Annular light source and detection device
By setting a light guide column on the light-emitting side of the LED beads of the ring light source, the light is focused to a set point, which solves the problem of insufficient light intensity in the existing technology and improves the light intensity of the set area.
Patent Information
- Application Number
- CN202520334987.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing ring light sources cannot focus light on a specific area, resulting in insufficient light intensity in the designated area.
A light guide column is set on the light-emitting side of each lamp bead in the ring light source, so that the optical axis of all the light guide columns intersects with a set point on the center line of the ring circuit board, and the light is focused to the set point through the light guide columns.
The light intensity of the set area has been increased, which significantly enhances the lighting effect of the light at the set point and the surrounding area.
Smart Images
Figure CN223649165U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of light source structure, and in particular to a ring light source and a detection device. Background Technology
[0002] Ring light sources are commonly used in machine vision inspection and are widely used in various shooting and inspection scenarios.
[0003] Current ring light sources consist of a ring circuit board and several rings of lamps mounted on the circuit board. Each ring of lamps includes at least three lamps spaced apart, with the lamps in the same group arranged in a circumferential array around the center line of the ring circuit board. All lamps are located on the same side of the ring circuit board, emitting light downwards to illuminate the workpiece. While the aforementioned ring light source offers good light uniformity, it cannot focus the light on a specific area and therefore cannot increase the illumination intensity of a designated area.
[0004] Therefore, it is necessary to design a ring light source and detection device that can help improve the light intensity of the designated area.
[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 ring light source and a detection device, which can help improve the light intensity of a set area.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A ring light source, comprising:
[0009] case;
[0010] The first annular light-emitting component includes a first annular circuit board mounted on the housing and at least two rings of first lamp groups mounted on the first annular circuit board, and each ring of first lamp groups includes a plurality of first lamp beads arranged at intervals.
[0011] Each first LED bead has a light guide column on its light-emitting side, and the optical axis of all the light guide columns intersects with a set point on the center line of the first annular circuit board.
[0012] Optionally, the ring light source also includes a second ring light-emitting component;
[0013] The housing has a first annular step and a second annular step, and the center lines of the first annular step and the second annular step coincide with the center line of the first annular circuit board.
[0014] The first annular circuit board is mounted on the first annular step. The second annular light-emitting component includes a second annular circuit board mounted on the second annular step and at least two rings of second lamp groups mounted on the second annular circuit board. Each ring of second lamp groups includes at least three second lamp beads arranged in a circumferential array around the center line of the first annular step, and each second lamp bead has a light guide column on its light-emitting side.
[0015] Optionally, the light guide post includes a first straight extension segment and a second arc-shaped extension segment connected in sequence;
[0016] The second arc-shaped extension segment forms a spherical light-emitting surface at its tail end, away from the first straight extension segment.
[0017] Optionally, the first straight extension segment is provided with a receiving groove for surrounding a first LED bead.
[0018] Optionally, the light guide post is plugged into the first annular circuit board, and a reflective coating is provided on the outer periphery of the light guide post;
[0019] The housing is provided with a plug-in positioning hole, and the plug-in pin of the light guide post passes through the first annular circuit board and is inserted into the plug-in positioning hole.
[0020] Optionally, the housing is further provided with a third annular step and a third annular light-emitting component mounted on the third annular step;
[0021] The third annular light-emitting component includes a third annular circuit board mounted on the third annular step and at least two rings of third lamp groups mounted on the third annular circuit board. The third lamp group includes at least three third lamp beads arranged in a circumferential array around the center line of the first annular step.
[0022] Each third LED has a light guide column on its light-emitting side.
[0023] Optionally, in the first annular light-emitting assembly, the longer the light guide column is, the further it is from the center of the first annular circuit board.
[0024] Optionally, the housing is provided with a cooling channel, and the housing is equipped with a water supply connector and a water outlet connector that communicate with the cooling channel.
[0025] Optionally, the housing is further provided with a detection hole, the center line of which coincides with the center line of the first annular circuit board.
[0026] A detection device includes a ring light source as described in any of the preceding claims.
[0027] Compared with the prior art, the present invention has the following beneficial effects:
[0028] The ring light source and detection device provided by this utility model have light guide columns provided on the light-emitting side of all the first lamp beads, and the optical axes of all the light guide columns pass through the set point on the center line of the first ring circuit board. This allows the light emitted by the first lamp beads in all the first ring light-emitting components to converge and be directed toward the set point, thereby significantly improving the light intensity of the set point and the area near the set point, which is equivalent to improving the light intensity of the set area.
[0029] 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
[0030] 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.
[0031] Figure 1 This is a cross-sectional structural schematic diagram of the ring light source provided in an embodiment of the present invention;
[0032] Figure 2 This is a schematic diagram of the installation structure of the first annular light-emitting component in the annular light source provided in this embodiment of the utility model;
[0033] Figure 3 This is a schematic diagram of the installation structure of the first annular light-emitting component in another annular light source provided in this embodiment of the present invention.
[0034] Reference numerals: 1. Housing; 11. First annular step; 12. Second annular step; 2. First annular light-emitting assembly; 21. First annular circuit board; 22. First LED bead; 3. Second annular light-emitting assembly; 31. Second annular circuit board; 32. Second LED bead; 4. Third annular light-emitting assembly; 41. Third annular circuit board; 42. Third LED bead; 50. Cooling channel; 51. Water supply connector; 52. Water outlet connector; 6. Detection hole; 101. Light guide column; 1011. First straight extension section; 1012. Second arc-shaped extension section; 1013. Receiving groove; 1014. Connecting pin; 100. Setting point. Detailed Implementation
[0035] 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.
[0036] 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.
[0037] 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.
[0038] 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.
[0039] 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.
[0040] 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.
[0041] 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.
[0042] 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.
[0043] 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.
[0044] Example 1
[0045] In view of the aforementioned defects in existing ring light sources, the applicant, based on years of rich practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theoretical principles, actively conducted research and innovation in order to create a ring light source that can solve the defects in the existing technology and make the ring light source more practical. After continuous research, design, and repeated prototype production and improvement, this utility model with real practical value has finally been created.
[0046] Please refer to Figures 1 to 3This utility model embodiment provides a ring light source, including: a housing 1; a first ring light-emitting component 2, including a first ring circuit board 21 mounted on the housing 1 and at least two rings of first lamp groups mounted on the first ring circuit board 21, and each ring of first lamp groups includes a plurality of first lamp beads 22 arranged at intervals; each first lamp bead 22 has a light guide column 101 on its light-emitting side, and the optical axis of all light guide columns 101 intersects with a set point 100 on the center line of a ring circuit board 21.
[0047] In this embodiment, by providing light guide pillars 101 on the light-emitting side of all the first LED beads 22, and ensuring that the optical axes of all the light guide pillars 101 pass through a set point 100 on the center line of the first annular circuit board 21, the light emitted by the first LED beads 22 in all the first annular light-emitting components 2 converges towards the set point 100, thereby significantly improving the illumination intensity of the set point 100 and its vicinity, which is equivalent to improving the illumination intensity of the set area. The optical axis of the light guide pillar 101 refers to the center line of the light beam emitted along the light guide pillar 101.
[0048] The ring light source in this embodiment expands the applicable environment of the ring light source, enabling it to be used in more scenarios.
[0049] Optionally, such as Figure 1 As shown, the ring light source also includes a second ring light-emitting component 3; a first ring step 11 and a second ring step 12 are formed on the housing 1, a first ring circuit board 21 is mounted on the first ring step 11, and a second ring circuit board 31 is mounted on the second ring step 12.
[0050] The center lines of the first annular step 11 and the second annular step 12 both coincide with the center line of the first annular circuit board 21; the center line of the second annular circuit board 31 coincides with the center line of the first annular circuit board 21.
[0051] The second annular light-emitting component 3 includes a second annular circuit board 31 mounted on the second annular step 12 and at least two rings of second lamp groups mounted on the second annular circuit board 31. Each ring of second lamp groups includes at least three second lamp beads 32 arranged in a circumferential array around the center line of the first annular step 11, and each second lamp bead 32 has a light guide column 101 on its light-emitting side.
[0052] In this embodiment, the first annular circuit board 21 is installed on the first annular step 11, and the second annular circuit board 31 is installed on the second annular step 12. This allows the light from the first annular light-emitting component 2 and the second annular light-emitting component 3 at different heights to be directed to the set point 100 through the light guide column 101, so that the area where the set point 100 is located is illuminated by light at different angles, further improving the lighting effect and making it easier to detect surface defects of the workpiece.
[0053] Optionally, the light guide column 101 includes a first straight extension segment 1011 and a second arc-shaped extension segment 1012 connected in sequence; the tail end of the second arc-shaped extension segment 1012 away from the first straight extension segment 1011 forms a spherical light-emitting surface. The second arc-shaped extension segment 1012 extends in an arc shape, so that the light-emitting surface is directly facing the set point 100. It should also be noted that the position of the set point 100 can be set according to actual needs, and in this case, the curvature and bending length of the second arc-shaped extension segment 1012 of different light guide columns 101 need to be adjusted accordingly.
[0054] Optionally, the first straight extension 1011 is provided with a receiving groove 1013 for surrounding a first LED bead 22. In this way, all the light from the first LED bead 22 enters the light guide post 101, and then the light guide post 101 guides the light to the set point 100.
[0055] Optionally, the light guide post 101 is plugged into the first annular circuit board 21, and a reflective coating is provided on the outer periphery of the light guide post 101; the housing 1 is provided with a plug-in positioning hole, and the plug-in pin 1014 of the light guide post 101 passes through the first annular circuit board 21 and is inserted into the plug-in positioning hole.
[0056] Specifically, the connector pin 1014 passes through the first annular circuit board 21 and is inserted into the insertion positioning hole on the housing 1, thereby making the installation of the light guide post 101 more stable, reducing the force exerted by the light guide post 101 on the first annular circuit board 21, and helping to reduce the deformation of the first annular circuit board 21 during long-term use. Preferably, the connector pin 1014 and the insertion positioning hole are connected and fixed.
[0057] It should also be noted that the light guide post 101 located on the light-emitting side of the second LED bead 32 is also connected to the housing 1 through the second annular circuit board 31 via the connector pin 1014.
[0058] Optionally, the housing 1 is further provided with a third annular step 13 and a third annular light-emitting assembly 4 mounted on the third annular step 13; the third annular light-emitting assembly 4 includes a third annular circuit board 41 mounted on the third annular step 13 and at least two rings of third lamp groups mounted on the third annular circuit board 41, the third lamp group including at least three third lamp beads 42 arranged in a circumferential array around the center line of the first annular step 11; each third lamp bead 42 is provided with a light guide column 101 on its light-emitting side.
[0059] Furthermore, light can be directed at the set point 100 from three different heights, making it easier to reveal surface defects in the workpiece.
[0060] Optionally, in the first annular light-emitting assembly 2, the light guide column 101 is longer the further away from the center of the first annular circuit board 21.
[0061] Optionally, the housing 1 is provided with a cooling channel 50, and a water supply connector 51 communicating with the cooling channel 50 and a water outlet connector 52 communicating with the cooling channel 50 are installed on the housing 1. The housing 1 is cooled by the coolant in the cooling channel 50, thereby reducing the overall temperature of the ring light source. Preferably, the cooling channel 50 undulates in a serpentine pattern around the center line of the first ring circuit board 21.
[0062] Optionally, the housing 1 is also provided with a detection hole 6, the center line of which coincides with the center line of the first annular circuit board 21.
[0063] Example 2
[0064] This embodiment discloses a detection device, including a ring light source as described in any of the preceding embodiments.
[0065] 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 ring-shaped light source, characterized in that, include: Shell (1); The first annular light-emitting component (2) includes a first annular circuit board (21) mounted on the housing (1) and at least two rings of first lamp groups mounted on the first annular circuit board (21), and each ring of first lamp groups includes a plurality of first lamp beads (22) spaced apart. Each first LED bead (22) has a light guide column (101) on its light-emitting side, and the optical axis of all light guide columns (101) intersects with a set point (100) on the center line of the first annular circuit board (21).
2. The ring light source according to claim 1, characterized in that, It also includes a second annular light-emitting component (3); The housing (1) has a first annular step (11) and a second annular step (12) formed on it. The center line of the first annular step (11) and the center line of the second annular step (12) coincide with the center line of the first annular circuit board (21). The first annular circuit board (21) is mounted on the first annular step (11). The second annular light-emitting component (3) includes a second annular circuit board (31) mounted on the second annular step (12) and at least two rings of second lamp groups mounted on the second annular circuit board (31). Each ring of second lamp groups includes at least three second lamp beads (32) arranged in a circumferential array around the center line of the first annular step (11), and each second lamp bead (32) has a light guide column (101) on its light-emitting side.
3. The ring light source according to claim 1, characterized in that, The light guide post (101) includes a first straight extension segment (1011) and a second arc-shaped extension segment (1012) connected in sequence; The second arc-shaped extension segment (1012) forms a spherical light-emitting surface at its tail end away from the first straight extension segment (1011).
4. The ring light source according to claim 3, characterized in that, The first straight extension (1011) is provided with a receiving groove (1013) for surrounding a first lamp bead (22).
5. The ring light source according to claim 1, characterized in that, The light guide post (101) is plugged into the first annular circuit board (21), and a reflective coating is provided on the outer periphery of the light guide post (101); The housing (1) is provided with a plug-in positioning hole, and the plug-in pin (1014) of the light guide post (101) passes through the first annular circuit board (21) and is inserted into the plug-in positioning hole.
6. The ring light source according to claim 2, characterized in that, The housing (1) is also provided with a third annular step (13) and a third annular light-emitting component (4) installed on the third annular step (13); The third annular light-emitting component (4) includes a third annular circuit board (41) mounted on the third annular step (13) and at least two rings of third lamp groups mounted on the third annular circuit board (41). The third lamp group includes at least three third lamp beads (42) arranged in a circumferential array around the center line of the first annular step (11). Each third LED (42) has a light guide (101) on its light-emitting side.
7. The ring light source according to claim 1, characterized in that, In the first annular light-emitting component (2), the longer the light guide column (101) is, the further it is from the center of the first annular circuit board (21).
8. The ring light source according to claim 1, characterized in that, The housing (1) is provided with a cooling channel (50), and the housing (1) is equipped with a water supply connector (51) that connects to the cooling channel (50) and a water outlet connector (52) that connects to the cooling channel (50).
9. The ring light source according to claim 2, characterized in that, The housing (1) is also provided with a detection hole (6), the center line of which coincides with the center line of the first annular circuit board (21).
10. A detection device, characterized in that, It includes a ring light source as described in any one of claims 1 to 9.