CN216434502U - Built-in thread-driven adjustable-focus lens structure - Google Patents
Built-in thread-driven adjustable-focus lens structure Download PDFInfo
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- CN216434502U CN216434502U CN202123245494.4U CN202123245494U CN216434502U CN 216434502 U CN216434502 U CN 216434502U CN 202123245494 U CN202123245494 U CN 202123245494U CN 216434502 U CN216434502 U CN 216434502U
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Abstract
The utility model discloses a built-in thread-driven adjustable-focus lens structure, which comprises a lens cone and a focusing barrel, wherein the focusing barrel is movably sleeved at the tail end of the lens cone, the intersection part of the lens cone and the focusing barrel is provided with a focusing ring which is in threaded connection with the outer wall of the lens cone and can drive the focusing barrel to axially move, the intersection part of the focusing barrel and the lens cone is provided with a hollowed-out opening for rotating the focusing ring, and the focusing barrel is provided with a limiting mechanism for preventing the focusing ring from rotating; the utility model discloses a rotate built-in focusing ring and drive a focusing section of thick bamboo and carry out axial displacement, accomplish the focusing of lens and handle, not only effectively made things convenient for the transmission structure between lens cone and the focusing section of thick bamboo, ensured the focusing precision of camera lens moreover.
Description
Technical Field
The utility model relates to an optical lens technical field especially relates to a but focusing lens structure of built-in screw thread drive.
Background
The focusing lens is a camera lens which can change focal length within a certain range so as to obtain different field angles, images with different sizes and different scene ranges, and the focusing lens can change the shooting range by changing the focal length under the condition of not changing the shooting distance, so that the focusing lens is very favorable for picture composition.
SUMMERY OF THE UTILITY MODEL
In order to overcome not enough among the background art, the utility model discloses a but built-in screw thread drive focusing lens structure, the utility model discloses a rotate built-in focusing ring and drive a focusing section of thick bamboo and carry out axial displacement, accomplish the focusing of lens and handle, not only effectively portably the transmission structure between lens cone and the focusing section of thick bamboo, ensured the focusing precision of camera lens moreover.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a but built-in screw thread drive focusing lens structure, includes lens cone and focusing barrel, and the focusing barrel has been cup jointed in lens cone tail end activity, and the lens cone is equipped with lens cone outer wall threaded connection with the crossing portion of focusing barrel, and can drive focusing barrel axial displacement's focusing ring, and the crossing portion of focusing barrel and lens cone is equipped with the fretwork mouth that is used for rotating the focusing ring, and the focusing barrel is equipped with and is used for preventing focusing ring pivoted stop gear.
Furthermore, the outer wall of the intersection part of the lens barrel and the focusing barrel is provided with a driving thread which is in threaded fit with the focusing ring.
Furthermore, the inner wall of the focusing barrel is provided with an annular clamping groove corresponding to the focusing ring, and the outer wall of the focusing ring is uniformly distributed with at least two driving studs matched with the annular clamping groove.
Furthermore, the outer wall of the focusing barrel is provided with a fastening screw for positioning and locking the focusing barrel.
Furthermore, the limiting mechanism comprises a limiting sliding groove and a limiting stud, the limiting stud is arranged on the outer wall of the tail end of the lens barrel, the limiting sliding groove corresponding to the limiting stud is arranged on the outer wall of the focusing barrel, the limiting sliding groove is of a long strip-shaped structure arranged along the axial direction of the focusing barrel, and the upper end of the limiting stud is in sliding fit with the limiting sliding groove.
Compared with the prior art, the beneficial effects of the utility model are that: through the built-in focusing ring, transmission parts between the focusing ring and the focusing barrel are effectively reduced, the risk of damage of the focusing ring is greatly reduced, and the cost of the lens is saved;
the focusing ring moves to drive the focusing barrel to move axially to complete focusing, so that the change degree of coaxiality during focusing is effectively reduced, and focusing is more accurate and effective;
through the limiting mechanism, the focusing barrel cannot rotate in the axial movement process, so that the abrasion between the focusing barrel and the lens barrel is greatly reduced;
the focusing barrel can be limited and fixed through the fastening screws, accidental displacement of a focus after focusing is avoided, and powerful support is provided for subsequent shooting;
the utility model discloses a rotate built-in focusing ring and drive a focusing section of thick bamboo and carry out axial displacement, accomplish the focusing of lens and handle, not only effectively made things convenient for the transmission structure between lens cone and the focusing section of thick bamboo, ensured the focusing precision of camera lens moreover.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the present invention.
In the figure: 1. a lens barrel; 2. a focusing ring; 3. hollowing out; 4. fastening screws; 5. a limiting chute; 6. a focusing barrel; 7. driving the stud; 8. a card slot; 9. a limiting stud; 10. the screw is driven.
Detailed Description
In the following description, the technical solutions of the present invention will be described with reference to the drawings in the embodiments of the present invention, it should be understood that, if there are the orientations or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc., it only corresponds to the drawings of the present invention, and for convenience of description, it is not intended to indicate or imply that the indicated device or element must have a specific orientation.
Referring to the attached drawings 1-2 of the specification, the utility model provides a technical scheme:
in the first embodiment, a structure of a built-in thread driving adjustable focus lens comprises a lens barrel 1 and a focusing barrel 6, wherein the focusing barrel 6 is movably sleeved at the tail end of the lens barrel 1, a focusing ring 2 which is in threaded connection with the outer wall of the lens barrel 1 and can drive the focusing barrel 6 to axially move is arranged at the intersection part of the lens barrel 1 and the focusing barrel 6, a hollowed-out opening 3 for rotating the focusing ring 2 is arranged at the intersection part of the focusing barrel 6 and the lens barrel 1, specifically, a driving thread 10 which is in threaded fit with the focusing ring 2 is arranged on the outer wall of the intersection part of the lens barrel 1 and the focusing barrel 6, after the focusing ring 2 is rotated through the hollowed-out opening 2, the focusing ring 2 can axially move along the driving thread 10 on the outer wall of the lens barrel 1, in order to enable the focusing ring 2 to drive the focusing barrel 6 to axially move, an annular clamping groove 8 corresponding to the focusing ring 2 is arranged on the inner wall of the focusing barrel 6, at least two driving studs 7 with the upper ends inserted into the annular clamping groove 8 are uniformly distributed on the outer wall of the focusing ring 2, the driving stud 7 is driven by the movement of the focusing ring 2 to move together, the driving stud 7 pushes the focusing barrel 6 to move together, so that the distance between lens pieces of a lens is changed, focusing processing of the lens is realized, in order to realize positioning of the focused focusing barrel 6, the outer wall of the focusing barrel 6 is provided with a fastening screw 4 for positioning and locking the focusing barrel 6, and the end part of the fastening screw 4 is tightly abutted against the outer wall of the focusing ring 2 by screwing the fastening screw 4, so that the limiting of the focusing barrel 6 is realized;
because the focusing ring 2 needs to be rotated in the focusing process, the focusing barrel 6 is driven to rotate in the process of rotating and displacing the focusing ring 2, the focusing barrel 6 is provided with a limiting mechanism for preventing the focusing ring 2 from rotating, concretely, the limiting mechanism comprises a limiting sliding groove 5 and a limiting stud 9, the outer wall of the tail end of the lens barrel 1 is provided with the limiting stud 9, the outer wall of the focusing barrel 6 is provided with the limiting sliding groove 5 corresponding to the limiting stud 9, the limiting sliding groove 5 is a long strip-shaped structure axially arranged along the focusing barrel 6, the upper end of the limiting stud 9 is in sliding fit with the limiting sliding groove 5, the focusing barrel 6 drives the limiting sliding groove 5 to move in the axial moving process, the limiting stud 9 in sliding fit with the limiting sliding groove 5 limits the focusing barrel 6, and the rotation of the focusing barrel 6 is prevented while the axial moving of the focusing barrel 6 is not influenced.
The details of the present invention not described in detail are prior art, and it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention 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 invention 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, and any reference signs in the claims are not intended to be construed as limiting the scope of the claims.
Claims (5)
1. The utility model provides a but built-in screw thread drive focusing lens structure, includes lens cone (1) and focusing barrel (6), its characterized in that: a focusing barrel (6) is movably sleeved at the tail end of a lens barrel (1), the intersection part of the lens barrel (1) and the focusing barrel (6) is in threaded connection with the outer wall of the lens barrel (1), a focusing ring (2) which can drive the focusing barrel (6) to move axially is arranged, a hollowed-out opening (3) used for rotating the focusing ring (2) is arranged at the intersection part of the focusing barrel (6) and the lens barrel (1), and a limiting mechanism used for preventing the focusing ring (2) from rotating is arranged on the focusing barrel (6).
2. The structure of an internally-threaded driving adjustable-focus lens according to claim 1, wherein: the outer wall of the intersection part of the lens cone (1) and the focusing cylinder (6) is provided with a driving thread (10) which is in threaded fit with the focusing ring (2).
3. A built-in screw-driven variable focus lens structure according to claim 2, wherein: the inner wall of the focusing barrel (6) is provided with an annular clamping groove (8) corresponding to the focusing ring (2), and the outer wall of the focusing ring (2) is uniformly distributed with at least two driving studs (7) matched with the annular clamping groove (8).
4. The structure of an internally-threaded driving adjustable-focus lens according to claim 1, wherein: and a fastening screw (4) for positioning and locking the focusing barrel (6) is arranged on the outer wall of the focusing barrel (6).
5. The structure of an internally-threaded driving adjustable-focus lens according to claim 1, wherein: the limiting mechanism comprises a limiting sliding groove (5) and a limiting stud (9), the limiting stud (9) is arranged on the outer wall of the tail end of the lens barrel (1), the limiting sliding groove (5) corresponding to the limiting stud (9) is arranged on the outer wall of the focusing barrel (6), the limiting sliding groove (5) is a long strip-shaped structure axially arranged along the focusing barrel (6), and the upper end of the limiting stud (9) is in sliding fit with the limiting sliding groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123245494.4U CN216434502U (en) | 2021-12-22 | 2021-12-22 | Built-in thread-driven adjustable-focus lens structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123245494.4U CN216434502U (en) | 2021-12-22 | 2021-12-22 | Built-in thread-driven adjustable-focus lens structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216434502U true CN216434502U (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123245494.4U Active CN216434502U (en) | 2021-12-22 | 2021-12-22 | Built-in thread-driven adjustable-focus lens structure |
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| Country | Link |
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| CN (1) | CN216434502U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114942557A (en) * | 2022-05-13 | 2022-08-26 | 湖南长步道光学科技有限公司 | Diaphragm adjusting device and lens with same |
| CN116184609A (en) * | 2023-03-08 | 2023-05-30 | 广州长步道光学科技有限公司 | External directional high-precision focusing ring of camera lens |
-
2021
- 2021-12-22 CN CN202123245494.4U patent/CN216434502U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114942557A (en) * | 2022-05-13 | 2022-08-26 | 湖南长步道光学科技有限公司 | Diaphragm adjusting device and lens with same |
| CN114942557B (en) * | 2022-05-13 | 2024-01-26 | 湖南长步道光学科技有限公司 | Diaphragm adjusting device and lens with same |
| CN116184609A (en) * | 2023-03-08 | 2023-05-30 | 广州长步道光学科技有限公司 | External directional high-precision focusing ring of camera lens |
| CN116184609B (en) * | 2023-03-08 | 2023-11-21 | 广州长步道光学科技有限公司 | External directional high-precision focusing ring of camera lens |
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