A light source and defect detection apparatus

Abstract

This utility model relates to the field of light source structure technology, and discloses a light source and defect detection device, comprising: a housing with a light-emitting hole; a light-emitting element installed in the housing to emit light into the light-emitting hole; and a sliding element slidably connected to the housing, having a dimming part for blocking the light-emitting hole; the dimming part is provided with at least two, with adjacent dimming parts arranged and connected along the sliding direction of the sliding element, and at least one dimming part is a condenser lens part and at least one dimming part is an arc-shaped diffuser plate part; the sliding element can slide relative to the housing so that different dimming parts block the light-emitting hole. This utility model's light source and defect detection device can reduce production costs and the installation volume of the light source while achieving different light emission effects.

Description

Technical Field

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

[0002] Currently, most common inspection light sources have only one type of light emission effect. However, with the development of society, light sources with only one type of light emission effect can neither meet the needs of inspecting different workpieces nor the needs of inspecting different surface defects on the same workpiece.

[0003] To achieve at least two light emission effects, existing light sources generally have a switching structure. The switching mechanism is a rotating mechanism that uses the cam principle or gear transmission to change the position of different light emission components. For example, a gear assembly drives the first and second light emission components to rotate, so that the first or second light emission component is aligned with the light emission aperture, thereby achieving the switching of different light emission effects. The aforementioned switching mechanism is large in size, complex in machining, and relatively heavy, which is not conducive to reducing production costs and reducing the installation volume of the light source.

[0004] Therefore, it is necessary to design a light source and defect detection device that can reduce production costs and installation volume of the light source while achieving different light output effects.

[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 and a defect detection device that can reduce production costs and the installation volume of the light source while achieving different light output effects.

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

[0008] A light source, comprising:

[0009] The shell has a light-emitting hole;

[0010] A light-emitting element is installed in the housing to emit light into the light-emitting hole;

[0011] A sliding member, slidably connected to the housing, has a dimming part for blocking the light-emitting hole; at least two dimming parts are provided, with two adjacent dimming parts arranged and connected along the sliding direction of the sliding member, and at least one dimming part is a condenser lens part and at least one dimming part is an arc-shaped diffuser plate part; the sliding member can slide relative to the housing so that different dimming parts block the light-emitting hole.

[0012] Optionally, one of the dimming units is a light-shielding unit, and the light-shielding unit, the arc-shaped diffuser unit, and the condenser lens unit are arranged in sequence;

[0013] The light-shielding part has a light-emitting slit.

[0014] Optionally, along the sliding direction parallel to the slider, the length of any of the dimming parts is greater than the length of the light-emitting aperture.

[0015] Optionally, the housing is provided with a first sliding groove and a second sliding groove on opposite sides, and the sliding member has a first sliding protrusion that is slidably connected to the first sliding groove and a second sliding protrusion that is slidably connected to the second sliding groove;

[0016] The first sliding groove and the second sliding groove are parallel to each other.

[0017] Optionally, a convex lens is also installed in the housing, the convex lens being located between the light-emitting element and the dimming unit.

[0018] Optionally, the light-emitting element includes a circuit board and LED beads mounted on the circuit board.

[0019] Optionally, the housing includes a first side plate, a second side plate, and a bottom heat dissipation plate;

[0020] The light-emitting element is mounted on the bottom heat sink plate.

[0021] Optionally, the slider is a one-piece structure;

[0022] The concave surface of the arc-shaped diffuser plate faces the light-emitting element, a diffuser film is provided on the outer convex surface of the arc-shaped diffuser plate, and a light-shielding film is provided on the light-shielding part.

[0023] Optionally, the slider is a transparent acrylic component.

[0024] A defect detection device includes a light source as described in any of the preceding claims.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The light source and defect detection device provided by this utility model has a housing forming a light-emitting hole. A light-emitting component is installed in the housing and emits light in the direction of the light-emitting hole. A sliding component is installed at the light-emitting end of the light-emitting hole. The sliding component is slidably connected to the housing and forms different dimming parts. The sliding component can slide relative to the housing, so that the arc-shaped diffuser or the condenser lens is aligned with the light-emitting hole, thereby changing the light emission effect. Moreover, the light source and defect detection device in this embodiment does not require a complex mechanical mechanism, is easy to adjust, and has a smaller installation volume.

[0027] 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

[0028] 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.

[0029] Figure 1 This is a top view schematic diagram of the light source provided in an embodiment of this utility model;

[0030] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of the light source along the CC line;

[0031] Figure 3 yes Figure 1 A schematic diagram of the cross-sectional structure of the light source along line BB;

[0032] Figure 4 yes Figure 1 A schematic diagram of the cross-sectional structure of the light source along line AA.

[0033] Reference numerals: 1. Housing; 101. Light emission hole; 102. First sliding groove; 103. Second sliding groove; 11. First side plate; 12. Second side plate; 13. Bottom heat sink; 2. Light emission component; 3. Sliding component; 301. First sliding protrusion; 302. Second sliding protrusion; 31. Condensing lens; 32. Arc-shaped diffuser plate; 33. Light shield; 331. Light emission slit; 4. Convex lens. Detailed Implementation

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] Example 1

[0044] In view of the aforementioned defects in existing light sources, 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, actively conducted research and innovation in order to create a light source that could overcome the defects in the existing technology and make the light source more practical. After continuous research, design, and repeated prototype production and improvement, this utility model with real practical value was finally created.

[0045] Please refer to Figures 1 to 4 This utility model embodiment provides a light source, including a housing 1, a light-emitting component 2, and a sliding component 3.

[0046] The housing 1 has a light-emitting hole 101, and a light-emitting element 2 is installed in the housing 1 to emit light into the light-emitting hole 101. A sliding element 3 is slidably connected to the housing 1 and has at least two dimming parts for blocking the light-emitting hole 101. Two adjacent dimming parts are arranged and connected along the sliding direction of the sliding element 3, and at least one dimming part is a condenser lens 31 and at least one dimming part is an arc-shaped diffuser plate 32. The sliding element 3 can slide relative to the housing 1 so that different dimming parts block the light-emitting hole 101. The sliding element 3 can slide relative to the housing 1, so that different dimming parts face the light-emitting hole 101, meaning that the light emitted from the light-emitting hole 101 needs to pass through the dimming parts before illuminating the surface of the workpiece. In this embodiment, threaded fasteners are generally used to fix the sliding element 3 to the housing 1 to prevent the sliding element 3 from sliding relative to the housing 1 during operation. The threaded fasteners are used to fix the current position of the sliding element 3; after the threaded fasteners are loosened, the sliding element 3 can slide relative to the housing 1.

[0047] In summary, in this embodiment, a light-emitting hole 101 is formed in the housing 1, and the light-emitting element 2 is installed in the housing 1 and emits light towards the light-emitting hole 101. A sliding element 3 is installed at the light-emitting end of the light-emitting hole 101. The sliding element 3 is slidably connected to the housing 1 and forms different dimming parts. The sliding element 3 can slide relative to the housing 1, so that the arc-shaped diffuser 32, the condenser lens 31, or other dimming parts are aligned with the light-emitting hole 101, thereby changing the light emission effect. In this embodiment, the light source does not require a complex mechanical mechanism, the adjustment of the sliding element 3 is simple, and the installation volume of the light source can be significantly reduced.

[0048] In actual use, the housing 1 is installed horizontally, and the sliding direction of the slider 3 is parallel to the horizontal plane. The steps for adjusting the slider 3 are as follows:

[0049] ① Confirm the desired lighting effect for the workpiece and loosen the fixing of the sliding part 3;

[0050] ② Adjust the position of the slider 3 in the horizontal direction so that a dimming part is directly opposite the light outlet 101, and the light emitted from the light outlet 101 can only be directed from the light outlet 101 to the specific dimming part.

[0051] ③ Re-secure the sliding component 3 with fasteners.

[0052] Optionally, one of the dimming parts is a light-shielding part 33, with the light-shielding part 33, the arc-shaped diffuser part 32, and the condenser lens part 31 arranged sequentially. The sliding member 3 can slide along the arrangement direction, thereby blocking the light-shielding part 33, the arc-shaped diffuser part 32, or the condenser lens part 31 from the opening of the light-emitting hole 101. A light-emitting slit 331 is provided on the light-shielding part 33. The light emitted from the light-emitting member 2 passes through the light-emitting slit 331 and forms a strip-shaped light spot on the surface of the workpiece, thereby facilitating the inspection of the workpiece.

[0053] Optionally, along the sliding direction parallel to the slider 3, the length of any dimming part is greater than the length of the light-emitting hole 101, so that any dimming part can block the opening of the light-emitting hole 101 and avoid light leakage interference.

[0054] Optionally, a first sliding groove 102 and a second sliding groove 103 are respectively provided on opposite sides of the housing 1. The sliding member 3 has a first sliding protrusion 301 slidably connected to the first sliding groove 102 and a second sliding protrusion 302 slidably connected to the second sliding groove 103; the first sliding groove 102 and the second sliding groove 103 are parallel to each other. In this embodiment, the first sliding protrusion 301 is installed in the first sliding groove 102 and the second sliding protrusion 302 is installed in the second sliding groove 103, which can make the sliding of the sliding member 3 more stable and effectively prevent the sliding member 3 from falling off the housing 1.

[0055] Optionally, a convex lens 4 is also installed in the housing 1, located between the light-emitting element 2 and a dimming part. The convex lens 4 has a light-focusing effect, increasing the intensity of the emitted light.

[0056] In this embodiment, the light-emitting element 2 includes a circuit board and LED beads mounted on the circuit board.

[0057] Optionally, the housing 1 includes a first side plate 11, a second side plate 12, and a bottom heat sink 13; the light emitting element 2 is mounted on the bottom heat sink 13 to avoid the light emitting element 2 from overheating.

[0058] Optionally, the slider 3 is an integral structure, which makes the structure of the slider 3 more stable and prevents significant deflection during sliding. The concave surface of the arc-shaped diffuser plate 32 faces the light-emitting element 2, thereby scattering the light outward, improving the illumination range and uniformity. A diffusion film is provided on the convex surface of the arc-shaped diffuser plate 32. A light-shielding film is provided on the light-shielding part 33. When the light-shielding part 33 is directly opposite the light-emitting hole 101, the light can only pass through the light-emitting slit 331.

[0059] Optionally, the slider 3 is a transparent acrylic component.

[0060] Example 2

[0061] This embodiment discloses a defect detection device, including a light source as described in any one of Embodiment 1.

[0062] The defect detection device also includes necessary components such as cameras.

[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, characterized by include: The housing (1) has a light-emitting hole (101); A light-emitting element (2) is installed in the housing (1) to emit light into the light-emitting hole (101); The sliding member (3) is slidably connected to the housing (1) and has a dimming part for blocking the light-emitting hole (101); at least two dimming parts are provided, and two adjacent dimming parts are arranged and connected along the sliding direction of the sliding member (3), and at least one dimming part is a condenser lens part (31) and at least one dimming part is an arc-shaped diffuser plate part (32); the sliding member (3) can slide relative to the housing (1) so that different dimming parts block the light-emitting hole (101).

2. The light source of claim 1, wherein One of the dimming units is a light-shielding unit (33), and the light-shielding unit (33), the arc-shaped diffuser unit (32), and the condenser lens unit (31) are arranged in sequence; The light-shielding part (33) is provided with a light-emitting slit (331).

3. The light source of claim 1, wherein Along the sliding direction parallel to the slider (3), the length of any of the dimming parts is greater than the length of the light-emitting hole (101).

4. The light source of claim 1, wherein The housing (1) has a first sliding groove (102) and a second sliding groove (103) respectively on opposite sides. The sliding member (3) has a first sliding protrusion (301) that is slidably connected to the first sliding groove (102) and a second sliding protrusion (302) that is slidably connected to the second sliding groove (103). The first sliding groove (102) and the second sliding groove (103) are parallel to each other.

5. The light source of claim 1, wherein, A convex lens (4) is also installed in the housing (1), and the convex lens (4) is located between the light-emitting element (2) and the dimming part.

6. The light source of claim 1, wherein, The light-emitting component (2) includes a circuit board and LED beads mounted on the circuit board.

7. The light source of claim 1, wherein The housing (1) includes a first side plate (11), a second side plate (12), and a bottom heat dissipation plate (13); The light-emitting element (2) is mounted on the bottom heat sink (13).

8. The light source of claim 2, wherein, The sliding component (3) is an integral structure; The concave surface of the arc-shaped diffuser plate (32) faces the light-emitting member (2), a diffuser film is provided on the outer convex surface of the arc-shaped diffuser plate (32), and a light-shielding film is provided on the light-shielding part (33).

9. The light source of claim 8, wherein, The sliding member (3) is a transparent acrylic component.

10. A defect detection apparatus characterized by comprising: It includes a light source as described in any one of claims 1 to 9.

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