Camera lens focusing structure
By designing a camera lens focusing structure that includes inner tube, middle cylinder, focusing ring, connecting cylinder, and edge -sealing ring, the existing camera lens cannot assemble the complicated lens and structure, and realize the convenient focus adjustment and resource resource of users. Use again.
Patent Information
- Application Number
- CN202421301428.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-06-07
AI Technical Summary
Existing camera lenses cannot be freely assembled by users, and the structure is complex and costly, so they cannot effectively utilize the discarded lenses inside the copier.
A camera lens focusing structure is designed, including the inner tube, middle cylinder, focusing ring, pavailing cylinder and edge ring ring. Through the thread transmission mode, the middle and inner tube movement is used to adjust the position of the lens to achieve focusing.
The simple and compact design of the camera lens can easily adjust the focus position, and can convert the abandoned lens inside the copy of the copy into the lens for digital cameras to make full use of resources and save costs.
Smart Images
Figure CN222420637U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cameras, and more specifically to a camera lens focusing structure. Background Art
[0002] The existing copiers are all provided with lenses inside. When the copier is damaged and cannot be used, the lenses will also be discarded. How to recycle the lenses inside the copier and save resources is the problem that the utility model needs to solve urgently.
[0003] In addition, the existing digital camera lens generally requires the use of a lens, but the existing camera lens cannot be freely assembled by the user, and the structure of the existing camera lens is relatively complex and the cost is high. Utility Model Content
[0004] The utility model aims to overcome the above-mentioned defects in the prior art and provide a camera lens focusing structure which can be matched with a discarded lens inside a copier and converted into a lens for a digital camera.
[0005] To achieve the above-mentioned purpose, the utility model provides a camera lens focusing structure, including an inner tube, a middle tube, a focus ring, a butt tube and an edge sealing ring, wherein a lens mounting cavity for placing discarded lenses of a copier is penetrated from front to back in the middle of the inner tube, the middle tube is mounted on the outside of the inner tube, and a middle tube external thread is provided on the front end outer wall of the middle tube, the focus ring includes a focus ring body and a focus ring rotating part with a single-side cross-section shape of an L-shape, the focus ring rotating part is connected to the front end outer part of the focus ring body, a focus ring insertion groove is formed between the focus ring rotating part and the focus ring body, and the focus ring The inner wall of the focus ring body is provided with a focus ring internal thread, the focus ring body is located outside the middle tube, the focus ring internal thread is threadedly connected with the middle tube external thread, the focus ring body is movably installed inside the docking tube, the front end of the docking tube is inserted into the focus ring insertion groove, the focus ring rotating part is located outside the front end of the docking tube, the edge sealing ring is installed at the front end of the focus ring, the edge sealing ring can limit the forward movement of the inner tube, and when the focus ring rotates relative to the docking tube, the focus ring can drive the middle tube and the inner tube to move axially forward and backward.
[0006] Preferably, the outer wall of the focus ring rotating portion is provided with a plurality of arc-shaped grooves distributed in a centrally symmetrical manner, and each arc-shaped groove extends along its axial direction.
[0007] Preferably, the outer wall of the inner cylinder is provided with at least one positioning convex strip extending along its axial direction, and the inner wall of the middle cylinder is provided with at least one positioning groove extending along its axial direction, and the positioning convex strip is inserted into the corresponding positioning groove.
[0008] Preferably, the edge sealing ring is fixedly mounted on the front end of the focus ring by means of screws.
[0009] Preferably, the single-side cross-sectional shape of the edge sealing ring is set to be L-shaped, and the front end inner wall of the edge sealing ring is provided with an edge sealing ring internal thread.
[0010] Preferably, an inner tube convex ring portion is provided on the outside of the front end of the inner tube, and the inner tube convex ring portion is located in front of the front end portion of the middle tube.
[0011] Preferably, a rear end of the docking sleeve is provided with an external thread.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] The utility model has a simple and compact structure and a reasonable design. The user can rotate the focus ring and drive the middle cylinder to move forward and backward through a threaded transmission mode. At this time, the inner cylinder will also move forward and backward with the middle cylinder, so that the position of the lens installed inside the inner cylinder can be adjusted, thereby adjusting the distance between the lens and the sensor of the camera, and the purpose of focusing is achieved. The structure is convenient for users to adjust the focus position, and users do not need to perform complicated operations. In addition, the discarded lens inside the copier can be converted into a lens for a digital camera, which makes full use of the discarded copier lens, realizes the reuse of resources, and saves resources. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0015] Figure 1 It is a structural schematic diagram of a camera lens focusing structure provided by an embodiment of the utility model;
[0016] Figure 2 It is an exploded view of the camera lens focusing structure provided by an embodiment of the utility model;
[0017] Figure 3 It is a cross-sectional view of the camera lens focusing structure provided by the embodiment of the utility model after a lens is installed. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0019] Please refer to Figures 1 to 3 An embodiment of the utility model provides a camera lens focusing structure, including an inner tube 1, a middle tube 2, a focusing ring 3, a docking tube 4 and an edge sealing ring 5. The various components of this embodiment are described in detail below in conjunction with the accompanying drawings.
[0020] like Figure 2 and Figure 3 As shown, the inner cylinder 1 can be set to a cylindrical shape, and a lens installation cavity for placing discarded lenses of the copier is penetrated from front to back in the middle of the inner cylinder 1, and an inner cylinder convex ring portion 12 is provided on the outside of the front end of the inner cylinder 1.
[0021] like Figure 2 and Figure 3 As shown, the middle cylinder 2 can be set to a cylindrical shape, and the middle cylinder 2 is installed outside the inner cylinder 1. The inner cylinder convex ring portion 12 of the inner cylinder 1 is located in front of the front end of the middle cylinder 2, and the front end outer wall of the middle cylinder 2 is provided with a partial middle cylinder external thread 21.
[0022] In order to facilitate the assembly of the middle cylinder 2 and the inner cylinder 1, the outer wall of the inner cylinder 1 can also be provided with at least one positioning convex strip 11 extending along its axial direction, and correspondingly, the inner wall of the middle cylinder 2 can be provided with at least one positioning groove 22 extending along its axial direction, and the positioning convex strip 11 can be inserted into the corresponding positioning groove 22.
[0023] like Figures 1 to 3 As shown, the focus ring 3 may include a focus ring body 31 and a focus ring rotating portion 32 with a single-sided cross-sectional shape of an L-shape, the focus ring rotating portion 32 is connected to the front end outside of the focus ring body 31, a focus ring insertion groove is formed between the focus ring rotating portion 32 and the focus ring body 31, the inner wall of the focus ring body 31 is provided with a focus ring internal thread 33, the focus ring body 31 is located on the outside of the middle tube 2, the focus ring internal thread 33 can be threadedly connected with the middle tube external thread 21, and the focus ring body 31 is movably installed inside the docking tube 4.
[0024] In order to facilitate the user to rotate the focus ring 3, the outer wall of the focus ring rotating part 32 can also be provided with a plurality of arc grooves 321 distributed symmetrically with respect to the center, and each arc groove 321 extends along its axial direction. Of course, in other embodiments, the outer surface of the focus ring rotating part 32 can also be provided with anti-slip patterns of other shapes.
[0025] like Figure 2 and Figure 3 As shown, the docking tube 4 can be set to a cylindrical shape, the wall thickness of the front end portion of the docking tube 4 is smaller than the wall thickness of the rear end portion, the front end portion of the docking tube 4 is inserted into the focus ring insertion groove, and the focus ring rotating part 32 is located outside the front end portion of the docking tube 4.
[0026] like Figure 2 As shown, the rear end of the docking tube 4 may also be provided with a docking tube external thread 41. The docking tube 4 can be quickly and conveniently connected to the camera through the docking tube external thread 41.
[0027] like Figures 1 to 3 As shown, the edge sealing ring 5 can be fixedly installed on the front end of the focus ring 3 by screws. The edge sealing ring 5 can limit the forward movement of the inner tube 1, and a preset movable distance can be set between the edge sealing ring 5 and the front end of the inner tube 1.
[0028] Preferably, the single-side cross-sectional shape of the edge sealing ring 5 can be set to be L-shaped, and the front end inner wall of the edge sealing ring 5 can also be provided with an edge sealing ring internal thread 51.
[0029] The working principle of the utility model is as follows:
[0030] Before use, Figure 3 As shown, the user can install the discarded lenses of the copier in the lens installation cavity of the inner cylinder 1. Preferably, two groups of lenses (such as lens group 100 and lens group 101) can be installed.
[0031] When the user can rotate the focus ring 3, the focus ring 3 can rotate relative to the docking tube 4, and the focus ring internal thread 33 of the focus ring 3 can be meshed with the middle tube external thread 21 of the middle tube 2 to drive the middle tube to move forward and backward through the thread transmission. At this time, the inner tube 1 will also move forward and backward with the middle tube 2, so that the position of the lens installed in the inner tube 1 can be adjusted, thereby adjusting the distance between the lens and the sensor of the camera, thereby achieving the purpose of focusing.
[0032] To sum up, the utility model has a simple and compact structure, a reasonable design, and is easy to use. It can be converted into a lens for a digital camera by matching the discarded lens inside a copier, thereby making full use of the discarded copier lens, realizing the reuse of resources, and saving resources.
[0033] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited by the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principle of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.
Claims
1. A camera lens focusing structure, characterized in that: The invention comprises an inner tube, a middle tube, a focus ring, a docking tube and an edge sealing ring. A lens installation cavity for placing discarded lenses of a copier is penetrated through the middle of the inner tube from front to back. The middle tube is installed on the outside of the inner tube. The front end outer wall of the middle tube is provided with a middle tube outer thread. The focus ring comprises a focus ring body and a focus ring rotating part with a single-side cross-section in an L shape. The focus ring rotating part is connected to the front end outer part of the focus ring body. A focus ring insertion groove is formed between the focus ring rotating part and the focus ring body. The inner wall of the focus ring body is provided with a focus ring inner thread. The focus ring body is located outside the middle tube, the inner thread of the focus ring is threadedly connected with the outer thread of the middle tube, the focus ring body is movably installed inside the docking tube, the front end of the docking tube is inserted into the focus ring insertion groove, the focus ring rotating part is located outside the front end of the docking tube, the edge sealing ring is installed at the front end of the focus ring, the edge sealing ring can limit the forward movement of the inner tube, and when the focus ring rotates relative to the docking tube, the focus ring can drive the middle tube and the inner tube to move axially forward and backward.
2. The camera lens focusing structure according to claim 1, characterized in that: The outer wall of the focus ring rotating part is provided with a plurality of arc grooves which are centrally symmetrically distributed, and each arc groove extends along its axial direction.
3. The camera lens focusing structure according to claim 1, characterized in that: The outer wall of the inner cylinder is provided with at least one positioning convex strip extending along the axial direction thereof, and the inner wall of the middle cylinder is provided with at least one positioning groove extending along the axial direction thereof, and the positioning convex strip is inserted into the corresponding positioning groove.
4. The camera lens focusing structure according to claim 1, characterized in that: The edge sealing ring is fixedly mounted on the front end of the focusing ring by means of screws.
5. The camera lens focusing structure according to claim 1, characterized in that: The single-side cross-section of the edge sealing ring is configured to be L-shaped, and the front end inner wall of the edge sealing ring is provided with an edge sealing ring internal thread.
6. The camera lens focusing structure according to claim 1, characterized in that: An inner tube convex ring portion is provided outside the front end of the inner tube, and the inner tube convex ring portion is located in front of the front end portion of the middle tube.
7. The camera lens focusing structure according to claim 1, characterized in that: The rear end of the butt joint sleeve is provided with a butt joint sleeve external thread.