CN220471440U - Optical path adjustable annular light source and detection system - Google Patents
Optical path adjustable annular light source and detection system Download PDFInfo
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- CN220471440U CN220471440U CN202321636069.4U CN202321636069U CN220471440U CN 220471440 U CN220471440 U CN 220471440U CN 202321636069 U CN202321636069 U CN 202321636069U CN 220471440 U CN220471440 U CN 220471440U
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Abstract
The utility model discloses an optical path adjustable annular light source and a detection system, wherein the optical path adjustable annular light source comprises a lens component and a plurality of light-emitting units, the plurality of light-emitting units are distributed in an annular shape, and the lens component is arranged on the light-emitting side of the light-emitting units; the plurality of light-emitting units are surrounded and formed with an observation port; the lens assembly can rotate relative to the observation port and is provided with a first position and a second position; when only one workpiece is required to be detected, the lens assembly is positioned at a first position, and each spherical lens is opposite to the corresponding light-emitting unit, so that light rays emitted by the light-emitting units form a first light spot together; when a plurality of workpieces need to be detected, the lens assembly is arranged at a second position, and each spherical lens is eccentric relative to the corresponding light-emitting unit, so that light rays emitted by each light-emitting unit are outwards refracted, a plurality of second light spots with different positions are formed, and the detection requirements of the plurality of workpieces are met; therefore, the optical path adjustable annular light source and the detection system have the advantages of wide application range and small volume.
Description
Technical Field
The utility model relates to the technical field of annular light source structures, in particular to an annular light source with an adjustable light path and a detection system.
Background
The annular light source is a light source commonly used for detecting the workpiece and is used for highlighting the surface defect characteristics of the workpiece and is applied to scenes such as product appearance detection, part surface defect detection and the like. Specifically, the annular light source is cone-shaped by the LED lamp pearl array, can give out light with certain inclination, and then lightens the work piece in the appointed region with the form of diffuse reflection.
In an actual detection scene, a need exists for detecting a plurality of workpieces at a time, at this time, a conventional annular light source cannot illuminate a plurality of workpieces at the same time because the angle of the lamp bead array is fixed and the light emitting angle is limited, and a plurality of annular light sources are required to be arranged so as to meet the detection needs of the plurality of workpieces; however, with the above solution, the additional ring light source takes up additional space in the inspection of a single workpiece application. Therefore, on the premise of limited space, the annular light source cannot meet the detection requirements of a plurality of workpieces at the same time, and has the defect of small application range.
Therefore, it is necessary to develop a new annular light source to solve the technical problems that the conventional annular light source cannot be compatible with a wide application range and a small volume.
Disclosure of Invention
The utility model aims to provide an annular light source with an adjustable light path and a detection system, so as to solve the technical problems that the conventional annular light source cannot be compatible with a wide application range and is small in size.
To achieve the purpose, the utility model adopts the following technical scheme:
the annular light source with the adjustable light path comprises a lens component and a plurality of light-emitting units, wherein the light-emitting units are distributed in an annular shape, and the lens component is arranged on the light-emitting side of the light-emitting units;
the plurality of light-emitting units are surrounded to form an observation port; the lens assembly can rotate relative to the observation port and is provided with a first position and a second position; the lens assembly comprises spherical lenses arranged corresponding to the positions of the light emitting units;
when the lens component is positioned at a first position, the spherical lens is opposite to the corresponding light-emitting units, so that light rays emitted by a plurality of light-emitting units jointly form a first light spot;
when the lens assembly is positioned at the second position, the spherical lens is eccentrically arranged relative to the light-emitting units, so that light rays emitted by the light-emitting units respectively form a plurality of second light spots.
Optionally, the optical path adjustable ring light source includes:
the light-emitting units are arranged on the first mounting seat in an annular distribution;
the spherical lenses are arranged on the second mounting seat in an annular distribution;
the first mounting seat is provided with a first avoiding hole corresponding to the position of the observation port, and the second mounting seat is provided with a second avoiding hole corresponding to the position of the observation port.
Optionally, a lens groove is formed in one side, facing the first mounting seat, of the second mounting seat, a lens carrier plate is mounted on the groove edge of the lens groove, and the second avoidance hole is formed in the groove bottom of the lens groove;
the lens carrier plate is provided with mounting holes corresponding to the positions of the spherical lenses, one end of each spherical lens is abutted with the groove edge of each mounting hole, and the other end of each spherical lens is abutted with the hole edge of each second avoidance hole.
Optionally, the lens carrier plate is rotatably connected with the second mount.
Optionally, the second mount is rotatably connected with the first mount.
Optionally, the light emitting direction of the light emitting unit is obliquely arranged relative to the opening direction of the viewing port.
A detection system comprising a camera and an optical path adjustable ring light source as described above.
Optionally, the camera comprises a first camera disposed towards the first spot, and the viewing port is located between the first camera and the first spot.
Optionally, the camera comprises a plurality of second cameras arranged around the optical path adjustable annular light source, and the second cameras are in one-to-one correspondence with the second light spots; the second camera is disposed toward the corresponding second spot.
Compared with the prior art, the utility model has the following beneficial effects:
when only one workpiece is detected, the lens component is positioned at the first position, and each spherical lens corresponds to the corresponding light-emitting unit, so that light rays emitted by the light-emitting units form a first light spot together; when a plurality of workpieces need to be detected, the lens assembly is arranged at a second position, and each spherical lens is eccentric relative to the corresponding light-emitting unit, so that light rays emitted by each light-emitting unit are outwards refracted, a plurality of second light spots with different positions are formed, and the detection requirements of the plurality of workpieces are met; therefore, the annular light source with the adjustable light path and the detection system can adjust the light spot projection position of the light-emitting unit through the rotary lens assembly, meet the workpiece detection requirements under different conditions, and simultaneously do not need to additionally arrange a plurality of annular light sources, and have the advantages of wide application range and small volume.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and are not intended to limit the scope of the utility model, since any modification, variation in proportions, or adjustment of the size, etc. of the structures, proportions, etc. should be considered as falling within the spirit and scope of the utility model, without affecting the effect or achievement of the objective.
FIG. 1 is a schematic diagram of the overall structure of an adjustable optical path ring light source according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of an explosion structure of an annular light source with adjustable light path according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a first structure of a detection system according to an embodiment of the present utility model;
fig. 4 is a second schematic structural diagram of the detection system according to the embodiment of the present utility model.
Illustration of: 10. a light emitting unit; 20. a lens assembly; 21. a spherical lens; 30. a first mount; 31. a first avoidance hole; 40. a second mounting base; 41. a second avoidance hole; 42. a lens groove; 43. a lens carrier plate; 44. a mounting hole; 50. an observation port; 61. a first light spot; 62. a second light spot; 71. a first camera; 72. and a second camera.
Detailed Description
In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions in the embodiments of the present utility model are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. It is noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
Referring to fig. 1 to 4, fig. 1 is a schematic overall structure of an optical path adjustable ring light source according to an embodiment of the present utility model, fig. 2 is an exploded structure of an optical path adjustable ring light source according to an embodiment of the present utility model, fig. 3 is a schematic first structure of a detection system according to an embodiment of the present utility model, and fig. 4 is a schematic second structure of a detection system according to an embodiment of the present utility model.
Example 1
The optical path adjustable annular light source is applied to single workpiece detection or multiple workpiece detection scenes, and corresponding modes can be selected according to detection requirements.
As shown in fig. 1 and fig. 2, the optical path adjustable annular light source in the embodiment includes a lens assembly 20 and a plurality of light emitting units 10, the light emitting units 10 may be LED lamp beads, the lamp color of the LED lamp beads is not limited, the plurality of light emitting units 10 are distributed in an annular shape, and the lens assembly 20 is disposed on the light emitting side of the light emitting units 10; the plurality of light-emitting units 10 are surrounded and formed with an observation opening 50, and each light-emitting unit 10 is arranged towards the same position, so that the light rays emitted by each light-emitting unit 10 are finally gathered at the same position; the lens assembly 20 can rotate relative to the viewing port 50 and has a first position and a second position; the lens assembly 20 includes a spherical lens 21 disposed corresponding to the position of each light emitting unit 10; as shown in fig. 3, when the lens assembly 20 is in the first position, the spherical lens 21 is opposite to the corresponding light emitting unit 10, so that the light rays emitted by the light emitting units 10 form a first light spot 61 together; as shown in fig. 4, when the lens assembly 20 is in the second position, the spherical lens 21 is disposed eccentrically with respect to the light emitting units 10, so that the light emitted from each light emitting unit 10 forms a plurality of second light spots 62, respectively.
Specifically, when only one workpiece needs to be detected, the lens assembly 20 is located at the first position, and each spherical lens 21 is opposite to the corresponding light emitting unit 10, so that the light rays emitted by the plurality of light emitting units 10 form a first light spot 61 together; when a plurality of workpieces need to be detected, the lens assembly 20 is positioned at the second position, and each spherical lens 21 is eccentric relative to the corresponding light-emitting unit 10, so that light rays emitted by each light-emitting unit 10 are outwards refracted, a plurality of second light spots 62 with different positions are formed, and the detection requirements of the plurality of workpieces are met; therefore, the light path adjustable annular light source can adjust the light spot projection position of the light emitting unit 10 through the rotary lens assembly 20, meets the workpiece detection requirements under different conditions, does not need to additionally arrange a plurality of annular light sources, and has the advantages of wide application range and small volume.
Further, the optical path adjustable annular light source comprises a first mounting seat 30 and a second mounting seat 40; the plurality of light emitting units 10 are mounted on the first mounting base 30 in a ring-shaped distribution; the plurality of spherical lenses 21 are mounted on the second mount 40 in an annular distribution; wherein, the first mounting seat 30 has a first avoidance hole 31 corresponding to the position of the observation port 50, and the second mounting seat 40 has a second avoidance hole 41 corresponding to the position of the observation port 50. As shown in fig. 2 and fig. 3, when the lens assembly 20 is located at the first position, the light emitted by each light emitting unit 10 passes through the spherical lens 21 to form a first light spot 61 together, and the camera can shoot the workpiece located at the first light spot 61 through the first avoidance hole 31 and the second avoidance hole 41.
Further, a lens groove 42 is formed on one side of the second mounting seat 40 facing the first mounting seat 30, a lens carrier plate 43 is mounted on the groove edge of the lens groove 42, and a second avoiding hole 41 is formed on the groove bottom of the lens groove 42; mounting holes 44 are formed in the lens carrier plate 43 at positions corresponding to the respective spherical lenses 21, one end of each spherical lens 21 is abutted against the groove edge of the mounting hole 44, and the other end of each spherical lens 21 is abutted against the hole edge of the second avoiding hole 41. Through the arrangement, the spherical lens 21 can be clamped on the lens carrier plate 43, and the spherical lens 21 can be ensured not to deviate by matching with the hole edge of the second avoidance hole 41; meanwhile, the arrangement of the mounting holes 44 enables light rays emitted by the light emitting unit 10 to be projected on the spherical lens 21, and the formation of light spots is not affected on the premise of ensuring the mounting accuracy of the spherical lens 21.
In an alternative embodiment, the lens carrier plate 43 is rotatably connected with the second mount 40. For example, N first screw holes distributed in a ring shape may be formed at the groove edge of the lens groove 42, N first screw holes are distributed in equal angles, 3N first connecting holes are correspondingly formed on the lens carrier plate 43, 3N first connecting holes are distributed in equal angles, and one group of first connecting holes is selected to be connected with the first screw holes through bolts, so that the angle between the lens carrier plate 43 and the second mounting seat 40 is changed. In other alternative embodiments, the second mount 40 may be rotatably coupled to the first mount 30.
In the present embodiment, as shown in fig. 2, the light emitting direction of the light emitting unit 10 is disposed obliquely with respect to the opening direction of the observation port 50.
In summary, the optical path adjustable annular light source provided in the embodiment has the advantages of wide application range and small volume.
Example two
The detection system provided in this embodiment includes a camera and the optical path adjustable ring light source in the first embodiment. In the first embodiment, a specific structure and technical effects related to the optical path adjustable ring light source are described, and the detection system in this embodiment refers to the structure and has the technical effects as well.
As a specific embodiment, as shown in fig. 3, the camera includes a first camera 71, the first camera 71 is disposed toward the first light spot 61, and the viewing port 50 is located between the first camera 71 and the first light spot 61; through the arrangement, the detection requirement of a single workpiece is met, and the device has the advantage of higher brightness.
As another specific embodiment, as shown in fig. 3, the camera includes a plurality of second cameras 72 disposed around the optical path adjustable ring light source, the second cameras 72 being in one-to-one correspondence with the second light spots 62; the second camera 72 is disposed towards the corresponding second spot 62; through the arrangement, the detection requirements of a plurality of workpieces are met.
It should be added that the camera may also include a first camera 71 and a plurality of second cameras 72 disposed around the optical path adjustable ring light source, where the positions of the first camera 71 and the second camera 72 are the same as those of the above embodiment, and the detection system can operate the first camera 71 when the lens assembly 20 is located at the first position, and operate the second camera 72 when the lens assembly 20 is located at the second position.
In summary, the detection system provided in the embodiment has the advantages of wide application range and small volume.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (9)
1. The annular light source with the adjustable light path is characterized by comprising a lens assembly (20) and a plurality of light-emitting units (10), wherein the light-emitting units (10) are distributed in an annular shape, and the lens assembly (20) is arranged on the light-emitting side of the light-emitting units (10);
a plurality of the light-emitting units (10) are surrounded and formed with an observation port (50); the lens assembly (20) is rotatable relative to the viewing port (50) and has a first position and a second position; the lens assembly (20) comprises a spherical lens (21) arranged corresponding to the position of each light-emitting unit (10);
when the lens assembly (20) is in a first position, the spherical lens (21) is opposite to the corresponding light-emitting units (10), so that light rays emitted by a plurality of the light-emitting units (10) form a first light spot (61) together;
when the lens assembly (20) is in the second position, the spherical lens (21) is eccentrically arranged relative to the light emitting units (10), so that light rays emitted by the light emitting units (10) respectively form a plurality of second light spots (62).
2. The light path-tunable annular light source of claim 1, comprising:
a first mount (30) on which a plurality of the light emitting units (10) are mounted in an annular distribution;
a second mount (40) on which a plurality of the spherical lenses (21) are mounted in an annular distribution;
the first mounting seat (30) is provided with a first avoiding hole (31) corresponding to the position of the observation port (50), and the second mounting seat (40) is provided with a second avoiding hole (41) corresponding to the position of the observation port (50).
3. The optical path adjustable annular light source according to claim 2, wherein a lens groove (42) is formed in one side, facing the first mounting seat (30), of the second mounting seat (40), a lens carrier plate (43) is mounted on the groove edge of the lens groove (42), and the second avoidance hole (41) is formed in the groove bottom of the lens groove (42);
mounting holes (44) are formed in the lens carrier plate (43) at positions corresponding to the spherical lenses (21), one ends of the spherical lenses (21) are abutted to the groove edges of the mounting holes (44), and the other ends of the spherical lenses (21) are abutted to the hole edges of the second avoidance holes (41).
4. A light path adjustable ring light source according to claim 3, wherein the lens carrier plate (43) is rotatably connected to the second mount (40).
5. A light path adjustable ring light source according to claim 3, wherein the second mount (40) is rotatably connected to the first mount (30).
6. An optical path adjustable ring light source according to claim 1, characterized in that the light emitting direction of the light emitting unit (10) is arranged obliquely with respect to the opening direction of the viewing port (50).
7. A detection system comprising a camera and an optical path-tunable annular light source as claimed in any one of claims 1 to 6.
8. A detection system according to claim 7, characterized in that the camera comprises a first camera (71), the first camera (71) being arranged towards the first spot (61) and the viewing port (50) being located between the first camera (71) and the first spot (61).
9. A detection system according to claim 7, wherein the camera comprises a plurality of second cameras (72) arranged around the light path adjustable ring light source, the second cameras (72) being in one-to-one correspondence with the second light spots (62); the second camera (72) is disposed towards the corresponding second spot (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321636069.4U CN220471440U (en) | 2023-06-26 | 2023-06-26 | Optical path adjustable annular light source and detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321636069.4U CN220471440U (en) | 2023-06-26 | 2023-06-26 | Optical path adjustable annular light source and detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220471440U true CN220471440U (en) | 2024-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321636069.4U Active CN220471440U (en) | 2023-06-26 | 2023-06-26 | Optical path adjustable annular light source and detection system |
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| Country | Link |
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| CN (1) | CN220471440U (en) |
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2023
- 2023-06-26 CN CN202321636069.4U patent/CN220471440U/en active Active
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