An electrically-driven pan-zoom mechanism, optical device

Abstract

An electric drive horizontal zooming mechanism, comprising an external component and an internal component, the external component comprising a blocking ring, a rotating wheel, a transition ring, a switch, a wire groove and a motor, the blocking ring being connected with the transition ring through a thread, the rotating wheel being pressed on the transition ring through the blocking ring, and the inner wall of the rotating wheel being provided with a first thread; the internal component comprising a lens barrel and a lens group, the lens group being installed in the lens barrel; the internal component being connected with the external component through the rotating wheel; the switch being arranged on the blocking ring, the motor being arranged in the inner ring of the blocking ring, the motor being arranged at the end away from the connection between the blocking ring and the transition ring, the wire groove being arranged between the switch and the motor, the switch and the motor being electrically connected through the wire in the wire groove, the switch controlling the rotation of the motor to drive the rotation of the rotating wheel, and the lens barrel being moved horizontally, the present technical scheme can effectively improve the definition of imaging, has good sealing performance, can be applied to various environments, and can improve the portability during use by using the motor to drive zooming.

Description

Technical Field

[0001] This application belongs to the field of optical zoom, specifically relating to an electrically driven translational zoom mechanism and optical equipment. Background Technology

[0002] In optical systems, optical zoom is an essential component. Through the mechanical compensation of the optical system via the zoom mechanism, it can adapt to imaging needs at different distances and be adjusted for different user scenarios. Traditional slider zoom systems, due to the movement of optical lenses via the slider during zooming, cause the optical axis to constantly change during movement, significantly impacting the image quality of the entire optical system. Furthermore, this mechanism is prone to seizing up at low temperatures. Traditional cam-type zoom systems require high precision machining of the cam and gears, and most of these systems employ guide pin structures. Contact errors between the guide pin and the guide groove greatly affect image quality. Therefore, there is an urgent need to develop an electrically driven translational zoom mechanism to solve the aforementioned technical problems.

[0003] It should be noted that the above content is only used to help understand the technical solution of this utility model, and does not represent an admission that the above content is prior art. Summary of the Invention

[0004] In view of the above problems, this application provides an electrically driven translational zoom mechanism. The technical solution adopted in the embodiments of this application is as follows.

[0005] The first aspect of this utility model relates to an electric drive translation zoom mechanism, including an external component and an internal component. The external component includes a retaining ring, a rotating wheel, a transition ring, a switch, a wire groove, and a motor. The retaining ring and the transition ring are connected by threads. The rotating wheel is pressed onto the transition ring by the retaining ring. The inner wall of the rotating wheel is provided with a first thread.

[0006] The internal components include a lens barrel and a lens group, with the lens group installed inside the lens barrel;

[0007] Internal and external components are connected by a sliding wheel;

[0008] The switch is located on the retaining ring, and the motor is located on the inner ring of the retaining ring. The motor is located at the end away from the connection between the retaining ring and the transition ring. A wire groove is provided between the switch and the motor. The switch and the motor are electrically connected through the wires inside the wire groove. The switch controls the rotation of the motor, which drives the rotating wheel to rotate, so that the lens barrel moves horizontally.

[0009] In one specific implementation, the wheel rotates relative to the transition ring.

[0010] In one specific feasible implementation, the inner wall of the transition ring is provided with a first step, and a number of first grooves are provided on the first step. The first grooves are provided so that the optical axis changes as little as possible, ensuring the consistency of the image plane of the optical system and greatly improving the image clarity of the mechanism.

[0011] In one specific feasible implementation, the outer wall of the lens barrel is provided with a number of threaded bosses, which correspond one-to-one with a number of first sliding grooves. The threaded bosses reduce the threaded connection part of the electric drive translation zoom mechanism, reduce the resistance encountered during focusing, and further increase the stability of zooming.

[0012] In one specific feasible implementation, the outer wall of the lens barrel is further provided with several grooves, and sealing rings are installed in these grooves to enhance the sealing performance of the mechanism. The excellent sealing performance and high stability enable the device to withstand various environmental factors effectively, resulting in higher reliability.

[0013] In one specific implementation, the external component also includes a cover plate for enclosing the motor, further enhancing the mechanism's airtightness.

[0014] In one specific implementation scheme, the internal components also include a first pressure ring, a spacer, and a second pressure ring;

[0015] The lens assembly is pressed into the lens barrel by the first and second pressure rings and separated by spacers to improve the sealing of the lens barrel.

[0016] In one specific feasible implementation, the lens barrel includes a first mounting part, a second step, and a second mounting part. The inner wall of the first mounting part is conical. The end of the first mounting part with a smaller radius is connected to the upper step surface of the second step, and the lower step surface of the second step is connected to the second mounting part. The first mounting part, the second step, and the second mounting part are integrated into one unit, making the lens assembly fixed in the lens barrel less prone to loosening.

[0017] In one specific implementation, the lens assembly includes a first lens, a second lens, and a third lens. The second lens is mounted at the second step, and the third lens is mounted on the side of the second mounting portion away from the second step. The second and third lenses are separated by a spacer to prevent friction between the lenses and thus prevent wear. The second and third lenses are fixed to the second mounting portion by the second step and a first pressure ring.

[0018] The first lens is fixed to the first mounting part by the second pressure ring, and the lens is fixed to the end of the first mounting part away from the second step.

[0019] The second aspect of this utility model relates to an optical device, including the electrically driven translational zoom mechanism of the first aspect.

[0020] The beneficial effects of the technical solution provided in this application include at least the following: The electrically driven translational zoom mechanism designed in this application zooms via a threaded connection, resulting in smoother transmission and higher precision during adjustment. Due to the reduced threaded connection, the resistance encountered during focusing is decreased, further increasing zoom stability. The design of the first slide groove ensures that the optical lens does not rotate during zooming, minimizing changes in the optical axis, guaranteeing the consistency of the image plane of the optical system, and improving image clarity. This application abandons the traditional method of limiting the lens barrel with external guide pins, adopting an internal threaded adjustment method, which effectively seals and waterproofs, improving stability. A sealing ring and sealing cover are installed at the rotating connection, further solidifying the sealing of the focusing system. The excellent sealing and highly stable zoom mechanism enable the device to cope well with various environmental factors, exhibiting higher reliability. This application combines motor-driven zooming, converting electrical energy into mechanical energy. The zoom function is achieved by pressing a switch to drive the motor, eliminating the need for manual rotation and improving ease of use. Attached Figure Description

[0021] Figure 1 : A schematic cross-sectional view of an electrically driven translational zoom mechanism according to an embodiment of this application;

[0022] Figure 2 This application provides a partially enlarged cross-sectional schematic diagram of an electrically driven translational zoom mechanism according to an embodiment.

[0023] Figure 3 This application provides a three-dimensional schematic diagram of an electrically driven translational zoom mechanism according to an embodiment of the present application.

[0024] Figure 4 This application provides a three-dimensional schematic diagram of the internal components of an electrically driven translational zoom mechanism according to an embodiment.

[0025] Explanation of reference numerals in the attached drawings: 1. External component; 2. Internal component; 3. Lens group; 4. Lens barrel; 5. Transition ring; 6. Retaining ring; 7. Rotating wheel; 8. Switch; 9. Motor; 10. Cover plate; 101. Sealing ring; 102. Wire groove; 103. First pressure ring; 104. Spacer ring; 105. Second pressure ring; 106. Threaded boss; 107. First slide groove; 108. First step; 109. Second step; 110. First mounting part; 111. Second mounting part;

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0028] In this document, "multiple" refers to two or more. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not 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 a limitation of this application. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "setting" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0031] On the one hand, this application provides an electrically driven translational zoom mechanism, such as Figures 1-4 As shown, it includes external component 1 and internal component 2.

[0032] External component 1 includes a retaining ring 6, a rotating wheel 7, a transition ring 5, a switch 8, a wire groove 102, and a motor 9. The retaining ring 6 and the transition ring 5 are connected by threads. The rotating wheel 7 is pressed onto the transition ring 5 by the retaining ring 6 and rotates relative to the transition ring 5. The inner wall of the rotating wheel 7 is provided with threads. Internal component 2 includes a lens barrel 4 and a lens group 3. The lens group 3 is installed inside the lens barrel 4. Internal component 2 and external component 1 are slidably connected by the rotating wheel 7. The switch 8 is located on the retaining ring 6 and contains a power supply. The motor 9 is located on the inner ring of the retaining ring 6 and is located at the end away from the connection between the retaining ring 6 and the transition ring 5. A wire groove 102 is provided between the switch 8 and the motor 9. The switch 8 and the motor 9 are electrically connected through wires inside the wire groove 102. The outer wall of the lens barrel 4 is also provided with several grooves, and sealing rings 101 are provided in the grooves to enhance the sealing performance of the mechanism. The excellent sealing and high stability enable this device to cope well with various environmental factors and have higher reliability. The inner wall of the transition ring is provided with a first step 108, and the first step 108 is provided with several first sliding grooves 107. The first sliding grooves 107 prevent the optical lens from rotating during zooming, minimizing changes in the optical axis and ensuring the consistency of the image plane of the optical system. This greatly improves the image sharpness of the mechanism. The outer wall of the lens barrel 4 is provided with several threaded bosses 106, which connect with several first sliding grooves 107. The slide groove 107 corresponds one-to-one, and the threaded boss 106 reduces the threaded connection part of the electric drive translation zoom mechanism, reduces the resistance during focusing, and further increases the stability of zooming; the internal component 2 also includes a first pressure ring 103, a spacer 104, and a second pressure ring 105; the lens group 3 is pressed into the lens barrel by the first pressure ring 103 and the second pressure ring 105, and separated by the spacer 104 to improve the sealing of the lens barrel 4; the external component 1 also includes a cover plate 10, which is used to seal the motor and further enhance the sealing of the mechanism.

[0033] During installation, the lens group 3 is installed inside the lens barrel 4 via a retaining ring, and the lens group 3 is separated by a spacer 104; several sealing rings 101 are installed in several grooves on the outer wall of the lens barrel 4, the transition ring 5 is fitted onto the lens barrel 4, and several threaded bosses 106 on the outer wall of the lens barrel 4 correspond one-to-one with several first sliding grooves 107 on the inner wall of the transition ring 5; the rotating wheel 7 is pressed onto the transition ring 5 via a retaining ring 6, and the retaining ring 6 and the transition ring 5 are connected by threads; the switch 8 is installed on the outer wall of the retaining ring 6, the wire is installed in the wire groove 102, the motor 9 is installed inside the retaining ring 6 at the end away from the end connected to the transition ring 5, the switch 8 and the motor 9 are electrically connected by wires, and finally the sealing ring is installed on the external component 1 to seal the motor 9 in the external component 1.

[0034] When in use, press switch 8 to transmit power to motor 9 through wires inside wire groove 102, causing motor 9 to rotate. The inner ring of motor 9 drives the rotating wheel 7 to rotate. The thread on the inner wall of rotating wheel 7 drives the lens barrel 4 to move axially along the first sliding groove on the inner wall of transition ring 5, thereby realizing electric drive translation zoom.

[0035] Optionally, switch 8 is a waterproof switch, which improves the sealing of the mechanism and effectively prevents water and dust from entering the mechanism.

[0036] The outer ring of motor 9 is fixedly connected to the inner wall of retaining ring 6, and the inner ring of motor 9 is fixedly connected to the outer wall of rotating wheel 7. By driving the motor, electrical energy is converted into mechanical energy, eliminating the need for manual rotation and improving the convenience of use.

[0037] The lens barrel 4 includes a first mounting part 110, a second step 109, and a second mounting part 111. The inner wall of the first mounting part 110 is conical. The end of the first mounting part 110 with a smaller radius is connected to the upper step surface of the second step 109. The lower step surface of the second step 109 is connected to the second mounting part 111. The first mounting part 110, the second step 109, and the second mounting part 111 are integrated into one unit, making it difficult for the lens group 3 fixed inside the lens barrel 4 to loosen.

[0038] The lens group 3 includes a first lens, a second lens, and a third lens (not shown in the figure). The second lens is installed at the second step 109, and the third lens is installed on the side of the second mounting part 111 away from the second step 109. The second and third lenses are separated by a spacer 104 to prevent friction between the lenses and cause wear. The second and third lenses are fixed to the second mounting part 111 by the second step 109 and the first pressure ring 103.

[0039] The first lens is fixed to the first mounting part 110 by the second pressure ring 105, and the first lens is fixed to the end of the first mounting part 110 away from the second step 109.

[0040] On the other hand, this application provides an optical device, including an electrically driven translational zoom mechanism.

[0041] This application presents an electrically driven translational zoom mechanism that uses a threaded connection for zooming, resulting in smoother transmission and higher precision during adjustment. The reduced threaded connection decreases resistance during focusing, further enhancing zoom stability. The design of the first groove prevents the optical lens from rotating during zooming, minimizing changes in the optical axis and ensuring image plane consistency, significantly improving image sharpness. This application abandons the traditional method of using external guide pins to restrict the lens barrel, instead employing an internal threaded adjustment method, effectively sealing and waterproofing while improving stability. Sealing rings and covers are installed at the rotating connection points, further solidifying the focusing system's airtightness. The excellent sealing and highly stable zoom mechanism allow the device to withstand various environmental factors, exhibiting higher reliability. This application combines motor-driven zooming, converting electrical energy into mechanical energy. The zoom function is achieved by pressing a switch to drive the motor, eliminating the need for manual rotation and improving ease of use.

[0042] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. An electrically driven translational zoom mechanism, comprising external components and internal components, characterized in that: The external components include a retaining ring, a rotating wheel, a transition ring, a switch, a wire groove, and a motor; The retaining ring and the transition ring are connected by threads, the rotating wheel is pressed on the transition ring by the retaining ring, and the inner wall of the rotating wheel is provided with a first thread; The internal components include a lens barrel and a lens group, with the lens group installed inside the lens barrel; The internal component and the external component are slidably connected via the wheel; The switch is mounted on the retaining ring, and the motor is mounted on the inner ring of the retaining ring. The motor is located at the end away from the connection between the retaining ring and the transition ring. A wire groove is provided between the switch and the motor. The switch and the motor are electrically connected through the wire inside the wire groove. The switch controls the rotation of the motor, which drives the rotating wheel to rotate, causing the lens barrel to move horizontally.

2. The electrically driven translational zoom mechanism according to claim 1, characterized in that: The rotating wheel rotates relative to the transition ring.

3. The electrically driven translational zoom mechanism according to claim 1, characterized in that: The inner wall of the transition ring is provided with a first step, and a plurality of first grooves are provided on the first step.

4. The electrically driven translational zoom mechanism according to claim 3, characterized in that: The outer wall of the lens barrel is provided with a plurality of threaded bosses corresponding to a plurality of the first sliding grooves.

5. The electrically driven translational zoom mechanism according to claim 4, characterized in that: The outer wall of the lens barrel is also provided with several grooves, and a sealing ring is provided in several of the grooves.

6. The electrically driven translational zoom mechanism according to claim 1, characterized in that: The external component also includes a cover plate for enclosing the motor.

7. The electrically driven translational zoom mechanism according to claim 1, characterized in that: The lens barrel includes a first mounting part, a second step, and a second mounting part; The inner wall of the first mounting part is conical. The end of the first mounting part with a smaller radius is connected to the upper step surface of the second step. The lower step surface of the second step is connected to the second mounting part. The first mounting part, the second step, and the second mounting part are integrated into one unit.

8. The electrically driven translational zoom mechanism according to claim 7, characterized in that: The internal components also include a first pressure ring, a spacer ring, and a second pressure ring; The lens assembly is pressed into the lens barrel by the first and second pressure rings and separated by the spacer ring.

9. The electrically driven translational zoom mechanism according to claim 8, characterized in that: The lens group includes a first lens, a second lens, and a third lens; The second lens is installed at the second step, and the third lens is installed on the side of the second mounting part away from the second step. The second lens and the third lens are separated by the spacer ring. The second lens and the third lens are fixed to the second mounting part by the second step and the first pressure ring. The first lens is fixed to the first mounting part by the second pressure ring, and the lens is fixed at the end of the first mounting part away from the second step.

10. An optical device, characterized in that: Including an electrically driven translational zoom mechanism as described in any one of claims 1 to 9.

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