Lens detection tool

Abstract

The utility model relates to the technical field of optical detection, in particular to a lens detection tool, which comprises an illumination lens, a resolution plate, a detection lens and a CCD (Charge Coupled Device) are sequentially arranged along the direction of an illumination light path by reflecting a light source entering the illumination lens, the light source sequentially penetrates through the resolution plate, the detection lens and the CCD, the detection lens is mounted on a support plate, and the CCD is mounted on the support plate. A rotating surface is arranged at the contact position of the supporting plate and the detection lens, so that the detection lens rotates on the rotating surface, and the CCD images an image on the resolution plate on the terminal, the detection lens can rotate on the rotating surface, and the deviation position of the lens can be quickly judged in a rotating manner, so that the lens can be adjusted; through the mutual cooperation of the abutting plate and the supporting plate, the detection lens is stably fixed on the supporting plate, and the influence of unclear imaging caused by other factors on the judgment of the lens is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of optical detection, in particular to a lens detection tool. Background Art

[0002] With the rapid development of optical technology, lenses, as core components of imaging systems, have a significant impact on imaging and application performance and quality. Therefore, lens inspection has become particularly important. Lens inspection tooling, a crucial tool for lens inspection and calibration, directly determines the accuracy and efficiency of inspection.

[0003] Traditional lens inspection tooling is complex in design and cumbersome to operate, which not only increases the difficulty of inspection but also reduces inspection efficiency. Furthermore, some tooling does not secure the lens securely enough, causing it to shake during inspection, affecting accuracy.

[0004] Therefore, the present application has developed a lens inspection tool to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a lens detection tool to solve the problem that the existing technology cannot quickly and effectively determine which problems exist in the lens and cause unclear imaging or no imaging.

[0006] The technical solution of the utility model is: a lens detection tool, comprising:

[0007] The lighting lens reflects the light source entering itself to form an illumination light path. A resolution plate, a detection lens, and a CCD are arranged in sequence along the direction of the illumination light path, so that the light source passes through the resolution plate, the detection lens, and the CCD in sequence. The detection lens is mounted on a support plate. A rotating surface is provided at the contact position between the support plate and the detection lens, so that the detection lens rotates on the rotating surface. The CCD images the image on the resolution plate on the terminal.

[0008] Preferably, the rotating surface is a concave arc surface, and the rotating surface matches the outer side surface of the detection lens. When the detection lens is clamped in the rotating surface, the detection lens can rotate on the rotating surface.

[0009] Preferably, an outer wall of the support plate is provided with an abutment plate, which is concentric with the detection lens. When the detection lens matches the rotating surface, the abutment plate abuts against the support plate.

[0010] Preferably, a chamfer is provided at the connection between the support plate surface and the rotating surface, the rotating surface is concentric with the detection lens, and the rotating surface is a superior arc surface.

[0011] Preferably, a first adjustment device is installed at the bottom of the resolution plate, and the first adjustment device drives the resolution plate to move along the direction of the illumination light path. A second adjustment device is installed at the bottom of the CCD, and the second adjustment device drives the CCD to move in the three directions of X axis, Y axis and Z axis.

[0012] Preferably, the distance between the illumination lens and the resolution plate is 110 mm to 140 mm, the distance between the resolution plate and the detection lens is 10 mm to 20 mm, and the distance between the detection lens and the CCD is 100 mm to 150 mm.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) The detection lens can rotate on the rotating surface, and the offset position of the lens can be quickly determined by rotation, so as to adjust the lens;

[0015] (2) Through the cooperation between the abutment plate and the support plate, the detection lens is stably fixed on the support plate, reducing the impact of other factors on the judgment of the lens due to unclear imaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a structural diagram of a lens detection tooling according to the present invention;

[0018] Figure 2 This is a front view of a lens detection tooling according to the present invention;

[0019] Figure 3 This is an exploded view of the installation of the detection lens and the support plate of the utility model;

[0020] Figure 4 This is a side view of the installation of the detection lens and the support plate of the utility model.

[0021] Among them: 1. lighting lens; 2. resolution board; 3. detection lens; 4. CCD; 5. support plate; 51. rotating surface; 6. abutment plate; 7. first adjustment device; 8. second adjustment device. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the present invention in conjunction with specific embodiments:

[0023] like Figure 1-Figure 3As shown, a lens detection tooling includes an illumination lens 1, a resolution board 2, a detection lens 3, and a CCD 4. The light source enters the illumination lens 1, and after passing through the illumination lens 1, the light is reflected to form an illumination light path, so that the light can pass through the resolution board 2, the detection lens 3 and the CCD 4. The light of the light source is focused or collimated by the illumination lens 1 to form an illumination beam with a certain direction and intensity to ensure the quality of subsequent imaging. Moreover, through the designed illumination light path and the position of the detection lens 3, it can be ensured that the light can accurately illuminate the resolution board 2 and pass through the detection lens 3. The image on the resolution board 2 is clearly presented on the terminal through the CCD 4, wherein the detection lens 3 is mounted on a support plate 5, and a rotating surface 51 is provided on the support plate 5. The rotating surface 51 provides rotational support for the detection lens 3. When the lens is installed with an offset, the image is blurred or has a ghost. By rotating the detection lens 3 to observe the change in the image, the offset direction of the lens can be judged. The offset position can be judged quickly and accurately, thereby adjusting the lens, greatly increasing the detection efficiency and accuracy.

[0024] In this embodiment, the spacing between the illumination lens 1 and the resolution board 2 is 110mm~140mm, the spacing between the resolution board 2 and the detection lens 3 is 10mm~20mm, and the spacing between the detection lens 3 and the CCD4 is 100mm~150mm. The appropriate spacing between the illumination lens 1 and the resolution board 2 can reduce the scattering and loss of light during the propagation process, thereby improving the quality of light reaching the resolution board 2 and the detection lens 3; the distance between the resolution board 2 and the detection lens 3 is relatively close, which can reduce the image blur caused by the diffraction effect, thereby improving the system resolution. At the same time, the appropriate spacing between the detection lens 3 and the CCD4 can ensure that the image maintains clarity and details when transmitted to the CCD4, avoiding image distortion. By setting the distance between the resolution board 2, the detection lens 3 and the CCD4, the influence of other factors on the image blur caused by lens offset can be reduced. At the same time, the appropriate spacing can reduce image jitter caused by equipment vibration or external interference.

[0025] Furthermore, if Figure 3-Figure 4 As shown, the rotating surface 51 is a concave arc surface, and the arc surface matches the outer surface of the detection lens 3. The tightly fitting design also helps to reduce the influence of interference factors such as external light and dust on the detection results, further improving the accuracy of the detection. The arc surface provides a stable support surface for the detection lens 3, making it less likely for the lens to shake or move during the detection process. The design of the arc surface helps to disperse and reduce the influence of these vibrations on the lens, thereby improving the stability of the system.

[0026] Furthermore, the rotating surface 51 is concentric with the detection lens 3, and the rotating surface 51 is a superior arc surface, which can clamp the detection lens 3 on the rotating surface 51 and cooperate with the abutment plate 6 to improve the stability of the detection lens 3. At the same time, it can also reduce the error caused by position change when rotating the lens.

[0027] In order to improve the stability of the detection lens 3, an abutment plate 6 is provided on the outer wall circle of the support plate 5. When the rotating lens matches the rotating surface 51, the abutment plate 6 and the support plate 5 abut against each other, and the abutment plate 6 is concentric with the detection lens 3. The mutual abutment between the abutment plate 6 and the support plate 5 provides a stable support structure for the detection lens 3, ensuring that the lens will not shake or displace due to external force during rotation or detection, thereby ensuring clear imaging.

[0028] To facilitate the adjustment of object distance and image distance, a first adjustment device 7 is installed at the bottom of the resolution plate 2, and a second adjustment device 8 is installed at the bottom of the CCD4. The first adjustment device 7 enables the resolution plate 2 to move along the direction of the illumination light path, and the second adjustment device 8 can move along the three directions of X-axis, Y-axis and Z-axis, wherein the X-axis direction is the direction of the illumination light path, the Y-axis direction is the direction perpendicular to the X-axis in the horizontal plane, and the Z-axis direction is the direction perpendicular to the plane where the X-axis and Y-axis are located. The first adjustment device 7 and the second adjustment device 8 can quickly enable image analysis.

[0029] The implementation principle of this embodiment is as follows:

[0030] When performing lens detection, the lighting lens 1 and the detection lens 3 are installed on the support plate 5, and then the positions of the resolution board 2 and the CCD4 are adjusted by the first adjustment device 7 and the second adjustment device 8. The light source emits light into the lighting lens 1, which is reflected by the lighting lens 1 to form a stable lighting light path. The light passes through the resolution board 2, the detection lens 3 and the CCD4 in turn, and the image on the resolution board 2 is imaged on the terminal through the CCD4. When no image is presented, it proves that the lens is installed incorrectly or upside down. After removing the lens, check the reason why it cannot form an image. When the image is blurred or there is a ghost, rotate the detection lens 3 to make the detection lens 3 rotate on the rotating surface 51. By observing the changes in the image, the offset direction and offset distance of the lens can be judged, so that adjustments can be made quickly.

[0031] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they are not intended to limit the scope of protection of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A lens inspection tool, characterized in that: include: The illumination lens (1) reflects the light source entering the illumination lens to form an illumination light path. A resolution plate (2), a detection lens (3), and a CCD (4) are sequentially arranged along the direction of the illumination light path, so that the light source passes through the resolution plate (2), the detection lens (3), and the CCD (4) in sequence. The detection lens (3) is mounted on a support plate (5). A rotating surface (51) is provided at a contact position between the support plate (5) and the detection lens (3), so that the detection lens (3) rotates on the rotating surface (51). The CCD (4) forms an image on the resolution plate (2) on a terminal.

2. The lens inspection tool according to claim 1, characterized in that: The rotating surface (51) is an inwardly concave arc surface, and the rotating surface (51) matches the outer surface of the detection lens (3). When the detection lens (3) is engaged in the rotating surface (51), the detection lens (3) can rotate on the rotating surface (51).

3. The lens inspection tool according to claim 2, characterized in that: An abutment plate (6) is provided on the outer wall of the support plate (5), and the abutment plate (6) is concentric with the detection lens (3). When the detection lens (3) matches the rotating surface (51), the abutment plate (6) abuts against the support plate (5).

4. The lens inspection tool according to claim 2, characterized in that: A chamfer is provided at the connection between the surface of the support plate (5) and the rotating surface (51); the rotating surface (51) is concentric with the detection lens (3); and the rotating surface (51) is a superior arc surface.

5. The lens inspection tool according to claim 1, characterized in that: A first adjusting device (7) is installed at the bottom of the resolution plate (2), and the first adjusting device (7) drives the resolution plate (2) to move along the direction of the illumination light path. A second adjusting device (8) is installed at the bottom of the CCD (4), and the second adjusting device (8) drives the CCD (4) to move in the three directions of the X axis, the Y axis, and the Z axis.

6. The lens inspection tool according to claim 1, characterized in that: The distance between the illumination lens (1) and the resolution plate (2) is 110 mm to 140 mm, the distance between the resolution plate (2) and the detection lens (3) is 10 mm to 20 mm, and the distance between the detection lens (3) and the CCD (4) is 100 mm to 150 mm.

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