CN209962064U - Automatic focusing device and automatic focusing lens comprising same - Google Patents
Automatic focusing device and automatic focusing lens comprising same Download PDFInfo
- Publication number
- CN209962064U CN209962064U CN201920966175.6U CN201920966175U CN209962064U CN 209962064 U CN209962064 U CN 209962064U CN 201920966175 U CN201920966175 U CN 201920966175U CN 209962064 U CN209962064 U CN 209962064U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- straight
- wall
- positioning column
- adjusting
- 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.)
- Active
Links
Images
Landscapes
- Lens Barrels (AREA)
Abstract
The utility model discloses an automatic focusing device, which comprises a straight-in cylinder, a connecting cylinder, an adjusting cylinder, a base, a driving motor and a focusing assembly, wherein the outer wall of the connecting cylinder is provided with a positioning column; through reducing the size of the locating column on the connecting cylinder, the straight advance section of thick bamboo is gone up and need not to set up the groove of dodging that link up completely to make the intensity of the straight advance section of thick bamboo promote, in addition, because the locating column extension subassembly can be through machine turning, its size precision is higher, thereby is favorable to promoting the precision of focusing. The utility model also discloses an auto focus camera lens that contains above-mentioned auto focus device because this auto focus camera lens contains above-mentioned auto focus device, the higher precision that makes the camera lens of above-mentioned auto focus device reference column precision has obtained the promotion, and foretell straight advance a section of thick bamboo intensity is higher for the life of camera lens has obtained the promotion.
Description
Technical Field
The utility model relates to a focusing device specifically is an automatic focusing device and contain this automatic focusing device's auto focus camera lens.
Background
With the progress of the era and the development of society, the industrial field of us has entered the era of automation and informatization. The lens is also widely applied in numerous fields such as vehicle-mounted, intelligent transportation, aerial photography, security monitoring and the like along with the development of science and technology. The lens has an automatic focusing function for solving the problem that the lens can adapt to different object distances.
The existing automatic focusing device is long in the length of the positioning column on the outer wall of the connecting cylinder, a completely through avoiding opening needs to be formed in the side wall of the straight-going cylinder, the strength of the straight-going cylinder is reduced, the positioning column of the existing focusing device is generally formed by injection molding with the connecting cylinder in an integrated mode, the size precision of the positioning column is low, and the focusing precision is affected.
Disclosure of Invention
The present invention is directed to an automatic focusing device and an automatic focusing lens including the same, so as to solve the problems of the prior art.
In order to achieve the above object, the utility model provides a following technical scheme:
an automatic focusing device comprises a straight-in cylinder, a connecting cylinder, an adjusting cylinder, a base, a driving motor and a focusing assembly, wherein a positioning column is arranged on the outer wall of the connecting cylinder, an avoiding groove for avoiding the positioning column is formed in the inner wall of the straight-in cylinder, the connecting cylinder is sleeved into the straight-in cylinder in a sliding mode through the matching of the avoiding groove and the positioning column, a limiting strip-shaped hole corresponding to the avoiding groove is formed in the outer wall of the straight-in cylinder and communicated with the avoiding groove, the automatic focusing device further comprises a positioning column extension assembly, one end of the positioning column extension assembly is connected with the positioning column through the limiting strip-shaped hole, and the other end of the positioning column extension assembly protrudes out of the outer wall of the straight-in; the connecting portion of the subassembly of focusing is provided with the external screw thread, and the connecting cylinder inner wall is seted up and is focused subassembly external screw thread matched with internal thread, focuses the subassembly and installs on the connecting cylinder through screw-thread fit, base fixed mounting is in the bottom of directly advancing a section of thick bamboo, adjust a section of thick bamboo inner wall and set up the adjustment tank with reference column extension subassembly matched with, the adjustment tank extends in the inner wall slope of adjusting a section of thick bamboo, is provided with the retaining ring on the directly advancing section of thick bamboo outer wall, adjusts a section of thick bamboo rotation cover and establishes outside directly advancing a section of thick bamboo, and adjusts a section of thick bamboo and be located between base and the directly advancing section of thick bamboo retaining ring, reference column extension subassembly stretches into the adjustment tank, still be provided with the motor fixed lock on the lateral wall of directly advancing a section of thick bamboo.
As a further aspect of the present invention: the positioning column extension assembly is a sleeve.
As a further aspect of the present invention: the positioning columns are three in number and are evenly distributed on the outer wall of the connecting cylinder.
As a further aspect of the present invention: the positioning column extension assembly is fixed with the positioning column through screws.
As a further aspect of the present invention: the base and the straight-moving cylinder are fixed through screws.
As a further aspect of the present invention: the outer wall of the adjusting cylinder is provided with a gear ring, the output end of the driving motor is provided with a gear matched with the gear ring, and the gear is meshed with the gear ring.
As a further aspect of the present invention: and a PI baffle is arranged at the upper end of the outer wall of the adjusting cylinder.
An automatic focusing lens comprises the automatic focusing device.
As a further aspect of the present invention: the focusing assembly selected was an M12 screw interface lens.
Compared with the prior art, the beneficial effects of the utility model are that: through reducing the size of reference column, need not to set up the groove of dodging that link up completely on making the straight section of thick bamboo that advances to make the intensity of the straight section of thick bamboo that advances promote, in addition, because reference column extension subassembly can be through machine turning processing, its size precision is higher, thereby is favorable to promoting the precision of focusing.
Drawings
Fig. 1 is a cross-sectional view of an automatic focusing apparatus according to the present invention.
Fig. 2 is an exploded view of the auto-focusing device of the present invention.
Fig. 3 is a schematic structural view of the linear cylinder.
Fig. 4 is a schematic structural view of the connector barrel.
Fig. 5 is a schematic structural diagram of the adjusting cylinder.
Fig. 6 is a schematic structural view of the base.
In the figure: the device comprises a 1-straight-in cylinder, a 101-avoidance groove, a 102-limit strip-shaped hole, a 103-motor fixing locking hole, a 2-connecting cylinder, a 201-positioning column, a 3-adjusting cylinder, a 301-adjusting groove, a 302-PI baffle, a 4-positioning column extension assembly, a 5-screw, a 6-base, a 7-driving motor and an 8-focusing assembly.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Example 1
Referring to fig. 1-6, a focusing device comprises a connecting cylinder 2 and a straight-in cylinder 1, wherein a positioning column 201 is disposed on an outer wall of the connecting cylinder 2, an avoiding groove 101 for avoiding the positioning column 201 is disposed on an inner wall of the straight-in cylinder 1, the connecting cylinder 2 is slidably sleeved into the straight-in cylinder 1 through cooperation between the avoiding groove 101 and the positioning column 201, a position-limiting strip-shaped hole 102 corresponding to the position of the avoiding groove 101 is disposed on the outer wall of the straight-in cylinder 1, the position-limiting strip-shaped hole 102 is communicated with the avoiding groove 101, the automatic focusing device further comprises a positioning column extension assembly, one end of the positioning column extension assembly 4 passes through the position-limiting strip-shaped hole 102 to be connected with the positioning column 201, the other end of the positioning column extension assembly protrudes out of the outer wall of the straight-in cylinder 1, when focusing adjustment is performed, the positioning column extension assembly 4 moves along the position-limiting strip-shaped hole 102, so as, the focusing adjustment is realized, the existing focusing device is not provided with a positioning column extension component 4, the positioning column on the outer wall of the connecting cylinder of the existing focusing device is required to be provided with a completely through avoiding notch in order to be capable of protruding out of the outer wall of the straight-in cylinder, so that the length of the positioning column is longer, the straight-in cylinder is required to avoid the positioning column in the assembling process with the connecting cylinder, and the side wall of the straight-in cylinder is required to be provided with the completely through avoiding notch, so that the setting results in the reduction of the strength of the straight-in cylinder, the straight-in cylinder is easy to damage in the using process, the positioning column of the existing focusing device is generally formed by integral injection molding with the connecting cylinder, the dimensional precision of the positioning column is lower, the focusing precision is influenced, the focusing device disclosed by the positioning column extension component 4, so that the size of the positioning column 201 can be reduced, the straight-in cylinder 1 is not, the size precision is higher, so that the focusing precision is improved;
the automatic focusing device further comprises a focusing assembly 8, an adjusting cylinder 3, a base 6 and a driving motor 7, wherein a connecting part of the focusing assembly 8 is provided with an external thread, the inner wall of the connecting cylinder 2 is provided with an internal thread matched with the external thread of the focusing assembly 8, the focusing assembly 8 is installed on the connecting cylinder 2 in a threaded fit manner, and when the connecting cylinder 2 moves along the straight-in cylinder 1, the focusing assembly 8 is driven to move, so that focusing adjustment is realized; the base 6 is fixedly installed at the bottom of the straight-advancing cylinder 1, the connection mode between the base 6 and the straight-advancing cylinder 1 is not limited, and in the embodiment, preferably, the base 6 and the straight-advancing cylinder 1 are fixed through the screw 5, so that the assembly and disassembly are convenient; the inner wall of the adjusting cylinder 3 is provided with an adjusting groove 301 matched with the positioning column extension component 4, the adjusting groove 301 extends obliquely on the inner wall of the adjusting cylinder 3, the outer wall of the straight-in cylinder 1 is provided with a retaining ring, the adjusting cylinder 3 is rotatably sleeved outside the straight-in cylinder 1, the adjusting cylinder 3 is positioned between the base 6 and the retaining ring of the straight-in cylinder 1, the positioning column extension component 4 extends into the adjusting groove 301, the adjusting cylinder 3 can only rotate around the straight-in cylinder 1 and can not move along the axial direction of the straight-in cylinder 1, due to the matching effect of the positioning column extension component 4 and the adjusting groove 301, the adjusting groove 301 extends obliquely on the inner wall of the adjusting cylinder 3, when the adjusting cylinder 3 is rotated, the positioning column extension component 4 is pushed to move along the limiting strip-shaped hole 102, the positioning column 201 is driven to move along the avoiding groove 101, and the connecting cylinder 2 is driven to move along the straight-in the straight, focusing adjustment is realized; the driving motor 7 drives the adjusting cylinder 3 to rotate;
the driving modes of the driving motor 7 and the adjusting cylinder 3 are not limited, in the embodiment, preferably, the outer wall of the adjusting cylinder 3 is provided with a gear ring, the output end of the driving motor 7 is provided with a gear matched with the gear ring, the gear is meshed with the gear ring, and when the driving motor 7 runs, the adjusting cylinder 3 is driven to rotate through the meshing action of the gear and the gear ring; a motor fixing locking hole 103 is further formed in the side wall of the straight-moving cylinder 1, a mounting seat is arranged on the base 6, and the motor fixing locking hole 103 is matched with the mounting seat to mount the driving motor 7;
the specific structure of the positioning column extension assembly 4 is not limited, and may be a sleeve, an insertion rod, or the like, in this embodiment, preferably, the positioning column extension assembly 4 is a sleeve, the sleeve is sleeved outside the positioning column 201, and the connection mode between the sleeve and the positioning column 201 is not limited, in this embodiment, preferably, the positioning column extension assembly 4 and the positioning column 201 are fixed by a screw 5;
the number of the positioning pillars 201 is not limited, and in this embodiment, preferably, three positioning pillars 201 are provided and are uniformly distributed on the outer wall of the connecting cylinder 2.
The PI baffles 302 are arranged on the adjusting groove 3, so that the counting of the driving motor 7 is realized, the forward/reverse rotation steps of the driving motor 7 can be set, and the effective focusing distance can be ensured without mechanical wall collision.
The utility model discloses a theory of operation is: the driving motor 7 drives the adjusting cylinder 3 to rotate, the adjusting cylinder 3 rotates to push and drive the positioning column extending assembly 4 to move along the limiting strip-shaped hole 102, the positioning column 201 is driven to move along the avoiding groove 101, and then the connecting cylinder 2 is driven to move along the straight-forward cylinder 1, so that the focusing assembly 8 is driven to move, and focusing adjustment is achieved.
The utility model discloses a reduce the size of reference column, make and directly advance and need not to set up the groove of dodging that link up completely on the section of thick bamboo to make the intensity of directly advancing a section of thick bamboo promote, in addition, because reference column extension subassembly can be through machine turning, its size precision is higher, thereby is favorable to promoting the precision of focusing.
Example 2
An auto-focus lens includes the auto-focus device described in embodiment 1, and specific lenses such as a C lens, a CS lens, and the like are not limited, and in this embodiment, preferably, an M12 screw interface lens. Because the automatic focusing lens comprises the automatic focusing device, the precision of the lens is improved due to the high precision of the positioning column of the automatic focusing device, and the service life of the lens is prolonged due to the high strength of the straight-moving cylinder.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (9)
1. An automatic focusing device comprises a straight-in cylinder (1), a connecting cylinder (2), an adjusting cylinder (3), a base (6), a driving motor (7) and a focusing assembly (8), wherein the outer wall of the connecting cylinder (2) is provided with a positioning column (201), and the automatic focusing device is characterized in that the inner wall of the straight-in cylinder (1) is provided with an avoiding groove (101) avoiding the positioning column (201), the connecting cylinder (2) is slidably sleeved into the straight-in cylinder (1) through the matching of the avoiding groove (101) and the positioning column (201), the outer wall of the straight-in cylinder (1) is provided with a limiting strip-shaped hole (102) corresponding to the avoiding groove (101), the limiting strip-shaped hole (102) is communicated with the avoiding groove (101), the automatic focusing device further comprises a positioning column extension assembly (4), one end of the positioning column extension assembly (4) penetrates through the limiting strip-shaped hole (102) to be connected with the positioning column (201), the other end of the positioning column extension component (4) protrudes out of the outer wall of the straight-moving cylinder (1); the focusing device is characterized in that a connecting part of the focusing assembly (8) is provided with an external thread, the inner wall of the connecting cylinder (2) is provided with an internal thread matched with the external thread of the focusing assembly (8), the focusing assembly (8) is installed on the connecting cylinder (2) in a thread matching manner, the base (6) is fixedly installed at the bottom of the straight-in cylinder (1), the inner wall of the adjusting cylinder (3) is provided with an adjusting groove (301) matched with the positioning column extension assembly (4), the adjusting groove (301) obliquely extends on the inner wall of the adjusting cylinder (3), the outer wall of the straight-in cylinder (1) is provided with a retaining ring, the adjusting cylinder (3) is rotatably sleeved outside the straight-in cylinder (1), the adjusting cylinder (3) is positioned between the base (6) and the retaining ring of the straight-in cylinder (1), the positioning column extension assembly (4) extends into the adjusting groove (301), the side wall of the straight-in cylinder (1, the base (6) is provided with a mounting seat, the motor fixing locking hole (103) is matched with the mounting seat to install the driving motor (7), and the driving motor (7) is connected with the adjusting cylinder (3) in a driving mode.
2. Autofocus device according to claim 1, characterized in that the positioning post extension element (4) is a sleeve.
3. Autofocus device according to claim 1 or 2, characterized in that the positioning posts (201) are three in number and are evenly distributed over the outer wall of the connecting cylinder (2).
4. The autofocus device according to claim 1 or 2, wherein the positioning post extension assembly (4) is fixed to the positioning post (201) by a screw (5).
5. Autofocus device according to claim 1 or 2, characterized in that the base (6) is fixed to the linear cylinder (1) by means of screws (5).
6. The automatic focusing device according to claim 1 or 2, wherein the outer wall of the adjusting cylinder (3) is provided with a gear ring, the output end of the driving motor (7) is provided with a gear matched with the gear ring, and the gear is meshed with the gear ring.
7. Autofocus device according to claim 1 or 2, characterized in that the upper end of the outer wall of the adjusting cylinder (3) is provided with a PI stop.
8. An autofocus lens comprising the autofocus device of any of claims 1 to 7.
9. Auto-focus lens according to claim 8, characterized in that the selected focus component (8) is an M12 screw interface lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920966175.6U CN209962064U (en) | 2019-06-26 | 2019-06-26 | Automatic focusing device and automatic focusing lens comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920966175.6U CN209962064U (en) | 2019-06-26 | 2019-06-26 | Automatic focusing device and automatic focusing lens comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209962064U true CN209962064U (en) | 2020-01-17 |
Family
ID=69248527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920966175.6U Active CN209962064U (en) | 2019-06-26 | 2019-06-26 | Automatic focusing device and automatic focusing lens comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209962064U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110543063A (en) * | 2019-06-26 | 2019-12-06 | 广州长步道光电科技有限公司 | Automatic focusing device and automatic focusing lens comprising same |
-
2019
- 2019-06-26 CN CN201920966175.6U patent/CN209962064U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110543063A (en) * | 2019-06-26 | 2019-12-06 | 广州长步道光电科技有限公司 | Automatic focusing device and automatic focusing lens comprising same |
| CN110543063B (en) * | 2019-06-26 | 2023-12-01 | 广州长步道光学科技有限公司 | Automatic focusing device and automatic focusing lens comprising same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209962064U (en) | Automatic focusing device and automatic focusing lens comprising same | |
| CN1289933C (en) | Cam mechanism of lens drum | |
| US20180111558A1 (en) | Electric retractable view device for vehicle | |
| CN1967307B (en) | Variable-focus and focusing structure of lens and module of digital camera using the same structure | |
| CN101206298A (en) | Automatic focusing device | |
| US20130155529A1 (en) | Lens barrel and imaging apparatus | |
| CN204613556U (en) | Focusing mechanism of optical system | |
| CN209746245U (en) | Automatic focusing device for infrared lens | |
| CN110543063A (en) | Automatic focusing device and automatic focusing lens comprising same | |
| CN1217226C (en) | Lens barrel structure of flexible lens in camera | |
| CN210109537U (en) | Focusing device and lens comprising same | |
| CN2665729Y (en) | Lens of portable electronic device capable of taking pictures | |
| EP2560038B1 (en) | Holder for optical element and assembly method | |
| CN110543062B (en) | Focusing device and lens comprising same | |
| CN214375771U (en) | Lens with automatic focusing function and projector | |
| CN114114600A (en) | New-type automatic focusing MTV camera lens module | |
| US9195024B2 (en) | Drive device, lens barrel, and imaging apparatus | |
| JP2000275494A (en) | Lens support structure | |
| CN103091941A (en) | Lens with photosensitive assembly withdrawing function | |
| CN209765136U (en) | Infrared automatic focusing device | |
| CN220872748U (en) | Core-adjusting focusing mechanism and imaging device | |
| CN201247340Y (en) | Image auto-focus device | |
| CN219552745U (en) | Direct-casting lens | |
| CN216526470U (en) | New-type automatic focusing MTV camera lens module | |
| CN210465967U (en) | Be applied to camera lens of family's projecting apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220512 Address after: No. 8, Hongda Road, Hongtang village, Tongsheng street, Yuhua District, Changsha City, Hunan Province, 410116 Patentee after: HUNAN CHIOPT OPTICAL TECHNOLOGY Co.,Ltd. Address before: 511442 2nd floor, No.1 Workshop, Jinshan Industrial Park, pengdizhuang, lirendong village, Nancun Town, Panyu District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU CHIOPT OPTOTECH Co.,Ltd. |
|
| TR01 | Transfer of patent right |