Focusing and locking lens structure

Abstract

The utility model discloses a focusing and locking lens structure, which comprises a fixed lens seat, a focusing mechanism, a lens and an adjusting mechanism, the focusing mechanism comprises a focusing lens cone, a focusing ring, a locking gear, a limiting check ring, a locking pressing ring and a focusing gear. The focusing ring is connected with the focusing lens barrel through a guide nail screw, the adjusting mechanism drives the focusing gear to rotate so as to drive the focusing ring and the lens to axially move to realize focusing, and meanwhile, the adjusting mechanism drives the locking gear to rotate so as to drive the focusing gear to move towards the fixed lens seat to lock the focusing ring. Focusing and locking are achieved through the adjusting mechanism, the problem that manual focusing of a traditional lens is tedious is solved, the lens is convenient to assemble and debug, focusing precision and accuracy are improved, the problem that the locking effect of the traditional lens is poor through screws is solved, the locking effect of the lens is further improved, the locking efficiency is higher, and the lens is convenient to assemble and debug. And the lens can be used in a severe environment.

Description

Technical Field

[0001] This utility model relates to the field of optical lens technology, specifically to a focusing and locking lens structure. Background Technology

[0002] In photography, whether it's a professional photographer pursuing the ultimate image quality or an ordinary enthusiast recording life's moments, a lens needs to be able to focus precisely to obtain clear and sharp images.

[0003] Currently, lens focusing is one of the most commonly used functions of lenses. Lens focusing is achieved by rotating the focusing ring on the lens to move the lens barrel linearly, thus enabling the lens to focus. Most traditional lenses with focusing functions are manually adjusted and then locked with screws.

[0004] However, the process of manual focusing is rather cumbersome. Lenses that are locked with locking screws are prone to loosening when subjected to vibration or impact, thus losing their function of securing the lens, resulting in out-of-focus images and unclear images. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a lens structure for focusing and locking, which aims to solve the problem that the current manual focusing process is cumbersome and that the locking screws used for locking lenses are prone to loosening when subjected to vibration or impact, thus losing their function of securing the lens, resulting in out-of-focus images and unclear images.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a focusing and locking lens structure, which includes a fixed lens mount, a focusing mechanism coaxially disposed within the fixed lens mount, a lens coaxially disposed within the focusing mechanism, and an adjustment mechanism disposed on the fixed lens mount.

[0007] The focusing mechanism includes a focusing lens barrel, a focusing ring disposed between the focusing lens barrel and the fixed lens mount, a locking gear and a limiting ring movably connected to one end of the focusing lens barrel, and a locking pressure ring and a focusing gear disposed between the locking gear and the focusing ring.

[0008] The focusing ring is connected to the focusing lens barrel by a guide screw. The adjustment mechanism drives the focusing gear to rotate, thereby causing the focusing ring and the lens to move axially to achieve focusing. At the same time, the adjustment mechanism drives the locking gear to rotate, thereby causing the focusing gear to move in the direction of the fixed lens mount to lock the focusing ring.

[0009] In summary, the focusing and locking lens structure proposed in this utility model achieves focusing and locking through an adjustment mechanism, solving the problem of cumbersome manual focusing in traditional lenses. This makes the lens easier to assemble and adjust, improving the precision and accuracy of focusing. It also solves the problem of poor locking effect when using screws in traditional lenses, further enhancing the locking effect and efficiency, ensuring the lens can be used even in harsh environments. Specifically, the adjustment mechanism drives the focusing gear to rotate, thereby causing the focusing ring and the lens to move axially. Then, the guide screw, which slides with the focusing ring, moves the lens back and forth, thus achieving the focusing function. Simultaneously, the adjustment mechanism drives the locking gear to rotate, causing the focusing gear to move in a direction that fixes the lens mount. Friction prevents the focusing gear from rotating further, thus preventing the focusing ring from rotating and the lens from moving back and forth, thereby achieving the locking function.

[0010] According to one aspect of the above technical solution, the adjustment mechanism includes a focusing component and a locking component disposed on the fixed lens mount, and both the focusing component and the locking component are fixedly connected to the platform surface on the fixed lens mount.

[0011] According to one aspect of the above technical solution, the focusing assembly includes a first frame fixedly connected to the platform surface, a first drive member disposed on the first frame, and a first drive gear disposed on the first drive member, wherein the first drive gear meshes with the focusing gear.

[0012] According to one aspect of the above technical solution, the locking assembly includes a second frame fixedly connected to the platform surface, a second drive member disposed on the second frame, and a second drive gear disposed on the second drive member, wherein the second drive gear meshes with the locking gear.

[0013] According to one aspect of the above technical solution, the guide screw is sequentially inserted into the focusing ring, the focusing lens barrel, and the lens.

[0014] According to one aspect of the above technical solution, the locking gear has a first boss on the side near the locking pressure ring, and the first boss is used to abut against the locking pressure ring.

[0015] According to one aspect of the above technical solution, the focusing gear is provided with a third protrusion on the side near the focusing ring, and the third protrusion is used to be embedded in the focusing ring.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the focusing and locking lens structure in one embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional schematic diagram of the focusing and locking lens in one embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the assembly of the lens and the focusing lens in one embodiment of the present invention;

[0020] Figure 4 This is another perspective view of the lens and focusing lens after assembly in one embodiment of this utility model.

[0021] Component symbol explanation in the attached diagram:

[0022] 1. Lens; 11. Guide screw; 101. First screw hole; 2. Focusing lens barrel; 201. First straight groove; 202. Second screw hole; 211. First groove; 212. First oblique groove; 22. Focusing ring; 221. First gear; 222. First boss; 23. Limiting ring; 24. Locking pressure ring; 241. Second boss; 25. Focusing gear; 251. Third boss; 252. Second gear; 26. Fastening screw; 3. Fixed lens mount; 301. Platform surface; 302. Through hole; 41. Focusing assembly; First frame 411; First drive component 412; First drive gear 413; 42. Locking assembly; First frame 421; First drive component 422; First drive gear 423. Detailed Implementation

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "upper," "lower," and similar expressions used herein are for illustrative purposes only and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0025] In this utility model, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items.

[0026] Please see Figures 1-4 The diagram shows a focusing and locking lens structure according to an embodiment of the present invention. The focusing and locking lens structure includes a fixed lens mount 3, a focusing mechanism coaxially disposed within the fixed lens mount 3, a lens 1 coaxially disposed within the focusing mechanism, and an adjustment mechanism disposed on the fixed lens mount 3, wherein:

[0027] To achieve the focusing function, the focusing mechanism includes a focusing lens barrel 2, a focusing ring 22 disposed between the focusing lens barrel 2 and the fixed lens mount 3, a locking gear and a limiting ring 23 movably connected to one end of the focusing lens barrel 2, and a locking pressure ring 24 and a focusing gear 25 disposed between the locking gear and the focusing ring 22. The focusing ring 22 is rotatably connected to the focusing lens barrel 2 and can rotate on the focusing lens barrel 2. The focusing ring 22, the focusing lens barrel 2, and the lens 1 are connected by a guide screw 11 so that when the focusing ring 22 rotates on the focusing lens barrel 2, it drives the lens 1 to move back and forth. The locking gear and the limiting ring 23 are connected to the front end of the focusing lens barrel 2 by threads. The locking gear is located between the limiting ring 23 and the focusing lens barrel 2 and can rotate axially by threads. The locking pressure ring 24 is located between the locking gear and the focusing gear 25 and is embedded in the shoulder groove at the front end of the focusing lens barrel 2. The focusing gear 25 is located between the focusing lens barrel 2, the focusing ring 22 and the fixed lens mount 3, and can rotate to drive the focusing ring 22 to rotate.

[0028] In addition, a through hole 302 is provided on the fixed lens mount 3, and a second screw hole 202 is provided on the focusing lens barrel 2, and the fixed lens mount 3 and the focusing lens barrel 2 are connected by a fastening screw 26.

[0029] In this embodiment, the adjustment mechanism includes a focusing assembly 41 and a locking assembly 42 disposed on the fixed lens mount 3. Both the focusing assembly 41 and the locking assembly 42 are fixedly connected to the platform surface 301 on the fixed lens mount 3. The focusing assembly 41 acts on the focusing gear 25, driving the focusing gear 25 to rotate and simultaneously driving the focusing ring 22 to rotate. Then, the guide screw 11, which slides with the focusing ring 22, drives the lens 1 to move back and forth, thereby realizing the focusing function.

[0030] Specifically, the focusing assembly 41 includes a first frame 411 fixedly connected to the platform surface 301, a first drive member 412 disposed on the first frame 411, and a first drive gear 413 disposed on the first drive member 412, the first drive gear 413 being meshed with the focusing gear 25. The first frame 411 is fixedly connected to the outer platform surface 301 of the fixed lens mount 3 by fasteners. The first drive gear 413 meshes with the second gear 252 on the focusing gear 25. The first drive member 412 drives the first drive gear 413 and drives the focusing gear 25 to rotate. The inner side of the focusing gear 25 is provided with a third protrusion 251, which is embedded in the first groove 211 on the focusing ring 22 and can drive the focusing ring 22 to rotate. The guide screw 11 is slidably engaged in the first inclined groove 212 that passes through the outside of the focusing ring 22. The guide screw 11 is slidably engaged with the first straight groove 201 on the outside of the focusing lens barrel 2 and is connected and fixed to the first screw hole 101 on the outside of the lens 1. Then, by moving the guide screw 11 along the first inclined groove 212 and the first straight groove 201, the lens 1 is moved back and forth synchronously to achieve focusing.

[0031] Furthermore, to achieve the locking function, the locking assembly 42 includes a second frame 421 fixedly connected to the platform surface 301, a second drive member 422 disposed on the second frame 421, and a second drive gear 423 disposed on the second drive member 422. The second drive gear 423 meshes with the locking gear. The second drive gear 423 drives the locking gear to rotate, and the rotating locking gear gradually presses the locking pressure ring 24 to the right. The locking pressure ring 24 moves to the right and gradually presses the focusing gear 25 until the right end face of the focusing gear 25 is pressed tightly against the left end face of the fixed lens mount 3. The friction force prevents the focusing gear 25 from rotating further, thus preventing the rotation of the focusing ring 22 and the forward and backward movement of the lens 1, thereby achieving the locking function.

[0032] Specifically, the second frame 421 is fixedly connected to the outer platform surface 301 of the fixed lens barrel by screws. The second drive gear 423 meshes with the first gear 221 on the locking gear. The second drive member 422 drives the first gear 221 to rotate, and drives the locking gear to rotate and move to the right. The right end face of the locking gear is provided with a first protrusion 222 of an annular structure. The first protrusion 222 and the locking pressure ring 24 gradually approach each other until they are completely fitted. The right end face of the locking pressure ring 24 is provided with a second protrusion 241. The locking pressure ring 24 continues to move to the right synchronously until the second protrusion 241 and the focusing gear 25 also gradually approach each other until they are completely fitted. The focusing gear 25 continues to move to the right synchronously, gradually approaching the left end face of the fixed lens mount 3 until it is completely fitted, until the focusing gear 25 can no longer drive the focusing ring 22 to rotate, thereby restricting the forward and backward movement of the lens 1 and achieving locking.

[0033] Compared to traditional lenses 1 that require manual focusing and screw fastening, this invention employs a combined structure consisting of a focusing ring 22, a locking gear, a limiting ring 23, a locking pressure ring 24, and a focusing gear 25. This structure can perform both focusing and locking functions, resulting in high reliability and fast, accurate focusing.

[0034] In summary, the focusing and locking lens structure proposed in this utility model achieves focusing and locking through an adjustment mechanism, solving the problem of cumbersome manual focusing in traditional lenses. This makes the lens easier to assemble and adjust, improving the precision and accuracy of focusing. It also solves the problem of poor locking effect when using screws in traditional lenses, further enhancing the locking effect and efficiency, ensuring the lens can be used even in harsh environments. Specifically, the adjustment mechanism drives the focusing gear to rotate, thereby causing the focusing ring and the lens to move axially. Then, the guide screw, which slides with the focusing ring, moves the lens back and forth, thus achieving the focusing function. Simultaneously, the adjustment mechanism drives the locking gear to rotate, causing the focusing gear to move in a direction that fixes the lens mount. Friction prevents the focusing gear from rotating further, thus preventing the focusing ring from rotating and the lens from moving back and forth, thereby achieving the locking function.

[0035] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A focusing and locking lens structure, characterized in that, The focusing and locking lens structure includes a fixed lens mount, a focusing mechanism coaxially disposed within the fixed lens mount, a lens coaxially disposed within the focusing mechanism, and an adjustment mechanism disposed on the fixed lens mount. The focusing mechanism includes a focusing lens barrel, a focusing ring disposed between the focusing lens barrel and the fixed lens mount, a locking gear and a limiting ring movably connected to one end of the focusing lens barrel, and a locking pressure ring and a focusing gear disposed between the locking gear and the focusing ring. The focusing ring is connected to the focusing lens barrel by a guide screw. The adjustment mechanism drives the focusing gear to rotate, thereby causing the focusing ring and the lens to move axially to achieve focusing. At the same time, the adjustment mechanism drives the locking gear to rotate, thereby causing the focusing gear to move in the direction of the fixed lens mount to lock the focusing ring.

2. The focusing and locking lens structure according to claim 1, characterized in that, The adjustment mechanism includes a focusing component and a locking component disposed on the fixed lens mount, and both the focusing component and the locking component are fixedly connected to the platform surface on the fixed lens mount.

3. The focusing and locking lens structure according to claim 2, characterized in that, The focusing assembly includes a first frame fixedly connected to the platform surface, a first drive member disposed on the first frame, and a first drive gear disposed on the first drive member, wherein the first drive gear meshes with the focusing gear.

4. The focusing and locking lens structure according to claim 3, characterized in that, The locking assembly includes a second frame fixedly connected to the platform surface, a second drive member disposed on the second frame, and a second drive gear disposed on the second drive member, wherein the second drive gear meshes with the locking gear.

5. The focusing and locking lens structure according to claim 1, characterized in that, The guide screws are sequentially inserted through the focusing ring, the focusing lens barrel, and the lens.

6. The focusing and locking lens structure according to claim 1, characterized in that, The locking gear has a first boss on the side near the locking pressure ring, and the first boss is used to abut against the locking pressure ring.

7. The focusing and locking lens structure according to claim 6, characterized in that, The focusing gear has a third protrusion on the side near the focusing ring, and the third protrusion is used to be embedded in the focusing ring.

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