Multi-angle combined light source device and detection system

Abstract

The utility model discloses a multi-angle combined light source device and a detection system. The multi-angle combined light source device comprises a device bottom shell, a first light source module, a second light source module, a first oblique triangular prism and a second oblique triangular prism, a concave groove is formed in the device bottom shell, and a first light source module and a first oblique triangular prism are oppositely arranged on the two sides of the concave groove in the first direction respectively; the first direction is perpendicular to the second direction, and a second light source module and a second oblique triangular prism are oppositely arranged on the two sides of the concave groove in the second direction respectively. First light rays emitted by the first light source module penetrate through the concave groove and then are transmitted to the first oblique triangular prism, second light rays emitted by the second light source module penetrate through the concave groove and then are transmitted to the second oblique triangular prism, and the direction of the first light rays is perpendicular to the direction of the second light rays. The method has the beneficial effects that on one hand, an omnibearing light supplementing effect is provided for the detected object, and on the other hand, more comprehensive illumination support is provided for detecting a more accurate view.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of light source device, especially a multi-angle combined light source device and detection system. BACKGROUND

[0002] In the process of machine vision detection, the effect of the light source device is an important link, and a suitable light source device can provide good light supplementing and illumination effect for machine vision detection. However, the light source device in the prior art often has many deficiencies, resulting in unsatisfactory light supplementing and illumination effect, which ultimately affects the actual effect of machine vision detection.

[0003] In a relatively ideal machine vision detection environment, on the one hand, the light source corresponding to the light source device can not only provide full-range light supplementing effect for the "measured object", but on the other hand, it can also provide multi-angle light supplementing for the lens and camera, and better supplement light to machine vision in microstructure display light supplementing detection, so as to detect more accurate views and further understand the surface state of the measured object. Therefore, it is necessary to design a multi-angle combined light source device and detection system to solve the above technical problems. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is how to design a multi-angle combined light source solution, which has the technical effect of providing full-range light supplementing effect for the measured object and providing more comprehensive light support for detecting more accurate views.

[0005] Based on this, the application provides a multi-angle combined light source device and detection system, which utilizes the characteristics of light emission and light rays to meet the ideal state of light source use requirements, and specifically includes the following contents.

[0006] First, simulation optics: according to the light supplementing requirements of the use scene and the measured object, a "multi-angle light source" is designed, and then several groups of inclined triangular prisms are designed to refract and reflect light, so as to better provide light rays to the measured object and machine vision.

[0007] Second, structure design: according to the light supplementing requirements, several groups of light sources are formed around the measured object to provide multi-angle light rays to the measured object and machine vision, so as to better measure the overall appearance of the measured object.

[0008] Third, design the bottom shell: according to the light emission requirements of the light source, two groups of light sources are designed on the bottom shell, and then a matching inclined triangular prism is designed on the opposite side of the measured object, and the light rays are reflected and refracted by the inclined triangular prism to provide light rays to the measured object and machine vision from another angle.

[0009] In a first aspect, embodiments of this application propose a multi-angle combined light source device. The device is used to emit light towards a test object to detect the surface state of the test object. The multi-angle combined light source device includes: a device base shell, a first light source module, a second light source module, a first oblique triangular prism, and a second oblique triangular prism. The device base shell is provided with a recessed groove. The first light source module and the first oblique triangular prism are respectively arranged facing each other on both sides of the recessed groove along a first direction. The first direction is perpendicular to a second direction. The second light source module and the second oblique triangular prism are respectively arranged facing each other on both sides of the recessed groove along the second direction. A first light ray emitted by the first light source module passes through the recessed groove and is transmitted to the first oblique triangular prism. A second light ray emitted by the second light source module passes through the recessed groove and is transmitted to the second oblique triangular prism. The direction of the first light ray is perpendicular to the direction of the second light ray.

[0010] A further technical solution is that the multi-angle combined light source device also includes an upper shell, which is connected to the bottom shell from top to bottom.

[0011] A further technical solution is that the upper shell of the device is provided with a through opening, which penetrates the first oblique triangular prism and the second oblique triangular prism from top to bottom. The through opening also penetrates the geometric center of the bottom shell of the device from top to bottom. The first light ray passes through the through opening from bottom to top after being refracted by the first oblique triangular prism, and the second light ray passes through the through opening from bottom to top after being refracted by the second oblique triangular prism.

[0012] A further technical solution is that the bottom shell of the device includes a first fixed area and a second fixed area, the first light source module includes a first lamp board and a first diffuser board, the first lamp board and the first diffuser board are arranged in parallel in the first fixed area, and the second light source module includes a second lamp board and a second diffuser board, the second lamp board and the second diffuser board are arranged in parallel in the second fixed area.

[0013] A further technical solution is that the device and the object to be tested are both placed on a platform, and the bottom of the recessed groove is provided with a strip-shaped opening. The projection of the first light and the projection of the second light pass through the strip-shaped opening and are projected onto the platform to form a placement area.

[0014] A further technical solution is that the overlapping portion of the object being tested and the placement area on the platform occupies more than half of the bottom area of ​​the object being tested; the first light ray passes through the object being tested after being reflected by the first oblique triangular prism, and the second light ray passes through the object being tested after being reflected by the second oblique triangular prism.

[0015] A further technical solution is that the tilt angle between the inclined surface of the first oblique triangular prism and the stage is 45 degrees, and the tilt angle between the inclined surface of the second oblique triangular prism and the stage is also 45 degrees.

[0016] A further technical solution is that the multi-angle combined light source device also includes a power cord, which supplies power to the first lamp panel and the second lamp panel.

[0017] Secondly, embodiments of this application propose a detection system for detecting the surface state of a test object, wherein the test object is irradiated by light from a multi-angle combined light source device, and the detection system includes the multi-angle combined light source device as described in the first aspect.

[0018] In summary, in a relatively ideal machine vision inspection environment, the light source device can not only provide all-round supplementary lighting for the "object under test," but also provide multi-angle supplementary lighting for the lens and camera, thus better supplementing the lighting for microstructure display supplementary lighting detection, thereby detecting a more accurate view and further understanding the surface state of the object under test. Based on this, this application proposes a multi-angle combined light source device and detection system, which utilizes the characteristics of light emission and light to achieve the ideal light source usage requirements. Its technical effect is that it provides all-round supplementary lighting for the object under test and provides more comprehensive illumination support for detecting a more accurate view. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Fig. 1 This is an overall structural diagram of the multi-angle combined light source device proposed in this utility model.

[0021] Fig. 2 This is another overall structural diagram of the multi-angle combined light source device proposed in this utility model.

[0022] Fig. 3 This is a schematic diagram of the light direction of the multi-angle combined light source device proposed in this utility model. Detailed Implementation

[0023] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Similar component reference numerals in the drawings represent similar components. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] It should be understood that the terminology used in this specification of embodiments of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of the present invention. As used in this specification of embodiments of the present invention and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0025] Example

[0026] See Figs. 1 to 3 As shown in the figure, a multi-angle combined light source device is proposed in an embodiment of this utility model. The device is used to emit light to a test object to detect the surface state of the test object. The multi-angle combined light source device includes: a device base shell 1, a first light source module 10, a second light source module 20, a first oblique triangular prism 30, and a second oblique triangular prism 40. The device base shell 1 is provided with a recessed groove 100. The first light source module 10 and the first oblique triangular prism 30 are respectively arranged facing each other on both sides of the recessed groove 100 along a first direction. The first direction is perpendicular to the second direction. The second light source module 20 and the second oblique triangular prism 40 are respectively arranged facing each other on both sides of the recessed groove 100 along the second direction. The first light emitted by the first light source module 10 passes through the recessed groove 100 and is transmitted to the first oblique triangular prism 30. The second light emitted by the second light source module 20 passes through the recessed groove 100 and is transmitted to the second oblique triangular prism 40. The direction of the first light is perpendicular to the direction of the second light.

[0027] A further technical solution is that the multi-angle combined light source device also includes an upper shell 2, which is connected to the bottom shell 1 from top to bottom.

[0028] A further technical solution is that the upper shell 2 of the device is provided with a through opening 2a, which penetrates the first oblique triangular prism 30 and the second oblique triangular prism 40 from top to bottom. The through opening 2a also penetrates the geometric center of the bottom shell 1 of the device from top to bottom. The first light ray passes through the through opening 2a from bottom to top after being refracted by the first oblique triangular prism 30, and the second light ray passes through the through opening 2a from bottom to top after being refracted by the second oblique triangular prism 40.

[0029] A further technical solution is that the bottom shell 1 of the device includes a first fixed area and a second fixed area, the first light source module 10 includes a first lamp plate 10a and a first diffuser plate 10b, the first lamp plate 10a and the first diffuser plate 10b are arranged in parallel in the first fixed area, and the second light source module 20 includes a second lamp plate 20a and a second diffuser plate 20b, the second lamp plate 20a and the second diffuser plate 20b are arranged in parallel in the second fixed area.

[0030] A further technical solution is that the device and the object to be tested are both placed on a platform, and the bottom of the recessed groove 100 is provided with a strip-shaped opening 1a. The projection of the first light and the projection of the second light pass through the strip-shaped opening 1a and are mapped onto the platform to form a placement area.

[0031] A further technical solution is that the overlapping portion of the object being tested and the placement area on the platform occupies more than half of the bottom area of ​​the object being tested; the first light ray passes through the object being tested after being reflected by the first oblique triangular prism 30, and the second light ray passes through the object being tested after being reflected by the second oblique triangular prism 40. See details. Fig. 3 As shown, purple represents light from the light source, blue represents reflected light from the light source after passing through the prism, and green represents refracted light from the light source.

[0032] A further technical solution is that the tilt angle between the inclined surface of the first oblique triangular prism 30 and the stage is 45 degrees, and the tilt angle between the inclined surface of the second oblique triangular prism 40 and the stage is also 45 degrees.

[0033] A further technical solution is that the multi-angle combined light source device also includes a power line 50, which supplies power to the first lamp board 10a and the second lamp board 20a.

[0034] Furthermore, this application provides a detection system for detecting the surface state of a test object, wherein the test object is irradiated by light from a multi-angle combined light source device, and the detection system includes the multi-angle combined light source device as described in the above embodiments.

[0035] In summary, in a relatively ideal machine vision inspection environment, the light source device can not only provide all-round supplementary lighting for the "object under test," but also provide multi-angle supplementary lighting for the lens and camera, thus better supplementing the lighting for microstructure display supplementary lighting detection, thereby detecting a more accurate view and further understanding the surface state of the object under test. Based on this, this application proposes a multi-angle combined light source device and detection system, which utilizes the characteristics of light emission and light to achieve the ideal light source usage requirements. Its technical effect is that it provides all-round supplementary lighting for the object under test and provides more comprehensive illumination support for detecting a more accurate view.

[0036] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0041] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Since these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

[0042] The above description describes specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the scope of protection of this utility model. Therefore, the scope of protection of this utility model should be determined by the scope of the claims.

Claims

1. A multi-angle combined light source device, characterized in that, The device is used to emit light towards the object being tested to detect the surface condition of the object, and the multi-angle combined light source device includes: Device base shell, first light source module, second light source module, first oblique triangular prism, second oblique triangular prism; The bottom shell of the device is provided with a recessed groove, and a first light source module and a first oblique triangular prism are respectively arranged facing each other on both sides of the recessed groove along the first direction; the first direction is perpendicular to the second direction, and a second light source module and a second oblique triangular prism are respectively arranged facing each other on both sides of the recessed groove along the second direction. The first light emitted by the first light source module passes through the recessed groove and is transmitted to the first oblique triangular prism. The second light emitted by the second light source module passes through the recessed groove and is transmitted to the second oblique triangular prism. The direction of the first light is perpendicular to the direction of the second light.

2. The multi-angle combined light source device according to claim 1, characterized in that: The multi-angle combined light source device also includes an upper housing, which is connected to the bottom housing from top to bottom.

3. The multi-angle combined light source device according to claim 2, characterized in that: The upper shell of the device is provided with a through opening, which passes through the first oblique triangular prism and the second oblique triangular prism from top to bottom. The through opening also passes through the geometric center of the bottom shell of the device from top to bottom. The first light ray passes through the through opening from bottom to top after being refracted by the first oblique triangular prism, and the second light ray passes through the through opening from bottom to top after being refracted by the second oblique triangular prism.

4. The multi-angle combined light source device according to claim 3, characterized in that: The device's bottom shell includes a first fixed area and a second fixed area. The first light source module includes a first lamp board and a first diffuser board, which are arranged in parallel in the first fixed area. The second light source module includes a second lamp board and a second diffuser board, which are arranged in parallel in the second fixed area.

5. The multi-angle combined light source device according to claim 4, wherein both the device and the object under test are placed on a stage, characterized in that: The bottom of the recessed groove has a strip-shaped opening. The projections of the first light and the second light pass through the strip-shaped opening and are projected onto the platform to form a placement area.

6. The multi-angle combined light source device according to claim 5, characterized in that: The overlapping portion of the object under test and the placement area on the platform occupies more than half of the bottom area of ​​the object under test; the first light ray passes through the object under test after being reflected by the first oblique triangular prism, and the second light ray passes through the object under test after being reflected by the second oblique triangular prism.

7. The multi-angle combined light source device according to claim 6, characterized in that: The tilt angle between the inclined surface of the first oblique triangular prism and the stage is 45 degrees, and the tilt angle between the inclined surface of the second oblique triangular prism and the stage is also 45 degrees.

8. The multi-angle combined light source device according to claim 7, characterized in that: The multi-angle combined light source device also includes a power cord that supplies power to the first lamp panel and the second lamp panel.

9. A detection system, characterized in that, The detection system is used to detect the surface condition of a test object, wherein the test object is irradiated by light from a multi-angle combined light source device, and the detection system includes the multi-angle combined light source device as described in any one of claims 1 to 8.

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