Fixing device for plane light source calibration drawing

Abstract

The utility model relates to a fixing device for a plane light source calibration drawing, which comprises a turnover mechanism connected with a plane light source, a rotary fixing seat in the turnover mechanism is connected to the outer side of a frame of the plane light source, the side of the rotary fixing seat is connected with a rotating shaft connecting plate, and the rotating shaft connecting plate is provided with a shaft hole which is connected with a rotating shaft in a penetrating mode. The rotating shaft is sleeved with an adapter block and connected with a rotating pressing plate through the adapter block, one end of the rotating fixing base is connected with an overturning fixing plate and abuts against a frame of the plane light source, and the overturning fixing plate and the rotating pressing plate are both connected with strong magnet blocks. According to the device, the strong magnets on the rotary fixing seat and the turnover fixing plate are mutually attracted, so that the calibration drawing can be quickly fixed, fine adjustment is supported, and the calibration drawing can be taken down in a lossless manner. And the handle seat can be opened and closed more conveniently and comfortably, and calibration drawings can be replaced more quickly and conveniently.

Description

Technical Field

[0001] The utility model relates to a fixing device for a calibration drawing of a planar light source, belonging to the technical field of optical calibration auxiliary tools. Background Technique

[0002] During the shooting process of a camera, the image may be distorted to varying degrees due to factors such as lens manufacturing precision and installation error. In order to correct these distortions, it is necessary to solve the distortion parameters through a calibration process. Through the calibration of the distortion parameters, a corrected image can be generated, avoiding barrel and pillow distortions in the captured image, thereby improving the quality and accuracy of the image. Usually, when calibrating the distortion parameters of a camera, it is necessary to attach a calibration drawing to a large planar light source and use the product under test to shoot the calibration drawing to complete the calibration of the distortion parameters.

[0003] Since the light-emitting surface of the planar light source is a plane, also known as a surface light source, it is commonly used in mechanical part size measurement, chip shape detection, film stain detection, and transparent object scratch detection, etc. Currently, for the calibration of camera distortion parameters, the calibration drawing is usually fixed by tape or a pressing plate. However, such operations are relatively complex, and it is not convenient to finely adjust the position of the calibration drawing after it is attached. Therefore, there is an urgent need for a fixing device for a planar light source calibration drawing to solve the problems raised in the above background technique. Content of the Utility Model

[0004] This section of the application is used to briefly introduce ideas, which will be described in detail in the following specific implementation section. This section of the application does not aim to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0005] Aiming at the problems and deficiencies in the prior art, the purpose of the utility model is to provide a fixing device for a planar light source calibration drawing, which can achieve a fast opening and closing state through the form of rotation of a rotating shaft, facilitating the rapid attachment of the calibration drawing to the planar light source. Combining the magnetic force of a strong magnet block can always maintain a closed state without loosening, effectively improving the stability and accuracy of the position of the calibration drawing. To solve the problems raised in the above background technique.

[0006] To achieve the above object, the utility model provides the following technical solution: It includes a flipping mechanism connected to a planar light source. The flipping mechanism includes a rotary fixing base and a rotary pressing plate. The rotary fixing base is connected to the outer side of the frame of the planar light source. A rotating shaft connecting plate is connected to the side of the rotary fixing base. An axial hole is formed in the rotating shaft connecting plate and passes through to connect a rotating shaft. A transfer block is sleeved outside the rotating shaft. The rotary pressing plate is connected through the transfer block. One end of the rotary fixing base is connected to a flipping fixing plate and abuts against the frame of the planar light source. Strong magnet blocks are connected to both the flipping fixing plate and the rotary pressing plate.

[0007] Preferably, an elastic rubber strip is connected to one side edge of the rotary pressing plate. The elastic rubber strip usually plays roles such as sealing, wear resistance, corrosion resistance, insulation, and buffering. By connecting the elastic rubber strip to one side edge of the rotary pressing plate, when calibrating the distortion parameters by marking a drawing on the planar light source, it can play a certain buffering and anti-slip role, so that the marked drawing will not be damaged when contacting the flipping mechanism. At the same time, it can also increase the friction between the flipping mechanism and the marked drawing, making the drawing not easy to move after being attached.

[0008] Preferably, a handle seat is connected to the outer side surface of the rotary pressing plate. By connecting the handle seat to the outer side surface of the rotary pressing plate, the operator can easily open and close the flipping mechanism by using the handle seat, making it more convenient to use and greatly improving the comfort during use.

[0009] Preferably, a strong magnet block is also provided inside the rotary fixing base. The strong magnet block can generate a strong magnetic field and is usually made of a permanent magnetic material or an electromagnetic coil. Through the strong magnet block inside the rotary fixing base, the rotary fixing base can be firmly adsorbed on the outer side of the frame of the planar light source, which can not only make the connection between the flipping mechanism and the planar light source more stable and firm, but also enable the flexible disassembly of the flipping mechanism.

[0010] Preferably, multiple axial holes can be formed in the rotating shaft connecting plate. The utility model forms multiple axial holes in the rotating shaft connecting plate, and through these axial holes, the position adjustment between the rotary fixing base and the rotary pressing plate can be realized. During use, the axial hole at an appropriate position can be selected to connect the rotating shaft according to the thickness of the marked drawing to expand the applicability of the utility model.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model has the characteristics of simple structure and easy operation, and can make the calibration drawings used in the camera calibration distortion parameters be fixed quickly and stably. The utility model mainly includes a flip mechanism, a rotating fixed seat in the flip mechanism is connected to the outer side of the frame of the plane light source, an axial hole is opened on the rotating shaft connecting plate connected to the side of the rotating fixed seat to pass through the connecting rotating shaft, and an adapter block is sleeved on the outer side of the rotating shaft for connecting the rotating pressing plate. The strong magnet block inside the rotating fixed seat and the strong magnet block on the flip fixed plate are mutually adsorbed, so that the calibration drawings can be quickly fixed. In addition, the calibration drawings are protected from being damaged when they come into contact with the folding mechanism by the elastic rubber strip, and the calibration drawings are not easy to move after the attachment is completed. The calibration drawings can also be completely attached to the elastic rubber strip. If there is any skew after the attachment, it can be fine-tuned online by hand. The handle seat makes it more convenient and comfortable when opening and closing. The utility model device can make it faster and more convenient to replace the calibration drawings, and supports fine-tuning and can remove the calibration drawings without damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0014] In the attached picture:

[0015] Figure 1 : It is a front view structural diagram of the device of the utility model;

[0016] Figure 2 : It is a schematic diagram of the structure of the utility model when viewed from above;

[0017] Figure 3 : It is a structural schematic diagram of the turning mechanism in the utility model;

[0018] Figure 4 : It is a schematic diagram of the structure when the flip mechanism of the utility model is opened;

[0019] Figure 5 : It is a structural schematic diagram of the turning mechanism of the utility model when it is closed.

[0020] The markings in the figure are: 1. Plane light source; 2. Rotating fixed seat; 3. Rotating axis; 4. Adapter block; 5. Rotating pressure plate; 6. Handle seat; 7. Elastic rubber strip; 8. Flip fixing plate; 9. Rotating axis connecting plate. DETAILED DESCRIPTION

[0021] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although some embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided to more thoroughly and completely understand the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not used to limit the protection scope of the present disclosure.

[0022] In addition, it should be noted that for the sake of convenience of description, only the parts related to the utility model are shown in the drawings. Without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other. The present disclosure will be described in detail below with reference to the drawings and in combination with the embodiments.

[0023] A fixing device for a calibration drawing of a planar light source provided in this embodiment, as Figures 1 to 5 shown: It includes a flipping mechanism connected to the planar light source 1. The flipping mechanism includes a rotating fixing base 2 and a rotating pressing plate 5. The rotating fixing base 2 is connected to the outer side of the frame of the planar light source 1. A rotating shaft connecting plate 9 is connected to the side of the rotating fixing base 2. A shaft hole is opened on the rotating shaft connecting plate 9 to pass through and connect the rotating shaft 3, and a transfer block 4 is sleeved outside the rotating shaft 3. The rotating pressing plate 5 is connected through the transfer block 4. One end of the rotating fixing base 2 is also connected to a flipping fixing plate 8 and abuts against the frame of the planar light source 1, and strong magnet blocks are connected to both the flipping fixing plate 8 and the rotating pressing plate 5.

[0024] This embodiment further includes that one side edge of the rotating pressing plate 5 is connected with an elastic rubber strip 7, and a handle seat 6 is connected to the outer side surface of the rotating pressing plate 5. The elastic rubber strip 7 can ensure that the calibration drawing will not be damaged when contacting the flipping mechanism, and at the same time can also increase the friction between the flipping mechanism and the calibration drawing, making the drawing not easy to move after being attached. The operator can easily open and close the flipping mechanism by using the handle seat 6, making it more convenient to use and greatly improving the comfort during use.

[0025] This embodiment further includes that multiple shaft holes can be opened on the rotating shaft connecting plate 9, and a strong magnet block is provided inside the rotating fixing base 2. Through the strong magnet block inside the rotating fixing base 2, the rotating fixing base 2 can be firmly adsorbed on the outer side of the frame of the planar light source 1, which can not only make the connection between the flipping mechanism and the planar light source 1 more stable and firm, but also complete the flexible disassembly of the flipping mechanism. During the use process, the shaft hole at a suitable position on the rotating shaft connecting plate 9 can be selected to connect the rotating shaft 3 according to the thickness of the calibration drawing to expand the applicability of the present utility model.

[0026] The usage method of the present utility model

[0027] The device of the present utility model is connected to the four-sided frame of the planar light source 1. Specifically, the rotary fixing base 2 is connected to the outer side of the four-sided frame of the planar light source 1. Both sides of the rotary fixing base 2 are connected with the rotating shaft connecting plates 9, and a plurality of shaft holes are formed in the rotating shaft connecting plates 9 for passing through and connecting the rotating shaft 3. After the outer side of the rotating shaft 3 is sleeved with the adapter block 4, it is then connected to the rotating pressing plate 5. The rotating pressing plate 5 is designed as a right-angle plate structure, and an elastic rubber strip 7 is also connected to one side edge of the rotating pressing plate 5. A strong magnet block is arranged inside the rotary fixing base 2. The rotary fixing base 2 is adsorbed on the outer side of the frame of the planar light source 1 through the strong magnet block inside it, and a quick-disassembly and flipping mechanism can be achieved. A flipping fixing plate 8 is also vertically connected to the rotary fixing base 2, and the flipping fixing plate 8 abuts against the frame of the planar light source 1. Strong magnet blocks are arranged inside the rotating pressing plate 5 and above the flipping fixing plate 8. The quick fixation of the calibration drawing can be realized by the adsorption of the rotating pressing plate 5 and the flipping fixing plate 8. The flipping angle of the rotating pressing plate 5 can also be effectively limited through the flipping fixing plate 8 to prevent the rotating pressing plate 5 from rotating excessively and damaging the planar light source 1.

[0028] During use, the rotary fixing base 2 in the flipping mechanism is adsorbed on any outer side of the frame of the planar light source 1. The calibration drawing to be calibrated is placed on the light-emitting panel of the planar light source 1, and the rotating pressing plate 5 is manually toggled. The rotating pressing plate 5 rotates downward under the drive of the rotating shaft 3 and the adapter block 4. When rotating downward, the position of the rotating pressing plate 5 is fixed by adsorbing the rotating pressing plate 5 and the flipping fixing plate 8. At this time, the elastic rubber strip 7 is attached to the calibration drawing to complete the fixation of the calibration drawing. After the calibration drawing is attached, if there is any skewing phenomenon, it can be manually fine-tuned online by the operator. When the calibration drawing is used up and needs to be taken out or replaced, the rotating pressing plate 5 can be easily lifted through the handle seat 6 for convenient subsequent replacement. In addition, in order to further make the position of the calibration drawing accurate, flipping mechanisms can be installed on the outer sides of the four outer frames of the planar light source 1. When fixing the calibration drawing, first close the flipping mechanism on the upper side, then the flipping mechanisms on both sides, and finally complete the closing of the flipping mechanism on the lower side. After all are closed, observe whether the fitting condition of the calibration drawing meets the requirements. If not, directly perform fine-tuning.

[0029] In the description of the present utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.

[0030] In addition to the above embodiments, the present utility model may also have other implementation manners. For those skilled in the art, it is still possible to modify the technical solutions recorded in the above embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fixing device for a calibration drawing of a planar light source, characterized in that: It includes a flipping mechanism connected to a planar light source (1). The flipping mechanism includes a rotating fixed seat (2) and a rotating pressing plate (5). The rotating fixed seat (2) is connected to the outer side of the frame of the planar light source (1). A rotating shaft connecting plate (9) is connected to the side of the rotating fixed seat (2). An axial hole is opened on the rotating shaft connecting plate (9) to pass through and connect a rotating shaft (3), and a transfer block (4) is sleeved outside the rotating shaft (3). The rotating pressing plate (5) is connected through the transfer block (4). One end of the rotating fixed seat (2) is connected to a flipping fixed plate (8) and abuts against the frame of the planar light source (1), and strong magnet blocks are connected to both the flipping fixed plate (8) and the rotating pressing plate (5).

2. The fixing device for a planar light source calibration drawing according to claim 1, characterized in that: One side edge of the rotating pressing plate (5) is connected with an elastic rubber strip (7).

3. The fixing device for a planar light source calibration drawing according to claim 2, characterized in that: A handle seat (6) is connected to the outer side surface of the rotating pressing plate (5).

4. The fixing device for a calibration drawing of a planar light source according to claim 1, wherein: A strong magnet block is also provided inside the rotating fixed seat (2).

5. The fixing device for a planar light source calibration drawing according to claim 1, characterized in that: Multiple axial holes can be opened on the rotating shaft connecting plate (9).

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