Bilateral focusing structure and optical lens
By setting synchronized knobs on both sides of the optical lens housing, rotational motion is converted into linear motion, solving the problem of not being able to focus with both hands in the existing technology, and improving the convenience and flexibility of focusing.
Patent Information
- Application Number
- CN202423176740.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing optical lenses do not allow for dual-hand focusing from either side of the lens, making them inconvenient to use.
Synchronous knobs are set on both sides of the optical lens housing. Through the cooperation of rotating and moving parts, the rotational motion is converted into linear motion, which drives the lens barrel to move along the axis for focusing.
It enables simultaneous focusing with both hands on both sides of the lens, improving the convenience and flexibility of focusing.
Smart Images
Figure CN223526567U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of optical equipment, in particular to a double-side focusing structure and optical lens. BACKGROUND
[0002] The front optical equipment usually needs an optical lens as an objective lens to generate an image in use, and the theoretical distance between the optical lens and the core of the optical equipment is certain, but the distance needs to be adjusted, that is, focusing, in the use process to ensure clear imaging.
[0003] The optical lens on the market usually has a focusing knob, which is located on one side of the optical lens. The focusing knob drives the lens to extend or retract through mechanical transmission gears. The above-mentioned method is suitable for single-handed operation of focusing, but cannot focus on the other side of the lens and cannot meet the operation requirement of double-handed focusing, and is inconvenient to use.
[0004] Therefore, in view of the above technical problems, how to realize double-handed focusing on both sides of the lens is a technical problem to be solved by those skilled in the art. CONTENT OF THE UTILITY MODEL
[0005] The purpose of the present application is to provide a double-side focusing structure and optical lens, which can realize focusing on both sides of the shell by setting the synchronous knobs on both sides of the shell in linkage, and meet the operation requirement of double-handed focusing at the same time.
[0006] To achieve the above-mentioned purpose, the present application provides a double-side focusing structure installed in a shell, comprising a rotating member transversely arranged in the shell, synchronous knobs respectively arranged on the left and right sides of the rotating member and exposed outside the shell, and a movable member arranged in the shell.
[0007] The synchronous knobs are used to respectively receive external force to drive the rotating member to rotate. The movable member is connected with the rotating member and the lens barrel in the shell, and the movable member is driven to move by the rotation of the rotating member, so as to control the lens barrel to move axially to realize focusing.
[0008] Preferably, the movement direction of the movable member is different from the axial direction of the lens barrel. The movable member moves axially along the rotating member. The movable member and the lens barrel convert the linear motion of the movable member into the axial motion of the lens barrel through a wedge structure.
[0009] Preferably, the rotating member and the movable member are screw-connected to form a screw-nut structure of the movable member moving axially along the rotating member.
[0010] Preferably, the rotating member comprises a transmission rod penetrating the movable member, the movable member moves axially along the transmission rod, the transmission rod is provided with a helical groove in the outer periphery, the movable member is provided with a clamping member extending into the helical groove, and the clamping member is limited and clamped with the helical groove in the axial direction of the transmission rod.
[0011] Preferably, one of the movable member or the lens barrel is provided with an inclined groove, and the other is provided with a push rod coupled with the inclined groove, and the inclined groove is arranged obliquely relative to the movement direction of the movable member to form the wedge structure.
[0012] Preferably, the housing is provided with a guide rod penetrating the movable member, the guide rod is parallel to the transmission rod to limit the movement of the movable member only in the axial direction of the guide rod and the transmission rod.
[0013] Preferably, the helical groove is an equal-width groove regularly encircling the transmission rod, and the clamping member comprises a limiting pin which is detachably arranged on the movable member by a locking bolt.
[0014] Preferably, the synchronous knob is coaxially arranged with the transmission rod.
[0015] Preferably, the movement direction of the movable member is the same as the axial direction of the lens barrel, and the movable member is fixedly connected with the lens barrel.
[0016] Preferably, the guiding mechanism comprises a guiding column arranged on one of the lens barrel or the housing, and a guiding groove extending in the axial direction, and the guiding column is coupled with the guiding groove to limit the movement of the guiding column in the extending direction of the guiding groove.
[0017] An optical lens comprises a housing, and the housing is provided with a lens barrel at one end, wherein the above-mentioned double-side focusing structure is arranged in the housing, and the axial movement of the lens barrel is driven by the rotational movement of the focusing structure.
[0018] With respect to the above background technology, the rotating member is driven to rotate by the synchronous knobs on both sides of the housing, the rotating member cooperates with the movable member to convert the rotational movement of the rotating member into the movement of the movable member, the movable member is connected with the lens barrel to drive the lens barrel to perform the telescopic movement in the axial direction, and the focusing is realized. The focusing can be realized by two synchronous knobs on both sides of the housing, and the two synchronous knobs rotate synchronously, and the double-hand synchronous focusing can also be realized. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced. Obviously, the accompanying drawings in the following description only represent some embodiments of the present application, and all other drawings obtained by those of ordinary skill in the art without creative effort based on the provided drawings can also be obtained.
[0020] Figure 1 The optical lens external structure schematic diagram provided by the embodiments of the present application;
[0021] Figure 2 The double-side focusing structure explosion schematic diagram provided by the embodiments of the present application;
[0022] Figure 3 The double-side focusing structure cross-sectional view provided by the embodiments of the present application.
[0023] In the figure: 1- housing; 11- guide groove;
[0024] 2- synchronization knob;
[0025] 3- rotating member; 31- helical groove;
[0026] 4- lens barrel; 41- guide column; 42- push rod;
[0027] 5- guide rod;
[0028] 6- movable member; 61- rotating member guide hole; 62- helical groove position; 63- guide rod guide hole; 64- limit pin; 65- locking bolt; 66- inclined groove. DETAILED DESCRIPTION
[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments only represent some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.
[0030] It should be noted that in the present embodiment, the directions or position relationships indicated by “up”, “down”, “front”, “back” and the like are based on the directions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and thus cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be understood as limiting the present application. In addition, “first”, “second”, “third”, “fourth” are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0031] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0032] like Figure 1 As shown, in this embodiment, a dual-side focusing structure is provided. This structure is disposed on the optical lens. Through this structure, simultaneous focusing on both sides of the lens can be achieved. Single-hand focusing can be achieved by rotating the synchronization knob 2 on either side of the lens, or simultaneous focusing on both sides of the lens can be achieved.
[0033] Specifically, please refer to Figure 1 and 2 The structure is installed inside the housing 1 and includes a rotating component 3 that extends laterally through the housing 1. Synchronization knobs 2 are located on both sides of the rotating component 3, meaning the two synchronization knobs 2 are linked together via the rotating component 3 to achieve synchronized rotation. The two synchronization knobs 2 can be exposed relative to the housing 1, allowing for direct rotation by both hands.
[0034] The rotating component 3 is rotatably mounted on the housing 1 and has a stable axis of rotation. In some embodiments, the rotating component 3 can penetrate the housing 1 and its two ends can extend outside the housing 1, thereby fixing two synchronization knobs 2 at the ends of the rotating component 3. When the rotating component 3 penetrates the housing 1, the housing 1 will form circumferential support for the rotating component 3 at the penetration point, thereby supporting the rotating component 3 to be mounted on the housing 1 with a stable axis of rotation.
[0035] Please refer to Figure 2 The rotating component 3 is equipped with a cooperating movable component 6. The two work together to convert the rotational motion of the rotating component 3 into the linear motion of the movable component 6. As can be seen from the above, the function of the synchronization knob 2 is to drive the rotating component 3 to rotate along a stable axis when rotated by hand. The cooperation between the movable component 6 and the rotating component 3 converts the rotational motion of the rotating component 3 into the linear motion of the movable component 6.
[0036] Specifically, there are several ways to convert rotary motion into linear motion. For example, a lead screw and nut configuration, where the rotating part 3 is the lead screw and the corresponding moving part 6 is the nut, allows the nut to move linearly along the lead screw axis through rotation. Another example is a gear and rack configuration, where the rotating part 3 is the gear and the corresponding moving part 6 is the rack, converting the rotational motion of the gear into the linear motion of the rack. These conversion methods, including but not limited to those described above, will not be detailed here. The key is ensuring that rotary motion can be converted into linear motion, and all such methods fall within the scope of this application.
[0037] Based on the linear motion of the movable part 6, the movable part 6 can be connected to the lens barrel 4, thereby applying the linear motion of the movable part 6 to the lens barrel 4, thereby driving the lens barrel 4 to perform telescopic motion along the axial direction to achieve focusing.
[0038] It is worth noting that there are many ways to convert the above-mentioned rotary motion into linear motion, but for the moving part 6, there are only two forms of linear motion, the first is that the linear motion direction of the moving part 6 is the same as the axial direction of the lens barrel 4, and the second is that the linear motion direction of the moving part 6 is different from the axial direction of the lens barrel 4; for the first motion mode, the moving part 6 and the lens barrel 4 can be directly fixedly connected, that is, the lens barrel 4 can be directly driven to perform telescopic motion by the moving part 6; for the second motion mode, since the moving direction of the moving part 6 is different from that of the lens barrel 4, the moving part 6 and the lens barrel 4 need to be movably connected through a wedge structure, a connecting rod mechanism or the like, so as to convert the linear motion of the moving part 6 into the axial motion of the lens barrel 4, and then realize the reciprocating linear motion of the lens barrel 4 in the axial direction. Of course, for the mechanism for movably connecting the moving part 6 and the lens barrel 4, including but not limited to the above-mentioned mode, it will not be described one by one here, and all fall within the scope of protection of the present application.
[0039] It needs to be supplemented that the moving direction of the moving part 6 and the axial direction of the lens barrel 4 are compared in three-dimensional space, wherein the linear motion direction of the moving part 6 is different from the axial direction of the lens barrel 4, including that the two motion directions are perpendicular to each other in space, and the two motion directions are obliquely intersected in space; and the axial direction of the lens barrel 4 is relatively fixed, and the moving direction of the moving part 6 can be selected to be the same as or different from the axial direction of the lens barrel 4 in space according to actual conditions.
[0040] In combination with the above-mentioned embodiments, the present application drives the rotating part 3 to rotate through the synchronous knobs 2 on both sides of the shell 1, the rotating part 3 cooperates with the moving part 6 to convert the rotary motion of the rotating part 3 into the motion of the moving part 6, the moving part 6 is connected with the lens barrel 4, so as to drive the lens barrel 4 to perform telescopic motion along the axial direction, and realize focusing. The present application can realize focusing through two synchronous knobs 2 on both sides of the shell 1, and the two synchronous knobs 2 are synchronously rotated, and double-hand synchronous focusing can also be realized.
[0041] In the embodiments of the present application, the rotating part 3 and the moving part 6 adopt the form of screw nut cooperation, that is, the rotating part 3 acts as a screw rod, and the moving part 6 acts as a nut, so as to realize the axial motion of the moving part 6 along the rotating part 3; specifically, the rotating part 3 includes a transmission rod penetrating through the moving part 6, the transmission rod is a columnar structure, and its axis is the rotary axis. The moving part 6 is provided with a rotating part guide hole 61, the transmission rod penetrates through the moving part 6 through the rotating part guide hole 61, and the inner diameter of the rotating part guide hole 61 cooperates with the outer diameter of the transmission rod, so as to limit the axial motion of the moving part 6 along the transmission rod.
[0042] The transmission rod is provided with a helical groove 31. The number of turns of the helical groove 31 is not limited here. The movable part 6 is provided with a clamping part inserted into the helical groove 31. The clamping part is clamped with the helical groove 31 in the axial direction of the transmission rod. When the transmission rod rotates, the position of the transmission rod in the axial direction does not change, but the position of the helical groove 31 in the axial direction changes. The clamping part clamped with the helical groove 31 in the axial direction moves axially with the change of the position of the helical groove 31, thereby realizing the movement of the movable part 6 in the axial direction of the transmission rod.
[0043] In some embodiments, the helical groove 31 can be regarded as an external thread on the outer periphery of the lead screw. The corresponding clamping part can be regarded as an internal thread on the inner periphery of the nut. The external thread on the outer periphery of the lead screw cooperates with the internal thread on the inner periphery of the nut. When the lead screw rotates, the nut can move axially.
[0044] Further, to ensure that the clamping part can move stably under the limiting action of the thread groove, the helical groove 31 can be provided as a regular and equal-width groove around the transmission rod. Of course, the external thread on the outer periphery of the lead screw is usually a regular and equal-width groove. The corresponding clamping part can be a limiting pin 64. Please refer to Figure 2 The limiting pin 64 can be inserted into the helical groove 31. The limiting pin 64 can be detachably arranged on the movable part 6 by a locking bolt 65.
[0045] On the basis of the above-mentioned embodiments, please refer to Figure 2 The movable part 6 is further provided with a helical groove position 62 corresponding to the position of the helical groove 31. The limiting pin 64 is located on the movable part 6 corresponding to the position of the helical groove position 62. The limiting pin 64 can be inserted into the helical groove 31 at the helical groove position 62.
[0046] It should be noted that, since the helical groove 31 in the embodiments of the present application is a relatively short groove, a part of the protruding columnar structure can be provided on the transmission rod. The helical groove 31 can be arranged on the protruding columnar structure. The columnar structure can be matched with the inner wall of the helical groove position 62 to form a circumferential support structure similar to the rotating part guide hole 61, thereby enabling the movable part 6 to have at least two positions capable of realizing circumferential support with the rotating part 3, and ensuring the stability of the axial movement of the movable part 6 along the rotating part 3.
[0047] In addition, in order to ensure that the movable element 6 only moves linearly along the axis of the rotating element 3, the housing 1 is provided with a guide rod 5, and the movable element 6 is provided with a guide rod guide hole 63, the guide rod 5 penetrates the movable element 6 through the guide rod guide hole 63, and the outer diameter of the guide rod 5 can be matched with the inner diameter of the guide rod guide hole 63, so that under the joint action of the guide rod 5 and the rotating element 3, the movement of the movable element 6 is limited to the axial direction of the guide rod 5 and the transmission rod, and rotation and other situations are avoided. Of course, the guide rod 5 and the transmission rod are coaxially arranged, and the synchronous knob 2 and the transmission rod are coaxially arranged, so as to avoid the transmission rod from revolving around its axis while rotating around its axis, and to avoid affecting the fitting degree of the transmission rod and the movable element 6.
[0048] For the connection mode of the movable element 6 and the lens barrel 4, when the movement direction of the movable element 6 is the same as the axial direction of the lens barrel 4, for example, the rotating element 3 and the movable element 6 are in a gear and rack matching mode, that is, the rotating element 3 includes a gear, and the movable element 6 includes a rack, the movement direction of the rack can be consistent with the axial direction of the lens barrel 4, at this time, the rack and the lens barrel 4 are directly fixedly connected, so as to ensure that the linear movement direction of the movable element 6 is the same as the axial direction of the lens barrel 4.
[0049] In the embodiment, when the linear movement direction of the movable element 6 is different from the axial direction of the lens barrel 4, the connection mode of the movable element 6 and the lens barrel 4 of the present application adopts a movable connection, please refer to Figure 3 , one of the movable element 6 or the lens barrel 4 is provided with an inclined groove 66, and the other is provided with a push rod 42, the inclined groove 66 is arranged obliquely relative to the movement direction of the movable element 6, the push rod 42 can be inserted into the inclined groove 66, and the push rod 42 and the inclined groove 66 are arranged relative to each other in a sliding manner, at the same time, the outer wall of the push rod 42 can abut against the groove wall of the inclined groove 66, so that through the linear movement of the movable element 6, the position of the inclined groove 66 relative to the push rod 42 is changed, and after the position of the inclined groove 66 is changed, the groove wall of the inclined groove 66 will be extruded by the push rod 42, so as to drive the push rod 42 to slide in the inclined groove 66, thereby forming a wedge mechanism for converting the linear movement of the movable element 6 into the axial movement of the lens barrel 4.
[0050] In addition, in order to limit the movement of the lens barrel 4 to be only along its axial direction, the present application further comprises a guide mechanism, please refer to Figure 1 and Figure 2The guiding mechanism includes a guiding column 41 arranged on one of the lens barrel 4 or the housing, and the other one is provided with an axially extending guiding groove 11. The guiding column 41 is coupled with the guiding groove 11, and the guiding column 41 is inserted into the guiding groove 11 to limit the movement of the guiding column 41 in the extending direction of the guiding groove 11, and the extending direction of the guiding groove 11 is the same as the axial direction of the lens barrel 4. Of course, the guiding mechanism includes but is not limited to the above arrangement, for example, a sliding groove is arranged on the inner wall of the housing 1 along the axial direction, and the outer wall of the lens barrel 4 is provided with a sliding block that interacts with the sliding groove, so that the lens barrel 4 moves along the axial direction. For another example, a linear guide rail mechanism is arranged between the housing 1 and the lens barrel 4, and the movement direction of the linear guide rail is the axial direction of the lens barrel 4, so that the lens barrel 4 moves along the axial direction. Here, it is not necessary to describe one by one, and they all fall within the protection scope of the present application.
[0051] The present application also provides an optical lens, which includes a housing 1, a lens barrel 4 and a focusing structure. The lens barrel 4 is arranged at one end of the housing 1 and can move along the axial direction of the housing 1. The focusing structure is the above-mentioned double-side focusing structure, and the focusing structure is arranged in the housing 1 and drives the lens barrel 4 to move along the axial direction through the rotating movement of the rotating member 3 in the focusing structure.
[0052] It should be noted that the relational terms herein such as first and second are used only to differentiate one entity from another entity, and do not necessarily require or imply that there is any such actual relationship or order between these entities.
[0053] The principles and implementation modes of the present application are described by using specific examples in the present application, and the above description of the examples is only used to help understand the method and its core idea of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the claims of the present application.
Claims
1. A double-sided focusing structure installed in a housing (1), characterized in that, The rotating member (3) is arranged in the shell (1), the synchronous knobs (2) are arranged on the left and right sides of the rotating member (3) and exposed to the shell (1) respectively, and the movable member (6) is arranged in the shell (1); The synchronous knobs (2) are used for receiving external force on the left and right sides respectively to drive the rotating member (3) to rotate, the movable member (6) is connected with the rotating member (3) and the lens barrel (4) in the shell (1) respectively, the movable member (6) is driven to move by the rotation of the rotating member (3), and then the lens barrel (4) is controlled to move along the axial direction to realize focusing.
2. The dual-sided focusing structure of claim 1, wherein, The moving direction of the movable member (6) is different from the axial direction of the lens barrel (4), the movable member (6) moves along the axial direction of the rotating member (3), and the movable member (6) and the lens barrel (4) are connected through a wedge structure to convert the linear motion of the movable member (6) into the axial motion of the lens barrel (4).
3. The dual-sided focusing structure of claim 2, wherein, The rotating member (3) is threadedly connected with the movable member (6) to form a screw nut structure of the movable member (6) moving along the axial direction of the rotating member (3).
4. The dual-sided focusing structure of claim 3, wherein, The rotating member (3) comprises a transmission rod penetrating the movable member (6), the movable member (6) moves along the axial direction of the transmission rod, a spiral groove (31) is arranged on the outer periphery of the transmission rod, a clamping piece is arranged on the movable member (6) and extends into the spiral groove (31), and the clamping piece is limitingly clamped with the spiral groove (31) in the axial direction of the transmission rod.
5. The dual-sided focusing structure of claim 2, wherein, One of the movable member (6) and the lens barrel (4) is provided with an inclined groove (66), and the other is provided with a push rod (42) coupled with the inclined groove (66), the inclined groove (66) is arranged obliquely relative to the moving direction of the movable member (6) to form the wedge structure.
6. The dual-sided focusing structure of claim 4, wherein, The shell (1) is provided with a guide rod (5) penetrating the movable member (6), the guide rod (5) is parallel to the transmission rod to limit the axial motion of the movable member (6) along the guide rod (5) and the transmission rod.
7. The dual-sided focusing structure of claim 4, wherein, The spiral groove (31) is an equal-width groove regularly arranged on the transmission rod, the clamping piece comprises a limiting pin (64), and the limiting pin (64) is detachably arranged on the movable member (6) through a locking bolt (65).
8. The dual-sided focusing structure of claim 4, wherein, The synchronous knobs (2) are coaxially arranged with the transmission rod.
9. The dual-sided focusing structure of claim 1, wherein, The moving direction of the movable member (6) is the same as the axial direction of the lens barrel (4), and the movable member (6) is fixedly connected with the lens barrel (4).
10. The dual-sided focusing structure of claim 1, wherein, The guiding mechanism comprises a guide column (41) arranged on one of the lens barrel (4) and the shell (1) and an axially extending guide groove (11), the guide column (41) is coupled with the guide groove (11) to limit the motion of the guide column (41) in the extension direction of the guide groove (11).
11. An optical lens, characterized in that, The shell (1) is provided with a lens barrel (4) at one end, wherein the bilateral focusing structure of any one of claims 1-10 is arranged in the shell (1), and the rotation motion of the focusing structure drives the axial motion of the lens barrel (4).