A light source device

Abstract

The utility model relates to the field of light source structure discloses a kind of light source device, including integral hemispherical shell, annular light source assembly and annular light-emitting lamp plate;The annular light-emitting lamp plate is installed in the integral hemispherical shell, for emitting light to the inner wall of the integral hemispherical shell, the inner wall of the integral hemispherical shell is used to reflect the light of the annular light-emitting lamp plate to the surface of measured workpiece;Annular mounting groove is opened in the inner wall of the integral hemispherical shell, and the annular light source assembly is installed in the annular mounting groove to emit light to measured workpiece.The utility model of a kind of light source device can improve light brightness under the premise of not increasing the volume and height of light source device.

Description

Technical Field

[0001] This utility model relates to the field of light source structure, and in particular to a light source device. Background Technology

[0002] With the development of the times and technology, people have increasingly higher requirements for the quality of various industrial products. In order to ensure product quality, it is necessary to conduct surface inspection on the manufactured products, and machine vision inspection is being used more and more widely in various fields.

[0003] The spherical integrating light source is a common light source in machine vision inspection. When in use, the spherical integrating light source is placed above the object being photographed. Through the reflection of the hemispherical shape, it can achieve uniform illumination of objects with uneven surfaces and complex shapes. However, existing spherical integrating light sources can only accommodate a small number of LEDs, resulting in low brightness. Therefore, a supplementary lighting device is required at the end of the light-emitting side. However, the addition of this supplementary lighting device significantly increases the height and volume of the entire light source device, which is not conducive to saving installation space.

[0004] Therefore, it is necessary to design a light source device that can improve the brightness of the emitted light without increasing the size and height of the light source device.

[0005] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content

[0006] This invention provides a light source device that can increase the brightness of emitted light without increasing the size and height of the light source device.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A light source device includes an integrating hemispherical shell, an annular light source assembly, and an annular light-emitting plate;

[0009] The annular light-emitting plate is installed in the integrating hemisphere shell and is used to emit light into the inner wall of the integrating hemisphere shell. The inner wall of the integrating hemisphere shell is used to reflect the light from the annular light-emitting plate onto the surface of the workpiece to be tested.

[0010] The inner wall of the integrating hemispherical shell is provided with an annular mounting groove, and the annular light source assembly is installed in the annular mounting groove to emit light to the workpiece to be tested.

[0011] Optionally, the integral hemispherical shell includes a first shell, a second shell, and an annular connecting cylinder;

[0012] The two opposite ends of the annular connecting cylinder are detachably connected to the first housing and the second housing, respectively, and the assembled first housing, the second housing, and the annular connecting cylinder form the annular mounting groove.

[0013] Optionally, the first housing is provided with a first corner groove, and the second housing is provided with a second corner groove corresponding to the first corner groove;

[0014] The ring light source assembly includes a ring circuit board and an array of LEDs mounted on the ring circuit board. The LEDs are tilted and their optical axes intersect the center line of the integrating hemispherical shell.

[0015] The first annular end of the ring circuit board is engaged in the first corner slot, and the second annular end is engaged in the second corner slot.

[0016] Optionally, the centerline of the annular light source assembly coincides with the centerline of the integrating hemispherical shell;

[0017] The integrating hemispherical shell is also provided with a detection hole, and the center line of the detection hole coincides with the center line of the integrating hemispherical shell;

[0018] The detection hole, the annular light source assembly, and the annular light-emitting plate are arranged sequentially at intervals, and the annular light source assembly emits light at an angle away from the detection hole.

[0019] Optionally, an air-cooling channel is formed between the first housing, the second housing, the annular connecting cylinder, and the annular light source assembly;

[0020] The annular connecting cylinder is also equipped with an air inlet connector and an air outlet connector.

[0021] Optionally, a support ring is installed on the annular end of the second housing away from the first housing;

[0022] The support ring is fixedly connected to the second housing, and the annular light-emitting plate is mounted on the support ring;

[0023] The light emitted by the ring light source assembly is obliquely emitted from the inner hole of the support ring.

[0024] Optionally, the end of the first housing away from the second housing is provided with an annular protruding connecting portion;

[0025] The protruding connecting part is provided with a connecting threaded hole.

[0026] Optionally, the annular light source assembly does not protrude from the opening of the annular mounting groove.

[0027] Optionally, the annular light source assembly and the annular light-emitting plate are each connected to an independent start / stop switch.

[0028] A visual inspection device includes an image inspection device and a light source device as described in any of the preceding claims;

[0029] The image detection device is used to photograph and detect the workpiece to be tested, which is illuminated by the light source device.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The light source device provided by this utility model has an ingenious structural design. An annular mounting groove is provided on the inner wall of the integrating hemispherical shell, and an annular light source component is installed in the annular mounting groove. The annular light source component can work together with the annular light-emitting plate to illuminate the workpiece under test. Thus, without increasing the size and height of the light source device, the brightness of the emitted light is significantly improved, and the workpiece under test is better illuminated.

[0032] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a front view schematic diagram of the light source device provided in an embodiment of this utility model;

[0035] Figure 2 This is a top view schematic diagram of the light source device provided in an embodiment of this utility model;

[0036] Figure 3 This is a three-dimensional structural diagram of the light source device provided in an embodiment of the present utility model.

[0037] Reference numerals: 1. Integrating hemispherical shell; 101. Annular mounting groove; 102. Detection hole; 11. First shell; 111. First corner groove; 12. Second shell; 121. Second corner groove; 13. Annular connecting cylinder; 14. Support ring; 15. Annular protruding connecting part; 2. Annular light source assembly; 21. Annular circuit board; 22. Lamp bead; 3. Annular light output board; 100. Workpiece to be tested; 200. Air-cooled flow channel. Detailed Implementation

[0038] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0039] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0040] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0041] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0042] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0043] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0044] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0045] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0046] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0047] Example 1

[0048] In view of the aforementioned deficiencies in existing light source devices, the applicant, based on years of extensive practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theoretical principles, has actively conducted research and innovation in order to create a solution that overcomes the shortcomings of existing technologies and makes the light source device more practical. Through continuous research and design, and after repeated prototype production and improvements, this utility model, which possesses genuine practical value, has finally been created.

[0049] Please refer to Figures 1 to 3 This utility model provides a light source device, including an integrating hemispherical shell 1, an annular light source assembly 2, and an annular light-emitting plate 3.

[0050] The annular light-emitting plate 3 is installed in the integrating hemisphere shell 1 and is used to emit light into the inner wall of the integrating hemisphere shell 1. The inner wall of the integrating hemisphere shell 1 is used to reflect the light from the annular light-emitting plate 3 onto the surface of the workpiece 100 to be measured. An annular mounting groove 101 is provided on the inner wall of the integrating hemisphere shell 1, and the annular light source assembly 2 is installed in the annular mounting groove 101 to emit light into the workpiece 100 to be measured.

[0051] It should be further explained that the integrating hemispherical shell 1 has a light-emitting opening, and the annular light-emitting lamp plate 3 emits light into the inner wall of the integrating hemispherical shell 1. The light is reflected by the inner wall of the integrating hemispherical shell 1 and emitted from the light-emitting opening. Similarly, the light emitted by the annular light source assembly 2 passes through the light-emitting opening and is directly emitted into the workpiece to be measured.

[0052] The light source device of this embodiment, through ingenious structural design, has an annular mounting groove 101 on the inner wall of the integrating hemispherical shell 1, and an annular light source component 2 is installed in the annular mounting groove 101. The annular light source component 2 can work together with the annular light-emitting lamp plate 3 to illuminate the workpiece 100 under test, thereby significantly improving the light output brightness and better illuminating the workpiece under test without increasing the volume and height of the light source device.

[0053] Optionally, the integrating hemispherical shell 1 includes a first shell 11, a second shell 12, and an annular connecting cylinder 13. The two opposite ends of the annular connecting cylinder 13 are detachably connected to the first shell 11 and the second shell 12, respectively, and the assembled first shell 11, second shell 12, and annular connecting cylinder 13 form an annular mounting groove 101. It should be noted that the detachable connection of the two opposite ends of the annular connecting cylinder 13 to the first shell 11 and the second shell 12 facilitates the installation and removal of the annular light source assembly 2. The two opposite ends of the annular connecting cylinder 13 are sealed to the first shell 11 and the second shell 12, thereby preventing light leakage. It should also be noted that the annular connecting cylinder 13 is cylindrical, and one end of the annular connecting cylinder 13 can be connected to either the first shell 11 or the second shell 12, which significantly reduces the difficulty of installation.

[0054] Optionally, the first housing 11 is provided with a first corner slot 111, and the second housing 12 is provided with a second corner slot 121 corresponding to the first corner slot 111; the annular light source assembly 2 includes an annular circuit board 21 and an array of lamp beads 22 mounted on the annular circuit board 21. The lamp beads 22 are inclined, and the optical axis of the lamp beads 22 intersects the center line of the integrating hemispherical shell 1; the first annular end of the annular circuit board 21 is engaged in the first corner slot 111, and the second annular end is engaged in the second corner slot 121. In this embodiment, the annular circuit board 21 is fixed by the first corner slot 111 and the second corner slot 121, so that the annular circuit board 21 can be fixed without other connecting fasteners.

[0055] Optionally, the centerline of the ring light source assembly 2 coincides with the centerline of the integrating hemisphere shell 1; a detection hole 102 is also provided on the integrating hemisphere shell 1, and the centerline of the detection hole 102 coincides with the centerline of the integrating hemisphere shell 1; the detection hole 102, the ring light source assembly 2, and the ring light-emitting plate 3 are arranged sequentially at intervals, and the ring light source assembly 2 emits light at an angle away from the detection hole 102. The image detection device can detect the illuminated workpiece 100 through the detection hole 102. The detection hole 102 is located directly above the workpiece 100, resulting in better image detection effect.

[0056] Optionally, an air-cooled flow channel 200 is formed between the first housing 11, the second housing 12, the annular connecting cylinder 13, and the annular light source assembly 2. An air inlet and an exhaust connector are also installed on the annular connecting cylinder 13; neither the air inlet nor the exhaust connector is shown in the figure. The air inlet inputs cooling airflow into the air-cooled flow channel 200, and the exhaust connector is used to discharge the heated cooling airflow. Generally, the air inlet and exhaust connectors are arranged with respect to the central symmetry plane of the integral hemispherical shell 1 to improve the cooling effect of the cooling airflow.

[0057] Optionally, a support ring 14 is installed on the annular end of the second housing 12 away from the first housing 11; the support ring 14 is fixedly connected to the second housing 12, and the annular light-emitting plate 3 is installed on the support ring 14; the support ring 14 supports the annular light-emitting plate 3 and does not block the light from being emitted. The light emitted by the annular light source assembly 2 is emitted obliquely from the inner hole of the support ring 14.

[0058] Optionally, an annular protruding connecting portion 15 is provided at the end of the first housing 11 away from the second housing 12; the protruding connecting portion 15 is provided with a connecting threaded hole. Therefore, the protruding connecting portion 15 can be directly connected to the frame or to an image detection device, etc., making the installation of the light source device simpler and more convenient.

[0059] Optionally, the annular light source assembly 2 does not protrude from the opening of the annular mounting groove 101. This prevents the LED beads 22 in the annular light source assembly 2 from blocking the light emitted by the annular light-emitting plate 3 when it is not turned on, further increasing the amount of light emitted by the annular light-emitting plate 3 illuminating the inner wall of the integrating hemisphere shell 1.

[0060] Optionally, the ring light source assembly 2 and the ring light-emitting panel 3 are each connected to an independent start / stop switch. In actual use, either the ring light source assembly 2 or the ring light-emitting panel 3 can be turned on, or both can be turned on simultaneously.

[0061] Example 2

[0062] This embodiment discloses a visual inspection device, including an image inspection device and a light source device as described in Embodiment 1; the image inspection device is used to take pictures of the workpiece 100 to be inspected, which is illuminated by the light source device.

[0063] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A light source device, characterized in that, It includes an integrating hemispherical shell (1), an annular light source assembly (2), and an annular light-emitting plate (3); The annular light-emitting plate (3) is installed in the integrating hemisphere shell (1) and is used to emit light to the inner wall of the integrating hemisphere shell (1). The inner wall of the integrating hemisphere shell (1) is used to reflect the light emitted by the annular light-emitting plate (3) to the surface of the workpiece (100) to be tested. The inner wall of the integrating hemispherical shell (1) is provided with an annular mounting groove (101), and the annular light source assembly (2) is installed in the annular mounting groove (101) to emit light to the workpiece (100) to be tested.

2. The light source apparatus according to claim 1, wherein The integral hemispherical shell (1) includes a first shell (11), a second shell (12), and an annular connecting cylinder (13); The two opposite ends of the annular connecting cylinder (13) are detachably connected to the first housing (11) and the second housing (12), respectively, and the assembled first housing (11), second housing (12) and the annular connecting cylinder (13) form the annular mounting groove (101).

3. The light source apparatus according to claim 2, wherein The first housing (11) is provided with a first corner groove (111), and the second housing (12) is provided with a second corner groove (121) corresponding to the first corner groove (111); The ring light source assembly (2) includes a ring circuit board (21) and an array of lamp beads (22) mounted on the ring circuit board (21). The lamp beads (22) are inclined and the optical axis of the lamp beads (22) intersects the center line of the integrating hemispherical shell (1). The first annular end of the ring circuit board (21) is engaged in the first corner slot (111), and the second annular end is engaged in the second corner slot (121).

4. The light source apparatus according to claim 1, wherein The centerline of the ring light source assembly (2) coincides with the centerline of the integrating hemispherical shell (1); The integrating hemispherical shell (1) is also provided with a detection hole (102), and the center line of the detection hole (102) coincides with the center line of the integrating hemispherical shell (1); The detection hole (102), the ring light source assembly (2), and the ring light-emitting plate (3) are arranged sequentially at intervals, and the ring light source assembly (2) emits light at an angle away from the detection hole (102).

5. The light source device according to claim 2, characterized in that, An air-cooled flow channel (200) is formed between the first housing (11), the second housing (12), the annular connecting cylinder (13), and the annular light source assembly (2); The annular connecting cylinder (13) is also equipped with an air inlet connector and an air outlet connector.

6. The light source apparatus according to claim 2, wherein A support ring (14) is installed on the annular end of the second housing (12) away from the first housing (11); The support ring (14) is fixedly connected to the second housing (12), and the annular light-emitting plate (3) is mounted on the support ring (14); The light emitted by the ring light source assembly (2) is obliquely emitted from the inner hole of the support ring (14).

7. The light source apparatus according to claim 2, wherein The end of the first housing (11) away from the second housing (12) is provided with an annular protruding connecting part (15); The protruding connecting part is provided with a connecting threaded hole.

8. The light source device according to claim 1, characterized in that, The ring light source assembly (2) does not protrude from the opening of the ring mounting groove (101).

9. The light source apparatus according to claim 1, wherein The ring light source assembly (2) and the ring light output plate (3) are each connected to an independent start / stop switch.

10. A vision inspection apparatus characterized by comprising: Includes an image detection device and a light source device as described in any one of claims 1 to 9; The image detection device is used to take pictures of the workpiece (100) to be tested, which is illuminated by the light source device.

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