Time-sharing lighting system

Abstract

The utility model discloses a time-sharing illumination system, which comprises an image capturing assembly used for acquiring images, an array light source matched with the image capturing assembly, and a controller used for driving the array light source, the array light source comprises at least two different light emitting angles, and the controller can control the array light source to emit light at any light emitting angle; the image capturing assembly can be controlled to perform exposure and image capturing on a measured object when the array light source emits light at each light emitting angle. According to the time-sharing illumination system, the array light source can be controlled to emit light at any angle through the controller, and the image taking assembly can be matched to complete exposure image taking of the measured object. Therefore, the time-sharing illumination system provided by the utility model can realize multi-angle illumination of the measured object, and can accurately complete exposure image taking through the cooperation of the controller and the array light source.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lighting device technical field, specifically about a time-sharing lighting system. BACKGROUND

[0002] In the industrial surface detection scene, how to present the defects on the surface of the object through a specific lighting system is a very important topic. Commonly used are high-angle lighting, low-angle lighting, bright field lighting and dark field lighting, etc. However, in many cases, the characteristics of the defects need to be illuminated in different directions at the same time to achieve the desired effect. The light direction of the ordinary strip light bead is perpendicular downward, and the illumination direction is single, and only the angle of the light source as a whole can be adjusted to control the illumination direction of the light source.

[0003] Therefore, in the actual industrial surface detection scene, especially in the online scanning detection scene, the light direction can be adjusted by adjusting the position of the light source to obtain the photos of the measured object under different light directions. However, in the above-mentioned manner, since the position of the light source needs to be adjusted multiple times, the operation steps are many and the detection efficiency is low.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a time-sharing lighting system. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a time-sharing lighting system, which can solve the problem of low detection efficiency caused by multiple adjustments of the position of the light source.

[0006] In order to achieve the above-mentioned purpose, the technical scheme provided by a specific embodiment of the utility model is as follows:

[0007] A time-sharing lighting system, comprising an image acquisition component for acquiring images, an array light source cooperatively installed with the image acquisition component, and a controller for driving the array light source;

[0008] The array light source comprises at least two different light emitting angles, and the controller can control the array light source to emit light at any of the light emitting angles; the image acquisition component can be controlled to expose and take pictures of the measured object when the array light source emits light at each light emitting angle.

[0009] In one or more embodiments of the utility model, the time-sharing lighting system further comprises an adjusting plate cooperatively connected with the array light source, and the array light source is adjustably connected to at least two mounting positions of the adjusting plate; when the array light source is connected to different mounting positions of the adjusting plate, the array light source can illuminate different positions of the measured object.

[0010] In one or more embodiments of the utility model, the adjusting plate is provided with parallel first arc-shaped mounting slots and second arc-shaped mounting slots, and the array light source comprises first mounting reference points and second mounting reference points.

[0011] When the array light source is connected to different mounting positions of the adjusting plate, the first mounting reference points correspond to different slot positions of the first arc-shaped mounting slots, and the second mounting reference points correspond to different slot positions of the second arc-shaped mounting slots.

[0012] In one or more embodiments of the utility model, the difference between the radii of the first arc-shaped mounting slots and the second arc-shaped mounting slots is equal to the distance between the first mounting reference points and the second mounting reference points; and / or,

[0013] The straight line where the connecting line of the first mounting reference points and the second mounting reference points passes through the center of the arc line corresponding to the first arc-shaped mounting slots or the second arc-shaped mounting slots.

[0014] In one or more embodiments of the utility model, the time-sharing lighting system comprises two array light sources, and in the overhead direction of the time-sharing lighting system, the two array light sources are arranged on the two sides of the image-taking assembly.

[0015] In one or more embodiments of the utility model, the two array light sources are both mounted in cooperation with the adjusting plate, and two groups of the first arc-shaped mounting slots and the second arc-shaped mounting slots corresponding to the two array light sources are symmetrically arranged; and / or,

[0016] The image-taking assembly comprises a strip-shaped camera end, the array light source is arranged in a strip shape, and the length direction of the at least two light sources is parallel to the length direction of the camera end.

[0017] In one or more embodiments of the utility model, the time-sharing lighting system further comprises a light-shielding plate arranged in cooperation with the image-taking assembly, and the light-shielding plate and the adjusting plate enclose a mounting space for accommodating the array light source.

[0018] In one or more embodiments of the utility model, the array light source comprises a substrate, the substrate comprises a plurality of array-arranged first mounting sites and second mounting sites, the first mounting sites and the second mounting sites are arranged in an intersecting and spaced manner, a first light-emitting element is mounted on the first mounting site, and a second light-emitting element is mounted on the second mounting site.

[0019] The first mounting site is arranged in a non-parallel manner with the extension plane of the substrate, so that a plurality of the first light-emitting elements emit light at a first predetermined angle of a non-right angle relative to the extension plane of the substrate.

[0020] The second mounting position is arranged non-parallel to the extension plane of the substrate, so that the plurality of second light emitting elements emit light at a second predetermined angle which is not a right angle relative to the extension plane of the substrate, and the light emitting directions of the first light emitting elements and the second light emitting elements are non-parallel.

[0021] In one or more embodiments of the present application, the first predetermined angle and the second predetermined angle are both 45°.

[0022] In one or more embodiments of the present application, the substrate comprises a plate-shaped extension body and a plurality of pedestals arranged on the body, the plurality of pedestals are arranged in a linear array, and each of the pedestals is provided with the first mounting position and the second mounting position, and the light emitting paths of the first light emitting elements and the second light emitting elements on each of the pedestals do not interfere with each other.

[0023] Compared with the prior art, in the time-sharing lighting system of the present application, the array light source can be controlled to emit light at any angle by the controller, and the imaging assembly can cooperate to complete the exposure imaging of the measured object. Therefore, the time-sharing lighting system of the present application can realize multi-angle lighting of the measured object, and through the cooperation of the controller and the array light source, the exposure imaging can be accurately completed. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0025] Figure 1 It is an embodiment of the time-sharing lighting system of the present application.

[0026] Figure 2 It is an embodiment of the time-sharing lighting system of the present application.

[0027] Figure 3 It is an embodiment of the time-sharing lighting system of the present application.

[0028] Figure 4 It is an embodiment of the time-sharing lighting system of the present application.

[0029] Figure 5 It is Figure 4 the enlarged schematic view of A in FIG.

[0030] MAIN REFERENCE NUMERALS:

[0031] 1, image taking assembly; 2, array light source; 21, housing; 22, base plate; 221, body part; 222, base; 23, first light emitting element; 24, second light emitting element; 25, first mounting reference point; 26, second mounting reference point; 3, adjusting plate; 31, first arc-shaped mounting slot; 32, second arc-shaped mounting slot; 4, light shielding plate. DETAILED DESCRIPTION

[0032] In order to make the technical personnel in the technical field better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0033] With reference to Figure 1 and Figure 2 , the time-sharing lighting system in an embodiment of the present application comprises an image taking assembly 1 for acquiring images, an array light source 2 cooperatively installed with the image taking assembly 1, and a controller for driving the array light source 2; the array light source 2 comprises at least two different light emitting angles, and the controller can control the array light source 2 to emit light at any light emitting angle; the image taking assembly 1 can be controlled to expose and take images of the measured object when the array light source 2 emits light at each light emitting angle. Therefore, when exposing and taking images of the measured object, the light emitting angle of the array light source 2 can be driven by the controller to cooperatively realize multi-angle lighting, thereby accurately completing exposure and taking images.

[0034] With reference to Figure 2 , the image taking assembly 1 in the embodiment takes a line-scan camera as an example, which can perform image acquisition after receiving signals. It can be understood that in other embodiments, the image taking assembly 1 can also be other types of cameras.

[0035] With reference to Figure 2 , the time-sharing lighting system of the embodiment further comprises an adjusting plate 3 cooperatively connected with the array light source 2, and the array light source 2 is adjustably connected to at least two mounting positions of the adjusting plate 3; when the array light source 2 is connected to different mounting positions of the adjusting plate 3, the array light source 2 can illuminate different positions of the measured object. Therefore, in actual use, the connection position of the array light source 2 on the adjusting plate 3 can be adjusted according to actual needs, so that the array light source 2 can illuminate different positions of the measured object at corresponding illumination angles, thereby improving the convenience and adaptability of the time-sharing lighting system of the embodiment.

[0036] With reference to Figure 2The time-sharing illumination system of the embodiment includes two array light sources 2, which are arranged on the two sides of the image-taking assembly 1 in the overhead direction of the time-sharing illumination system. In the embodiment, two light-emitting angles are provided for the array light source 2, which is not a limitation on the number of light-emitting angles of the array light source 2 in the embodiment. Therefore, the two array light sources 2 in the embodiment can realize the illumination of four directions of the measured object respectively, so as to ensure the accurate exposure and image taking of the measured object.

[0037] With reference to Figure 2 and Figure 3 , the adjusting plate 3 is provided with parallel first arc-shaped mounting grooves 31 and second arc-shaped mounting grooves 32, and the array light source 2 includes a first mounting reference point 25 and a second mounting reference point 26; when the array light source 2 is connected to different mounting positions of the adjusting plate 3, the first mounting reference point 25 corresponds to different groove positions of the first arc-shaped mounting grooves 31, and the second mounting reference point 26 corresponds to different groove positions of the second arc-shaped mounting grooves 32. In the embodiment, the difference between the radii of the first arc-shaped mounting grooves 31 and the second arc-shaped mounting grooves 32 is equal to the distance between the first mounting reference point 25 and the second mounting reference point 26; and the straight line where the connecting line of the first mounting reference point 25 and the second mounting reference point 26 is located passes through the center of the arc where the first arc-shaped mounting grooves 31 or the second arc-shaped mounting grooves 32 is located.

[0038] Therefore, the first arc-shaped mounting grooves 31, the second arc-shaped mounting grooves 32, the first mounting reference point 25 and the second mounting reference point 26 can adjust the position of the array light source 2 on the mounting plate in the direction of the arc-shaped groove, and also make the light-emitting surface of the array light source 2 face the measured object, so as to ensure the exposure and image taking effect of the image-taking assembly 1.

[0039] With reference to Figure 2 and Figure 3 , the two array light sources 2 are mounted in cooperation with the adjusting plate 3, and the two groups of first arc-shaped mounting grooves 31 and second arc-shaped mounting grooves 32 corresponding to the two array light sources 2 are symmetrically arranged. The image-taking assembly 1 includes a strip-shaped camera end, and the array light source 2 is arranged in a strip shape, and the length direction of at least two light sources is parallel to the length direction of the camera end. The two groups of first arc-shaped mounting grooves 31 and second arc-shaped mounting grooves 32 can ensure that the two array light sources 2 are symmetrically arranged, so as to complete the symmetric light distribution of the measured object. The shape of the array light source 2 cooperates with the shape of the camera end of the image-taking assembly 1, so as to ensure that the measured object is effectively illuminated.

[0040] With reference to Figure 2 , the time-sharing illumination system of the embodiment further includes a light-shielding plate 4 arranged in cooperation with the image-taking assembly 1, and the light-shielding plate 4 and the adjusting plate 3 enclose a mounting space for accommodating the array light source 2. The light-shielding plate 4 can reduce the interference of other external light sources on the array light source 2 of the system.

[0041] For example, two adjusting plates 3 can be arranged, and the two ends of the array light source 2 are connected with the two adjusting plates 3 respectively. Two light shielding plates 4 can also be arranged, and the two light shielding plates 4 are connected with the adjusting plates 3 and the image taking assembly 1 respectively, so that the mounting space for accommodating the array light source 2 can be formed by the two light shielding plates 4 and the two adjusting plates 3.

[0042] With reference to Figure 2 and Figure 4 The array light source 2 comprises a housing 21 and a substrate 22 mounted in the housing 21. The substrate 22 comprises a plurality of first mounting positions and second mounting positions arranged in an array. The first mounting positions and the second mounting positions are arranged in an intersecting and spaced manner. The first mounting positions are provided with first light emitting elements 23, and the second mounting positions are provided with second light emitting elements 24. The first light emitting elements 23 and the second light emitting elements 24 can be selected from related light emitting elements such as LED lamps.

[0043] The first mounting positions are arranged in a non-parallel manner with the extension plane of the substrate 22, so that the plurality of first light emitting elements 23 emit light at a first predetermined angle which is not a right angle relative to the extension plane of the substrate 22. The second mounting positions are arranged in a non-parallel manner with the extension plane of the substrate 22, so that the plurality of second light emitting elements 24 emit light at a second predetermined angle which is not a right angle relative to the extension plane of the substrate 22, and the light emitting directions of the first light emitting elements 23 and the second light emitting elements 24 are non-parallel.

[0044] The first predetermined angle is an acute angle formed between the light emitting direction of the first light emitting elements 23 and the extension plane of the substrate 22. The second predetermined angle is an acute angle formed between the light emitting direction of the second light emitting elements 24 and the extension plane of the substrate 22. The first light emitting elements 23 and the second light emitting elements 24 can be selected from related light emitting elements such as LED lamps. In this embodiment, the first predetermined angle and the second predetermined angle are both 45°, which is only an exemplary illustration and does not represent a limitation on the light emitting angles of the light emitting elements of the present application. The first predetermined angle and the second predetermined angle being both 45° can ensure accurate exposure of the measured object at different angles.

[0045] In this embodiment, by arranging the first mounting positions, the first light emitting elements 23, the second mounting positions and the second light emitting elements 24, the array light source 2 in this embodiment can have different light emitting directions in a limited mounting space to meet different light illumination direction requirements. At the same time, by arranging the first mounting positions in a non-parallel manner with the extension plane of the substrate 22, the light source has the ability to emit light in a non-right angle direction. Therefore, the array light source 2 of the present application can realize a non-right angle light emitting direction in a limited mounting space, thereby better adapting to various complex and narrow installation environments. Further, the array light source 2 has different light emitting angles, which can also reduce the overall volume of the time-sharing illumination system of the present application.

[0046] With reference to Figure 4 andFigure 5 The substrate 22 comprises a plate-shaped extending body part 221 and a plurality of pedestals 222 arranged on the body part 221, the plurality of pedestals 222 are linearly arranged, a first mounting position and a second mounting position are arranged on any pedestal 222 correspondingly, the light emitting path of the first light emitting element 23 and the second light emitting element 24 on any pedestal 222 does not interfere with the adjacent pedestal 222, so as to ensure that the first light emitting element 23 and the second light emitting element 24 can effectively illuminate the measured object.

[0047] It can be understood that the extension plane of the substrate 22 described above can be understood as the plane defined by the extension direction of the body part 221. And the distance between the adjacent two pedestals 222 can be reasonably arranged, so that the light emitting path of the first light emitting element 23 does not interfere with the adjacent pedestal 222. The shape of the pedestal 222 or the angle value of the first predetermined angle can also be arranged so that the light emitting path of the first light emitting element 23 does not interfere with the adjacent pedestal 222.

[0048] Therefore, the time-sharing illumination system of the utility model can realize multi-angle illumination, has the advantages of small size, and can effectively and accurately realize exposure and image taking of the measured object.

[0049] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims.

[0050] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A time-sharing lighting system, characterized by, The image acquisition device comprises an image acquisition assembly (1), an array light source (2) installed in cooperation with the image acquisition assembly (1), and a controller for driving the array light source (2); The array light source (2) comprises at least two different light emitting angles, and the controller can control the array light source (2) to emit light at any of the light emitting angles; the image acquisition assembly (1) can be controlled to expose and take images of the measured object when the array light source (2) emits light at each light emitting angle.

2. The time-sharing illumination system according to claim 1, characterized in that, Further comprising an adjusting plate (3) connected in cooperation with the array light source (2), and the array light source (2) is adjustably connected to at least two installation positions of the adjusting plate (3), and when the array light source (2) is connected to different installation positions of the adjusting plate (3), the array light source (2) can illuminate different positions of the measured object.

3. The time-sharing illumination system according to claim 2, characterized in that, The adjusting plate (3) is provided with parallel first arc-shaped installation grooves (31) and second arc-shaped installation grooves (32), and the array light source (2) comprises first installation reference points (25) and second installation reference points (26); When the array light source (2) is connected to different installation positions of the adjusting plate (3), the first installation reference points (25) correspond to different groove positions of the first arc-shaped installation grooves (31), and the second installation reference points (26) correspond to different groove positions of the second arc-shaped installation grooves (32).

4. The time-of-flight illumination system of claim 3, wherein, The difference between the radii of the first arc-shaped installation grooves (31) and the second arc-shaped installation grooves (32) is equal to the distance between the first installation reference points (25) and the second installation reference points (26); and / or, The straight line where the connecting line of the first installation reference points (25) and the second installation reference points (26) passes through the center of the arc corresponding to the first arc-shaped installation grooves (31) or the second arc-shaped installation grooves (32).

5. The time-sharing illumination system according to claim 3, characterized in that, The time-sharing illumination system comprises two array light sources (2), and in the overhead direction of the time-sharing illumination system, the two array light sources (2) are separately arranged on the two sides of the image acquisition assembly (1).

6. The time-of-flight illumination system of claim 3, wherein, The two array light sources (2) are installed in cooperation with the adjusting plate (3), and two groups of the first arc-shaped installation grooves (31) and the second arc-shaped installation grooves (32) corresponding to the two array light sources (2) are symmetrically arranged; and / or, The image acquisition assembly (1) comprises a strip-shaped camera end, and the array light source (2) is arranged in a strip shape, and the length direction of the at least two light sources is parallel to the length direction of the camera end.

7. The time-sharing illumination system according to claim 2, characterized in that, Further comprising a light shielding plate (4) arranged in cooperation with the image acquisition assembly (1), and the light shielding plate (4) and the adjusting plate (3) enclose an installation space for accommodating the array light source (2).

8. The time-of-flight illumination system of claim 1, wherein, The array light source (2) comprises a substrate (22), and the substrate (22) comprises a plurality of first installation sites and second installation sites arranged in an array, the first installation sites and the second installation sites are arranged in an intersecting and spaced manner, a first light emitting element (23) is installed on the first installation site, and a second light emitting element (24) is installed on the second installation site; The first mounting position is arranged non-parallel to the extension plane of the substrate (22) so that the first light emitting elements (23) emit light at a first predetermined angle which is not a right angle relative to the extension plane of the substrate (22). The second mounting position is arranged non-parallel to the extension plane of the substrate (22) so that the second light emitting elements (24) emit light at a second predetermined angle which is not a right angle relative to the extension plane of the substrate (22), and the light emitting directions of the first light emitting elements (23) and the second light emitting elements (24) are non-parallel.

9. The time-of-flight illumination system of claim 8, wherein, The first predetermined angle and the second predetermined angle are both 45°.

10. The time-of-flight illumination system of claim 8, wherein, The substrate (22) comprises a plate-shaped body (221) and a plurality of pedestals (222) arranged on the body (221), the plurality of pedestals (222) are arranged in a linear array, and each of the pedestals (222) is provided with the first mounting position and the second mounting position, and the light emitting paths of the first light emitting elements (23) and the second light emitting elements (24) on each of the pedestals (222) do not interfere with the adjacent pedestals (222).

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