Control and detection device for optical zoom lens

Abstract

The utility model relates to the field of optical zoom lenses, and discloses an optical zoom lens control detection device which comprises an outer frame and a fixing frame, a fixed lens group is fixedly mounted on the inner wall of the outer frame, and an adjusting lens group is slidably connected to the inner wall of the outer frame. The size specifications of the surfaces of the fixed lens group and the adjusting lens group are matched with the size specification of the inner wall of the outer frame, a plurality of clamping grooves matched with the adjusting lens group are formed in the top of the fixed frame, and the bottom end of the fixed frame is meshed with a connecting gear; the connecting frame is mounted on the inner wall of the outer frame, the fixing frame is slidably mounted on the inner wall of the connecting frame, the clamping groove in the top of the fixing frame is clamped with the bottom end of the adjusting lens group, the bottom end of the fixing frame is meshed with the connecting gear, and one end of the connecting gear is connected with the detector through the synchronous belt, so that the detector can be conveniently detected when the fixing frame moves along with the adjusting lens group. One end of the detector is driven to rotate by means of the connecting gear and the synchronous belt, so that the moving distance of the adjusting lens group is detected by means of the detector.

Description

Technical Field

[0001] This application relates to the field of optical zoom lenses, and particularly to an optical zoom lens control and detection device. Background Art

[0002] An optical lens is an essential component in a machine vision system, directly affecting the quality of the imaging, the implementation and effect of algorithms. Optical lenses can be classified into short-focus lenses, medium-focus lenses, and long-focus lenses according to their focal lengths, and into wide-angle, standard, and telephoto lenses according to the field of view size; Structurally, there are fixed-aperture fixed-focus lenses, manual-aperture fixed-focus lenses, automatic-aperture fixed-focus lenses, manual zoom lenses, automatic zoom lenses, automatic-aperture motorized zoom lenses, motorized three-variable lenses, etc. Digital video cameras rely on the optical lens structure to achieve zoom. The optical zoom method of digital video cameras is similar to that of traditional 35mm cameras, that is, by moving the lens to magnify and reduce the scene to be photographed. The larger the optical zoom ratio, the farther the scene that can be photographed. When a conventional optical zoom lens is in use, the fixed lens group and the adjustment lens group are installed in the outer frame, and the adjustment lens group is moved along the inner wall of the outer frame to adjust the lens, facilitating the shooting of distant or near scenes.

[0003] Regarding the above related technologies, the inventor believes that when a conventional optical lens is zoomed, generally, the adjustment lens group is moved by rotating the adjustment structure on the surface of the lens. Generally, when adjusting, the adjustment distance and effect of the lens are roughly judged manually, resulting in the need for the user to manually control the focal length of the lens during use, which requires a high level of experience for the user.

[0004] The above information disclosed in this background art is only used to increase the understanding of the background art of this application. Therefore, it may include prior art that is not known to those of ordinary skill in the art. Summary of the Utility Model

[0005] In order to solve the problem that it is difficult to accurately position a conventional optical zoom lens during use, this application provides an optical zoom lens control and detection device.

[0006] The optical zoom lens control and detection device provided by this application adopts the following technical solutions:

[0007] Optical zoom lens control detection device, including an outer frame and a fixing frame. A fixed lens group is fixedly installed on the inner wall of the outer frame, and an adjusting lens group is slidably connected to the inner wall of the outer frame. The size specifications of the surfaces of the fixed lens group and the adjusting lens group are adapted to the size specifications of the inner wall of the outer frame. A number of card slots adapted to the adjusting lens group are provided at the top of the fixing frame, and a connecting gear is engaged at the bottom end of the fixing frame. A synchronous belt is drivingly connected to the surface of the connecting gear, and a detector is drivingly installed on the inner wall of the synchronous belt. The inner wall of the card slot is clamped with the surface of the adjusting lens group. A connecting frame is slidably connected to the surface of the fixing frame. The surface of the connecting frame is slidably installed on the inner wall of the outer frame, and both ends of the connecting gear are rotatably connected to the inner wall of the connecting frame.

[0008] Preferably, a sliding frame is fixedly connected to the bottom end of the fixing frame. Two fixing rods are slidably installed on the inner wall of the sliding frame. One end of each fixing rod is fixedly connected to the inner wall of the connecting frame. The two fixing rods are symmetrically distributed with respect to the sliding frame.

[0009] Preferably, a display is fixedly installed at the bottom end of the connecting frame. One end of the display is electrically connected to one end of the detector by means of a wire.

[0010] Preferably, a limiting block is fixedly installed at one end of the connecting frame. A connecting groove adapted to the limiting block is provided on the inner wall of the outer frame. The inner wall of the connecting groove is clamped with the surface of the limiting block.

[0011] Preferably, an auxiliary strip is fixedly connected to the surface of the connecting frame. The surface of the auxiliary strip is clamped with the inner wall of the outer frame, and the auxiliary strip is a rubber strip.

[0012] In summary, the present application includes the following beneficial technical effects:

[0013] 1. By installing the connecting frame on the inner wall of the outer frame, the fixing frame is slidably installed on the inner wall of the connecting frame. Card slots are provided at the top of the fixing frame. The inner wall of the card slot is clamped with the bottom end of the adjusting lens group. A connecting gear is engaged at the bottom end of the fixing frame. One end of the connecting gear is connected to the detector by means of a synchronous belt. So that when the fixing frame moves along with the adjusting lens group, one end of the detector is rotated by means of the connecting gear and the synchronous belt, thereby detecting the moving distance of the adjusting lens group by means of the detector. A sliding frame is fixedly installed at the bottom end of the fixing frame. The inner wall of the sliding frame is slidably connected to the surface of the fixing rod. So as to facilitate restricting the moving position of the fixing frame by means of the sliding frame and the fixing rod, effectively improving the stability of the fixing frame. One end of the detector is connected to the display by means of a wire. The top of the display is fixedly installed at the bottom end of the connecting frame. So as to facilitate displaying the data detected by the detector by means of the display, which is more convenient during use; Compared with the prior art, the use effect of the optical zoom lens is effectively improved;

[0014] 2. A limit block can also be installed at one end of the connection frame. The surface of the limit block is snap-fitted with the connection groove inside the outer frame, so as to facilitate the installation of the connection frame inside the outer frame by means of the limit block and the connection groove. And the connection frame can be disassembled by pressing the limit block to take it out of the connection groove. An auxiliary strip made of rubber is installed on the surface of the connection frame, and the surface of the auxiliary strip is snap-fitted with the inner wall of the outer frame, so as to avoid the entry of external water flow into the outer frame by means of the waterproof effect of the rubber material of the auxiliary strip; effectively improving the convenience of using the device. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the optical zoom lens control detection device according to the embodiment of the application;

[0016] Figure 2 is a schematic diagram of the fixed frame structure according to the embodiment of the application;

[0017] Figure 3 is a schematic diagram of the side view structure according to the embodiment of the application;

[0018] Figure 4 is a schematic diagram of the structure at position A according to the embodiment of the application.

[0019] Description of the reference numerals: 1. Outer frame; 2. Fixed lens group; 3. Adjustable lens group; 4. Fixed frame; 5. Card slot; 6. Connecting gear; 7. Synchronous belt; 8. Detector; 9. Fixed rod; 10. Sliding frame; 11. Display; 12. Connection frame; 13. Limit block; 14. Connection groove; 15. Auxiliary strip. Detailed Description of the Embodiment

[0020] The following will further describe the present application in detail with reference to Figure 1 —4.

[0021] The embodiment of the present application discloses an optical zoom lens control detection device. Referring to Figure 1 - Figure 2 , it includes an outer frame 1. When in use, the fixed lens group 2 and the adjustable lens group 3 are installed inside the outer frame 1. By means of the movement of the adjustable lens group 3 on the inner wall of the outer frame 1, the lens can be adjusted, facilitating the shooting of distant or near scenery. The connection frame 12 is installed on the inner wall of the outer frame 1. A fixed frame 4 is slidably installed on the inner wall of the connection frame 12. A card slot 5 is opened at the top of the fixed frame 4, and the inner wall of the card slot 5 is snap-fitted with the bottom end of the adjustable lens group 3. A connecting gear 6 is engaged at the bottom end of the fixed frame 4. One end of the connecting gear 6 is connected with a detector 8 by means of a synchronous belt 7. When the fixed frame 4 moves along with the adjustable lens group 3, the bottom end of the fixed frame 4 is connected with the top of the connecting gear 6 inside the connection frame 12. After the connecting gear 6 rotates, it drives one end of the detector 8 to rotate by means of the synchronous belt 7. The data detected by the detector 8 is imported into the camera, so as to detect the moving distance of the adjustable lens group 3 by means of the detector 8.

[0022] Refer to Figure 2 , a sliding frame 10 is fixedly installed at the bottom end of the fixing frame 4, and the inner wall of the sliding frame 10 is slidably connected to the surface of the fixing rod 9. By means of the sliding frame 10 and the fixing rod 9, it is convenient to limit the moving position of the fixing frame 4, effectively improving the stability of the fixing frame 4. One end of the detector 8 is connected to a display 11 by means of a wire, and the top of the display 11 is fixedly installed with the bottom end of the connection frame 12. By means of the display 11, the data detected by the detector 8 is displayed, so as to view the data of the lens when the camera is turned off, which is more convenient during use.

[0023] Refer to Figure 3 - Figure 4 , a limiting block 13 is installed at one end of the connection frame 12, and the surface of the limiting block 13 is clamped with the connection groove 14 in the outer frame 1. By means of the limiting block 13 and the connection groove 14, the connection frame 12 is installed in the outer frame 1, and the limiting block 13 can be taken out of the connection groove 14 by pressing the limiting block 13 to disassemble the connection frame 12, which is convenient for overhauling the components in the connection frame 12. An auxiliary strip 15 made of rubber is installed on the surface of the connection frame 12, and the surface of the auxiliary strip 15 is clamped with the inner wall of the outer frame 1. By means of the waterproof effect of the rubber material of the auxiliary strip 15, the outside water flow is prevented from entering the outer frame 1, effectively improving the sealing performance of the device.

[0024] The implementation principle of the optical zoom lens control detection device in the embodiment of the present application is as follows: by installing the connection frame 12 on the inner wall of the outer frame 1, a fixing frame 4 is slidably installed on the inner wall of the connection frame 12. A card slot 5 is opened at the top of the fixing frame 4, and the inner wall of the card slot 5 is clamped with the bottom end of the adjustment lens group 3. A connection gear 6 is engaged at the bottom end of the fixing frame 4, and one end of the connection gear 6 is connected to a detector 8 by means of a synchronous belt 7. So that when the fixing frame 4 moves following the adjustment lens group 3, the detector 8 is driven to rotate at one end by means of the connection gear 6 and the synchronous belt 7, thereby detecting the moving distance of the adjustment lens group 3 by means of the detector 8. A sliding frame 10 is fixedly installed at the bottom end of the fixing frame 4, and the inner wall of the sliding frame 10 is slidably connected to the surface of the fixing rod 9, so as to conveniently limit the moving position of the fixing frame 4 by means of the sliding frame 10 and the fixing rod 9, effectively improving the stability of the fixing frame 4. One end of the detector 8 is connected to a display 11 by means of a wire, and the top of the display 11 is fixedly installed with the bottom end of the connection frame 12, so as to display the data detected by the detector 8 by means of the display 11, which is more convenient during use.

[0025] A limit block 13 can also be installed at one end of the connection frame 12. The surface of the limit block 13 is clamped with the connection groove 14 in the outer frame 1, so as to facilitate the installation of the connection frame 12 in the outer frame 1 by means of the limit block 13 and the connection groove 14. And the connection frame 12 can be disassembled by pressing the limit block 13 to take the limit block 13 out of the connection groove 14. An auxiliary strip 15 made of rubber is installed on the surface of the connection frame 12. The surface of the auxiliary strip 15 is clamped with the inner wall of the outer frame 1, so as to avoid the outside water flow from entering the outer frame 1 by means of the waterproof effect of the rubber material of the auxiliary strip 15.

[0026] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited hereby. Therefore, all equivalent changes made according to the structure, shape and principle of this application should be covered within the protection scope of this application.

Claims

1. An optical zoom lens control and detection device, comprising an outer frame (1) and a fixing frame (4), characterized in that: A fixed mirror group (2) is fixedly mounted on the inner wall of the outer frame (1), and an adjustable mirror group (3) is slidably connected to the inner wall of the outer frame (1); the dimensions of the surfaces of the fixed mirror group (2) and the adjustable mirror group (3) are compatible with the dimensions of the inner wall of the outer frame (1); a plurality of slots (5) compatible with the adjustable mirror group (3) are provided on the top of the fixed frame (4); a connecting gear (6) is meshed at the bottom end of the fixed frame (4); a synchronous belt (7) is transmission-connected to the surface of the connecting gear (6); and a detector (8) is transmission-mounted on the inner wall of the synchronous belt (7).

2. The optical zoom lens control and detection device according to claim 1, characterized in that: The inner wall of the card slot (5) is card-engaged with the surface of the adjustment lens group (3); the surface of the fixing frame (4) is slidably connected with a connecting frame (12); the surface of the connecting frame (12) is slidably mounted with the inner wall of the outer frame (1); and the inner wall of the connecting frame (12) is rotatably connected with two ends of the connecting gear (6).

3. The optical zoom lens control and detection device according to claim 1, characterized in that: The bottom end of the fixed frame (4) is fixedly connected to a sliding frame (10), and two fixed rods (9) are slidably mounted on the inner wall of the sliding frame (10), one end of the fixed rod (9) is fixedly connected to the inner wall of the connecting frame (12), and the two fixed rods (9) are symmetrically distributed with the sliding frame (10) as an axis.

4. The optical zoom lens control and detection device according to claim 2, characterized in that: A display (11) is fixedly mounted on the bottom end of the connection frame (12), and one end of the display (11) is electrically connected to one end of the detector (8) by means of a wire.

5. The optical zoom lens control and detection device according to claim 2, characterized in that: A limit block (13) is fixedly mounted on one end of the connection frame (12); a connection groove (14) adapted to the limit block (13) is provided on the inner wall of the outer frame (1); and the inner wall of the connection groove (14) is snap-fitted to the surface of the limit block (13).

6. The optical zoom lens control and detection device according to claim 2, characterized in that: An auxiliary strip (15) is fixedly connected to the surface of the connection frame (12); the surface of the auxiliary strip (15) is clamped with the inner wall of the outer frame (1); and the auxiliary strip (15) is a rubber strip.

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