CN217404120U - Light source device and product defect detection device - Google Patents
Light source device and product defect detection device Download PDFInfo
- Publication number
- CN217404120U CN217404120U CN202221198561.3U CN202221198561U CN217404120U CN 217404120 U CN217404120 U CN 217404120U CN 202221198561 U CN202221198561 U CN 202221198561U CN 217404120 U CN217404120 U CN 217404120U
- Authority
- CN
- China
- Prior art keywords
- light source
- plate
- arched
- light
- diffuse reflection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
The utility model relates to the technical field of defect detection, and discloses a light source device, which comprises a fixed frame, wherein a first reflecting plate and a second reflecting plate are arranged on the fixed frame, the first reflecting plate is provided with a first arched diffuse reflection surface, the second reflecting plate is provided with a second arched diffuse reflection surface, a first light source is arranged on one side of the bottom of the first arched diffuse reflection surface, a second light source is arranged on one side of the bottom of the second arched diffuse reflection surface, and a light outlet is arranged between the first light source and the second light source; the emergent light of the first light source is emitted into the first arched diffuse reflection surface and is reflected by the first arched diffuse reflection surface to be emitted from the light outlet; the emergent light of the second light source enters the second arched diffuse reflection surface, and is reflected by the second arched diffuse reflection surface and emitted from the light outlet. The light source device and the product defect detection device can effectively improve the detection speed of a product to be detected.
Description
Technical Field
The utility model relates to a defect detection technical field especially relates to a light source device and product defect detection device.
Background
The defect detection is particularly important in the production process of some products with higher requirements on surface quality, and because the detection mode purely depending on human eyes is difficult to meet the quality control requirements, the defect detection is mostly realized by adopting a machine vision method at present.
Currently, machine vision is generally provided with illumination light by emitting light from a light source. Generally, the outgoing light of the light source is divergent, so that the illumination of the light source on the surface of the product to be detected is low, more surface illumination light energy is difficult to provide, and the detection speed of the product to be detected is not favorably improved.
In view of this, it is desirable to design a light source device and a product defect detecting device to improve the surface illumination of the product to be detected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a light source device and product defect detection device solve above problem.
To achieve the purpose, the utility model adopts the following technical proposal:
a light source device comprises a fixed frame, wherein a first reflecting plate and a second reflecting plate are arranged on the fixed frame, the first reflecting plate is provided with a first arched diffuse reflection surface, the second reflecting plate is provided with a second arched diffuse reflection surface, a first light source is arranged on one side of the bottom of the first arched diffuse reflection surface, a second light source is arranged on one side of the bottom of the second arched diffuse reflection surface, and a light outlet is formed between the first light source and the second light source;
the emergent light of the first light source is emitted into the first arched diffuse reflection surface and is reflected by the first arched diffuse reflection surface to be emitted from the light outlet;
the emergent light of the second light source is emitted into the second arched diffuse reflection surface and is reflected by the second arched diffuse reflection surface to be emitted from the light outlet.
Optionally, a first reflection plate and a second reflection plate are arranged on the fixed frame;
the first reflector has the first arched diffuse reflection surface facing the first light source;
the second reflector has the second arched diffuse reflection surface, and the second arched diffuse reflection surface faces the second light source.
Optionally, the first light source outgoing light is reflected by the first arched diffuse reflection surface and the second light source outgoing light is reflected by the second arched diffuse reflection surface and then intersects with the set area.
Optionally, a photographing gap for a camera to photograph for detecting a product is provided between the first reflection plate and the second reflection plate.
Optionally, the fixed frame is a rectangular frame and includes a first heat dissipation plate and a second heat dissipation plate that are disposed opposite to each other, the first reflection plate is mounted on the first heat dissipation plate, and the second reflection plate is mounted on the second heat dissipation plate.
Optionally, the fixed frame further includes a first end plate and a second end plate, two ends of the first end plate are respectively connected with the first heat dissipation plate and the second heat dissipation plate, and two ends of the second end plate are respectively connected with the first heat dissipation plate and the second heat dissipation plate to form the rectangular frame.
Optionally, a first mounting portion is further disposed at an end of the first heat dissipation plate, the end being away from the first reflection plate, the first mounting portion extending toward the first heat dissipation plate, a first circuit board is mounted on the first mounting portion, and the first light source is mounted on the first circuit board;
the second heating panel is kept away from the first end of second reflecting plate still is provided with the second installation department, the second installation department to the second heating panel extends, just install the second circuit board on the second installation department, the second light source install in on the second circuit board.
Optionally, a first light barrier is further mounted on the first mounting portion, and the first circuit board is mounted on the first light barrier;
a second light baffle plate is arranged on the second installation part, and the second circuit board is arranged on the second light baffle plate;
the distance between the first light barrier and the second light barrier forms the width of the light outlet.
Optionally, a plurality of cooling fins are disposed on each of the first cooling plate and the second cooling plate.
Optionally, the first and second arcuate diffuse reflective surfaces are elliptical surfaces, and the first and second arcuate diffuse reflective surfaces are symmetrically arranged.
A product defect detecting apparatus comprising a light source apparatus as claimed in any one of the above.
Compared with the prior art, the utility model discloses following beneficial effect has:
in this embodiment, the light reflected by the first arched diffuse reflection surface and the second arched diffuse reflection surface can be converged to the light outlet, which is equivalent to converging the light emitted by the first light source and the second light source, so that the illumination of the product at the light outlet can be improved, the detection camera can conveniently take a picture for detection, and the detection speed of the product to be detected can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose.
Fig. 1 is a schematic structural diagram of a light source device according to an embodiment of the present invention;
fig. 2 is an exploded schematic view of a light source device according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a path of light emitted from the light source device according to an embodiment of the present invention.
Illustration of the drawings: 1. a fixed frame; 101. shooting gaps; 11. a first heat dissipation plate; 111. a first mounting portion; 12. a second heat dissipation plate; 121. a second mounting portion; 13. a first end plate; 14. a second end plate; 21. a first reflection plate; 22. a second reflection plate; 201. a first arcuate diffuse reflective surface; 202. a second arcuate diffuse reflective surface; 31. a first light source; 32. a second light source; 41. a first circuit board; 42. a second circuit board; 51. a first light barrier; 52. a second light-blocking plate; 100. and a light outlet.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. It should be 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 solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Example one
The embodiment of the utility model provides a light source device can effectively assemble the light that first arch diffuse reflection face 201 and second arch diffuse reflection face 202 reflect to for waiting to detect the product and bring bigger illuminance, can effectively conveniently promote and wait to detect the detection precision and the detection speed of detecting the product.
Referring to fig. 1 to 3, the light source device includes a fixed frame 1, a first arched diffuse reflection surface 201 and a second arched diffuse reflection surface 202 are disposed on the fixed frame 1, a first light source 31 is disposed on one side of the bottom of the first arched diffuse reflection surface 201, a second light source 32 is disposed on one side of the bottom of the second arched diffuse reflection surface, and a light outlet 100 is disposed between the first light source 31 and the second light source 32;
the emergent light of the first light source 31 enters the first arched diffuse reflection surface 201, and is reflected by the first arched diffuse reflection surface 201 to be emitted from the light outlet 100;
the light emitted from the second light source 32 enters the second arched diffuse reflection surface 202, and is reflected by the second arched diffuse reflection surface 202 to exit from the light exit 100.
Specifically, the light rays reflected by the first arched diffuse reflection surface 201 and the second arched diffuse reflection surface 202 are emitted from the light outlet 100 and irradiate on the surface of the product to be detected, so that the detection camera can conveniently perform photographing detection on the product to be detected. The light outlet 100 can collect the light reflected by the first arched diffuse reflection surface 201 and the second arched diffuse reflection surface 202, so that the illumination of the product to be detected can be effectively improved. The flaws on the surface of the product to be detected can be displayed more easily under the light with higher illumination, so that the detection precision of the product to be detected can be improved.
In addition, it should be noted that the first arched diffuse reflection surface 201 and the second arched diffuse reflection surface 202 are provided, so that light rays are obliquely irradiated on the surface of the workpiece from two directions, and the granular sensation of the surface of the product can be well eliminated. Particularly, the light source device in this embodiment can provide sufficient and uniform illumination for the cylindrical surface and the arc surface, so that the detection accuracy of the camera is higher, and the detection speed is faster.
Wherein, the fixed frame 1 is provided with a first reflecting plate 21 and a second reflecting plate 22; and the first and second reflection plates 21 and 22 are arranged side by side.
The first reflector 21 has a first arched diffuse reflection surface 201, and the first arched diffuse reflection surface 201 faces the first light source 31;
the second reflector 22 has a second arcuate diffusive reflective surface 202, and the second arcuate diffusive reflective surface 202 faces the second light source 32.
Specifically, as shown in fig. 3, the first arched diffuse reflection surface 201 is a bottom side surface of the first reflection plate 21, and the first light source 31 is located at a bottom side of the first reflection plate 21; similarly, the second arched diffuse reflection surface 202 is a bottom side surface of the second reflection plate 22, and the second light source 32 is located at a bottom side of the second reflection plate 22. It should be further noted that the first arched diffuse reflection surface 201 and the second arched diffuse reflection surface 202 are both arc surfaces with gradually changing radians, so as to improve the effect of converging light.
Optionally, the first light source 31 is reflected by the first arched diffusive reflective surface 201 and the second light source 32 is reflected by the second arched diffusive reflective surface 202 to intersect at the predetermined area.
Specifically, since the first arched diffuse reflection surface 201 and the second arched diffuse reflection surface 202 are both arc surfaces with gradually changing radians, light rays reflected by the first arched diffuse reflection surface 201 and the second arched diffuse reflection surface 202 are converged onto a set area. The product is generally placed on a set area and then the camera takes a picture for inspection. Preferably, the predetermined area is a rectangular area, i.e. the light outlet 100. The light reflected by the first arched diffuse reflection surface 201 and the second arched diffuse reflection surface 202 is irradiated to the surface of the product from the light outlet 100.
Optionally, a photographing gap 101 is provided between the first reflection plate 21 and the second reflection plate 22 for photographing by a camera to detect the product.
Specifically, the camera detects the product to be detected from above without hindering the movement of the product to be detected.
Alternatively, the fixing frame 1 is a rectangular frame including a first heat dissipation plate 11 and a second heat dissipation plate 12 which are oppositely disposed, the first reflection plate 21 is mounted on the first heat dissipation plate 11, and the second reflection plate 22 is mounted on the second heat dissipation plate 12.
Specifically, the first reflection plate 21 is mounted on the first heat dissipation plate 11, and the second reflection plate 22 is mounted on the second heat dissipation plate 12, which is beneficial to improving the heat dissipation effect and preventing overheating.
Optionally, the fixed frame 1 further includes a first end plate 13 and a second end plate 14, two ends of the first end plate 13 are respectively connected with the first heat dissipation plate 11 and the second heat dissipation plate 12, and two ends of the second end plate 14 are respectively connected with the first heat dissipation plate 11 and the second heat dissipation plate 12 to form a rectangular frame.
Specifically, the rectangular frame also has the function of blocking external stray light, so that excessive stray light is prevented from irradiating a product to be detected, and the influence of the stray light on the detection precision is reduced.
Optionally, a first mounting portion 111 is further disposed at an end of the first heat sink 11 away from the first reflector 21, the first mounting portion 111 extends toward the first heat sink 11, a first circuit board 41 is mounted on the first mounting portion 111, and the first light source 31 is mounted on the first circuit board 41;
a second mounting portion 121 is further disposed at an end of the second heat dissipation plate 12 away from the second reflection plate 22, the second mounting portion 121 extends toward the second heat dissipation plate 12, a second circuit board 42 is mounted on the second mounting portion 121, and the second light source 32 is mounted on the second circuit board 42.
In one embodiment, the first circuit board 41 is directly mounted on the first mounting portion 111, and heat generated by the first light source 31 can be quickly transferred to the first heat dissipation plate 11, which is beneficial to prevent the first light source 31 from overheating; the second circuit board 42 is mounted on the second mounting portion 121, and heat generated by the second light source 32 can be quickly transferred to the second heat dissipation plate 12, which is beneficial to preventing the second light source 32 from overheating. At this time, the first circuit board 41 is in direct contact with the first mounting portion 111, and the second circuit board 42 is in contact with the second mounting portion 121, so that heat on the first circuit board 41 can be directly transferred to the first mounting portion 111, and heat on the second circuit board 42 can be directly transferred to the second mounting portion 121, and the heat dissipation effect is better.
In another specific embodiment, the first mounting portion 111 is further mounted with a first light barrier 51, and the first circuit board 41 is mounted on the first light barrier 51;
the second mounting portion 121 is provided with a second light baffle plate 52, and the second circuit board 42 is mounted on the second light baffle plate 52;
the distance between the first light barrier 51 and the second light barrier 52 constitutes the width of the light exit opening 100.
Specifically, the size of the light exit 100 can be adjusted to match the detection of different-sized products by adjusting the widths of the first light-blocking plate 51 and the second light-blocking plate 52.
It should be noted that, at this time, the first light barrier 51 separates the first circuit board 41 from the first mounting portion 111, and the second light barrier 52 separates the second circuit board 42 from the second mounting portion 121, so that the first light barrier 51 and the second light barrier 52 are prone to block heat transfer; in this case, the first light barrier 51 and the second light barrier 52 may be made of high thermal conductivity materials to improve the heat dissipation effect.
Optionally, a plurality of heat dissipation fins are disposed on each of the first heat dissipation plate 11 and the second heat dissipation plate 12. Preferably, the first heat dissipation plate 11 is further provided with a first fan for blowing the heat dissipation fins on the first heat dissipation plate 11, and the second heat dissipation plate 12 is further provided with a second fan for blowing the heat dissipation fins on the second heat dissipation plate 12, so as to improve the cooling effect and avoid overheating of the first light source 31 and the second light source 32.
Optionally, the first and second arched diffuse reflection surfaces 201 and 32 are both elliptical surfaces, and the first and second arched diffuse reflection surfaces 201 and 202 are symmetrically disposed.
Specifically, the elliptical surface has a better light condensing effect, and can better condense incident light to the light outlet 100, thereby improving illumination intensity.
Example two
A product defect detecting apparatus includes the light source apparatus according to the first embodiment. In addition, the product defect detection device also comprises a detection camera, a data processing system and the like to detect the surface quality measurement of the product to be detected, and the detection speed and the detection precision of the product to be detected are favorably improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A light source device, comprising a fixed frame (1), wherein a first reflector (21) and a second reflector (22) are arranged on the fixed frame (1), the first reflector (21) has a first arched diffuse reflection surface (201), the second reflector (22) has a second arched diffuse reflection surface (202), a first light source (31) is arranged on one side of the bottom of the first arched diffuse reflection surface (201), a second light source (32) is arranged on one side of the bottom of the second arched diffuse reflection surface, and a light outlet (100) is arranged between the first light source (31) and the second light source (32);
emergent light rays of the first light source (31) are emitted into the first arched diffuse reflection surface (201) and are reflected by the first arched diffuse reflection surface (201) to be emitted from the light outlet (100);
the emergent light of the second light source (32) is emitted into the second arched diffuse reflection surface (202), and is reflected by the second arched diffuse reflection surface (202) to be emitted from the light outlet (100).
2. The light source device according to claim 1, wherein the first reflection plate (21) and the second reflection plate (22) are both fixedly connected to the fixing frame (1), and the first reflection plate (21) and the second reflection plate (22) are arranged side by side.
3. The light source device according to claim 1, wherein the light emitted from the first light source (31) reflected by the first arched diffusive reflective surface (201) and the light emitted from the second light source (32) reflected by the second arched diffusive reflective surface (202) intersect at a predetermined area.
4. The light source device according to claim 2, wherein the first reflector plate (21) and the second reflector plate (22) have a photographing gap (101) between them for photographing by a camera to detect the product.
5. The light source device according to claim 2, wherein the fixing frame (1) is a rectangular frame including a first heat dissipating plate (11) and a second heat dissipating plate (12) which are arranged oppositely, the first reflecting plate (21) is mounted on the first heat dissipating plate (11), and the second reflecting plate (22) is mounted on the second heat dissipating plate (12).
6. The light source device according to claim 5, wherein the fixed frame (1) further comprises a first end plate (13) and a second end plate (14), both ends of the first end plate (13) are respectively connected with the first heat dissipation plate (11) and the second heat dissipation plate (12), and both ends of the second end plate (14) are respectively connected with the first heat dissipation plate (11) and the second heat dissipation plate (12) to form the rectangular frame.
7. The light source device according to claim 5, wherein a first mounting portion (111) is further provided at an end of the first heat dissipation plate (11) away from the first reflection plate (21), and a second mounting portion (121) is further provided at an end of the second heat dissipation plate (12) away from the second reflection plate (22);
the first mounting part (111) extends towards the second mounting part (121), a first circuit board (41) is mounted on the first mounting part (111), and the first light source (31) is mounted on the first circuit board (41);
the second installation part (121) extends towards the first installation part (111), a second circuit board (42) is installed on the second installation part (121), and the second light source (32) is installed on the second circuit board (42).
8. The light source device according to claim 7, wherein a first light barrier (51) is further mounted on the first mounting portion (111), and the first wiring board (41) is mounted on the first light barrier (51);
a second light-blocking plate (52) is arranged on the second mounting part (121), and the second circuit board (42) is arranged on the second light-blocking plate (52);
the distance between the first light barrier (51) and the second light barrier (52) constitutes the width of the light exit (100).
9. The light source device according to claim 5, wherein the first arched diffusive reflective surface (201) and the second arched diffusive reflective surface (202) are both elliptical surfaces, and the first arched diffusive reflective surface (201) and the second arched diffusive reflective surface (202) are symmetrically arranged.
10. A product defect detecting apparatus comprising the light source apparatus according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221198561.3U CN217404120U (en) | 2022-05-18 | 2022-05-18 | Light source device and product defect detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221198561.3U CN217404120U (en) | 2022-05-18 | 2022-05-18 | Light source device and product defect detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217404120U true CN217404120U (en) | 2022-09-09 |
Family
ID=83144300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221198561.3U Active CN217404120U (en) | 2022-05-18 | 2022-05-18 | Light source device and product defect detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217404120U (en) |
-
2022
- 2022-05-18 CN CN202221198561.3U patent/CN217404120U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW200817722A (en) | Optical element, light concentrating assembly, illumination unit and assembly, system for optical inspection of an object, and method for producing an optical element | |
| KR102054576B1 (en) | Optical inspecting apparatus with an optical screening device | |
| CN217404120U (en) | Light source device and product defect detection device | |
| JP2001208702A (en) | Method and apparatus for inspecting defects | |
| JP2020182165A (en) | Image reading device | |
| CN111158221A (en) | LED light source exposure system and exposure machine | |
| EP0100610B1 (en) | Illumination system | |
| WO2016138766A1 (en) | Stage lamp convenient for heat dissipation | |
| WO2017018101A1 (en) | Light projecting device | |
| JP2000270160A (en) | Picture input device | |
| JPH10302587A (en) | Optical sensor | |
| KR20120071764A (en) | Auto focusing apparatus | |
| JP2844547B2 (en) | Coin image input device | |
| JP2012119420A (en) | Light irradiation device | |
| JPH10241425A (en) | Lighting system and image reading system using it | |
| CN108490744B (en) | UV-LED optical system and exposure machine | |
| TWM618275U (en) | Complex linear light system for automated optical inspection | |
| JP3066740B2 (en) | Imaging system | |
| JP2004048290A (en) | Lighting device and image sensor | |
| JP3378921B2 (en) | Print inspection sensor | |
| JP5437016B2 (en) | Lighting device for image processing | |
| EP0533080A2 (en) | Flash device for transferring a dye matrix | |
| JPH0540022A (en) | Optical lighting device for appearance inspection | |
| JPS5850350Y2 (en) | flash fixing device | |
| KR102610300B1 (en) | Defect detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |