Optical calibration device

Abstract

The utility model relates to an optical calibration device, which comprises a support, a calibration plate assembly, a fixed base, a movable base and a universal joint assembly, and is characterized in that the support is arranged below the fixed base and is hinged with the fixed base so as to realize the opening and closing actions of the support; the universal joint assembly is mechanically connected with the fixed base through the movable base so as to realize rotation of the universal joint assembly in a horizontal plane, and the calibration plate assembly is mechanically connected with the universal joint assembly so as to realize rotation of the calibration plate assembly in a vertical plane; the optical calibration device provided by the embodiment of the utility model is reasonable in design and convenient to adjust, assemble and disassemble, various positions and postures of the optical calibration device are adjusted through the structural design of the movable base and the universal joint assembly, the stability is good, and various optical calibration requirements of users on image acquisition equipment can be met.

Description

Technical Field

[0001] This utility model relates to the field of image calibration equipment technology, and in particular to an optical calibration device. Background Technology

[0002] In the field of image calibration equipment technology, it is often necessary to evaluate and calibrate the imaging quality of images. Optical calibration devices are frequently used equipment. When calibrating images, the optical calibration device often needs to be adjusted according to different imaging devices. However, the calibration plates of existing optical calibration devices are inconvenient to adjust, not easy to disassemble and carry, and cannot meet the needs of various users. Therefore, a new type of optical calibration device is needed to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide an optical calibration device that is easy to adjust in position and orientation, can meet various user needs, and is easy to disassemble and carry.

[0004] To achieve the above objectives, this utility model provides an optical calibration device, comprising: a bracket, a calibration plate assembly, a fixed base, a movable base, and a universal joint assembly. The bracket is disposed below the fixed base and hinged to the fixed base to realize the opening and closing action of the bracket. The universal joint assembly is mechanically connected to the fixed base through the movable base to realize the rotation of the universal joint assembly in the horizontal plane. The calibration plate assembly is mechanically connected to the universal joint assembly to realize the rotation of the calibration plate assembly in the vertical plane.

[0005] Furthermore, the universal joint assembly includes: a universal joint and a joint sleeve, the movable base includes a bearing assembly, the universal joint is disposed in the joint sleeve and mechanically connected to the bearing assembly to realize the rotation of the universal joint in the horizontal plane.

[0006] Furthermore, the calibration plate assembly includes: a calibration plate and a connecting rod. The calibration plate is detachably mechanically connected to the universal joint via the connecting rod to enable the calibration plate to rotate in the vertical plane.

[0007] Furthermore, the connector sleeve is provided with a connector cavity and a slot, and the ball head portion of the universal joint is placed in the connector cavity; the universal joint is provided with a ball head connecting rod, and the ball head connecting rod is disposed in the slot to realize the position limit and attitude adjustment of the ball head connecting rod together with the calibration plate assembly.

[0008] Furthermore, the calibration plate assembly also includes a handle, through which the calibration plate is detachably mechanically connected to the connecting rod.

[0009] Furthermore, the bracket is provided with a locking block and a first locking knob. The height of the bracket is adjustable. The first locking knob is located on the locking block and is used to realize the height extension and locking of the bracket.

[0010] Furthermore, the bracket is also provided with a second locking knob, which is mechanically connected to the fixed base through the bracket to realize the adjustment of the opening angle and the locking of the position of the bracket.

[0011] Furthermore, the movable base also includes a protective cover, which is disposed on the outside of the movable base to protect the internal components of the movable base.

[0012] Compared with the prior art, the optical calibration device provided by this utility model embodiment is reasonably designed and easy to adjust and disassemble. Through the structural design of the movable base and universal joint assembly, the optical calibration device can be adjusted in various positions and postures, has good stability, and can meet the various optical calibration needs of users for image acquisition equipment. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.

[0014] Figure 1 A three-dimensional structural diagram of an optical calibration device provided for an embodiment of this utility model;

[0015] Figure 2 This is a three-dimensional structural schematic diagram of an optical calibration device provided in an embodiment of the present invention;

[0016] Figure 3 A three-dimensional structural diagram of an optical calibration device provided in an embodiment of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of another part of an optical calibration device provided in an embodiment of the present invention;

[0018] Figure 5 A three-dimensional structural diagram of the connector sleeve provided in an embodiment of this utility model.

[0019] In the picture:

[0020] 1. Bracket; 11. Locking block; 12. First locking knob; 13. Second locking knob; 2. Calibration plate assembly; 21. Calibration plate; 22. Fixed bracket; 23. Connecting rod; 3. Fixed base; 4. Movable base; 41. Protective cover; 42. Bearing assembly; 5. Universal joint assembly; 51. Universal joint; 511. Ball joint connecting rod; 52. Joint sleeve; 521. Joint cavity; 522. Slot. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] Unless otherwise defined, the technical or scientific terms used in this disclosure should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. It should be noted that terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear," 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 the present invention and for 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 the present invention. Furthermore, terms such as "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The optical calibration device provided by the present invention will now be described in detail with reference to the accompanying drawings.

[0025] Example

[0026] Figure 1 This diagram shows a three-dimensional structural schematic of an optical calibration device provided in an embodiment of the present invention; Figure 2This diagram shows another three-dimensional structural schematic of an optical calibration device provided in an embodiment of the present invention; Figure 3 This diagram shows a partial three-dimensional structural schematic of an optical calibration device provided in an embodiment of the present invention. Figure 4 This diagram shows another part of the three-dimensional structure of an optical calibration device provided in an embodiment of the present invention; Figure 5 A three-dimensional structural diagram of the connector sleeve provided in an embodiment of this utility model is shown. Figures 1 to 5 As shown, this utility model embodiment provides an optical calibration device, which is convenient for position and attitude adjustment, can adapt to various user needs, and is easy to disassemble and carry. The optical calibration device provided by this utility model embodiment includes: a bracket 1, a calibration plate assembly 2, a fixed base 3, a movable base 4, and a universal joint assembly 5. The bracket 1 is located below the fixed base 3 and is hinged to the fixed base 3 to realize the opening and closing action of the bracket 1. The bracket 1 in this utility model embodiment includes three bracket legs, which are arranged in a triangular distribution to ensure the structural stability of the bracket 1 after it is opened. The bracket legs can rotate around the hinge point on the fixed base 3 at a certain angle (generally not greater than 90 degrees) to facilitate the opening and closing of the bracket 1. The universal joint assembly 5 is mechanically connected to the fixed base 3 via the movable base 4 to enable rotation of the universal joint assembly 5 in the horizontal plane. This embodiment of the invention enables the universal joint assembly 5 to rotate within a 360-degree range. More specifically, the universal joint assembly 5 includes a universal joint 51 and a joint sleeve 52. The movable base 4 includes a bearing assembly 42. The universal joint 51 is disposed within the joint sleeve 52 and is mechanically connected to the bearing assembly 42 to enable rotation of the universal joint 51 in the horizontal plane. The universal joint 51 and the bearing assembly 42 are connected in a cooperative manner. The rotation of the bearing assembly 42 further drives the universal joint 51 and the joint sleeve 52 to rotate within a 360-degree range around the central axis of the movable base 4 in the horizontal plane, thereby enabling the optical calibration device to adapt to various position adjustment requirements. The calibration plate assembly 2 is mechanically connected to the universal joint assembly 5 to enable the calibration plate assembly 2 to rotate in the vertical plane. Specifically, the calibration plate assembly 2 includes a calibration plate 21 and a connecting rod 23. The calibration plate 21 is detachably mechanically connected to the universal joint 51 through the connecting rod 23 to enable the calibration plate 21 to rotate in the vertical plane. That is, the calibration plate 21 can rotate 360 ​​degrees around the central axis of the connecting rod 23 using the universal joint 51, thereby realizing the position rotation change of the calibration plate 21 to adapt to the image acquisition needs of various imaging devices.

[0027] In an optical calibration device provided in this embodiment of the present invention, the connector sleeve 52 is further provided with a connector cavity 521 and a slot 522. The ball head of the universal joint 51 is placed in the connector cavity 521, which enables the ball head of the universal joint 51 to rotate at any position. The universal joint 51 is provided with a ball head connecting rod 511, which is disposed in the slot 522 to realize the position limit and attitude adjustment of the ball head connecting rod 511 together with the calibration plate assembly 2. In this way, the ball head connecting rod 511 can realize the connecting rod 23 and further drive the calibration plate 21 to lift and fall, so that the connecting rod 23 together with the calibration plate 21 can switch between vertical and horizontal states, ensuring that the maximum lifting angle of the calibration plate 21 is not less than 90 degrees and can stay at any position within the 90-degree range.

[0028] In an optical calibration device provided in this embodiment of the present invention, as a further design improvement, the calibration plate assembly 2 further includes a handle 22. The calibration plate 21 is detachably mechanically connected to the connecting rod 23 through the handle 22. In this way, after disassembling and assembling the optical calibration device, the calibration plate 21 can be easily picked up and put down manually using the handle 22.

[0029] In an optical calibration device provided in this embodiment of the present invention, as a further design improvement, the bracket 1 is provided with a locking block 11 and a first locking knob 12. The height of the bracket 1 is adjustable, and each support leg of the bracket 1 is divided into at least two sections. The first locking knob 12 is provided on the locking block 11 to realize the height extension and locking of the bracket 1. By manually rotating the first locking knob 12, the locking block 11 and the support leg of the bracket 1 can be locked and released, thereby realizing the adjustment of the placement height of the calibration plate assembly 2.

[0030] In an optical calibration device provided in this embodiment of the present invention, as a further design improvement, the bracket 1 is also provided with a second locking knob 13. The second locking knob 13 is mechanically connected to the fixed base 3 through the bracket 1 to realize the adjustment of the opening angle and the locking of the position of the bracket 1, thereby facilitating the opening and closing of the bracket 1 after disassembly.

[0031] In an optical calibration device provided in this embodiment of the present invention, as a further design improvement, the movable base 4 also includes a protective cover 41. The protective cover 41 is disposed on the outside of the movable base 4 to protect the internal components of the movable base 4, prevent external dust and other contaminants from entering the interior of the movable base 4, and play a good protective role.

[0032] Compared with the prior art, the optical calibration device provided in this utility model embodiment is reasonably designed and easy to adjust and disassemble. Through the structural design of the movable base 4 and universal joint assembly 5, the optical calibration device can be adjusted in various positions and postures, with good stability, and can meet the various optical calibration needs of users for image acquisition equipment.

[0033] The following points need to be explained:

[0034] (1) Unless otherwise defined, the same reference numerals in the embodiments of this utility model and the accompanying drawings have the same meaning.

[0035] (2) The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment. Other structures can refer to the general design.

[0036] (3) For clarity, some structures in the drawings used to describe embodiments of the present invention may be enlarged or reduced, that is, these drawings are not drawn to actual scale.

[0037] (4) Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An optical calibration device, characterized in that, include: The bracket (1), calibration plate assembly (2), fixed base (3), movable base (4), and universal joint assembly (5) are provided. The bracket (1) is located below the fixed base (3) and is hinged to the fixed base (3) to realize the opening and closing action of the bracket (1). The universal joint assembly (5) is mechanically connected to the fixed base (3) through the movable base (4) to realize the rotation of the universal joint assembly (5) in the horizontal plane. The calibration plate assembly (2) is mechanically connected to the universal joint assembly (5) to realize the rotation of the calibration plate assembly (2) in the vertical plane.

2. The optical calibration device according to claim 1, characterized in that, The universal joint assembly (5) includes: a universal joint (51) and a joint sleeve (52). The movable base (4) includes a bearing assembly (42). The universal joint (51) is disposed in the joint sleeve (52) and mechanically connected to the bearing assembly (42) to realize the rotation of the universal joint (51) in the horizontal plane.

3. The optical calibration device according to claim 2, characterized in that, The calibration plate assembly (2) includes a calibration plate (21) and a connecting rod (23). The calibration plate (21) is detachably mechanically connected to the universal joint (51) via the connecting rod (23) to enable the calibration plate (21) to rotate in the vertical plane.

4. The optical calibration device according to claim 3, characterized in that, The connector sleeve (52) is provided with a connector cavity (521) and a slot (522). The ball head of the universal joint (51) is placed in the connector cavity (521). The universal joint (51) is provided with a ball head connecting rod (511). The ball head connecting rod (511) is placed in the slot (522) to realize the position limit and attitude adjustment of the ball head connecting rod (511) together with the calibration plate assembly (2).

5. The optical calibration device according to claim 3, characterized in that, The calibration plate assembly (2) further includes a handle (22), and the calibration plate (21) is detachably mechanically connected to the connecting rod (23) via the handle (22).

6. The optical calibration device according to claim 1, characterized in that, The bracket (1) is provided with a locking block (11) and a first locking knob (12). The height of the bracket (1) is adjustable. The first locking knob (12) is located on the locking block (11) to realize the height extension and locking of the bracket (1).

7. The optical calibration device according to claim 6, characterized in that, The bracket (1) is also provided with a second locking knob (13), which is mechanically connected to the fixed base (3) through the bracket (1) to realize the opening angle adjustment and position locking of the bracket (1).

8. The optical calibration device according to claim 1, characterized in that, The movable base (4) also includes a protective cover (41), which is disposed on the outside of the movable base (4) to protect the internal components of the movable base (4).

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