Arched light source device and detection device
By using the combined structure of the housing reflective surface and transparent light guide in the arched light source device, the problem of low light utilization efficiency is solved, and higher light intensity and uniformity are achieved.
Patent Information
- Application Number
- CN202422153503.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The existing arch light source device has low light utilization efficiency, and the light is easily scattered in the air, making it difficult to increase the light intensity.
A combined structure of the housing reflective surface and a transparent light guide is adopted. The transparent light guide has an arc-shaped light-exit surface at the bottom. After being reflected, the light is emitted through the light-exit surface. The scattering is reduced through the transparent light guide, thereby improving the light utilization rate.
The irradiation intensity of light on the surface of the workpiece is improved, and the light uniformity and efficiency are enhanced.
Smart Images
Figure CN223165478U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of machine vision detection, in particular to an arched light source device and a detection device. Background Art
[0002] An arched light source device generally includes an arched structure and a light-emitting lamp board. The bottom surface of the arched structure is a reflecting surface. The lamp board is installed at one side of the bottom of the reflecting surface to emit light towards the reflecting surface, and the reflecting surface reflects the light to the surface of the workpiece, thereby illuminating the surface of the workpiece. For the existing arched light source device, an arched structure with a uniform radian needs to be specially set to make the light reflected by the reflecting surface better concentrated in a set area. However, the arched structure can only reflect local light to the set area, and the light is prone to scattering when in the air, so the utilization efficiency of the light is relatively low, and the effect of improving the illumination intensity is limited.
[0003] In view of this, it is necessary to design an arched light source device and a detection device to improve the illumination intensity of the workpiece.
[0004] The above information is given as background information only to assist in understanding the present disclosure, and does not determine or admit whether any of the above content can be used as the prior art relative to the present disclosure. Summary of the Utility Model
[0005] The utility model provides an arched light source device and a detection device to improve the illumination intensity of the workpiece.
[0006] To achieve the above object, the utility model provides the following technical solutions:
[0007] An arched light source device, comprising:
[0008] A housing, including a top plate, side plates connecting the top plate, and a lamp board support plate extending from the bottom end of the side plates. A light-emitting lamp board facing the top plate is installed on the lamp board support plate, and the surfaces of the top plate and the side plates close to the light-emitting lamp board are both reflecting surfaces;
[0009] A transparent light guide, fitting all the reflecting surfaces; the bottom of the transparent light guide has a light-emitting surface for the light reflected by the reflecting surfaces to emit, and the light-emitting surface is an arc surface.
[0010] Optionally, the side plates are provided on both opposite sides of the top plate;
[0011] The transparent light guide has opposite first and second side surfaces and is located between the two side plates; the top surface of the transparent light guide fits the top plate, the first side surface fits one side plate, and the second side surface fits the other side plate.
[0012] Optionally, the transparent light guide is provided with a first card slot, and one end of the lamp board support plate away from the side plate is clamped with the first card slot.
[0013] Optionally, the light-emitting lamp board includes a circuit board and lamp beads mounted on the circuit board, and at least part of the light-emitting surface is lower than the lamp beads.
[0014] Optionally, there are two lamp board support plates, and the light-emitting lamp boards are mounted on each of the lamp board support plates, and the two light-emitting lamp boards are symmetrically arranged with respect to a set central plane.
[0015] Optionally, a detection hole is formed in the top plate, and a through hole corresponding to the detection hole is provided in the transparent light guide, and the through hole penetrates from the top surface of the transparent light guide to the light-emitting surface.
[0016] Optionally, the side plate is perpendicular to the top plate, and the lamp board support plate is parallel to the top plate;
[0017] The transparent light guide, the side plate and the lamp board support plate enclose an installation space for installing the light-emitting lamp board.
[0018] Optionally, a total reflection coating is provided on the bottom surface of the top plate and the side surface of the side plate close to the light-emitting lamp board.
[0019] Optionally, a diffusion film is provided on the light-emitting surface.
[0020] A detection device includes a detection camera and an arched light source device as described in any one of the above.
[0021] The detection camera is used to take pictures of the workpiece illuminated by the arched light source device.
[0022] Compared with the prior art, the present utility model has the following beneficial effects:
[0023] For the arched light source device and the detection device provided by the present utility model, by providing a reflective surface on the housing, more light can be reflected to the light-emitting surface for emission, and a transparent light guide is provided to reduce the scattering effect of light, so that more light emitted from the arc-shaped light-emitting surface can be irradiated on the workpiece, improving the illumination intensity of the workpiece.
[0024] The present utility model has other characteristics and advantages, which will be obvious from the accompanying drawings incorporated herein and the subsequent specific embodiments, or will be described in detail in the accompanying drawings incorporated herein and the subsequent specific embodiments, and these drawings and specific embodiments are jointly used to explain the specific principles of the present utility model. Description of the Drawings
[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0026] Figure 1 It is a top view schematic diagram of the arched light source device provided by the embodiment of the present invention;
[0027] Figure 2 It is a cross-sectional structure schematic diagram of the arched light source device provided by the embodiment of the present invention;
[0028] Figure 3 It is a cross-sectional structure schematic diagram of the transparent light guide body provided by the embodiment of the present invention;
[0029] Figure 4 It is a structure schematic diagram of the housing provided by the embodiment of the present invention.
[0030] Reference numerals: 100, set central plane; 1, housing; 101, reflective surface; 102, detection hole; 103, through hole; 11, top plate; 12, side plate; 13, lamp board support plate; 2, light-emitting lamp board; 21, circuit board; 22, lamp beads; 3, transparent light guide body; 301, light-emitting surface; 302, first card slot; 4, installation space; 200, workpiece. Detailed implementation manners
[0031] To elaborate in detail on the possible application scenarios, technical principles, specific implementable solutions, achievable purposes and effects, etc. of the present application, the following will be described in detail in conjunction with the specific embodiments listed and the accompanying drawings. The embodiments recorded herein are only used to more clearly illustrate the technical solutions of the present application, so they are only examples and cannot be used to limit the protection scope of the present application.
[0032] Referring to "embodiment" in this article means that the specific features, structures or characteristics described in conjunction with the embodiment can be included in at least one embodiment of the present application. The term "embodiment" appearing at various positions in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0033] Unless otherwise defined, the technical terms used herein have the same meanings as those commonly understood by those skilled in the technical field to which this application pertains; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.
[0034] In the description of this application, the term "and / or" is an expression 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 both A and B exist simultaneously. Additionally, the character " / " herein generally represents an "or" logical relationship between the associated objects before and after.
[0035] In this application, terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual quantitative, primary-secondary, or sequential relationships, etc. between these entities or operations.
[0036] Without further limitations, in this application, the expressions such as "include", "comprise", "have", or other similar expressions used in statements are intended to cover non-exclusive inclusion. These expressions do not exclude the possibility that there may be additional elements in the process, method, or product including the said elements. Thus, in a process, method, or product including a series of elements, it can include not only those defined elements, but also other elements not explicitly listed, or elements inherent to such a process, method, or product.
[0037] Similar to the understanding in the "Examination Guidelines", in this application, expressions such as "greater than", "less than", "exceeding", etc. are understood not to include the number itself; expressions such as "above", "below", "within", etc. are understood to include the number itself. In addition, in the description of the embodiments of this application, the meaning of "multiple" is two or more (including two). Similar expressions related to "many", such as "multiple groups", "multiple times", etc., are understood in the same way, unless otherwise specifically defined.
[0038] In the description of the embodiments of this application, the spatially related expressions used, such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "perpendicular", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiment or the accompanying drawings. It is only for the convenience of describing the specific embodiments of this application or for the reader's understanding, and does 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, it should not be construed as a limitation to the embodiments of this application.
[0039] Unless otherwise clearly specified or defined, in the description of the embodiments of the present application, terms such as "installed", "connected", "linked", "fixed", "set", etc. shall be understood in a broad sense. For example, the "connection" may be a fixed connection, a detachable connection, or an integral setting; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium; it may be the communication inside two components or the interaction relationship between two components. For those skilled in the art to which the present application pertains, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.
[0040] Embodiment 1
[0041] In view of the defects existing in the above-mentioned existing arched light source devices, based on the rich practical experience and professional knowledge in the design and manufacture of such products for many years by the applicant, and in cooperation with the application of scientific theories, active research and innovation have been carried out in the hope of creating a technology that can solve the defects in the existing technology, making the arched light source device more practical. After continuous research, design, and repeated trial production of samples and improvements, the present utility model with practical value has finally been created.
[0042] Please refer to Figures 1 to 4 , the embodiments of the present utility model provide an arched light source device, including:
[0043] A housing 1, including a top plate 11, side plates 12 connected to the top plate 11, and a lamp board support plate 13 extending from the bottom end of the side plates 12. A light-emitting lamp board 2 facing the top plate 11 is installed on the lamp board support plate 13, and the surfaces of the top plate 11 and the side plates 12 close to the light-emitting lamp board 2 are both reflecting surfaces 101; a transparent light guide 3, which fits all the reflecting surfaces 101, that is, the transparent light guide 3 fits each reflecting surface respectively, generally realized by controlling the shape of the transparent light guide 3; the bottom of the transparent light guide 3 has a light-emitting surface 301, and the light-emitting surface 301 is used for the light reflected by the reflecting surface 101 to be emitted, and the light-emitting surface 301 is an arc surface. Preferably, the transparent light guide 3 is adhesively bonded to the housing 1 through transparent glue. The transparent light guide 3 is made of a light guide material.
[0044] Specifically, the light emitted by the light-emitting lamp board 2 is reflected one or more times by the reflecting surface 101 and then emitted from the light-emitting surface 301, enabling more light, especially the light that needs to be reflected two or more times, to be emitted from the light-emitting surface 301, improving the utilization efficiency of the light emitted by the light-emitting lamp board 2; in addition, by providing the transparent light guide 3, the scattering effect during light propagation can be reduced, making the light-emitting intensity of the light irradiated on the workpiece 200 through the light-emitting surface 301 higher.
[0045] Optionally, side plates 12 are provided on both opposite sides of the top plate 11; the transparent light guide 3 has opposite first and second side surfaces and is located between the two side plates 12; the top surface of the transparent light guide 3 abuts against the top plate 11, the first side surface abuts against one side plate 12, and the second side surface abuts against the other side plate 12. It should be added that reflective surfaces 101 are provided in the areas where the side plates 12 abut against the transparent light guide 3. At this time, it is equivalent to forming a U-shaped structure, so that the reflected light can only be emitted from below, that is, only from the light-emitting surface 301. The setting of the reflective surfaces 101 can improve the utilization rate of light.
[0046] Optionally, the transparent light guide 3 is provided with a first card slot 302, and one end of the lamp board support plate 13 away from the side plate 12 is clamped with the first card slot 302. Specifically, one end of the board support plate 13 away from the side plate 12 is clamped with the first card slot 302, so as to better position and fix the transparent light guide 3, and keep the transparent light guide 3 in a state of abutting against the top plate 11 and the side plate 12, avoiding a large gap between the transparent light guide 3 and the housing 1 and affecting the light reflection effect. If there is a large gap between the transparent light guide 3 and the housing 1, the light is easily consumed by continuous reflection between the outer wall of the transparent light guide 3 and the housing 1.
[0047] Optionally, the light-emitting lamp board 2 includes a circuit board 21 and lamp beads 22 mounted on the circuit board 21, and at least part of the light-emitting surface 301 is lower than the lamp beads 22.
[0048] Optionally, as Figure 2 , there are two lamp board support plates 13, and a light-emitting lamp board 2 is mounted on each lamp board support plate 13. The two light-emitting lamp boards 2 are symmetrically arranged with respect to a set central plane 100, further improving the uniformity of light emission. Specifically, the two light-emitting lamp boards 2 emit light towards the transparent light guide 3 from both sides, and the light irradiated on the workpiece 200 is more uniform.
[0049] Optionally, as Figure 2 shown, a detection hole 102 is formed in the top plate 11, and the transparent light guide 3 is provided with a through hole 103 corresponding to the detection hole 102. The through hole 103 penetrates from the top surface of the transparent light guide 3 to the light-emitting surface 301. Preferably, the center lines of the through hole 103 and the detection hole 102 coincide.
[0050] Optionally, the side plate 12 is perpendicular to the top plate 11, and the lamp board support plate 13 is parallel to the top plate 11; the transparent light guide 3, the side plate 12 and the lamp board support plate 13 enclose an installation space 4 for installing the light-emitting lamp board 2. The installation space 4 separates the light-emitting lamp board 2 and the transparent light guide 3 from each other, and a cooling air flow can pass through the installation space 4 to cool the light-emitting lamp board 2.
[0051] Optionally, a total reflection coating is provided on the bottom surface of the top plate 11 and the side surface of the side plate 12 close to the light-emitting lamp board 2.
[0052] Optionally, a diffusion film is provided on the light-emitting surface 301, and the diffusion film has a scattering effect on the emitted light, improving the uniformity of the illumination.
[0053] Embodiment 2
[0054] This embodiment discloses a detection device, including a detection camera 5 and the arched light source device as described in Embodiment 1; the detection camera 5 is used to take pictures of the workpiece 200 illuminated by the arched light source device, so as to detect the surface of the workpiece 200.
[0055] Finally, it should be noted that although the above embodiments have been described in the text of the specification and the drawings of this application, the patent protection scope of this application cannot be limited thereby. Any technical solutions obtained by equivalent structure or equivalent process substitution or modification based on the substantial concept of this application, using the content recorded in the text of the specification and the drawings of this application, as well as those directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are all included in the patent protection scope of this application.
Claims
1. An arched light source device, characterized in that, Comprising: A housing (1), including a top plate (11), side plates (12) connecting the top plate (11), and a lamp board support plate (13) extending from the bottom end of the side plates (12). A light-emitting lamp board (2) facing the top plate (11) is installed on the lamp board support plate (13), and the surfaces of the top plate (11) and the side plates (12) close to the light-emitting lamp board (2) are both reflective surfaces (101); A transparent light guide (3) that fits all the reflective surfaces (101); the bottom of the transparent light guide (3) has a light-emitting surface (301) for the light reflected by the reflective surfaces (101) to emit, and the light-emitting surface (301) is an arc surface.
2. The arched light source device according to claim 1, characterized in that, The side plates (12) are provided on both opposite sides of the top plate (11); The transparent light guide (3) has opposite first and second sides and is located between the two side plates (12); the top surface of the transparent light guide (3) fits the top plate (11), the first side fits one of the side plates (12), and the second side fits the other side plate (12).
3. The arched light source device according to claim 1, characterized in that, The transparent light guide (3) is provided with a first card slot (302), and the end of the lamp board support plate (13) away from the side plate (12) is snap-connected to the first card slot (302).
4. The arched light source device according to claim 1, characterized in that, The light-emitting lamp board (2) includes a circuit board (21) and lamp beads (22) installed on the circuit board (21), and at least part of the light-emitting surface (301) is lower than the lamp beads (22).
5. The arched light source device according to claim 1, characterized in that, There are two lamp board support plates (13), and the light-emitting lamp board (2) is installed on each lamp board support plate (13). The two light-emitting lamp boards (2) are symmetrically arranged with respect to a set central plane (100).
6. The arched light source device according to claim 1, characterized in that, A detection hole (102) is opened on the top plate (11), and the transparent light guide (3) is provided with a through hole (103) corresponding to the detection hole (102). The through hole (103) penetrates from the top surface of the transparent light guide (3) to the light-emitting surface (301).
7. The arched light source device according to claim 1, characterized in that, The side plates (12) are perpendicular to the top plate (11), and the lamp board support plate (13) is parallel to the top plate (11); The transparent light guide (3), the side plates (12) and the lamp board support plate (13) enclose an installation space (4) for installing the light-emitting lamp board (2).
8. The arched light source device according to claim 1, characterized in that, A total reflection coating is provided on the bottom surface of the top plate (11) and the side surface of the side plate (12) close to the light-emitting lamp board (2).
9. The arched light source device according to claim 1, characterized in that, A diffusion film is provided on the light-emitting surface (301).
10. A detection device, characterized in that, Including a detection camera (5) and an arched light source device according to any one of claims 1 to 9; The detection camera (5) is used to take pictures of the workpiece illuminated by the arched light source device.