An interface structure for adjusting the axial, radial, phase, and tilt positions of a camera.

Abstract

This utility model discloses an interface structure for adjusting the axial, radial, phase, and tilt positions of a camera, comprising: a lens connector for connecting to the rear of a lens, at least one axial adjustment member, and a camera connector for connecting to a camera; at least one axial adjustment member is connected between the lens connector and the camera connector, both of which are hollow internally, with the camera connector partially installed inside the lens connector. The lens connector has a first adjustment member for adjusting the camera's phase, a second adjustment member for adjusting the camera's tilt, and a third adjustment member for adjusting the camera's radial position. This utility model structure can connect the rear of a lens to a camera and can achieve fine-tuning and locking of the camera's axial, radial, tilt, and phase positions.

Description

Technical Field

[0001] This utility model relates to the field of optical system technology, specifically to an interface structure that can adjust the axial, radial, phase, and tilt positions of a camera. Background Technology

[0002] Currently, for industrial lenses and camera interfaces, a reliable connection between the lens and the camera is essential. Most interfaces on the market are fixed or only allow adjustment of the back focus. Once the camera is screwed onto the lens mount, its position cannot be adjusted, leading to inconsistent image quality. Furthermore, due to manufacturing and installation errors in the lens, image quality may be even worse, and the object being photographed may not be centered on the image plane. In such cases, it is necessary to adjust the camera's axial, radial, phase, or tilt position based on the shooting results to achieve optimal image quality. Fixed interfaces cannot achieve the desired purpose, or some interfaces can adjust the back focus but cannot adjust the position of the object on the image plane. For example, patent CN108761709A provides a lens mount fastening device that facilitates focusing, but it cannot simultaneously adjust the camera's axial, radial, phase, and tilt positions.

[0003] To address this, an interface structure is provided that allows for adjustment of the camera's axial, radial, phase, and tilt positions, thereby adjusting the camera's back focus, phase, and distortion. Utility Model Content

[0004] The purpose of this invention is to provide an interface structure that can adjust the axial, radial, phase, and tilt positions of a camera to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an interface structure for adjusting the axial, radial, phase, and tilt positions of a camera, comprising: a lens connector for connecting to the tail of a lens, at least one axial adjustment member, and a camera connector for connecting to a camera; at least one axial adjustment member is connected between the lens connector and the camera connector, both the lens connector and the camera connector are hollow inside, the camera connector is partially installed inside the lens connector, the lens connector is provided with a first adjustment member capable of adjusting the camera phase, the lens connector is provided with a second adjustment member capable of adjusting the camera tilt, and the lens connector is provided with a third adjustment member capable of adjusting the camera radial position.

[0006] Furthermore, the first adjusting member also includes a first screw, the lens connector is provided with a plurality of waist-shaped holes evenly spaced, the axial adjusting member is provided with a plurality of first mounting holes evenly spaced, and the camera connector is provided with second mounting holes whose positions and numbers correspond to the first mounting holes. The first screw passes through the waist-shaped holes, the first mounting holes, and the second mounting holes in sequence to connect the lens connector and the camera connector.

[0007] Furthermore, the lens connector is provided with a plurality of third mounting holes evenly spaced apart, the second adjusting member includes a second screw, the second screw is installed in the third mounting hole, the axial adjusting member is hollow inside and has an inner diameter hole, the second screw passes through the inner diameter hole and abuts against the camera connector.

[0008] Furthermore, the lens connector is provided with a plurality of fourth mounting holes evenly spaced apart, the third adjusting component includes a third screw, the third screw is installed in the fourth mounting hole, and the third screw abuts against the surface of the camera connector.

[0009] Furthermore, the outer circumferential surface of the camera connector is provided with an inclined surface, which gradually tilts towards the direction of the external camera. The third screw is installed in the fourth mounting hole and can abut against the inclined surface.

[0010] Furthermore, the camera connector has an external thread on its rear outer wall, through which an external camera is connected to the camera connector.

[0011] Furthermore, the diameter of the first receiving hole at the front end of the lens connector is larger than the diameter of the second receiving hole to form a positioning surface.

[0012] Furthermore, the outer circumferential wall of the lens connector is provided with a plurality of fifth mounting holes that are evenly spaced and communicate with the first receiving hole, and screws are installed in the fifth mounting holes to install and fix the external lens.

[0013] Furthermore, there are 8 mounting holes in both the first and second mounting holes.

[0014] Furthermore, the number of fourth mounting holes is four.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model structure can connect the lens tail and the camera, and can achieve fine adjustment of the camera's axis, radial direction, tilt, phase and lock. Attached Figure Description

[0017] Figure 1 This is an exploded view of an embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional schematic diagram of an embodiment of the present invention. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-2 This utility model provides a technical solution: an interface structure for adjusting the axial, radial, phase, and tilt positions of a camera, comprising: a lens connector 1 for connecting to the rear of a lens, at least one axial adjustment member 2, and a camera connector 3 for connecting to a camera; at least one axial adjustment member 2 is connected between the lens connector 1 and the camera connector 3, both the lens connector 1 and the camera connector 3 are hollow inside, the camera connector 3 is partially installed inside the lens connector 1, the lens connector 1 is provided with a first adjustment member for adjusting the camera phase, the lens connector 1 is provided with a second adjustment member for adjusting the camera tilt, and the lens connector 1 is provided with a third adjustment member for adjusting the camera radial position.

[0021] This utility model structure can connect the lens tail and the camera, and can fine-tune the axial, radial, phase and tilt positions of the camera and lock it in place.

[0022] The lens connector 1 is hollow inside. From left to right, the lens connector 1 has a first receiving hole, a second receiving hole, and a third receiving hole. The outer diameter of the camera connector 3 is smaller than the inner diameter of the third receiving hole. The diameter of the third receiving hole is larger than the diameter of the first receiving hole. The diameter of the first receiving hole is larger than the diameter of the second receiving hole. The front end of the camera connector 3 is installed and connected to the third receiving hole. The rear end of the camera connector 3 is connected to the camera.

[0023] Furthermore, to connect the lens connector 1, the axial adjustment component 2, and the camera connector 3 and enable phase adjustment of the camera, the first adjustment component also includes a first screw 4. The lens connector 1 has a plurality of evenly spaced oblong holes 11, the axial adjustment component 2 has a plurality of evenly spaced first mounting holes 21, and the camera connector 3 has second mounting holes 31 whose positions and numbers correspond to the first mounting holes 21. The first screw 4 passes sequentially through the oblong holes 11, the first mounting holes 21, and the second mounting holes 31 to connect the lens connector 1 and the camera connector 3. The oblong holes 11 have a certain curvature, allowing the lens connector 1 to rotate relative to the camera connector 3 for position adjustment. The lens connector 1 rotates along the axial direction, thus adjusting the phase. Simultaneously, the oblong holes 11 facilitate the installation and connection of the rear first mounting holes 21 and second mounting holes 31. There are four waist-shaped holes 11, and there are eight first mounting holes 21 and eight second mounting holes 31. The axial adjustment component 2 is provided with several first mounting holes 21. When the lens connector 1 is connected to the camera connector 3 by passing the first screw 4 through the waist-shaped hole 11 and then through the round hole first mounting hole 21, the axial adjustment of the camera can be performed by increasing or decreasing the number of intermediate axial adjustment components 2, that is, adjusting the back focus.

[0024] Phase adjustment: The camera connector 3 can rotate along the waist-shaped hole 11, thereby causing the external camera connected to the camera connector 3 to rotate.

[0025] Furthermore, there are eight first mounting holes 21 and eight second mounting holes 31, and four waist-shaped holes 11, which allow the camera connector 3 to rotate at any angle.

[0026] Furthermore, to allow the camera to tilt slightly and thus improve image quality, the lens connector 1 has multiple evenly spaced third mounting holes 12. The second adjusting member includes second screws 5, which are installed within the third mounting holes 12. The axial adjusting member 2 has a hollow interior forming an inner diameter hole 22, through which the second screws 5 pass and abut against the camera connector 3. The multiple second screws 5 pass through the inner diameter hole 22 on the axial adjusting member 2 and abut against the camera connector 3 without contacting the axial adjusting member 2. The pressure applied to the camera connector 3 by different second screws 5 can be adjusted, thereby adjusting the camera connector 3. Different pressures applied by different second screws 5 cause the camera connector 3 to tilt, thus tilting the camera, which adjusts distortion. Tilting adjustment: Different forces applied to the second screws 5 cause the camera connector 3 to tilt slightly. There are eight third mounting holes 12 and eight second screws 5.

[0027] Furthermore, to enable radial adjustment of the camera, the lens connector 1 is provided with a plurality of fourth mounting holes 13 evenly spaced. The third adjusting component includes a third screw 6, which is installed in the fourth mounting hole 13 and abuts against the surface of the camera connector 3. The third screw 6 is then screwed into the fourth mounting hole 13 and pressed onto the surface of the camera connector 3. The surface of the camera connector 3 is the outer circumferential surface of the camera connector. By loosening one side of the third screw 6 and then tightening the other side of the third screw 6, radial adjustment of the camera can be achieved, that is, centering the camera.

[0028] Furthermore, the lens connector 1 is provided with a fourth mounting hole 13 with its opening facing the axis. The outer circumferential surface of the camera connector 3 is provided with an inclined surface 32, which gradually tilts towards the external camera. The third screw 6 is installed in the fourth mounting hole 13 and can abut against the inclined surface 32. The inclined surface 32 is formed by the camera connector 3 facing away from the lens connector 1, with its diameter gradually decreasing. The inclined surface 32 can convert part of the radial pressure of the third screw 6 into axial pressure, which can realize the radial adjustment of the camera while making the connection between the lens connector 1 and the camera connector 3 more secure.

[0029] Furthermore, the axial adjustment component 2 is a shim 2, which has a plurality of first mounting holes 21 evenly spaced on it, and an inner diameter hole 22 is formed inside the shim 2. The shim 2 is made of 304 stainless steel, while the lens connector 1 and the camera connector 3 are made of 6061 aluminum alloy.

[0030] The camera's axial adjustment, i.e., the back focus adjustment, can be achieved by increasing or decreasing the number of intermediate shims 2. The shims 2 used to adjust the back focus solve the problem that the camera's back focus, phase, and distortion (tilt) cannot be finely adjusted simultaneously. They are used to connect the lens tail and the camera, and can achieve fine adjustment of the camera's axial, radial, tilt, and phase, and are locked by the first screw 4, the second screw 5, and the third screw 6.

[0031] Furthermore, to enable the camera connector 3 to connect to the camera, an external thread 33 is provided on the outer wall of the rear end of the camera connector 3. The external camera connects to the camera connector 3 through the external thread 33, and the camera connector 3 is used to connect and fix to the camera. The diameter of the rear end of the camera connector 3 is smaller than the diameter of the entire camera connector 3 or the inclined surface 32. The tail of the camera connector 3 is provided with an external thread for connecting to the camera, and the outer diameter near the thread side is smaller than the overall diameter of the camera connector 3, forming a frustum.

[0032] Furthermore, the diameter of the first receiving hole at the front end of the lens connector 1 is larger than the diameter of the second receiving hole to form a positioning surface 14, through which the lens connector 1 positions the external lens.

[0033] Furthermore, the outer circumferential wall of the lens connector 1 is provided with a plurality of fifth mounting holes 15 at even intervals corresponding to the positions of the first receiving hole, which are connected to the first receiving hole. Screws are placed in the fifth mounting holes 15 for mounting and fixing the external lens. There are 3 fifth mounting holes 15.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An interface structure for adjusting axial, radial, phase, and tilt positions of a camera, characterized by, It includes: a lens connector (1) for connecting to the rear of a lens, at least one axial adjustment member (2), and a camera connector (3) for connecting to a camera; at least one axial adjustment member (2) is connected between the lens connector (1) and the camera connector (3), both the lens connector (1) and the camera connector (3) are hollow inside, the camera connector (3) is partially installed inside the lens connector (1), the lens connector (1) is provided with a first adjustment member that can adjust the camera phase, the lens connector (1) is provided with a second adjustment member that can adjust the camera tilt, and the lens connector (1) is provided with a third adjustment member that can adjust the radial position of the camera.

2. The adjustable camera axial, radial, phase, and tilt position interface structure of claim 1, wherein: The first adjusting component also includes a first screw (4), the lens connector (1) is provided with a plurality of waist-shaped holes (11) evenly spaced, the axial adjusting component (2) is provided with a plurality of first mounting holes (21) evenly spaced, and the camera connector (3) is provided with second mounting holes (31) whose positions and numbers correspond to the first mounting holes (21). The first screw (4) passes through the waist-shaped holes (11), the first mounting holes (21), and the second mounting holes (31) in sequence to connect the lens connector (1) and the camera connector (3).

3. The interface structure for adjustable camera axial, radial, phase and tilt position according to claim 1 or 2, characterized in that: The lens connector (1) is provided with multiple third mounting holes (12) evenly spaced. The second adjustment component includes a second screw (5). The second screw (5) is installed in the third mounting hole (12). The axial adjustment component (2) is hollow inside and has an inner diameter hole (22). The second screw (5) passes through the inner diameter hole (22) and abuts against the camera connector (3).

4. The adjustable camera axial, radial, phase, and tilt position interface structure of claim 3, wherein: The lens connector (1) is provided with multiple fourth mounting holes (13) evenly spaced. The third adjustment component includes a third screw (6). The third screw (6) is installed in the fourth mounting hole (13) and the third screw (6) abuts against the surface of the camera connector (3).

5. The adjustable camera axial, radial, phase, and tilt position interface structure of claim 4, wherein: The outer circumferential surface of the camera connector (3) is provided with an inclined surface (32), which gradually tilts towards the direction of the external camera. The third screw (6) is installed in the fourth mounting hole (13) and can abut against the inclined surface (32).

6. The interface structure for adjustable camera axial, radial, phase and tilt position according to claim 3, characterized in that: The camera connector (3) has an external thread (33) on its rear outer wall, and the external camera is connected to the camera connector (3) through the external thread (33).

7. The interface structure for adjustable camera axial, radial, phase and tilt position according to claim 3, characterized in that: The diameter of the first receiving hole at the front end of the lens connector (1) is larger than the diameter of the second receiving hole to form a positioning surface (14).

8. The adjustable camera axial, radial, phase, and tilt position interface structure of claim 7, wherein: The lens connector (1) has a plurality of fifth mounting holes (15) that are evenly spaced on the outer circumferential wall corresponding to the first receiving hole. The fifth mounting holes (15) are fitted with screws to install and fix the external lens.

9. The adjustable camera axial, radial, phase, and tilt position interface structure of claim 2, wherein: The number of first mounting holes (21) and second mounting holes (31) is 8 each.

10. The interface structure for adjustable camera axial, radial, phase and tilt position according to claim 3, characterized in that: The number of fourth mounting holes (13) is 4.

Images