Light source device and visual inspection device
By using a beam splitter prism in the light source device to divide the light into two perpendicular beams, the problem of only being able to emit light in one direction in the existing technology is solved, achieving the effect of illuminating two workpieces at the same time, improving detection efficiency and reducing costs.
Patent Information
- Application Number
- CN202423284401.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing light source devices can only emit light in one direction and cannot illuminate two workpieces in different locations at the same time, resulting in low efficiency and high cost of visual inspection.
Design a light source device that uses a beam splitter prism inside the housing to split the light emitted by the light-emitting component into two perpendicular beams, which illuminate two workpieces at different positions through the first and second light-emitting channels respectively. The light source device includes a housing, a beam splitter prism, and a light-emitting component.
This invention enables a single light source to illuminate two workpieces simultaneously, improving inspection efficiency and reducing costs.
Smart Images
Figure CN223897299U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of light source technology, and in particular to a light source device and a visual inspection device. Background Technology
[0002] Existing light sources, including a housing and LEDs installed inside, have the housing forming a light-emitting channel. The light emitted by the LEDs is emitted along this channel, illuminating the workpiece to be inspected. However, the light source can only emit light in one direction to illuminate the workpiece, and cannot emit light from different directions to illuminate workpieces at different locations. This is detrimental to improving the efficiency of visual inspection and also hinders cost savings.
[0003] Therefore, it is necessary to design a light source device and a vision inspection device that can simultaneously illuminate workpieces at two different locations.
[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 invention provides a light source device and a visual inspection device that can simultaneously illuminate workpieces at two different locations.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A light source device, comprising:
[0008] The housing has a first light-emitting channel and a second light-emitting channel that are interconnected, and the first light-emitting channel is perpendicular to the second light-emitting channel;
[0009] A beam splitter is installed in the housing and positioned at the intersection of the first light-emitting channel and the second light-emitting channel;
[0010] A light-emitting component is installed in the housing to emit light into the beam splitter, which splits the light emitted by the light-emitting component into two beams that are respectively directed into the first light-emitting channel and the second light-emitting channel.
[0011] Optionally, a first focusing rod is provided at the light-emitting end of the first light-emitting channel, and the first focusing rod is perpendicular to the extension direction of the first light-emitting channel.
[0012] Optionally, the diameter of the first focusing rod is greater than the width of the first light-emitting channel, and the first focusing rod can be detachably embedded into the light-emitting end of the first light-emitting channel.
[0013] Optionally, a second focusing rod is provided at the light-emitting end of the second light-emitting channel, and the second focusing rod is perpendicular to the extension direction of the second light-emitting channel.
[0014] Optionally, the beam splitter is a cubic beam splitter, which is composed of two right-angled triangular prisms, and the angle between the inclined surface of the right-angled triangular prism and the extension direction of the first light-emitting channel is 45°.
[0015] A beam-splitting film is coated on the inclined surface of one of the right-angle prisms.
[0016] Optionally, the light-emitting component is a parallel light source capable of emitting parallel light into the beam splitter, wherein the light emission direction of the parallel light source is inclined at 45° relative to the inclined surface of the right-angled triangular prism.
[0017] Optionally, a heat sink is provided on the housing, and the light-emitting component includes a circuit board attached to the heat sink and LED beads installed on the side of the circuit board near the beam splitter, with a plurality of LED beads arranged at intervals along a straight line, and each LED bead facing the beam splitter.
[0018] Optionally, the light source device also includes a fan, the air outlet of which faces the heat sink.
[0019] Optionally, the housing has a first elastic protrusion and a second elastic protrusion disposed opposite to each other, and the elongated gap between the first elastic protrusion and the second elastic protrusion forms the light outlet of the first light-emitting channel;
[0020] The first focusing rod is elastically clamped by the first elastic protrusion and the second elastic protrusion.
[0021] A visual inspection device, equipped with a light source 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 light source device and visual inspection device provided by this utility model split the light emitted by the light-emitting component in the housing into two beams through a beam splitter. The two beams are emitted along a first and a second mutually perpendicular light-emitting channel, thereby illuminating two workpieces at different positions. The light source device and visual inspection device in this embodiment can inspect two workpieces at the same time without the need for two light source devices, which improves inspection efficiency and reduces cost.
[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 front view schematic diagram of the light source device provided in an embodiment of this utility model;
[0027] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of the middle AA section;
[0028] Figure 3 This is a cross-sectional structural schematic diagram of the light source device provided in an embodiment of the present invention.
[0029] Reference numerals: 1. Housing; 101. First elastic protrusion; 102. Second elastic protrusion; 11. First light emission channel; 12. Second light emission channel; 2. Beam splitter; 3. Light emission component; 4. First focusing rod; 5. Second focusing rod; 6. Heat sink; 7. Fan. Detailed Implementation
[0030] 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.
[0031] 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.
[0032] 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.
[0033] 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.
[0034] 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.
[0035] 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.
[0036] 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.
[0037] 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.
[0038] 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.
[0039] Example 1
[0040] In view of the deficiencies of the existing 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 technology that could solve the deficiencies of the existing technology and make the 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.
[0041] This embodiment of the invention provides a light source device that enables a single light source device to illuminate two workpieces simultaneously. Furthermore, this embodiment eliminates the need for two separate light source devices to illuminate two workpieces at different locations, thus saving costs.
[0042] Please refer to Figures 1 to 3 The light source device includes: a housing 1 having a first light-emitting channel 11 and a second light-emitting channel 12 that are interconnected, with the first light-emitting channel 11 perpendicular to the second light-emitting channel 12; a beam splitter 2, installed in the housing 1 and positioned at the intersection of the first light-emitting channel 11 and the second light-emitting channel 12; and a light-emitting component 3, installed in the housing 1 for emitting light to the beam splitter 2, wherein the beam splitter 2 splits the light emitted by the light-emitting component 3 into two beams that are respectively injected into the first light-emitting channel 11 and the second light-emitting channel 12.
[0043] Specifically, in this embodiment, the light-emitting component 3 in the housing 1 emits light towards the beam splitter 2. The beam splitter 2 divides the light emitted by the light-emitting component 3 into two beams, which are respectively injected into the first light-emitting channel 11 and the second light-emitting channel 12, thereby achieving... Figure 2 The diagram shows how to illuminate two workpieces at different locations. In other words, the light source device can simultaneously provide illumination to workpieces at different locations without the need for two separate light source devices to illuminate the workpieces at different locations, which helps to reduce costs.
[0044] Optionally, a first focusing rod 4 is provided at the light-emitting end of the first light-emitting channel 11, and the first focusing rod 4 is perpendicular to the extending direction of the first light-emitting channel 11. Specifically, as shown... Figure 2 As shown, the first light-emitting channel 11 extends horizontally to the right, and the center line of the first light-concentrating rod 4 is perpendicular to the extension direction of the first light-emitting channel 11; the first light-concentrating rod 4 concentrates the light, thereby forming a linear light spot on the surface of the workpiece, that is, the light source device in this embodiment is actually a linear light source.
[0045] Optionally, the diameter of the first focusing rod 4 is larger than the width of the first light-emitting channel 11, which can prevent light leakage and better fix the first focusing rod 4; the first focusing rod 4 is detachably embedded into the light-emitting end of the first light-emitting channel 11. The first focusing rod 4 is detachable and replaceable, thereby avoiding the situation where the entire light source device needs to be replaced due to damage to the first focusing rod 4, which helps to reduce maintenance costs. In addition, focusing rods 4 of different diameters can be replaced to adjust the focusing effect.
[0046] Optionally, a second focusing rod 5 is provided at the light-emitting end of the second light-emitting channel 12, and the second focusing rod 5 is perpendicular to the extending direction of the second light-emitting channel 12. Similarly, as Figure 2 As shown, the second light-emitting channel 12 extends vertically downwards, and the center line of the second light-emitting rod 5 is perpendicular to the extension direction of the second light-emitting channel 12. The first light-emitting rod 4 and the second light-emitting rod 5 are parallel to each other. The second light-emitting rod 5 has a light-focusing effect, thereby forming a linear light spot on the surface of the workpiece, further improving the light intensity, and making it easier for the inspection camera to detect surface defects of the workpiece.
[0047] Optionally, the beam splitter 2 is a cubic beam splitter, which is composed of two right-angled triangular prisms, and the angle between the inclined surface of the right-angled triangular prism and the extension direction of the first light-emitting channel 11 is 45°; a beam-splitting film is coated on the inclined surface of one of the right-angled triangular prisms. It should be noted that the use of two right-angled triangular prisms in a cubic beam splitter is existing technology and will not be described further. It should also be noted that the beam splitter 2 can also be a flat beam splitter, which needs to be tilted at 45°.
[0048] Optionally, the light-emitting component 3 is a parallel light source capable of emitting parallel light towards the beam splitter 2. The light emission direction of the parallel light source is tilted at 45° relative to the inclined plane of the right-angled triangular prism, such as... Figure 2 As shown.
[0049] Optionally, a heat sink 6 is provided on the housing 1, and the light-emitting component 3 includes a circuit board attached to the heat sink 6 and LED beads installed on the side of the circuit board near the beam splitter 2, with several LED beads arranged at intervals along a straight line, and each LED bead facing the beam splitter 2. It should be noted that the arrangement direction of the LED beads is parallel to the center line of the first focusing rod 4.
[0050] Optionally, the light source device also includes a fan 7, the air outlet of which faces the heat sink 6 to further improve the heat dissipation effect, thereby allowing for the installation of larger power LEDs and improving the light output effect.
[0051] Optionally, the housing 1 has a first elastic protrusion 101 and a second elastic protrusion 102 disposed opposite to each other, and the elongated gap between the first elastic protrusion 101 and the second elastic protrusion 102 forms the light outlet of the first light-emitting channel 11; the first light-concentrating rod 4 is elastically clamped by the first elastic protrusion 101 and the second elastic protrusion 102.
[0052] Specifically, the arrangement of the first elastic protrusion 101 and the second elastic protrusion 102 facilitates the installation of the first focusing rod 4, reduces the difficulty of installation, and makes the installation of the first focusing rod 4 more convenient and faster. Preferably, the housing 1 has a main body, and a heat insulation plate is provided between the first elastic protrusion 101 and the main body, and a heat insulation plate is provided between the second elastic protrusion 102 and the main body, so as to reduce the degree of thermal deformation of the first elastic protrusion 101 and the second elastic protrusion 102 and keep the first focusing plate 4 in a suitable position. Several first exhaust grooves are provided at intervals on the side of the heat insulation plate near the main body, and several second exhaust grooves are provided on the side of the heat insulation plate away from the main body. A row of heat insulation through holes is provided in the middle of the heat insulation plate, and the heat insulation through holes are located between the first exhaust grooves and the second exhaust grooves. That is, on the heat insulation plate between the first elastic protrusion 101 and the main body, a row of first exhaust grooves, a row of heat insulation through holes, and a row of second exhaust grooves are arranged at intervals from top to bottom.
[0053] Example 2
[0054] This embodiment discloses a visual inspection device equipped with a light source device as described in any of the preceding embodiments.
[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 light source device, characterized in that, include: The housing (1) has a first light-emitting channel (11) and a second light-emitting channel (12) that are interconnected, and the first light-emitting channel (11) is perpendicular to the second light-emitting channel (12); A beam splitter (2) is installed in the housing (1) and is located at the intersection of the first light-emitting channel (11) and the second light-emitting channel (12); The light-emitting component (3) is installed in the housing (1) to emit light to the beam splitter (2), which splits the light emitted by the light-emitting component (3) into two beams that are respectively injected into the first light-emitting channel (11) and the second light-emitting channel (12).
2. The light source device according to claim 1, characterized in that, The first light-emitting channel (11) is provided with a first light-concentrating rod (4) at its light-emitting end, and the first light-concentrating rod (4) is perpendicular to the extension direction of the first light-emitting channel (11).
3. The light source device according to claim 2, characterized in that, The diameter of the first focusing rod (4) is greater than the width of the first light-emitting channel (11), and the first focusing rod (4) is detachably embedded into the light-emitting end of the first light-emitting channel (11).
4. The light source device according to claim 1, characterized in that, The light-emitting end of the second light-emitting channel (12) is provided with a second focusing rod (5), and the second focusing rod (5) is perpendicular to the extension direction of the second light-emitting channel (12).
5. The light source device according to claim 1, characterized in that, The beam splitter (2) is a cubic beam splitter, which is composed of two right-angled triangular prisms, and the angle between the inclined surface of the right-angled triangular prism and the extension direction of the first light-emitting channel (11) is 45°. A beam-splitting film is coated on the inclined surface of one of the right-angle prisms.
6. The light source device according to claim 5, characterized in that, The light-emitting component (3) is a parallel light source that can emit parallel light into the beam splitter (2), and the light emission direction of the parallel light source is inclined at 45° relative to the inclined surface of the right-angled triangular prism.
7. The light source device according to claim 1, characterized in that, The housing (1) is provided with a heat sink (6), and the light-emitting component (3) includes a circuit board attached to the heat sink (6) and LED beads installed on the side of the circuit board near the beam splitter (2), and a number of LED beads are arranged at intervals along a straight line, and each LED bead is facing the beam splitter (2).
8. The light source device according to claim 7, characterized in that, It also includes a fan (7), the air outlet of which faces the heat sink (6).
9. The light source device according to claim 2, characterized in that, The housing (1) has a first elastic protrusion (101) and a second elastic protrusion (102) disposed opposite to each other, and the elongated gap between the first elastic protrusion (101) and the second elastic protrusion (102) forms the light outlet of the first light-emitting channel (11); The first focusing rod (4) is elastically clamped by the first elastic protrusion (101) and the second elastic protrusion (102).
10. A visual inspection device, characterized in that, The light source device is installed as described in any one of claims 1 to 9.