Detection device for automatic focusing lens

Abstract

The utility model relates to the technical field of lens detection, and discloses a detection device for an automatic focusing lens. The detection device for the automatic focusing lens comprises a base, a camera and the automatic focusing lens, the camera comprises a lens bayonet matched with the automatic focusing lens, the top of the base is fixedly connected with lead screws distributed in a bilateral symmetry mode, the outer sides of the lead screws are sleeved with the same movable plate, and the movable plate is fixedly connected with the base. The automatic focusing lens detection device has the advantages of being simple in structure, affordable, easy to operate and the like, and solves the problems that the automatic focusing lens needs to be detected regularly, the detection time is shortened, the detection efficiency is improved, and the detection cost is reduced. The problems that ordinary people can only simply detect the automatic focusing lens through shooting, and professional detection equipment is high in price and difficult to control for the ordinary people are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lens detection, in particular to a detection device for an automatic focusing lens. Background Art

[0002] With the development of technology and the improvement of people's living standards, more and more people are starting to buy products such as cameras to record moments in life and share them with more people, which has led to higher requirements on the quality of products. For photography enthusiasts, a large collection of cameras and autofocus lenses is essential at home.

[0003] An autofocus lens is a photographic device that automatically adjusts the distance between the lens and the subject to ensure that the subject forms a clear image on the camera's photosensitive element. This technology uses the principle of light reflection from an object to receive the reflected light through the sensor on the camera, and after computer processing, it drives the electric focus device to focus.

[0004] However, the long-term placement of the autofocus lens may cause it to be damaged due to factors in the placement environment, such as moisture or dust in the lens module, and then the autofocus lens needs to be tested regularly. For ordinary people, they can only simply test the autofocus lens by taking pictures. Professional testing equipment is expensive and difficult to use for ordinary people. Therefore, a testing device for autofocus lens is proposed to solve the above problem. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a detection device for an autofocus lens, which has the advantages of simple structure, affordable price, and simple operation. It solves the problem that the autofocus lens needs to be detected regularly, the general public can only detect the autofocus lens simply by taking pictures, and professional detection equipment is expensive and difficult to use for the general public.

[0007] (II) Technical solution

[0008] The utility model solves the above-mentioned technical problem with the following technical solution: a detection device for an autofocus lens, comprising a base, a camera and an autofocus lens, the camera comprising a lens mount adapted to the autofocus lens, a screw rod fixedly connected to the top of the base and symmetrically distributed, a same movable plate is sleeved on the outer side of the screw rod, a lifting assembly symmetrically distributed on the left and right and respectively located on the outer side of the screw rod is arranged inside the movable plate, the lifting assembly is threadedly connected to the screw rod and rotatably connected to the movable plate, a driving assembly meshed with the lifting assembly is arranged inside the movable plate, a slide groove symmetrically distributed on the bottom of the movable plate is fixedly connected, a same slide plate is slidably connected to the opposite side of the slide groove, a centering assembly extending to the front side of the movable plate is arranged on the top of the slide plate, and a clamp assembly symmetrically distributed on the left and right and adapted to the camera is arranged on the bottom of the slide plate.

[0009] The beneficial effects of the utility model are as follows: a sample is placed on the top of the base, a camera is clamped between the clamp components, an autofocus lens to be tested is installed below the lens mount of the camera, the centering component is rotated to drive the slide plate to move laterally on the opposite side of the slide slot, so that the autofocus lens is aligned with the sample, the camera and the driving component are electrically connected to the computer terminal, the driving component drives the movable plate and the camera to move up and down through the computer terminal, during the movement, the computer terminal enables the camera to shoot the sample at a specific height, the computer terminal compares the shot picture with the normal picture shot at the same height, so as to determine whether the autofocus lens is qualified. The detection device for the autofocus lens has the advantages of simple structure, affordable price, and simple operation.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the lifting assembly includes an internal threaded sleeve and a worm gear, the internal part of the movable plate is rotatably connected to the internal threaded sleeves which are symmetrically distributed on the left and right and are respectively threadedly connected to the screw rod, and the outer sides of the internal threaded sleeves are fixedly connected to the worm gear located in the movable plate;

[0012] Furthermore, the driving assembly includes a double-output shaft stepper motor and a worm, the double-output shaft stepper motor is arranged inside the movable plate, and the output ends of the double-output shaft stepper motor are fixedly connected to the worm meshing with the corresponding worm wheel.

[0013] The beneficial effect of adopting the above further scheme is that the double-output shaft stepper motor is rotated through the computer terminal, and the double-output shaft stepper motor then drives the worm to rotate synchronously. Since the worm and the worm wheel are meshing, the internal threaded sleeve is driven to rotate synchronously. The force generated by the rotation of the thread can drive the movable plate to move up and down on the outside of the screw.

[0014] Furthermore, the clamp assembly includes an assembly block, a pull rod, a clamp block and a spring. The bottom of the slide plate is fixedly connected with assembly blocks that are symmetrically distributed on the left and right. The opposite sides of the assembly blocks are slidably connected with pull rods extending to the opposite sides thereof. The opposite sides of the pull rods are fixedly connected with clamp blocks that are adapted to the camera. A spring located on the outside of the pull rod is provided between the clamp block and the adjacent assembly block.

[0015] The beneficial effect of adopting the above further scheme is that the pull rod is pulled to the opposite side, so that the pull rod slides to the opposite side, and then the spring is elastically deformed, so that the camera is located between the clamping blocks. The pull rod is released, and the spring recovers the elastic deformation force to clamp the camera between the clamping blocks. The camera is electrically connected to the computer terminal, and the autofocus lens to be tested is installed under the lens mount of the camera, and the camera installation is completed.

[0016] Furthermore, the centering component includes a rack, a transmission rod and a gear. The top of the skateboard is fixedly connected to a rack that is symmetrically distributed front and back. The front side of the rear slide groove is rotatably connected to a transmission rod that extends to the front side of the movable plate. The outer side of the transmission rod is fixedly connected to a gear that is symmetrically distributed front and back and meshes with the corresponding rack.

[0017] The beneficial effect of adopting the above further scheme is that by rotating the transmission rod, the gear is driven to rotate. Since the gear is engaged with the rack and the slide is slidably connected with the slide groove, the slide groove can be driven to move laterally on the opposite side of the slide groove, thereby aligning the autofocus lens with the sample placed on the top of the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a left view of the structure of the utility model;

[0020] Figure 3 It is an enlarged schematic diagram of the structure at a of the utility model;

[0021] Figure 4 This is an enlarged schematic diagram of the structure at b of the utility model;

[0022] Figure 5 It is an enlarged schematic diagram of the structure at c of the utility model.

[0023] In the figure: 1. base; 2. camera; 201. lens mount; 3. autofocus lens; 4. lead screw; 5. movable plate; 6. lifting assembly; 601. internal threaded sleeve; 602. worm gear; 7. driving assembly; 701. double-output shaft stepping motor; 702. worm gear; 8. slideway; 9. slide plate; 10. centering assembly; 101. rack; 102. transmission rod; 103. gear; 11. fixture assembly; 111. assembly block; 112. pull rod; 113. clamping block; 114. spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the embodiment, Figure 1-5 A detection device for an autofocus lens is provided. The utility model comprises a base 1, a camera 2 and an autofocus lens 3. The camera 2 comprises a lens mount 201 adapted to the autofocus lens 3. A screw rod 4 symmetrically distributed on the top of the base 1 is fixedly connected. The outer side of the screw rod 4 is sleeved with a same movable plate 5. The interior of the movable plate 5 is provided with lifting assemblies 6 symmetrically distributed on the left and right and respectively located on the outer sides of the screw rod 4. The lifting assemblies 6 are all threadedly connected to the screw rod 4 and rotatably connected to the movable plate 5. A driving assembly 7 meshing with the lifting assemblies 6 is provided in the movable plate 5. A slide groove 8 symmetrically distributed on the front and back is fixedly connected to the bottom of the movable plate 5. The opposite side of the slide groove 8 is slidably connected with a same slide plate 9. A centering assembly 10 extending to the front side of the movable plate 5 is provided on the top of the slide plate 9. A clamp assembly 11 symmetrically distributed on the left and right and adapted to the camera 2 is provided on the bottom of the slide plate 9.

[0026] The lifting assembly 6 includes an internal threaded sleeve 601 and a worm gear 602. The internal threaded sleeves 601 symmetrically distributed and respectively threadedly connected to the screw rod 4 are rotatably connected inside the movable plate 5. The outer sides of the internal threaded sleeves 601 are fixedly connected to the worm gear 602 located inside the movable plate 5.

[0027] The driving assembly 7 includes a double-shaft stepper motor 701 and a worm 702. The double-shaft stepper motor 701 is disposed inside the movable plate 5. The output ends of the double-shaft stepper motor 701 are fixedly connected to the worm 702 meshing with the corresponding worm wheel 602.

[0028] The double-output shaft stepper motor 701 is rotated through the computer terminal, and the double-output shaft stepper motor 701 then drives the worm 702 to rotate synchronously. Since the worm 702 is meshed with the worm wheel 602, the internal thread sleeve 601 is driven to rotate synchronously. The force generated by the rotation of the thread can drive the movable plate 5 to move up and down on the outside of the screw rod 4.

[0029] The clamp assembly 11 includes an assembly block 111, a pull rod 112, a clamp block 113 and a spring 114. The bottom of the slide plate 9 is fixedly connected with the assembly blocks 111 which are symmetrically distributed on the left and right sides. The opposite sides of the assembly blocks 111 are slidably connected with the pull rods 112 extending to the opposite sides thereof. The opposite sides of the pull rods 112 are fixedly connected with the clamp blocks 113 adapted to the camera 2. The springs 114 located outside the pull rods 112 are arranged between the clamp blocks 113 and the adjacent assembly blocks 111.

[0030] Pull the pull rod 112 to the opposite side thereof to make the pull rod 112 slide to the opposite side thereof, and then make the spring 114 elastically deform, so that the camera 2 is located between the clamping blocks 113. Release the pull rod 112, and the spring 114 restores the elastic deformation force to clamp the camera 2 between the clamping blocks 113. Then, the camera is electrically connected to the computer terminal, and the auto-focus lens 3 to be tested is installed below the lens mount 201 of the camera 2, and the installation of the camera 2 is completed.

[0031] The centering assembly 10 includes a rack 101, a transmission rod 102 and a gear 103. The top of the slide plate 9 is fixedly connected with a rack 101 that is symmetrically distributed front and back. The front side of the rear slide groove 8 is rotatably connected with a transmission rod 102 that extends to the front side of the movable plate 5. The outer side of the transmission rod 102 is fixedly connected with a gear 103 that is symmetrically distributed front and back and meshes with the corresponding rack 101.

[0032] By rotating the transmission rod 102, the gear 103 is driven to rotate. Since the gear 103 is meshed with the rack 101, and the slide plate 9 is slidably connected with the slide groove 8, the slide plate 9 can be driven to move laterally on the opposite side of the slide groove 8, so that the autofocus lens 3 is aligned with the sample placed on the top of the base 1.

[0033] Working principle:

[0034] Step 1: Place the sample on the top of the base 1, pull the pull rod 112 to the opposite side thereof, make the pull rod 112 slide to the opposite side thereof, and then make the spring 114 elastically deform, so that the camera 2 is located between the clamping blocks 113, release the pull rod 112, and the spring 114 restores the elastic deformation force to clamp the camera 2 between the clamping blocks 113, electrically connect the camera to the computer terminal, and install the autofocus lens 3 to be tested under the lens mount 201 of the camera 2, and the installation of the camera 2 is completed;

[0035] Step 2: By rotating the transmission rod 102, the gear 103 is driven to rotate. Since the gear 103 is meshed with the rack 101, and the slide plate 9 is slidably connected with the slide groove 8, the slide plate 9 can be driven to move laterally on the opposite side of the slide groove 8, so that the autofocus lens 3 is aligned with the sample placed on the top of the base 1;

[0036] Step 3: The double-output shaft stepper motor 701 is rotated through the computer terminal, and the double-output shaft stepper motor 701 then drives the worm 702 to rotate synchronously. Since the worm 702 is meshed with the worm wheel 602, it drives the internal threaded sleeve 601 to rotate synchronously. The force generated by the rotation of the thread can drive the movable plate 5 to move up and down on the outside of the screw rod 4, and then drive the camera 2 to move up and down. During the movement, the computer terminal enables the camera 2 to shoot the sample at a specific height. The computer terminal compares the shot picture with the normal picture taken at the same height, so as to determine whether the autofocus lens 3 is qualified. The detection device for the autofocus lens has the advantages of simple structure, affordable price, and simple operation.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detection device for an auto-focus lens, comprising a base (1), a camera (2) and an auto-focus lens (3), wherein the camera (2) comprises a lens mount (201) adapted to the auto-focus lens (3), and characterized in that: The top of the base (1) is fixedly connected to a lead screw (4) which is symmetrically distributed on the left and right sides. The outer side of the lead screw (4) is sleeved with a same movable plate (5). The inside of the movable plate (5) is provided with lifting assemblies (6) which are symmetrically distributed on the left and right sides and are respectively located on the outer sides of the lead screw (4). The lifting assemblies (6) are all threadedly connected to the lead screw (4) and are rotatably connected to the movable plate (5). The movable plate (5) is provided with a driving assembly (7) which is meshed with the lifting assemblies (6). The bottom of the movable plate (5) is fixedly connected to a slide groove (8) which is symmetrically distributed in the front and back sides. The opposite side of the slide groove (8) is slidably connected with a same slide plate (9). The top of the slide plate (9) is provided with a centering assembly (10) which extends to the front side of the movable plate (5). The bottom of the slide plate (9) is provided with a clamp assembly (11) which is symmetrically distributed in the left and right sides and is adapted to the camera (2).

2. The detection device for an auto-focus lens according to claim 1, characterized in that: The lifting assembly (6) comprises an internal threaded sleeve (601) and a worm gear (602); the internal portion of the movable plate (5) is rotatably connected to the internal threaded sleeves (601) which are symmetrically distributed on the left and right and are respectively threadedly connected to the screw rod (4); the outer sides of the internal threaded sleeves (601) are fixedly connected to the worm gear (602) located in the movable plate (5).

3. The detection device for an auto-focus lens according to claim 2, characterized in that: The driving assembly (7) comprises a double-output shaft stepping motor (701) and a worm (702); the double-output shaft stepping motor (701) is arranged inside the movable plate (5); the output ends of the double-output shaft stepping motor (701) are fixedly connected to the worm (702) meshing with the corresponding worm wheel (602).

4. The detection device for an auto-focus lens according to claim 1, characterized in that: The centering assembly (10) comprises a rack (101), a transmission rod (102) and a gear (103); the top of the slide plate (9) is fixedly connected to the rack (101) which is symmetrically distributed in the front and rear directions; the front side of the rear slide groove (8) is rotatably connected to the transmission rod (102) which extends to the front side of the movable plate (5); the outer side of the transmission rod (102) is fixedly connected to the gear (103) which is symmetrically distributed in the front and rear directions and meshes with the corresponding rack (101).

5. The detection device for an auto-focus lens according to claim 1, characterized in that: The clamp assembly (11) comprises an assembly block (111), a pull rod (112), a clamp block (113) and a spring (114); the bottom of the slide plate (9) is fixedly connected to the assembly block (111) which is symmetrically distributed on the left and right; the opposite side of the assembly block (111) is slidably connected to the pull rod (112) extending to the opposite side thereof; the opposite side of the pull rod (112) is fixedly connected to the clamp block (113) adapted to the camera (2); and a spring (114) located on the outside of the pull rod (112) is provided between the clamp block (113) and the adjacent assembly block (111).

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