Zoom camera optical axis center adjusting device

Abstract

The utility model relates to the technical field of optical imaging, in particular to a zoom camera optical axis center adjusting device which comprises a bottom plate, two symmetrically-distributed fixing plates are fixedly installed at the left end of the top of the bottom plate, and supporting plates are fixedly installed at the lower ends of the inner sides of the two fixing plates. The inner surfaces of the upper ends of the two fixing plates are each provided with three through holes. According to the utility model, through cooperation of structures, the adjusting device has the advantages of high adjusting efficiency and high precision, and solves the problem that the center of the optical axis of the zoom camera is adjusted by directly installing the camera sensor plate on the lens of the zoom camera; therefore, the problems that an object imaged at the central position of a sensor is not in the central position of an image of a camera, the center of an optical axis can only be found by manually moving a sensor plate, the debugging time is wasted, and the adjustment is not accurate enough are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical imaging, in particular to an optical axis center adjusting device for a zoom camera. Background Technique

[0002] The imaging of an optical camera is mainly composed of a sensor and an optical lens. The optical axis centers of the sensor and the optical lens need to be kept consistent. In this way, the target imaged at the center position of the sensor can be located at the center of the image during the zoom process of the camera. Otherwise, during the zoom process of the camera, the target object imaged at the center position of the sensor will deviate from the center position of the image. Therefore, the installation accuracy requirement for installing the sensor on the optical lens is very high.

[0003] Currently, the adjustment of the optical axis center of a zoom camera is to directly install the camera sensor board on the zoom camera lens. In this way, it is possible that the object imaged at the center position of the sensor is not at the center position of the camera image. Furthermore, the optical axis center can only be found by manually moving the sensor board. The result of this is a waste of debugging time and the adjustment is not precise enough. For this reason, we propose an optical axis center adjusting device for a zoom camera. Content of the Utility Model

[0004] The purpose of the utility model is to provide an optical axis center adjusting device for a zoom camera, which has the advantages of high efficiency and high precision in adjustment, and solves the problem that the adjustment of the optical axis center of a zoom camera is to directly install the camera sensor board on the zoom camera lens. In this way, it is possible that the object imaged at the center position of the sensor is not at the center position of the camera image. Furthermore, the optical axis center can only be found by manually moving the sensor board. The result of this is a waste of debugging time and the adjustment is not precise enough.

[0005] To achieve the above object, the utility model provides the following technical solution: A zoom camera optical axis center adjusting device, including a bottom plate. At the left end of the top of the bottom plate, two symmetrically distributed fixing plates are fixedly installed. At the lower end inside the two fixing plates, a support plate is fixedly installed. On the inner surfaces of the upper ends of the two fixing plates, three through holes are respectively opened. In the through holes at the left and right ends of the fixing plate located at the front end of the top of the bottom plate, fixing bolts are slidably connected. Between the front end of the outer surface of the fixing bolt and the fixing plate, a first spring is fixedly connected. The rear end of the fixing bolt is threadedly connected with a movable partition. In the through hole in the middle of the fixing plate located at the front end of the top of the bottom plate, a first knurled hand-tightening screw is threadedly connected, and the rear side of the first knurled hand-tightening screw abuts against the front surface of the movable partition. At the right end of the top of the bottom plate, an XYZ-axis displacement platform is fixedly installed. On the left side of the XYZ-axis displacement platform, a fixture connecting plate is fixedly installed. From back to front on the left side of the fixture connecting plate, a fixed clamping plate and a positioning plate are fixedly installed in sequence. At the upper and lower ends between the fixed clamping plate and the positioning plate, guide shafts are fixedly connected. On the outer surface of the guide shafts, a movable clamping plate is slidably connected. Between the rear side of the movable clamping plate and the front surface of the fixed clamping plate, a second spring sleeved on the rear end of the outer surface of the guide shaft is fixedly connected. At the middle of the front surface of the positioning plate, a second knurled hand-tightening bolt is threadedly connected, and the rear side of the second knurled hand-tightening bolt abuts against the front surface of the movable clamping plate.

[0006] Preferably, a zoom camera main body is arranged on the top of the support plate.

[0007] Preferably, a sensor board is arranged between the movable clamping plate and the fixed clamping plate.

[0008] Preferably, clamping claws are arranged at the upper and lower ends on the left side of the fixed clamping plate and at the upper and lower ends on the left side of the movable clamping plate.

[0009] Preferably, a visual observation window and a scale bar are arranged on the top of the movable partition from front to back. An activity cavity is opened on the inner surface of the upper end of the movable partition. A sealing cavity is opened at the rear side of the movable partition. A gas guiding channel is arranged between the left side of the sealing cavity and the left end of the activity cavity.

[0010] Preferably, at the left and right ends on one side of the sealing cavity, third springs are fixedly connected. The end of the third spring far away from the fixing bolt is fixedly connected with a movable rubber plug moving in the inner cavity of the sealing cavity. The rear side of the movable rubber plug is fixedly connected with a fitting plate moving in the inner cavity of the sealing cavity.

[0011] Preferably, a movable piston sliding in the activity cavity is arranged at the left end of the inner cavity of the activity cavity.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. Through the setting of the support plate, the present utility model can support the placed zoom camera body. Then, by rotating the first knurled hand-tightening screw, the movable partition can be pushed. The setting of the fixing bolt ensures the stable movement of the movable partition towards the zoom camera body. And with the cooperation of the fixing plate, the zoom camera body can be clamped. The movement of the movable partition can compress the first spring through the fixing bolt. Through the setting of the fixed clamping plate and the movable clamping plate, after rotating the second knurled hand-tightening bolt, the movable clamping plate can be pushed to compress the second spring on the outer surface of the guiding shaft. Along with the movement of the movable clamping plate and with the cooperation of the fixed clamping plate, the sensor board can be clamped. Through the setting of the XYZ-axis displacement platform, the fixture connecting plate can be driven to displace in the X direction, Y direction, and Z direction, so that the clamped and fixed sensor board can be completely coincident with the lens interface of the fixed zoom camera body, endowing the device with the capabilities of high-efficiency adjustment and high precision.

[0014] 2. Through the setting of the fitting plate, when the movable partition approaches the zoom camera body to clamp it, the continuous thrust generated by the first knurled hand-tightening screw can make the fitting plate drive the movable rubber plug to compress the third spring in the sealing cavity. Then, as the space of the sealing cavity is compressed, the gas inside it can enter the movable cavity through the air guide channel and push the movable piston to slide in the movable cavity. And with the assistance of the visual observation window and the scale bar, the clamping force of the fitting plate along with the movable partition on the zoom camera body can be understood, avoiding the situation of damage caused by excessive clamping force while ensuring stable clamping. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the device of the present utility model without clamping the zoom camera body;

[0016] Figure 2 It is a schematic structural diagram of the device of the present utility model clamping the zoom camera body;

[0017] Figure 3 It is a schematic cross-sectional structure diagram of the movable partition of the present utility model;

[0018] Figure 4 For the present utility model Figure 3 It is a cross-sectional structure diagram from another perspective.

[0019] In the figure: 1, bottom plate; 2, fixed plate; 3, movable partition; 4, support plate; 5, XYZ-axis displacement platform; 6, first knurled hand-tightening screw; 7, fixing bolt; 8, second knurled hand-tightening bolt; 9, movable clamping plate; 10, guide shaft; 11, second spring; 12, fixture connecting plate; 13, zoom camera body; 14, sensor board; 15, first spring; 16, fixed clamping plate; 17, positioning plate; 18, through hole; 19, third spring; 20, visual observation window; 21, sealed cavity; 22, movable cavity; 23, movable piston; 24, air guide channel; 25, movable rubber plug; 26, fitting plate; 27, scale bar. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0023] The base plate 1, fixed plate 2, movable partition 3, support plate 4, XYZ-axis displacement platform 5, first knurled hand-tightening screw 6, fixing bolt 7, second knurled hand-tightening bolt 8, movable clamping plate 9, guide shaft 10, second spring 11, fixture connecting plate 12, zoom camera body 13, sensor board 14, first spring 15, fixed clamping plate 16, positioning plate 17, through hole 18, third spring 19, visual observation window 20, sealing cavity 21, movable cavity 22, movable piston 23, air guide channel 24, movable rubber plug 25, fitting plate 26 and scale bar 27 components of the present application are all common standard components or components known to those skilled in the art, and their structures and principles can all be learned by those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0024] Embodiment 1

[0025] Please refer to Figures 1-4 As shown in the figure, the present utility model provides a technical solution: a zoom camera optical axis center adjustment device, including a base plate 1. At the left end of the top of the base plate 1, two symmetrically distributed fixed plates 2 are fixedly installed. At the lower end of the inner sides of the two fixed plates 2, a support plate 4 is fixedly installed. On the top of the support plate 4, a zoom camera body 13 is arranged. On the inner surfaces of the upper ends of the two fixed plates 2, three through holes 18 are respectively opened. For the fixed plate 2 located at the front end of the top of the base plate 1, fixing bolts 7 are slidably connected inside the through holes 18 at its left and right ends. Between the front end of the outer surface of the fixing bolt 7 and the fixed plate 2, a first spring 15 is fixedly connected. The rear end of the fixing bolt 7 is threadedly connected to a movable partition 3. For the fixed plate 2 located at the front end of the top of the base plate 1, a first knurled hand-tightening screw 6 is threadedly connected inside the through hole 18 at its middle end, and the rear side of the first knurled hand-tightening screw 6 abuts against the front surface of the movable partition 3. At the right end of the top of the base plate 1, an XYZ-axis displacement platform 5 is fixedly installed. On the left side of the XYZ-axis displacement platform 5, a fixture connecting plate 12 is fixedly installed. From back to front on the left side of the fixture connecting plate 12, a fixed clamping plate 16 and a positioning plate 17 are fixedly installed in sequence. At the upper and lower ends between the fixed clamping plate 16 and the positioning plate 17, guide shafts 10 are fixedly connected. The outer surface of the guide shaft 10 is slidably connected to a movable clamping plate 9. A sensor board 14 is arranged between the movable clamping plate 9 and the fixed clamping plate 16. Claw jaws are arranged at the upper and lower ends on the left side of the fixed clamping plate 16 and the upper and lower ends on the left side of the movable clamping plate 9. Between the rear side of the movable clamping plate 9 and the front surface of the fixed clamping plate 16, a second spring 11 sleeved on the rear end of the outer surface of the guide shaft 10 is fixedly connected. At the middle end of the front surface of the positioning plate 17, a second knurled hand-tightening bolt 8 is threadedly connected, and the rear side of the second knurled hand-tightening bolt 8 abuts against the front surface of the movable clamping plate 9.

[0026] Technical solution: Through the arrangement of the support plate 4, the zoom camera body 13 placed can be supported. Then, rotate the first knurled hand-tightening screw 6 to push the movable partition 3. The arrangement of the fixing bolt 7 ensures the stable movement of the movable partition 3 towards the zoom camera body 13. And with the cooperation of the fixing plate 2, the zoom camera body 13 can be clamped. The movement of the movable partition 3 can compress the first spring 15 through the fixing bolt 7. Through the arrangement of the fixed clamping plate 16 and the movable clamping plate 9, after rotating the second knurled hand-tightening bolt 8, the movable clamping plate 9 can be pushed to compress the second spring 11 on the outer surface of the guide shaft 10. With the movement of the movable clamping plate 9 and the cooperation of the fixed clamping plate 16, the sensor board 14 can be clamped. Through the arrangement of the XYZ-axis displacement platform 5, the fixture connecting plate 12 can be driven to displace in the X direction, Y direction, and Z direction, so that the clamped and fixed sensor board 14 can be completely coincident with the lens interface of the fixed zoom camera body 13. Then, the sensor board 14 can be fixed on the lens of the zoom camera body 13.

[0027] Embodiment 2

[0028] On the basis of Embodiment 1, as shown in the present utility model Figures 1-4 shown, a visual observation window 20 and a scale bar 27 are sequentially arranged on the top of the movable partition 3 from front to back. An activity cavity 22 is formed on the inner surface of the upper end of the movable partition 3. A sealing cavity 21 is formed at the rear side of the movable partition 3. A gas guide channel 24 is arranged between the left side of the sealing cavity 21 and the left end of the activity cavity 22. Third springs 19 are fixedly connected to both the left and right ends on one side of the sealing cavity 21. The end of the third spring 19 away from the fixing bolt 7 is fixedly connected to a movable rubber plug 25 that moves in the inner cavity of the sealing cavity 21. A fitting plate 26 that moves in the inner cavity of the sealing cavity 21 is fixedly connected to the rear side of the movable rubber plug 25. A movable piston 23 that slides in the activity cavity 22 is arranged at the left end of the inner cavity of the activity cavity 22.

[0029] Technical solution: Through the arrangement of the fitting plate 26, when the movable partition 3 approaches the zoom camera body 13 to clamp it, the continuous thrust generated by the first knurled hand-tightening screw 6 can cause the fitting plate 26 to drive the movable rubber plug 25 to compress the third spring 19 in the sealing cavity 21. Then, as the space of the sealing cavity 21 is compressed, the gas inside it can enter the activity cavity 22 through the gas guide channel 24 and push the movable piston 23 to slide in the activity cavity 22. And with the assistance of the visual observation window 20 and the scale bar 27, the clamping force of the fitting plate 26 accompanying the movable partition 3 on the zoom camera body 13 can be understood, which can avoid the situation of damage caused by excessive clamping force while ensuring stable clamping.

[0030] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0031] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present utility model or those features that are not relevant to the implementation of the present utility model).

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit the protection scope of the present utility model. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model may be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present utility model.

Claims

1. A zoom camera optical axis center adjustment device, comprising a bottom plate (1), characterized in that: At the left end of the top of the bottom plate (1), two symmetrically distributed fixing plates (2) are fixedly installed. At the lower end of the inner sides of the two fixing plates (2), a support plate (4) is fixedly installed. On the inner surfaces of the upper ends of the two fixing plates (2), three through holes (18) are respectively formed. In the through holes (18) at the left and right ends of the fixing plate (2) located at the front end of the top of the bottom plate (1), a fixing bolt (7) is slidably connected. Between the front end of the outer surface of the fixing bolt (7) and the fixing plate (2), a first spring (15) is fixedly connected. The rear end of the fixing bolt (7) is threadedly connected with a movable partition plate (3). In the through hole (18) in the middle of the fixing plate (2) located at the front end of the top of the bottom plate (1), a first knurled hand-tightening screw (6) is threadedly connected, and the rear side of the first knurled hand-tightening screw (6) abuts against the front surface of the movable partition plate (3). At the right end of the top of the bottom plate (1), an XYZ-axis displacement platform (5) is fixedly installed. On the left side of the XYZ-axis displacement platform (5), a fixture connecting plate (12) is fixedly installed. On the left side of the fixture connecting plate (12), a fixed clamping plate (16) and a positioning plate (17) are fixedly installed in sequence from back to front. At the upper and lower ends between the fixed clamping plate (16) and the positioning plate (17), a guide shaft (10) is fixedly connected. On the outer surface of the guide shaft (10), a movable clamping plate (9) is slidably connected. Between the rear side of the movable clamping plate (9) and the front surface of the fixed clamping plate (16), a second spring (11) sleeved on the rear end of the outer surface of the guide shaft (10) is fixedly connected. In the middle of the front surface of the positioning plate (17), a second knurled hand-tightening bolt (8) is threadedly connected, and the rear side of the second knurled hand-tightening bolt (8) abuts against the front surface of the movable clamping plate (9).

2. The optical axis center adjustment device of a zoom camera according to claim 1, characterized in that: On the top of the support plate (4), a zoom camera body (13) is provided.

3. The optical axis center adjustment device of a zoom camera according to claim 1, wherein: Between the movable clamping plate (9) and the fixed clamping plate (16), a sensor board (14) is provided.

4. The optical axis center adjustment device of a zoom camera according to claim 1, characterized in that: At the upper and lower ends on the left side of the fixed clamping plate (16) and at the upper and lower ends on the left side of the movable clamping plate (9), clamping jaws are provided.

5. The optical axis center adjustment device of a zoom camera according to claim 1, characterized in that: On the top of the movable partition plate (3), a visual observation window (20) and a scale bar (27) are arranged in sequence from front to back. In the inner surface of the upper end of the movable partition plate (3), a movable cavity (22) is formed. At the rear side of the movable partition plate (3), a sealing cavity (21) is formed. Between the left side of the sealing cavity (21) and the left end of the movable cavity (22), an air guide channel (24) is provided.

6. The optical axis center adjustment device of a zoom camera according to claim 5, characterized in that: At the left and right ends on one side of the sealing cavity (21), a third spring (19) is fixedly connected. The end of the third spring (19) away from the fixing bolt (7) is fixedly connected with a movable rubber plug (25) moving in the inner cavity of the sealing cavity (21). The rear side of the movable rubber plug (25) is fixedly connected with a fitting plate (26) moving in the inner cavity of the sealing cavity (21).

7. The optical axis center adjustment device of a zoom camera according to claim 6, characterized in that: At the left end of the inner cavity of the movable cavity (22), a movable piston (23) sliding in the movable cavity (22) is provided.

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