Identification piece, and method and device for adjusting centering of lens and camera

Abstract

The invention relates to an identification piece and a method and device for adjusting centering of a lens and a camera. The identification piece provided by the invention is used for centering adjustment of a lens, and comprises a body which is a rotating body with the optical axis of the lens as the center; and the identification part is located in the center of the body, and the identification part allows light to pass through. In the invention, aiming at the identification piece which is used for centering the lens, that is, along the optical axis direction, the center of the lens and the center of the camera coincide and are adjusted, the identification part is arranged on the identification piece, and the identification part is positioned in the center of the body and is set to allow the light to pass through. By means of the arrangement, in the lens centering process, the lens can be centered through the distance difference between the light penetrating through the identification part and the center of the lens.

Description

Technical Field

[0001] The present disclosure relates to the field of lens centering, and in particular to an identification member, a method for adjusting the centering of a lens and a camera, and a device. Background Art

[0002] In some manufacturing fields where lenses are designed, it is necessary to center the lens. For example, in the manufacturing field of electronic equipment, when testing cameras, the equipment for testing electronic equipment needs to use a relay lens to simulate increasing the shooting distance from the electronic equipment to the test chart. When using a relay lens, it is necessary to make the camera corresponding to the electronic equipment and the center of the relay lens on a vertical line. In the same electronic equipment project, different test items correspond to different cameras, and the position of the relay lens needs to be debugged. In different electronic equipment projects, due to changes in the position of the camera, the position of the relay lens and the corresponding camera needs to be re-debugged. In addition to daily inspections, if the position of the relay lens is deviated, it also needs to be re-debugged, so debugging the position of the relay lens will be a frequent task. Summary of the invention

[0003] In order to overcome the problems existing in the related art, the present disclosure provides an identification member, a method and a device for adjusting the alignment of a lens and a camera.

[0004] According to a first aspect of an embodiment of the present disclosure, there is provided an identification member for centering a lens, comprising: a main body, which is a rotating body centered on the optical axis of the lens; and an identification portion, which is located at the center of the main body and allows light to pass through.

[0005] In some embodiments, the identification portion is provided with scales.

[0006] In some embodiments, the main body is a low light transmittance portion, and the logo portion is hollow.

[0007] In some embodiments, the identification portion is in a hole shape, a linear distribution shape, or a surface distribution shape.

[0008] In some embodiments, the body includes a light shielding portion, and the light transmittance of the light shielding portion is lower than the light transmittance of the logo portion.

[0009] In some embodiments, the light shielding portion includes black paint or black dye.

[0010] In some embodiments, the body has a shape that matches the light incident surface of the lens; and / or the body has a shape that matches the light exit surface of the lens.

[0011] In some embodiments, the identification member includes a first body and a second body that are arranged opposite to each other in the direction in which light passes, a first identification portion is arranged at the center of the first body, and a second identification portion is arranged at the center of the second body.

[0012] According to a second aspect of an embodiment of the present disclosure, a method for adjusting the alignment of a lens and a camera is provided, the method comprising: obtaining a photograph of the lens through the camera, wherein the lens and the identification member are arranged along an optical axis direction of the camera; determining whether the center of the lens and the center of the camera along the optical axis direction coincide with each other by comparing a first center of the photo with a second center of the identification portion in the photograph, wherein the identification portion is located at the center of a body of the identification member; based on the fact that the center of the lens and the center of the camera along the optical axis direction do not coincide with each other, adjusting the movement of the lens and / or adjusting the movement of the camera until the center of the lens and the center of the camera along the optical axis direction coincide with each other.

[0013] In some embodiments, by comparing the first center of the photo with the second center of the identification part in the photo, it is determined whether the center of the lens and the center of the camera along the optical axis direction coincide with each other, including: obtaining the first center of the photo, wherein the first center is the intersection of two diagonals of the photo, and obtaining the geometric center of the identification part as the second center; and determining whether the center of the lens and the center of the camera along the optical axis direction coincide with each other based on whether the first center and the second center coincide with each other.

[0014] In some embodiments, based on the fact that the center of the lens along the optical axis direction does not coincide with the center of the camera, the lens movement is adjusted, and / or the camera movement is adjusted until the center of the lens along the optical axis direction coincides with the center of the camera, including: if the center of the lens along the optical axis direction does not coincide with the center of the camera, a first relative offset between the first center and the second center is obtained; and according to the first relative offset, the lens movement is adjusted, and / or the camera movement is adjusted until the center of the lens along the optical axis direction coincides with the center of the camera.

[0015] In some embodiments, obtaining a photo of the lens through the camera includes: controlling the center of the camera to focus and take a photo; and obtaining the photo taken by the camera.

[0016] In some embodiments, the method also includes: judging whether the optical axis of the lens is parallel to the direction from the first identification portion to the second identification portion by comparing whether the center of the first identification portion in the photo coincides with the center of the second identification portion; based on the fact that the optical axis of the lens is not parallel to the direction from the first identification portion to the second identification portion, adjusting the rotation of the lens until they are parallel.

[0017] In some embodiments, based on the fact that the optical axis of the lens is not parallel to the direction from the first identification portion to the second identification portion, adjusting the lens to rotate until they are parallel includes: based on the fact that the optical axis of the lens is not parallel to the direction from the first identification portion to the second identification portion, obtaining a second relative offset between the center of the first identification portion and the center of the second identification portion; and according to the second relative offset, adjusting the movement of the lens until the optical axis of the lens is parallel to the direction from the first identification portion to the second identification portion.

[0018] In some embodiments, the method further includes: acquiring a first coordinate of the lens and a second coordinate of the camera based on the coincidence of a center of the lens and a center of the camera along the optical axis direction.

[0019] According to a third aspect of an embodiment of the present disclosure, there is provided a device for adjusting the alignment of a lens and a camera, comprising: an acquisition unit for acquiring a photograph of the lens through the camera, wherein the lens and the identification member are arranged along an optical axis direction of the camera; and a judgment unit for judging whether the center of the lens and the center of the camera along the optical axis direction coincide with each other by comparing a first center of the photograph with a second center of an identification portion in the photograph, wherein the identification portion is located at the center of a body of the identification member.

[0020] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: In the present disclosure, for the identification member used for adjusting the centering of the lens (i.e., the center of the lens coincides with the center of the camera along the optical axis), an identification portion is provided on the identification member, the identification portion is located at the center of the body and is configured to allow light to pass through. With such a configuration, the lens can be centered by utilizing the distance difference between the light passing through the identification portion and the center of the lens during the lens centering process.

[0021] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0023] Figure 1 It is a schematic diagram of the structure of an identification element according to an exemplary embodiment.

[0024] Figure 2 is a plan view of an identification element according to an exemplary embodiment.

[0025] Figure 3 is a schematic diagram showing a lens centering according to an exemplary embodiment.

[0026] Figure 4 is a plan view of an identification element according to an exemplary embodiment.

[0027] Figure 5 is a plan view of an identification element according to an exemplary embodiment.

[0028] Figure 6 is a schematic diagram showing a lens centering according to an exemplary embodiment.

[0029] Figure 7 is a schematic diagram showing a lens centering according to an exemplary embodiment.

[0030] Figure 8 The figure is a schematic diagram of a lens centering process according to an exemplary embodiment.

[0031] Fig. 9 The present invention is a flow chart showing a method for adjusting the alignment between a lens and a camera according to an exemplary embodiment.

[0032] Fig.10 The present invention is a flow chart showing a method for adjusting the alignment between a lens and a camera according to an exemplary embodiment.

[0033] Fig.11 The present invention is a flow chart showing a method for adjusting the alignment between a lens and a camera according to an exemplary embodiment.

[0034] Fig.12 The present invention is a flow chart showing a method for adjusting the alignment between a lens and a camera according to an exemplary embodiment.

[0035] Fig.13 The present invention is a flow chart showing a method for adjusting the alignment between a lens and a camera according to an exemplary embodiment.

[0036] Fig.14 The invention is a block diagram of a device for adjusting the alignment between a lens and a camera according to an exemplary embodiment.

[0037] Fig.15 The present invention is a flow chart showing a method for adjusting the alignment between a lens and a camera according to an exemplary embodiment.

[0038] Fig.16 It is a block diagram of a device according to an exemplary embodiment. DETAILED DESCRIPTION

[0039] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0040] In some manufacturing fields where lenses are designed, it is necessary to center the lens. For example, in the manufacturing field of electronic equipment, when testing cameras, the equipment for testing electronic equipment needs to use a relay lens to simulate increasing the shooting distance from the electronic equipment to the test chart. When using a relay lens, it is necessary to make the camera corresponding to the electronic equipment and the center of the relay lens on a vertical line. In the same electronic equipment project, different test items correspond to different cameras, and the position of the relay lens needs to be debugged. In different electronic equipment projects, due to changes in the position of the camera, the position of the relay lens and the corresponding camera needs to be re-debugged. In addition to daily inspections, if the position of the relay lens is deviated, it also needs to be re-debugged, so debugging the position of the relay lens will be a frequent task.

[0041] In order to overcome the problems existing in the related art, the present disclosure provides an identification member, a method and a device for adjusting the alignment of a lens and a camera.

[0042] The identification member provided by the present disclosure is used for centering adjustment of the lens, and includes: a main body, which is a rotating body centered on the optical axis of the lens; and an identification part, which is located at the center of the main body and allows light to pass through.

[0043] In the present disclosure, for the identification member used for adjusting the centering of the lens (i.e., the center of the lens coincides with the center of the camera along the optical axis), an identification portion is provided on the identification member, the identification portion is located at the center of the body and is configured to allow light to pass through. With such a configuration, the lens can be centered by utilizing the distance difference between the light passing through the identification portion and the center of the lens during the lens centering process.

[0044] Figure 1 It is a schematic diagram of the structure of an identification element according to an exemplary embodiment. Figure 2 is a plan view of an identification element according to an exemplary embodiment.

[0045] like Figure 1 and Figure 2As shown, in the present disclosure, the identification member 10 may include a body 200 and a identification portion 100, and the identification portion 100 may be located at the center of the body 200. For example, when the identification member 10 is circular, the identification portion 100 may be located at the center of the identification member 10. When the identification member 10 is rectangular, the identification portion 100 may be located at the geometric center of the identification member 10. However, the present disclosure is not limited thereto. In some embodiments, the identification member 10 may be any regular shape or irregular shape, and the identification portion 100 may be located at the geometric center of the identification member 10.

[0046] like Figure 1 and Figure 2 As shown, in the present disclosure, the logo portion 100 can allow light to pass through, that is, the logo portion 100 can be light-transmissive. For example, the logo portion 100 can be a light-transmissive material, such as glass, lens, transparent resin, etc. Alternatively, the logo portion 100 can also be hollow, that is, the logo portion 100 passes through the body 200 of the logo member 10. That is, there is a through hole at the center of the body 200, and light can pass through the through hole.

[0047] In some embodiments, the body 200 of the identification member 10 (other parts except the identification portion 100) may be a low light transmittance portion, and the identification portion 100 may be hollowed out. Alternatively, the identification portion 100 may be a high light transmittance portion, and the body 200 may be a low light transmittance portion. The present disclosure does not make specific limitations, as long as the body and the identification portion 100 can be distinguished in the final imaging.

[0048] For example, Figure 1 As shown, in some embodiments, the body 200 may include a light shielding portion, and the light transmittance of the light shielding portion may be lower than the light transmittance of the logo portion 100. The light shielding portion may be disposed around the logo portion 100.

[0049] For example, the light shielding portion may include a black paint or a black dye. In this case, the light shielding portion may be considered to be opaque.

[0050] Figure 3 FIG. 1 is a schematic diagram showing a lens alignment according to an exemplary embodiment. Figure 3 As shown, during the lens centering process, the identification member 10 can be set on the light path of the light 40 irradiating to the lens 20 , for example, the light 40 can pass through the identification member 10 and then irradiate to the lens 20 .

[0051] In such an embodiment, the identification member 10 is located on one side of the lens 20, and the camera 300 is located on the other side of the lens 20. The light 40 passes through the identification portion 100 of the identification member 10 and passes through the lens 20 to enter the camera 300. Along the irradiation direction of the light 40, the identification portion 100 of the identification member 10 coincides with the center of the lens 20.

[0052] In this case, the camera 300 forms an image to form a photo 50, in which the image of the logo portion 100 can be seen. By comparing whether the image 100-a of the logo portion 100 coincides with the center A of the photo 50, it can be determined whether the lens 20 is centered with the camera 300. For example, if the distance difference between the image of the logo portion 100 and the center A of the photo 50 is 0, it can be considered that the lens 20 is centered with the camera 300. If not, the position of the lens 20 or the camera 300 can be adjusted according to the distance difference between the image 100-a of the logo portion 100 and the center A of the photo 50 until the two are centered.

[0053] The center A of the photo 50 may be the intersection of the two diagonal lines L1 and L2.

[0054] Figure 4 FIG. 1 is a plan view of a marking member according to an exemplary embodiment. Figure 4 As shown, in some embodiments, the logo portion 100 may be provided with a scale. With such a setting, the image of the logo portion 100 in the photo may also display the scale, and then, based on these customers, the distance difference between the image of the logo portion 100 and the center of the photo can be easily determined, and then the position of the lens 20 or the camera 300 can be adjusted until the two are centered.

[0055] like Figure 4 As shown, the scale of the identification portion 100 may be distributed in a cross shape, but the present disclosure is not limited thereto. In other possible embodiments, the scale of the identification portion 100 may also be distributed in any shape such as a straight line or a circle.

[0056] In some embodiments, the marking portion 100 may be in a hole shape, a linear distribution shape, or a surface distribution shape. Figure 5 FIG. 1 is a plan view of a marking member according to an exemplary embodiment. Figure 5 As shown, the identification portion 100 may be cross-shaped, such as Figure 1 As shown, the identification portion 100 may be in a hole shape. However, the present disclosure is not limited to these embodiments, and the identification portion may also be in other shapes.

[0057] In the aforementioned embodiments, the present disclosure states an embodiment in which the identification member 10 can be disposed on the path of the light 40, but the present disclosure is not limited thereto. Figure 6 is a schematic diagram showing a lens alignment according to an exemplary embodiment. Figure 6 As shown, in some embodiments, during the centering of the lens 20 , the identification member 10 may be disposed on the lens 20 . Along the direction in which the light 40 extends, the identification portion 100 of the identification member 10 may coincide with the center of the lens 20 .

[0058] Figure 7FIG. 1 is a schematic diagram showing a lens alignment according to an exemplary embodiment. Figure 7 As shown, the body 200 of the identification member 10 may have a shape that matches the lens 20. For example, the body 200 of the identification member 10 may have a shape that matches the light incident surface of the lens 20. The so-called light incident surface may be a surface through which the light 40 enters the lens 20.

[0059] For example, if the light incident surface of the lens 20 is a curved surface, the body 200 of the identification element 10 is also a curved surface and the curvature of the body 200 can be adapted to the curvature of the light incident surface.

[0060] During the centering of the lens 20, the identification member 10 may be disposed on the lens 20, for example, the identification member 10 may be attached to the lens 20. Along the direction in which the light 40 extends, the identification portion 100 of the identification member 10 may coincide with the center of the light incident surface of the lens 20.

[0061] The above-mentioned embodiment states that the light 40 passes through the identification member 10 and then reaches the lens 20, but the disclosure is not limited to this. In some embodiments, it can also be set that the light 40 passes through the lens 20 and the identification member 10 in sequence and then enters the camera 300, as long as the image 100-a of the identification part 100 can be seen in the final image 50.

[0062] In such an embodiment, the identification member 10 may be disposed on the other side of the lens 20 along the extension direction of the light 40, for example, between the lens 20 and the camera 300. In such an embodiment, the identification member 10 may be opposite to the light emitting surface of the lens 20. The light emitting surface of the lens 20 may be the surface through which the light 40 leaves the lens 20.

[0063] In some embodiments, the identification member 10 may be disposed on the lens 20, for example, the identification member 10 may be attached to the lens 20. The body 200 of the identification member 10 may have a shape adapted to the lens 20. For example, the body 200 of the identification member 10 may have a shape adapted to the light-emitting surface of the lens 20. Along the direction in which the light 40 extends, the identification portion 100 of the identification member 10 may coincide with the center of the light-emitting surface of the lens 20.

[0064] In some embodiments, the main body 200 of the identification member 10 may also be in contact with both the light emitting surface and the light incident surface of the lens 20 . Along the direction in which the light 40 extends, the identification portion 100 of the identification member 10 may coincide with the center of both the light emitting surface and the light incident surface of the lens 20 .

[0065] like Figure 7 As shown, in some embodiments, the identification member 10 may include a first body 201 and a second body 202. Along the direction in which the light 40 extends (in the direction in which the light passes), the first body 201 and the second body 202 are disposed opposite to each other.

[0066] like Figure 7 As shown, in some embodiments, a first identification portion 101 is disposed at the center of the first body 201, and a second identification portion (not shown) is disposed at the center of the second body 202. In the direction in which the light 40 passes, the center of the first body 201 may coincide with the center of the light incident surface of the lens 20, and the center of the second body 202 may coincide with the center of the light exit surface of the lens 20.

[0067] like Figure 7 As shown, the identification member 10 may cover (or adhere to) the lens 20. The identification member 10 may also include a connecting portion 203, through which the first body 201 and the second body 202 are connected to each other.

[0068] In the present disclosure, the lens 20 may be a relay lens, and the identification member may be a centering mold of the relay lens.

[0069] The identification member 10 may be a circular black cover with a small hole in the top center for light transmission, and a diameter just sufficient to completely cover the relay lens.

[0070] There is no requirement for the material of the identification member 10, as long as it is opaque. The environment during the process of adjusting the alignment of the lens and the camera disclosed in the present invention requires a darkroom environment with a uniform light source.

[0071] Specifically, the center hole of the mold is opposite to the center of the relay lens. When there is a light source, there will be a bright spot in the picture taken by the mobile phone through the relay lens. The algorithm is used to analyze and calculate whether the bright spot is in the center of the picture to determine whether the mobile phone camera is aligned with the relay lens.

[0072] The algorithm for adjusting the alignment of the lens and the camera can be: the intersection of the two diagonal lines of the picture taken by the mobile phone is the center of the picture, and the offset between the center of the picture and the bright spot is calculated using the pinhole imaging principle.

[0073] Figure 8 FIG. 1 is a schematic diagram of a lens centering process according to an exemplary embodiment. Figure 7 and Figure 8 As shown, after the camera 300 of the electronic device 30 takes a photo 50 , the photo is transmitted to the computer 1 to form an information diagram (chart) 60 . The computer 1 can obtain the information in the photo 50 by analyzing the chart 60 .

[0074] Based on the same concept, the present disclosure also provides a method for adjusting the alignment between a lens and a camera. The method for adjusting the alignment between a lens and a camera provided by the present disclosure adopts the identification member 10 in the aforementioned embodiment.

[0075] Fig. 9FIG. 1 is a flow chart showing a method for adjusting the alignment of a lens and a camera according to an exemplary embodiment. Fig. 9 As shown, in the present disclosure, the method for adjusting the alignment between the lens and the camera may include the following steps:

[0076] S11: Acquire a photo of the lens through a camera;

[0077] In step S11, the lens and the identification element are arranged along the optical axis direction of the camera. Figure 3 As shown, along the optical axis direction of the camera (i.e., the direction parallel to the light 40 ), the identification member 10 can be set on the light path of the light 40 irradiating to the lens 20 . For example, the light 40 can pass through the identification member 10 and then irradiate the lens 20 .

[0078] like Figure 6 As shown, in some embodiments, the identification member 10 can be disposed on the lens 20. However, the disclosure is not limited thereto, and in some embodiments, it can also be configured that the light 40 sequentially passes through the lens 20 and the identification member 10 and then enters the camera 300, as long as the image 100-a of the identification portion 100 can be seen in the final image 50.

[0079] In such an embodiment, the identification member 10 may be disposed on the other side of the lens 20 along the extension direction of the light 40, for example, between the lens 20 and the camera 300. In such an embodiment, the identification member 10 may be opposite to the light emitting surface of the lens 20. The light emitting surface of the lens 20 may be the surface through which the light 40 leaves the lens 20.

[0080] S12: Determine whether the center of the lens and the center of the camera coincide with each other along the optical axis by comparing the first center of the photo with the second center of the identification portion in the photo;

[0081] In step S12, as shown in the above-mentioned embodiment, the identification portion 100 may be located at the center of the body of the identification member 10, and details thereof will not be repeated here.

[0082] S13: Based on the fact that the center of the lens along the optical axis direction does not coincide with the center of the camera, the movement of the lens is adjusted, and / or the movement of the camera is adjusted until the center of the lens along the optical axis direction coincides with the center of the camera.

[0083] In the present disclosure, the centering of the camera and the lens described specifically refers to the coincidence of the center of the lens along the optical axis with the center of the camera. If the two coincide, it means that the camera and the lens have been aligned. If the two do not coincide, the camera and the lens are not aligned. It should be noted that in an embodiment, the coincidence of the two and the centering of the two can be considered as the same event. In some embodiments, the coincidence of the two and the centering of the two can also be considered as different events. In this case, a step can be added, that is, judging that the camera and the lens have been aligned based on the coincidence of the center of the lens along the optical axis with the center of the camera. With reference to the description in the aforementioned embodiments, the first center of the photo 50 can be the center A of the photo 50, and the second center of the photo 50 can be the geometric center of the image 100-a of the identification portion 100. In some cases, the image 100-a of the identification portion 100 itself can also be used as the second center of the photo 50.

[0084] If the first center coincides with the second center, it can be considered that the lens 20 and the identification member 10 are aligned. If the first center does not coincide with the second center, it can be considered that the lens 20 and the identification member 10 are not aligned, and then continue to adjust.

[0085] Fig.10 is a flow chart of a method for adjusting the alignment of a lens and a camera according to an exemplary embodiment. Fig.10 As shown, for example, in other embodiments of the present disclosure, the method for adjusting the alignment of the lens and the camera may include the following steps:

[0086] S21: Acquire a photo of the lens through a camera;

[0087] S22: Obtain a first center of the photo, and obtain a geometric center of the logo portion as a second center;

[0088] S23: Determine whether the center of the lens and the center of the camera coincide with each other along the optical axis according to whether the first center and the second center coincide with each other along the optical axis.

[0089] In the present disclosure, the center A of the photo 50 may be an intersection of two diagonal lines L1 + L2 of the photo 50 .

[0090] During the adjustment process, the identification member 10 and the lens 20 may be controlled to move a certain distance in a certain direction, or the camera 300 may be controlled to move a certain distance in a certain direction. Alternatively, the identification member 10 and the lens 20 may be controlled to move a certain distance in a certain direction, and the camera 300 may be controlled to move a certain distance in a certain direction.

[0091] Fig.11 is a flow chart of a method for adjusting the alignment of a lens and a camera according to an exemplary embodiment. Fig.11As shown, for example, in other embodiments of the present disclosure, the method for adjusting the alignment of the lens and the camera may include the following steps:

[0092] S31: Acquire a photo of the lens through a camera;

[0093] S32: obtaining a first center of the photo, and obtaining a geometric center of the logo portion as a second center;

[0094] S33: determining whether the center of the lens coincides with the center of the camera along the optical axis according to whether the first center coincides with the second center;

[0095] S34: acquiring a first relative offset between the first center and the second center based on the coincidence of the center of the lens and the center of the camera along the optical axis direction;

[0096] S35: According to the first relative offset, adjusting the movement of the lens and / or adjusting the movement of the camera until the center of the lens coincides with the center of the camera along the optical axis.

[0097] In the present disclosure, the offset between the first center and the second center can be obtained by using the scale provided at the identification portion 100, or can be obtained by the size of the photo 50, the imaging principle (such as the pinhole imaging principle), etc. It can be observed by the user with the naked eye during operation, or can be obtained by algorithm (centering algorithm) analysis.

[0098] In the present disclosure, the first relative offset between the first center and the second center may include different relative offsets in different directions, for example, an offset on the x-axis, an offset on the y-axis, etc. According to the offsets in different directions, the lens and / or camera is controlled to move in the corresponding direction until it is centered.

[0099] In some embodiments, a photo may be acquired by controlling an electronic device, such as a mobile phone, and using a camera on the electronic device to take a photo. The method for acquiring the photo may include:

[0100] S111: Control the camera center to focus and shoot;

[0101] S112: Acquire photos taken by the camera.

[0102] In the instruction for the electronic device 30 to control the camera 300 to take pictures, a focus instruction can be added. In this case, the photos obtained are clearer, and the offset between the first center and the second center can be more accurately judged, so as to more accurately control the movement of the lens and / or camera in the corresponding direction until it is centered.

[0103] As in the above-mentioned embodiment, the identification member 10 may include a first body 201 and a second body 202. Along the direction in which the light 40 extends (in the direction in which the light passes), the first body 201 and the second body 202 are arranged opposite to each other.

[0104] like Figure 7 As shown, in some embodiments, a first identification portion 101 is disposed at the center of the first body 201, and a second identification portion (not shown) is disposed at the center of the second body 202. In the direction in which the light 40 passes, the center of the first body 201 may coincide with the center of the light incident surface of the lens 20, and the center of the second body 202 may coincide with the center of the light exit surface of the lens 20.

[0105] During the centering process, along the extending direction of the light 40 , if the first identification portion 101 and the second identification portion overlap, it can be indicated that the first identification portion 101 and the second identification portion are both on the optical axis of the camera.

[0106] Fig.12 is a flow chart of a method for adjusting the alignment of a lens and a camera according to an exemplary embodiment. Fig.12 As shown, in some embodiments, the method for adjusting the alignment between the lens and the camera may include the following steps:

[0107] S41: Acquire a photo of the lens through a camera;

[0108] S42: Determine whether the optical axis of the lens is parallel to the direction from the first identification portion to the second identification portion by comparing whether the center of the first identification portion in the photo coincides with the center of the second identification portion;

[0109] S43: adjusting the lens to rotate until the optical axis of the lens is parallel to the direction from the first identification portion to the second identification portion based on the optical axis of the lens being not parallel to the direction from the first identification portion to the second identification portion;

[0110] S44: obtaining a photo of the lens through the camera again;

[0111] S45: Determine whether the center of the lens and the center of the camera coincide with each other along the optical axis by comparing the first center of the photo with the second center of the identification portion;

[0112] S46: Based on the fact that the lens and the camera are not aligned, adjusting the movement of the lens and / or adjusting the movement of the camera until the center of the lens coincides with the center of the camera along the optical axis.

[0113] In the present disclosure, by determining whether the first identification portion 101 and the second identification portion overlap, it is possible to determine whether the first identification portion 101 and the second identification portion are on the optical axis, so that in the subsequent process, it is possible to accurately determine whether the lens is aligned with the camera. Furthermore, when the first identification portion 101 and the second identification portion overlap, that is, when the optical axis is calibrated, the alignment adjustment is continued.

[0114] According to the present disclosure, if the optical axis of the lens is not parallel to the direction from the first identification portion to the second identification portion, the lens rotation is continuously adjusted until they are parallel.

[0115] For example, in some embodiments, lens rotation can be adjusted by:

[0116] S431: acquiring a second relative offset between the center of the first identification portion and the center of the second identification portion based on the fact that the optical axis of the lens is not parallel to the direction from the first identification portion to the second identification portion;

[0117] S432: According to the second relative offset, the lens movement is adjusted until the optical axis of the lens is parallel to the direction from the first identification portion to the second identification portion.

[0118] The second relative offset may include offsets of the first identification portion and the second identification portion in different directions, for example, an offset on the x-axis, an offset on the y-axis, etc. According to the offsets in different directions, the lens is controlled to move in the corresponding direction until the optical axis of the lens is parallel to the direction from the first identification portion 101 to the second identification portion.

[0119] Fig.13 is a flow chart of a method for adjusting the alignment of a lens and a camera according to an exemplary embodiment. Fig.13 As shown, in some embodiments, the method for adjusting the alignment between the lens and the camera may include the following steps:

[0120] S51: Acquire a photo of the lens through a camera;

[0121] S52: Determine whether the center of the lens and the center of the camera coincide with each other along the optical axis by comparing the first center of the photo with the second center of the identification portion;

[0122] S53: Based on the fact that the center of the lens along the optical axis coincides with the center of the camera, obtain the first coordinate of the lens and the second coordinate of the camera. Based on the fact that the lens and the camera are not aligned, adjust the movement of the lens and / or adjust the movement of the camera until the center of the lens along the optical axis coincides with the center of the camera.

[0123] In the present disclosure, if the lens 20 is aligned with the camera 300, the first coordinates of the lens 20 and the second coordinates of the camera 300 are obtained. The first coordinates may include coordinates of the lens 20 in different directions, such as coordinates on the x-axis, coordinates on the y-axis, etc. The second coordinates may include coordinates of the camera 300 in different directions, such as coordinates on the x-axis, coordinates on the y-axis, etc.

[0124] According to the acquired first coordinate and second coordinate, they can be stored in a storage module of the device for adjusting the alignment of the lens and the camera, so that the device can adjust and set the lens and camera of subsequent programs according to the stored coordinates.

[0125] Based on the same concept, the present disclosure also provides a device for adjusting the alignment of a lens and a camera. Fig.14 is a block diagram of a device for adjusting the alignment of a lens and a camera according to an exemplary embodiment. Fig.14 As shown, the device for adjusting the alignment of the lens and the camera disclosed in the present invention may include:

[0126] An acquisition unit 111 is used to acquire a photo of the lens through a camera;

[0127] The judging unit 112 judges whether the center of the lens and the center of the camera coincide with each other along the optical axis by comparing the first center of the photo with the second center of the identification portion in the photo;

[0128] The adjustment unit 113 is used to adjust the movement of the lens and / or the movement of the camera until the center of the lens along the optical axis direction coincides with the center of the camera based on the fact that the center of the lens along the optical axis direction does not coincide with the center of the camera.

[0129] In some embodiments, the judgment unit 112 can judge whether the lens and the camera are aligned by comparing the first center of the photo with the second center of the identification part in the following manner: obtain the first center of the photo, where the first center is the intersection of two diagonals of the photo, and obtain the geometric center of the identification part as the second center; judge whether the center of the lens and the center of the camera along the optical axis direction coincide with each other based on whether the first center and the second center coincide with each other along the optical axis direction.

[0130] In some embodiments, the adjustment unit 113 can adjust the lens movement and / or adjust the camera movement until the center of the lens along the optical axis direction coincides with the center of the camera based on the fact that the center of the lens along the optical axis direction coincides with the center of the camera in the following manner: based on the fact that the center of the lens along the optical axis direction coincides with the center of the camera, obtain a first relative offset between the first center and the second center; according to the first relative offset, adjust the lens movement and / or adjust the camera movement until the center of the lens along the optical axis direction coincides with the center of the camera.

[0131] In some embodiments, the acquisition unit 111 may acquire the photo of the lens through the camera in the following manner: controlling the center of the camera to focus and take photos; and acquiring the photo taken by the camera.

[0132] In some embodiments, the judgment unit 112 is also used to: judge whether the optical axis of the lens is parallel to the direction from the first identification portion to the second identification portion by comparing whether the center of the first identification portion in the photo coincides with the center of the second identification portion; the adjustment unit is also used to adjust the lens rotation until it is parallel based on the fact that the optical axis of the lens is not parallel to the direction from the first identification portion to the second identification portion.

[0133] In some embodiments, the adjustment unit 113 adjusts the rotation of the lens until it is parallel to the direction from the first identification portion to the second identification portion based on the fact that the optical axis of the lens is not parallel to the direction from the first identification portion to the second identification portion in the following manner: based on the fact that the optical axis of the lens is not parallel to the direction from the first identification portion to the second identification portion, obtains a second relative offset between the center of the first identification portion and the center of the second identification portion; and according to the second relative offset, adjusts the movement of the lens until the optical axis of the lens is parallel to the direction from the first identification portion to the second identification portion.

[0134] In some embodiments, the acquisition unit 111 is further used to acquire the first coordinate of the lens and the second coordinate of the camera based on the coincidence of the center of the lens and the center of the camera along the optical axis direction.

[0135] In the present disclosure, for the identification member used for centering adjustment of the lens, an identification portion is provided on the identification member, the identification portion is located at the center of the body and is configured to allow light to pass through. With such a configuration, the lens can be centered by utilizing the distance difference between the light passing through the identification portion and the center of the lens during the lens centering process.

[0136] Fig.15 FIG. 1 is a flow chart showing a method for adjusting the alignment of a lens and a camera according to an exemplary embodiment. Fig.15 As shown, taking the method of centering the camera of a mobile phone as an example, the following method can be used:

[0137] Cover the mold on the relay lens, with the hole in the center of the mold facing the center of the relay lens, and then turn on the light source board;

[0138] Place the mobile phone on the carrier of the test channel, with the camera positioned below the relay mirror;

[0139] Call the shooting command of the camera corresponding to the current test item on the mobile phone to make the mobile phone take pictures. The image will have a bright spot where the light source passes through the center hole of the mold;

[0140] Call the centering algorithm to calculate whether the bright spot is in the center of the picture. If it is, output the coordinates to the software platform. The software platform controls the mobile relay mirror (y-axis) and the mobile phone carrier (x-axis) to the specified coordinates, and the centering is completed. If it is not in the center of the picture, calculate the offset and output it to the software platform. The software platform controls the mobile relay mirror (y-axis) and the mobile phone carrier (x-axis) to move the offset, then take the picture again, and repeat the above-mentioned related operations until the centering is completed.

[0141] The electronic devices involved in the present disclosure may also be referred to as terminal devices, user equipment (UE), mobile stations (MS), mobile terminals (MT), etc., which are devices that provide voice and / or data connectivity to users. For example, the terminal may be a handheld device with wireless connection function, a vehicle-mounted device, etc. At present, some examples of terminals are: smart phones (Mobile Phone), pocket computers (Pocket Personal Computer, PPC), PDAs, personal digital assistants (Personal Digital Assistant, PDA), laptops, tablet computers, wearable devices, or vehicle-mounted devices, etc. In addition, when it is a vehicle-to-everything (V2X) communication system, the terminal device may also be a vehicle-mounted device. It should be understood that the embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal.

[0142] It is understandable that in order to achieve the above functions, the lens adjustment and camera centering device provided in the embodiments of the present disclosure includes hardware structures and / or software modules corresponding to the execution of each function. In combination with the units and algorithm steps of the various examples disclosed in the embodiments of the present disclosure, the embodiments of the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of the technical solution of the embodiments of the present disclosure.

[0143] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0144] Fig.16 800 is a block diagram of an apparatus 800 according to an exemplary embodiment. For example, the apparatus 800 may be an electronic device as described above, specifically a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0145] Reference Fig.16 , the device 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0146] The processing component 802 generally controls the overall operation of the device 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0147] The memory 804 is configured to store various types of data to support operations on the device 800. Examples of such data include instructions for any application or method operating on the device 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0148] The power component 806 provides power to the various components of the device 800. The power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 800.

[0149] The multimedia component 808 includes a screen that provides an output interface between the device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0150] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), and when the device 800 is in an operating mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 804 or sent via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0151] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0152] The sensor assembly 814 includes one or more sensors for providing various aspects of the status assessment of the device 800. For example, the sensor assembly 814 can detect the open / closed state of the device 800, the relative positioning of components, such as the display and keypad of the device 800, and the sensor assembly 814 can also detect the position change of the device 800 or a component of the device 800, the presence or absence of user contact with the device 800, the orientation or acceleration / deceleration of the device 800, and the temperature change of the device 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0153] The communication component 816 is configured to facilitate wired or wireless communication between the device 800 and other devices. The device 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0154] In an exemplary embodiment, the apparatus 800 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to perform the above method.

[0155] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, and the instructions can be executed by the processor 820 of the device 800 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0156] It is to be understood that in the present disclosure, "plurality" refers to two or more than two, and other quantifiers are similar. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship. The singular forms "a", "the" and "the" are also intended to include plural forms, unless the context clearly indicates other meanings.

[0157] It is further understood that the terms "first", "second", etc. are used to describe various information, but such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other, and do not indicate a specific order or degree of importance. In fact, the expressions "first", "second", etc. can be used interchangeably. For example, without departing from the scope of the present disclosure, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information.

[0158] It will be further understood that the terms “center”, “longitudinal”, “lateral”, “front”, “back”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present embodiment and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0159] It can be further understood that, unless otherwise specified, “connection” includes a direct connection without other components between the two, and also includes an indirect connection with other components between the two.

[0160] It is further understood that, although the operations are described in a specific order in the drawings in the embodiments of the present disclosure, it should not be understood as requiring the operations to be performed in the specific order shown or in a serial order, or requiring the execution of all the operations shown to obtain the desired results. In certain environments, multitasking and parallel processing may be advantageous.

[0161] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0162] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A marking component, characterized in that: Used for lens centering adjustment, including: A body, wherein the body is a rotating body with the optical axis of the lens as the center; and The marking portion is located at the center of the body and allows light to pass through.

2. The identification element according to claim 1, characterized in that: The marking portion is provided with scales.

3. The identification element according to claim 1, characterized in that: The main body is a low light transmittance portion, and the logo portion is hollow.

4. The identification element according to claim 2, characterized in that: The marking portion is in one of a hole shape, a linear distribution shape, and a surface distribution shape.

5. The identification element according to claim 1, characterized in that: The body includes a light shielding portion, and a light transmittance of the light shielding portion is smaller than a light transmittance of the logo portion.

6. The identification element according to claim 5, characterized in that: The light shielding portion includes black paint or black dye.

7. The identification element according to claim 1, characterized in that: The body has a shape that matches the light incident surface of the lens; and / or The body has a shape that matches the light-emitting surface of the lens.

8. The identification element according to claim 7, characterized in that: The identification element includes a first body and a second body arranged opposite to each other in the direction in which the light passes. A first identification portion is disposed at the center of the first body, and a second identification portion is disposed at the center of the second body.

9. A method for adjusting the alignment of a lens and a camera, characterized in that: The method comprises: Acquire a photo of the lens through the camera, wherein the lens and the identification element are arranged along the optical axis direction of the camera; By comparing the first center of the photo with the second center of the identification part in the photo, it is determined whether the center of the lens and the center of the camera coincide with each other along the optical axis, wherein the identification part is located at the center of the body of the identification part; Based on the fact that the center of the lens along the optical axis direction does not coincide with the center of the camera, the movement of the lens is adjusted, and / or the movement of the camera is adjusted until the center of the lens along the optical axis direction coincides with the center of the camera.

10. The method for adjusting the alignment of a lens and a camera according to claim 9, characterized in that: By comparing the first center of the photo with the second center of the identification portion in the photo, determining whether the center of the lens coincides with the center of the camera along the optical axis direction, including: Obtaining a first center of the photo, wherein the first center is the intersection of two diagonals of the photo, and obtaining a geometric center of the logo portion as the second center; Whether the center of the lens coincides with the center of the camera along the optical axis direction is determined based on whether the first center coincides with the second center along the optical axis direction.

11. The method for adjusting the alignment of a lens and a camera according to claim 10, characterized in that: The adjusting the movement of the lens and / or the movement of the camera until the center of the lens and the center of the camera coincide with each other in the direction of the optical axis based on the fact that the center of the lens and the center of the camera do not coincide with each other in the direction of the optical axis comprises: Based on the fact that the center of the lens along the optical axis direction does not coincide with the center of the camera, obtaining a first relative offset between the first center and the second center; According to the first relative offset, the movement of the lens is adjusted, and / or the movement of the camera is adjusted until the center of the lens coincides with the center of the camera along the optical axis direction.

12. The method for adjusting the alignment of a lens and a camera according to claim 9, characterized in that: The obtaining of a photo of the lens by the camera comprises: Control the camera to focus and shoot; Get the photos taken by the camera.

13. The method for adjusting the alignment of a lens and a camera according to claim 9, characterized in that: The method further comprises: By comparing whether the center of the first identification part in the photo coincides with the center of the second identification part, determining whether the optical axis of the lens is parallel to the direction from the first identification part to the second identification part; Based on the fact that the optical axis of the lens is not parallel to the direction from the first identification portion to the second identification portion, the lens is adjusted to rotate until they are parallel.

14. The method for adjusting the alignment of a lens and a camera according to claim 13, characterized in that: The adjusting the lens to rotate until the optical axis of the lens is parallel to the direction from the first identification portion to the second identification portion based on the optical axis of the lens is not parallel to the direction from the first identification portion to the second identification portion comprises: acquiring a second relative offset between a center of the first marking portion and a center of the second marking portion based on the fact that an optical axis of the lens is not parallel to a direction from the first marking portion to the second marking portion; According to the second relative offset, the lens movement is adjusted until the optical axis of the lens is parallel to the direction from the first marking portion to the second marking portion.

15. The method for adjusting the alignment of a lens and a camera according to claim 9, characterized in that: The method further comprises: Based on the coincidence of the center of the lens and the center of the camera along the optical axis direction, the first coordinate of the lens and the second coordinate of the camera are acquired.

16. A device for adjusting the alignment of a lens and a camera, characterized in that: include: An acquisition unit, which acquires a photo of the lens through the camera, wherein the lens and the identification member are arranged along the optical axis direction of the camera; a judgment unit, configured to judge whether the center of the lens coincides with the center of the camera along the optical axis by comparing a first center of the photo with a second center of the identification portion in the photo, wherein the identification portion is located at the center of the body of the identification member; An adjustment unit is used to adjust the movement of the lens and / or the movement of the camera until the center of the lens along the optical axis direction coincides with the center of the camera based on the fact that the center of the lens along the optical axis direction does not coincide with the center of the camera.

Images