranged on the inner connecting plate; a magnetic attraction force is generated between the magnetic conduction assembly and the driving magnet; the magnetic attraction points are arranged at the intersections of the magnetic attraction points and the triangular faces; the magnetic attraction point satisfies the following conditions: e is less than or equal to f multiplied by 45 percent; wherein e is the minimum distance from the magnetic attraction point to the first base line, and f is the center of the ball farthest from the first base line in the three balls;
and the position sensor is arranged on the inner connecting plate.
Preferably, the external connection plate is provided with a first bead groove, a second bead groove and a third bead groove, and the first bead groove and the second bead groove are arranged at intervals along the optical axis; the inner connecting plate is provided with a first sliding groove and a second sliding groove, the first sliding groove is correspondingly arranged with the first bead groove and the second bead groove, and the second sliding groove is correspondingly arranged with the third bead groove; the balls comprise a first ball, a second ball and a third ball; the first ball is arranged between the first ball groove and the first sliding groove; the second ball is arranged between the second ball groove and the first chute; the third ball is arranged between the third ball groove and the second sliding groove.
Preferably, the centers of the first ball, the second ball and the third ball are connected to form a triangle, and the first base line is connected to the centers of the first ball and the second ball respectively.
Preferably, the horizontal cross sections of the first bead groove, the second bead groove, the third bead groove and the first chute are in V-shaped structures; the horizontal cross section of the second chute is of a plane structure.
Preferably, the external connection plate is provided with a first ball groove and a second ball groove, the first ball groove extends along the optical axis direction, the balls comprise a first ball, a second ball, a third ball and a fourth ball, the first ball, the second ball and the third ball are correspondingly arranged with the first ball groove, and the fourth ball is correspondingly arranged with the second ball groove.
Preferably, the second ball groove is provided with a clearance groove, and the clearance groove is arranged corresponding to the second ball.
Preferably, the shell comprises a top shell and a bottom cover, the top shell is spliced with the bottom cover, and the bottom cover is provided with a dust-proof ring.
Preferably, a magnetic conduction structure is arranged in the lens holder, and the magnetic conduction structure is arranged corresponding to the driving magnet.
Preferably, the housing is made of a magnetically permeable material.
The invention also provides an image pickup device comprising the automatic focusing structure.
The embodiment of the invention has the following technical effects:
the lens seat can move relative to the shell, so that the lens is driven to move, focusing is achieved, the lens seat and the coil seat are connected through the balls, the magnetic conduction assembly is arranged on the coil seat, the size of the automatic focusing structure can be effectively reduced, the magnetic attraction point of the magnetic conduction assembly penetrates through the triangular surface, and the distance from the magnetic attraction point to the first base line is less than or equal to f multiplied by 45%, so that the size of forward force borne by the three balls is relatively uniform, and severe inclination or deviation caused by transitional abrasion of a certain ball is avoided. In addition, the automatic focusing structure supports the design of the ball, and current is not wasted to overcome the spring force when the lens is fixed, so that the effect of saving electricity can be achieved.
Drawings
The invention is explained in more detail below with the aid of the figures. The features shown in the drawings and/or described below are features of the invention as a whole and improve the invention accordingly, independently of the specific combination of features.
It should be noted that in different drawings, the same reference numerals indicate the same or substantially the same components.
FIG. 1 is a schematic view of an auto-focusing structure according to a preferred embodiment of the present invention;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a front view of a lens mount according to a preferred embodiment of the present invention;
FIG. 4 is a top view of an autofocus structure according to a preferred embodiment of the present invention;
FIG. 5 is a section A-A of FIG. 4;
FIG. 6 is a section C-C of FIG. 4;
FIG. 7 is a horizontal cross-sectional view of a first bead groove in accordance with a preferred embodiment of the present invention;
fig. 8 is a schematic structural view of a magnetic conductive assembly according to a preferred embodiment of the present invention;
FIG. 9 is another schematic view of an auto-focus structure according to a preferred embodiment of the present invention;
FIG. 10 is an exploded view of FIG. 9;
fig. 11 is another front view of a lens holder according to a preferred embodiment of the present invention;
fig. 12 is a vertical sectional view of an auto-focusing structure of a preferred embodiment of the present invention.
Reference numerals illustrate:
1. a lens base; 1b, a first bead groove; 1c, a second bead groove; 1d, a third bead groove; 1e, an empty-avoiding groove;
2. a coil base; 2b, a first chute; 2c, a second chute;
3. a sliding assembly; 3a, a first ball; 3b, a second ball; 3c, a third ball; 3d, a fourth ball;
4. a magnetic conduction assembly; 4a, magnetic attraction points;
5. a driving coil; 6. a position sensor; 7. driving a magnet;
8. triangular surfaces; 8a, a first baseline;
9. a housing; 9a, a top shell; 9b, a bottom cover;
10. a dust-proof ring.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
The definitions of front, rear, inner, outer, top and bottom are merely for convenience in describing the positional relationship or connection relationship between the respective members of the autofocus structure of the embodiments of the present application, and do not limit the embodiments of the present application.
It should be further noted that, for the same components in the embodiments of the present application, only one of the components or the components may be denoted by the reference numeral in the drawings, and it should be understood that the reference numerals are equally applicable to other same components or components.
Also, the term "comprising" does not exclude other elements or steps, and "a" or "an" does not exclude a plurality.
Furthermore, it should also be noted that, for any single technical feature described or implied in the embodiments herein, or any single technical feature shown or implied in the figures, a combination can still be continued between these technical features (or equivalents thereof) to obtain other embodiments of the present application not directly mentioned herein.
In addition, it should also be understood that the terms "first," "second," etc. are used herein to describe various information, but such information should not be limited to these terms, which are used merely to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the present application.
Referring to fig. 1 to 8, a preferred embodiment of the present invention provides an auto-focusing structure, which includes a housing 9, a lens holder 1, a coil holder 2, a sliding assembly 3, a magnetic conductive assembly 4, a driving coil 5, a position sensor 6 and a driving magnet 7; the lens seat 1 is arranged in the shell 9, and the lens seat 1 is provided with an external connecting plate; the coil seat 2 is arranged in the shell 9, and the coil seat 2 is provided with an inner connecting plate corresponding to the outer connecting plate; the sliding component 3 is arranged between the inner connecting plate and the outer connecting plate; the sliding component 3 comprises three balls which are tightly attached to the outer connecting plate and the inner connecting plate, the three balls form a triangular surface 8, and the triangular surface 8 is provided with a first base line 8a; the first base line 8a connects two balls closest to each other of the three balls; the magnetic conduction assembly 4 is arranged on the inner connecting plate; a magnetic attraction force is generated between the magnetic conduction assembly 4 and the driving magnet 7; the intersection point of the magnetic attraction and the triangular surface is provided with a magnetic attraction point 4a, and the magnetic attraction point 4a is positioned on the triangular surface 8; the magnetic attraction point 4a satisfies: e is less than or equal to f multiplied by 45 percent; where e is the minimum distance from the magnetic attraction point 4a to the first base line 8a, and f is the minimum distance from the first base line 8a to the ball center of the three balls that is farthest from the first base line; the driving coil 5 is arranged on the inner connecting plate; the position sensor 6 is arranged on the inner connecting plate; the driving magnet 7 is mounted on the external board.
The use principle of the automatic focusing structure can change the electromagnetic force and the direction of the driving coil 5 by changing the current of the driving coil 5, so as to drive the lens seat 1 to move along an axis of the optical axis of the lens, and change the distance between the image sensor below the focusing structure and the lens, thereby achieving the automatic focusing effect.
By reading the output signal of the position sensor 6, an axial displacement of the position sensor 6 and the lens holder 1 can be calculated; according to the displacement and the change of the current of the driving coil 5, closed-loop control can be realized, faster focusing speed can be achieved, and resonance problems affecting image definition can be avoided.
In some preferred embodiments of the invention, the drive magnet 7 is bipolar magnetized on one side, the face of the magnet facing the drive coil 5 on the upper side is north pole, and the face of the drive magnet 7 facing the drive coil 5 on the lower side is south pole. Therefore, the electromagnetic force direction of the driving coil 5 is substantially parallel to the optical axis.
In some preferred embodiments of the present invention, the external connection plate is provided with a first bead groove 1b, a second bead groove 1c and a third bead groove 1d, the first bead groove 1b and the second bead groove 1c being spaced apart along the optical axis; the inner connecting plate is provided with a first chute 2b and a second chute 2c, the first chute 2b is correspondingly arranged with a first bead groove 1b and a second bead groove 1c, and the second chute 2c is correspondingly arranged with a third bead groove 1 d; the balls include a first ball 3a, a second ball 3b, and a third ball 3c; the first ball 3a is installed between the first ball groove 1b and the first chute 2 b; the second ball 3b is installed between the second ball groove 1c and the first chute 2 b; the third ball 3c is installed between the third ball groove 1d and the second slide groove 2 c.
In some preferred embodiments of the present invention, the centers of the first ball 3a, the second ball 3b and the third ball 3c are connected to form a triangular surface 8, and the first base line 8a is connected to the centers of the first ball 3a and the second ball 3b, respectively; the first ball 3a and the second ball 3b are two closest balls to each other out of three balls; the third ball 3c is the ball furthest from the first baseline; the magnetic attraction point 4a satisfies: e is less than or equal to f multiplied by 45 percent; where e is the minimum distance from the magnetic attraction point 4a to the first base line 8a, and f is the minimum distance from the first base line 8a to the center of the third ball 3 c.
In some preferred embodiments of the present invention, the first bead groove 1b, the second bead groove 1c, the third bead groove 1d and the first chute 2b have a V-shaped horizontal cross section; the horizontal cross section of the second chute 2c is a planar structure. Thus, the first ball groove 1b, the second ball groove 1c, the third ball groove 1d and the first sliding groove 2b are in a V-shaped design, and each V-shaped groove is tightly connected with two sides of one ball; the second runner 2c is of planar design and is tightly connected with the third ball 3c by only one surface. The first ball 3a and the second ball 3b are tightly connected with the four V-shaped grooves, so that the lens base 1 can be effectively limited to move in Rx, ry, x and y directions relative to the shell 9; because the third ball 3c is tightly connected with the plane second chute 2c and the V-shaped third ball groove 1d, the lens base 1 can only be effectively limited to move in the y direction relative to the shell 9; therefore, the lens mount 1 can be effectively restricted from moving in the directions Rx, ry, rz, x and y, and only the degree of freedom in the z direction is provided. The z direction is approximately parallel to the optical axis of the lens.
Referring to fig. 9 to 12, in some preferred embodiments of the present invention, the external plate is provided with a first ball groove 1b and a second ball groove 1c, the first ball groove 1b extends in the optical axis direction, the balls include a first ball 3a, a second ball 3b, a third ball 3c and a fourth ball 3d, the first ball 3a, the second ball 3b and the third ball 3c are disposed corresponding to the first ball groove 1b, and the fourth ball 3d is disposed corresponding to the second ball groove 1 c.
In some preferred embodiments of the present invention, the first ball groove 1b is provided with a clearance groove 1e, and the clearance groove 1e is provided corresponding to the second ball 3 b.
In some preferred embodiments of the present invention, the housing 9 includes a top case 9a and a bottom cover 9b, the top case 9a is spliced with the bottom cover 9b, and the bottom cover 9b is provided with a dust ring 10. The risk that dust inside the motor falls down the image sensor below the lens is reduced.
In some preferred embodiments of the present invention, a magnetic conduction structure is disposed inside the lens base 1, and the magnetic conduction structure is disposed corresponding to the driving magnet 7. The intensity of the magnetic field flowing through the driving coil 5 can be enhanced, and the power consumption can be reduced. In addition, magnetic attraction force is generated between the magnetic conduction structure and the driving magnet 7, so that the magnet is convenient to assemble, and the falling risk of the magnet when falling is reduced.
In some preferred embodiments of the invention, the housing 9 is made of magnetically permeable material. The magnetic interference of the external magnet to the magnet and the position sensor 6 can be reduced, and the influence on the self-focusing closed-loop control can be reduced.
In some preferred embodiments of the invention, the magnetically permeable assembly 4 comprises an electrically conductive material and is provided with two terminals which are electrically connected to the drive coil 5; the coil base 2 and the magnetic conduction component 4 can support the coil to automatically wind on the two terminals, and the coil and the terminals are electrically connected through an automatic soldering tin process, so that the production efficiency and the reliability are improved.
In some preferred embodiments of the invention, the terminal and the optical axis are not parallel and the included angle is more than 5 °. This design can support automatic winding and improve the design flexibility of the magnetic conduction assembly 4 and the coil base 2, and reduce the size of the automatic focusing ball voice coil motor in the invention.
In some preferred embodiments of the invention, a driver chip containing the position sensor 6 may be employed.
The preferred embodiment of the present invention also provides an image capturing apparatus including an autofocus structure as described above.
Finally, it should be noted that: the foregoing examples are merely specific embodiments of the present application, and are not intended to limit the scope of the present application, but the present application is not limited thereto, and those skilled in the art will appreciate that while the foregoing examples are described in detail, the present application is not limited thereto. Any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or make equivalent substitutions for some of the technical features within the technical scope of the disclosure of the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. An autofocus structure comprising:
a housing;
the lens seat is arranged in the shell and is provided with an external connecting plate;
the coil seat is arranged in the shell and is provided with an inner connecting plate corresponding to the outer connecting plate;
the driving magnet is arranged on the outer connecting plate;
the driving coil is arranged on the inner connecting plate;
the sliding component is arranged between the inner connecting plate and the outer connecting plate; the sliding assembly comprises three balls which are tightly attached to the outer connecting plate and the inner connecting plate, the three balls form a triangular surface, the triangular surface is provided with a first base line, and the first base line is connected with two closest balls in the three balls;
the magnetic conduction assembly is arranged on the inner connecting plate; a magnetic attraction force is generated between the magnetic conduction assembly and the driving magnet; the magnetic attraction points are arranged at the intersections of the magnetic attraction points and the triangular faces; the magnetic attraction point satisfies the following conditions: e is less than or equal to f multiplied by 45 percent; wherein e is the minimum distance from the magnetic attraction point to the first base line, and f is the minimum distance from the first base line to the ball center, which is farthest from the first base line, of the three balls;
and the position sensor is arranged on the inner connecting plate.
2. The auto-focusing structure according to claim 1, wherein the external connection plate is provided with a first bead groove, a second bead groove and a third bead groove, the first bead groove and the second bead groove being arranged at intervals along an optical axis; the inner connecting plate is provided with a first sliding groove and a second sliding groove, the first sliding groove is correspondingly arranged with the first bead groove and the second bead groove, and the second sliding groove is correspondingly arranged with the third bead groove; the balls comprise a first ball, a second ball and a third ball; the first ball is arranged between the first ball groove and the first sliding groove; the second ball is arranged between the second ball groove and the first chute; the third ball is arranged between the third ball groove and the second sliding groove.
3. The auto-focusing structure according to claim 2, wherein the centers of the first ball, the second ball and the third ball are connected to form a triangle, and the first base line is connected to the centers of the first ball and the second ball, respectively.
4. The auto-focusing structure according to claim 2, wherein the first, second, third and first slide grooves have V-shaped horizontal cross-sections; the horizontal cross section of the second chute is of a plane structure.
5. The auto-focusing structure according to claim 1, wherein the external connection plate is provided with a first ball groove and a second ball groove, the first ball groove extends in the optical axis direction, the balls include a first ball, a second ball, a third ball, and a fourth ball, the first ball, the second ball, and the third ball are disposed corresponding to the first ball groove, and the fourth ball is disposed corresponding to the second ball groove.
6. The auto-focusing structure according to claim 1, wherein the second bead groove is provided with a void-avoiding groove, the void-avoiding groove being provided in correspondence with the second ball.
7. The auto-focus mechanism of claim 1, wherein the housing comprises a top housing and a bottom cover, the top housing being spliced with the bottom cover, the bottom cover being provided with a dust ring.
8. The auto-focusing structure according to claim 1, wherein a magnetic conductive structure is provided inside the lens holder, and the magnetic conductive structure is disposed corresponding to the driving magnet.
9. The auto-focus mechanism of claim 1, wherein the housing is made of magnetically permeable material.
10. An image pickup apparatus comprising the auto-focusing structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310023034.1A CN116300268A (en) | 2023-01-03 | 2023-01-03 | Automatic focusing structure and camera device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310023034.1A CN116300268A (en) | 2023-01-03 | 2023-01-03 | Automatic focusing structure and camera device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116300268A true CN116300268A (en) | 2023-06-23 |
Family
ID=86776945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310023034.1A Pending CN116300268A (en) | 2023-01-03 | 2023-01-03 | Automatic focusing structure and camera device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116300268A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117849978A (en) * | 2024-03-06 | 2024-04-09 | 厦门市众惠微电子有限公司 | Periscope type long-stroke focusing motor |
-
2023
- 2023-01-03 CN CN202310023034.1A patent/CN116300268A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117849978A (en) * | 2024-03-06 | 2024-04-09 | 厦门市众惠微电子有限公司 | Periscope type long-stroke focusing motor |
| CN117849978B (en) * | 2024-03-06 | 2024-05-07 | 厦门市众惠微电子有限公司 | Periscope type long-stroke focusing motor |
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