Linear light source device and visual inspection device

Abstract

The utility model relates to the field of light source structures, and discloses a linear light source device and a visual inspection device, which comprise a linear light source body and a dimming assembly pivoted with the linear light source body, the dimming assembly comprises a first side plate and a second side plate which are arranged in a spaced mode, the side face, close to the second side plate, of the first side plate is a first total reflection face, and the side face, close to the first side plate, of the second side plate is a second total reflection face. The linear light source body is provided with a strip-shaped light outlet, the strip-shaped light outlet is located between the first total reflection face and the second total reflection face, and the rotation angle of the dimming assembly is adjustable. According to the linear light source device, the light emitting direction can be changed without integrally rotating the linear light source body, and the linear light source device can be installed at a narrower position.

Description

Technical Field

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

[0002] With the advancement of technology, applying machine vision to identify minute defects is a current trend. Among these methods, using a linear light source to illuminate the object under test and then scanning it is a common visual inspection technique.

[0003] Linear light sources typically consist of a spotlight bar, a strip light panel, and a housing. The strip light panel is installed in the housing and projects light onto the spotlight bar. The light then travels through the spotlight bar and onto the workpiece. However, conventional linear light sources have a single illumination direction, often requiring adjustment by rotating the entire linear light source. But when the installation space is limited, the linear light source may be unable to be rotated.

[0004] In view of this, there is a need to design a linear light source device and a visual inspection device that can change the light output direction without rotating the entire linear light source, and the linear light source device can be installed in a narrower position.

[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 linear light source device and a visual inspection device, which can change the light output direction without rotating the entire linear light source body, and the linear light source device can be installed in a narrower position.

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

[0008] A linear light source device includes a linear light source body and a dimming component pivotally connected to the linear light source body;

[0009] The dimming component includes a first side plate and a second side plate spaced apart. The side of the first side plate closest to the second side plate is a first total reflection surface, and the side of the second side plate closest to the first side plate is a second total reflection surface.

[0010] The linear light source body has a strip-shaped light outlet, which is located between the first total reflection surface and the second total reflection surface, and the dimming component has an adjustable rotation angle.

[0011] Optionally, the dimming assembly includes a first end plate and a second end plate, wherein the first end plate, the first side plate, the second end plate, and the second side plate form a rectangular light-emitting hole;

[0012] The light emitted from the linear light source body is reflected by the first total reflection surface or the second total reflection surface and then exits through the rectangular light-emitting aperture.

[0013] Optionally, the dimming component is rotatably connected to the linear light source body via a rotating shaft, and the dimming component is also provided with an arc-shaped limiting groove around the rotating shaft;

[0014] The linear light source body is provided with a limiting post that extends into the arc-shaped limiting groove.

[0015] Optionally, the linear light source device further includes a rotary drive device for driving the dimming component to rotate about the rotation axis.

[0016] Optionally, the first total reflection surface is parallel to the second total reflection surface.

[0017] Optionally, the first total reflection surface and the second total reflection surface are arranged in an inverted V-shape, and the opening of the inverted V-shape becomes wider the further away from the linear light source body.

[0018] Optionally, a filter can be detachably installed at the opening of the rectangular light-emitting aperture;

[0019] The opening of the rectangular light-emitting hole forms a mounting groove, and the filter is installed in the mounting groove.

[0020] A visual inspection device includes a linear light source device as described in any of the preceding claims.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The linear light source device provided by this utility model includes a linear light source body and a dimming component pivotally connected to the linear light source body. The dimming component can rotate relative to the linear light source body to adjust the rotation angle, so that the first total reflection surface or the second total reflection surface reflects the light emitted by the linear light source body and changes the direction of light emission. In addition, the linear light source device can be installed in a narrower position and still work normally, effectively expanding the installation methods of the linear light source device.

[0023] 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

[0024] 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.

[0025] Figure 1 This is a three-dimensional schematic diagram of the linear light source device provided in the embodiment of this utility model;

[0026] Figure 2 yes Figure 1 A side view of the provided linear light source device;

[0027] Figure 3 yes Figure 2 A schematic cross-sectional view of the provided linear light source device along line AA;

[0028] Figure 4 This is a three-dimensional schematic diagram of a linear light source device with the dimming component in its original position according to an embodiment of the present invention;

[0029] Figure 5 yes Figure 4 A side view of the provided linear light source device;

[0030] Figure 6 yes Figure 5 A schematic cross-sectional view of the provided linear light source device along line BB;

[0031] Figure 7 This is a three-dimensional structural diagram of a linear light source device with a filter installed according to an embodiment of the present invention.

[0032] Reference numerals in the attached drawings: 1. Linear light source body; 101. Strip-shaped light outlet; 102. Limiting post; 2. Dimming assembly; 21. First side plate; 211. First total reflection surface; 22. Second side plate; 221. Second total reflection surface; 23. First end plate; 24. Second end plate; 201. Rectangular light outlet hole; 202. Arc-shaped limiting groove; 203. Mounting groove; 3. Rotation shaft; 4. Filter. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] Example 1

[0043] In view of the shortcomings of existing linear light source devices, the applicant, based on years of 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 solution to the shortcomings of the existing technology and make the linear light source device more practical. After continuous research, design, and repeated prototype production and improvement, this utility model with real practical value was finally created.

[0044] Please refer to Figures 1 to 6 This utility model provides a linear light source device, including a linear light source body 1 and a dimming component 2 pivotally connected to the linear light source body 1.

[0045] The linear light source body 1 is a conventional linear light source structure, including a focusing rod, a strip light panel and a housing. The housing has a strip light outlet 101. The focusing rod is installed in the strip light outlet 101, and the strip light panel is used to emit light to the focusing rod.

[0046] The dimming assembly 2 includes a first side plate 21 and a second side plate 22 spaced apart. The side of the first side plate 21 closest to the second side plate 22 is a first total reflection surface 211, and the side of the second side plate 22 closest to the first side plate 21 is a second total reflection surface 221. The linear light source body 1 has a strip-shaped light outlet 101, which is located between the first total reflection surface 211 and the second total reflection surface 221. The dimming assembly 2 has an adjustable rotation angle.

[0047] The linear light source device in this embodiment includes a linear light source body 1 and a dimming component 2 pivotally connected to the linear light source body 1. The dimming component 2 can rotate relative to the linear light source body 1 to adjust the rotation angle, thereby causing the first total reflection surface 211 or the second total reflection surface 221 to reflect the light emitted by the linear light source body 1, thus changing the direction of light emission. The linear light source device can be installed in narrower locations and still operate normally, effectively expanding the installation methods of the linear light source device. For example, using the linear light source device in this embodiment, it can obviously be installed closer to the wall in locations with narrower installation spaces, which helps to reduce the installation volume of the equipment.

[0048] Optionally, the dimming assembly 2 includes a first end plate 23 and a second end plate 24. The first end plate 23, the first side plate 21, the second end plate 24, and the second side plate 22 form a rectangular light-emitting hole 201. The first end plate 23, the first side plate 21, the second end plate 24, and the second side plate 22 are connected end-to-end in sequence to form a rectangular frame, and a through rectangular light-emitting hole 201 is formed inside the rectangular frame. The first end plate 23 and the second end plate 24 can keep the relative positions of the first side plate 21 and the second side plate 22 stationary.

[0049] The light emitted from the linear light source body 1 is reflected by the first total reflection surface 211 or the second total reflection surface 221 and then exits through the rectangular light exit aperture 201. For example, as Figure 3 As shown, when the dimming component 2 is rotated to the right, the light will be emitted at an angle to the right; similarly, when the dimming component 2 is rotated to the left, the light will be emitted at an angle to the left. Figures 4 to 6 As shown, when the dimming component 2 remains in its original position, the light will be emitted vertically upwards.

[0050] Optionally, the dimming component 2 is rotatably connected to the linear light source body 1 via a rotating shaft 3. An arc-shaped limiting groove 202 is also provided on the dimming component 2 around the rotating shaft 3. The linear light source body 1 is provided with a limiting post 102 extending into the arc-shaped limiting groove 202. In this embodiment, a rotating shaft 3 is installed at each of the opposite ends of the linear light source body 1, thereby ensuring smooth and stable rotation of the dimming component 2. The limiting post 102 and the arc-shaped limiting groove 202 can limit the rotation angle of the dimming component 2, preventing the dimming component 2 from completely blocking the strip light outlet 101, thus preventing light from illuminating the workpiece.

[0051] Optionally, the linear light source device also includes a rotation drive device for driving the dimming component 2 to rotate around the rotation axis 3. For example, the rotation drive device can be an electric drive device, that is, the rotation angle of the dimming component 2 can be controlled by the electric drive device, thereby controlling the light output direction more flexibly.

[0052] Optionally, the first total reflection surface 211 is parallel to the second total reflection surface 221.

[0053] In another specific embodiment, the first total reflection surface 211 and the second total reflection surface 221 are arranged in an inverted V-shape, with the opening of the inverted V-shape becoming wider the further away from the linear light source body 1. This effectively prevents the dimming component 2 from blocking or obstructing light. For example, when the first total reflection surface 211 reflects light emitted from the strip-shaped light outlet 101, the second total reflection surface 221 blocks the light-emitting side of the first total reflection surface 211 and partially obstructs the light, resulting in insufficient illumination and affecting the actual detection effect; the inverted V-shape structure in this embodiment effectively avoids this situation.

[0054] Optionally, such as Figure 7 The dimming component 2 has a rectangular light-emitting hole 201 at the end away from the linear light source body 1. A filter 4 is detachably installed at the opening of the rectangular light-emitting hole 201. The opening of the rectangular light-emitting hole 201 forms a mounting groove 203, in which the filter 4 is installed.

[0055] Example 2

[0056] This embodiment discloses a visual inspection device, including a linear light source device as described in any of the preceding embodiments.

[0057] 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 linear light source device, comprising a linear light source body (1), characterized in that, It also includes a dimming assembly (2) pivotally connected to the linear light source body (1); The dimming assembly (2) includes a first side plate (21) and a second side plate (22) spaced apart. The side of the first side plate (21) near the second side plate (22) is a first total reflection surface (211), and the side of the second side plate (22) near the first side plate (21) is a second total reflection surface (221). The linear light source body (1) has a strip-shaped light outlet (101), which is located between the first total reflection surface (211) and the second total reflection surface (221). The dimming component (2) has an adjustable rotation angle.

2. The linear light source device according to claim 1, characterized in that, The dimming assembly (2) includes a first end plate (23) and a second end plate (24), wherein the first end plate (23), the first side plate (21), the second end plate (24) and the second side plate (22) form a rectangular light-emitting hole (201); The light emitted from the linear light source body (1) is reflected by the first total reflection surface (211) or the second total reflection surface (221) and then emitted from the rectangular light-emitting aperture (201).

3. The linear light source device according to claim 1, characterized in that, The dimming component (2) is rotatably connected to the linear light source body (1) via a rotating shaft (3), and an arc-shaped limiting groove (202) is also provided on the dimming component (2) around the rotating shaft (3); The linear light source body (1) is provided with a limiting post (102) that extends into the arc-shaped limiting groove (202).

4. The linear light source device according to claim 3, characterized in that, It also includes a rotary drive device for driving the dimming assembly (2) to rotate around the rotating shaft (3).

5. The linear light source device according to claim 1, characterized in that, The first total reflection surface (211) is parallel to the second total reflection surface (221).

6. The linear light source device according to claim 1, characterized in that, The first total reflection surface (211) and the second total reflection surface (221) are in an inverted V-shape structure. The further away from the linear light source body (1), the wider the opening of the inverted V-shape structure becomes.

7. The linear light source device according to claim 2, characterized in that, The rectangular light-emitting aperture (201) has a filter (4) that can be detachably installed at its opening; The opening of the rectangular light-emitting hole (201) forms a mounting groove (203), and the filter (4) is installed in the mounting groove (203).

8. A visual inspection device, characterized in that, It includes a linear light source device as described in any one of claims 1 to 7.

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