Linear scanning three-dimensional lighting device and detection device
By designing the focusing rod and reflector assembly of the line-scan three-dimensional lighting device, the problem of insufficient light concentration and brightness in the existing technology is solved, significantly improving the lighting effect on the workpiece surface and increasing the efficiency of defect and code recognition.
Patent Information
- Application Number
- CN202520265256.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-18
AI Technical Summary
The light concentration and brightness of the light source in existing line scanning inspection devices are poor, which makes it take longer for the camera to identify workpiece defects or codes.
Design a line-scanning three-dimensional lighting device that uses a combination of a light-collecting rod and a reflector group to gather and reflect light, converging it onto a preset area to enhance illumination.
It improves the brightness of the workpiece surface, significantly enhancing the visibility of defects and codes.
Smart Images
Figure CN223650416U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of light source structure technology, and in particular to a line scan stereo lighting device and a detection device. Background Technology
[0002] Visual inspection uses machines to replace human eyes in measurement and judgment, thereby determining whether there are defects on the surface of a workpiece. The light source is a crucial component of visual inspection, and light sources include bar lights, stripe lights, point lights, ring lights, and so on. Different inspection scenarios require different light sources. Current line scan inspection devices are generally equipped with planar diffused light sources, which have poor illumination concentration and brightness, thus requiring the camera to take longer to identify defects or codes on the workpiece.
[0003] Therefore, it is necessary to design a line-scan three-dimensional lighting device and a detection device, which can help improve the brightness of the light irradiated on the workpiece.
[0004] 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
[0005] This utility model provides a line-scan three-dimensional lighting device and a detection device, which can help improve the brightness of the light irradiated on the workpiece.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A line-scan stereo lighting device, comprising:
[0008] Focusing rod;
[0009] The light-emitting component includes several groups of LED beads, the arrangement of which is parallel to the center line of the focusing rod, and several groups of LED beads are located on one side of the top of the focusing rod and arranged in an array around the center line of the focusing rod.
[0010] A reflector assembly, comprising at least two reflectors disposed on one side of the bottom of the light-emitting component, wherein the reflectors are used to reflect the light emitted by the light-emitting component after passing through the light-emitting component, so that the light is focused on a preset area.
[0011] Optionally, the number of reflectors in the reflector group is the same as the number of lamp bead groups, and one group of lamp bead groups corresponds to one reflector;
[0012] The reflector has a mirror centerline parallel to the centerline of the focusing rod, and a line connecting any point on the centerline of a group of LED beads and any point on the mirror centerline of the corresponding reflector passes through the centerline of the focusing rod.
[0013] Optionally, several groups of the lamp beads are symmetrical about the center vertical plane passing through the center line of the focusing rod;
[0014] The reflector assembly includes a first mirror group and a second mirror group, which are vertically symmetrical about the center.
[0015] Optionally, the mirror surface of the reflector faces the central vertical plane.
[0016] Optionally, the mirror surface is parallel to the central vertical plane.
[0017] Optionally, the closer the reflector is to the central vertical plane, the shorter its length in the vertical direction.
[0018] Optionally, in the first mirror group, the closer to the central vertical plane, the smaller the distance between two adjacent mirrors.
[0019] Optionally, the mirror surface of the reflector is tilted and faces the focusing rod.
[0020] Optionally, the cross-section of the focusing rod is circular in a plane perpendicular to the centerline of the focusing rod.
[0021] A detection device includes a line scanning stereo lighting device as described in any of the preceding claims.
[0022] Compared with the prior art, the present invention has the following beneficial effects:
[0023] The line-scanning three-dimensional lighting device and detection device provided by this utility model uses a focusing rod to concentrate the light emitted from an array of LED beads arranged in a central line around the focusing rod and direct it toward a reflector. The light is then reflected by the reflector, thereby converging the light onto a preset area to illuminate the surface of the workpiece. In this embodiment, the line-scanning three-dimensional lighting device and detection device can converge and concentrate the light from multiple LED bead arrays onto a preset area, thus providing higher brightness illumination to the workpiece within that area.
[0024] 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
[0025] 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.
[0026] Figure 1 This is a schematic diagram of the installation structure of the line scanning stereo lighting device provided in this embodiment of the utility model.
[0027] Reference numerals: 1. Focusing rod; 2. Light-emitting assembly; 21. Lamp bead assembly; 3. Reflector assembly; 301. Reflector; 100. Central vertical plane. Detailed Implementation
[0028] 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.
[0029] 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.
[0030] 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.
[0031] 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.
[0032] 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.
[0033] 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.
[0034] 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.
[0035] 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.
[0036] 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.
[0037] Example 1
[0038] In view of the shortcomings of existing line-scanning stereo lighting devices, 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 researched and innovated in order to create a device that could overcome the deficiencies of the existing technology and make the line-scanning stereo lighting device more practical. After continuous research, design, and repeated prototype production and improvement, this utility model with real practical value was finally created.
[0039] Please refer to Figure 1 This utility model provides a line-scanning stereo lighting device, including a light-concentrating rod 1, a light-emitting component 2, and a reflector group 3.
[0040] A light-emitting component 2 includes several groups of LED beads 21 arranged parallel to the center line of the light-emitting component 1, with several groups of LED beads 21 located on one side of the top of the light-emitting component 1 and arranged in an array around the center line of the light-emitting component 1; a reflector group 3 includes at least two reflectors 301 disposed on one side of the bottom of the light-emitting component 1, which are used to reflect the light emitted by the light-emitting component 2 after passing through the light-emitting component 1, so that the light is focused on a preset area.
[0041] The line-scanning stereo lighting device provided in this embodiment uses a focusing rod 1 to concentrate the light emitted from the LED bead array 21 arranged in a central line around the focusing rod 1 and direct it towards a reflector 301. The reflector 301 then reflects the light, thereby converging the light onto a preset area to illuminate the workpiece surface. This line-scanning stereo lighting device can converge the light from multiple LED bead arrays 21 onto a preset area, thus providing higher brightness illumination to the workpiece within that area. Compared to existing planar diffuse light sources, the illumination intensity is significantly improved.
[0042] Optionally, the number of reflectors 301 in the reflector group 3 is the same as the number of lamp bead groups 21, and one group of lamp bead groups 21 corresponds to one reflector 301; the reflector 301 has a mirror centerline parallel to the centerline of the focusing rod 1, and the line connecting any point on the arrangement centerline of one group of lamp bead groups 21 and any point on the mirror centerline of the corresponding reflector 301 passes through the centerline of the focusing rod 1.
[0043] like Figure 1 As shown, a group of LED beads 21 emits light, which, under the focusing effect of the focusing rod 1, converges towards the center line of the corresponding reflector 301, and then is reflected to the preset area. The range of the tilt angle of the light relative to the top surface of the product can be larger, making it easier to show defects or codes on the workpiece.
[0044] Optionally, several groups of LED beads 21 are symmetrical about a central vertical plane 100 passing through the center line of the focusing rod 1; the reflector group 3 includes a first mirror group and a second mirror group, which are symmetrical about the central vertical plane 100. For example... Figure 1 All the mirrors 301 located to the left of the central vertical plane 100 form the first mirror group, and all the mirrors 301 located to the right of the central vertical plane 100 form the second mirror group.
[0045] Optionally, in this embodiment, the mirror surface of the reflector 301 faces the central vertical surface 100.
[0046] Optionally, the mirror surface of the reflector 301 is parallel to the central vertical plane 100. Preferably, the mirror surface of the reflector 301 is relatively tilted, thereby reflecting more light obliquely to the preset area.
[0047] Optionally, the closer the reflector 301 is to the central vertical surface 100, the shorter its length in the vertical direction, so as to avoid blocking more light and allow more light to be projected onto the preset area.
[0048] Optionally, in the first mirror group, the closer to the central vertical surface 100, the smaller the distance between two adjacent reflectors 301, so that more light can be projected onto the preset area.
[0049] Optionally, the mirror surface of the reflector 301 is tilted and faces the light-concentrating rod 1. Specifically, with the mirror surface of the reflector 301 tilted and facing the light-concentrating rod 1, the reflector 301 can utilize a larger reflective area, thereby allowing more light to be projected onto the preset area.
[0050] Optionally, the focusing rod 1 is located between the two farthest reflecting mirrors 301. That is, the distance between the two farthest reflecting mirrors 301 is greater than the diameter of the focusing rod 1.
[0051] Optionally, the cross-section of the light-concentrating rod 1 is circular on a plane perpendicular to the center line of the light-concentrating rod 1, thereby improving the light-concentrating effect.
[0052] It should also be noted that a housing for supporting the light-emitting assembly 2 is required. The light-emitting assembly 2 includes an arc-shaped circuit board, on which the LED assembly 21 is mounted.
[0053] Example 2
[0054] This embodiment provides a detection device, including the line scanning stereo lighting device as described in Embodiment 1.
[0055] 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 line-scanning three-dimensional lighting device, characterized in that, include: Focusing rod (1); The light-emitting component (2) includes several groups of LED beads (21), the arrangement direction of the LED beads (21) is parallel to the center line of the focusing rod (1), and several groups of LED beads (21) are located on one side of the top of the focusing rod (1) and arranged in an array around the center line of the focusing rod (1). The reflector assembly (3) consists of at least two reflectors (301) disposed on one side of the bottom of the light-emitting rod (1). The reflectors (301) are used to reflect the light emitted by the light-emitting component (2) after passing through the light-emitting rod (1) so that the light is focused on a preset area.
2. The line-scanning stereo lighting device according to claim 1, characterized in that, The number of reflectors (301) in the reflector group (3) is the same as the number of lamp bead groups (21), and one group of lamp bead groups (21) corresponds to one reflector (301); The reflector (301) has a mirror centerline parallel to the centerline of the focusing rod (1). A line connecting any point on the centerline of the arrangement of a group of lamp beads (21) and any point on the mirror centerline of the corresponding reflector (301) passes through the centerline of the focusing rod (1).
3. The line-scanning stereo lighting device according to claim 1, characterized in that, Several groups of the lamp beads (21) are symmetrical about the central vertical plane (100) passing through the center line of the focusing rod (1); The reflector group (3) includes a first mirror group and a second mirror group, which are symmetrical about the central vertical plane (100).
4. The line-scanning stereo lighting device according to claim 3, characterized in that, The mirror surface of the reflector (301) faces the central vertical surface (100).
5. The line-scanning stereo lighting device according to claim 3, characterized in that, The mirror surface of the reflector (301) is parallel to the central vertical plane (100).
6. The line-scanning stereo lighting device according to claim 5, characterized in that, The closer the reflector (301) is to the central vertical surface (100), the shorter its length in the vertical direction.
7. The line-scanning stereo lighting device according to claim 3, characterized in that, In the first mirror group, the closer to the central vertical surface (100), the smaller the distance between two adjacent mirrors (301).
8. The line-scanning stereo lighting device according to claim 1, characterized in that, The mirror (301) is tilted and the mirror surface faces the focusing rod (1).
9. The line-scanning stereo lighting device according to claim 1, characterized in that, On a plane perpendicular to the center line of the focusing rod (1), the cross-section of the focusing rod (1) is circular.
10. A detection device, characterized in that, It includes a line-scan stereo lighting device as described in any one of claims 1 to 9.