CN211426253U - Three-channel line scanning imaging detection device on surface of touch module - Google Patents
Three-channel line scanning imaging detection device on surface of touch module Download PDFInfo
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- CN211426253U CN211426253U CN201922497544.4U CN201922497544U CN211426253U CN 211426253 U CN211426253 U CN 211426253U CN 201922497544 U CN201922497544 U CN 201922497544U CN 211426253 U CN211426253 U CN 211426253U
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Abstract
The application provides a three-channel line scanning imaging detection device for the surface of a touch module, which comprises a transportation device for transporting the touch module, a linear array camera arranged above the transportation device and used for shooting the touch module, and a flash light source component arranged above the transportation device and used for providing a light source for the linear array camera; when the touch module moved under the conveyer effect, the light pulse that the first stroboscopic light source of simultaneous system can cycle control, second stroboscopic light source, third stroboscopic light source in proper order was opened simultaneously, and linear array camera follows opening of stroboscopic light source and carries out synchronous collection, and three stroboscopic light source arranges with different angles for the touch module, so can realize only using a camera to accomplish the multi-angle formation of image to the touch module surface, and touch module surface tee bend line is swept and is imaged promptly. The imaging of different channels can highlight specific characteristics of the surface of the touch module, so that various defect types of the surface of the touch module can be effectively detected.
Description
Technical Field
The utility model relates to an image field is swept to the line, indicates especially that touch module surface tee bend line sweeps formation of image detection device.
Background
The online visual inspection of the surface of the touch module is a novel application, and quality risks caused by the surface defect problem of the touch module can be effectively reduced through the inspection. Common surface defects of touch modules include: foreign matter, scratches, deviation, penetration, etc. These defects are distributed somewhat in the visible region and somewhat at the edges; some defects can be shown only by specular reflection, and some defects can be shown only by diffuse reflection; therefore, it is difficult to cover the detection of multiple defect types within the effective cost range. The currently used technologies include a dual channel technology and a dual camera technology. Due to the fact that the types of the surface defects are more, the dual-channel technology and the dual-camera technology are difficult to meet detection of all the defects, the problems of false detection, missed detection and the like exist, and the detection cost is obviously increased due to the fact that the number of cameras is increased. Therefore, under the condition of comprehensively considering the detection cost and the defect detection capability, the invention provides a three-channel line scanning imaging detection technology on the surface of the touch module.
Disclosure of Invention
In order to solve the above problem, the utility model provides a touch module surface tee bend line sweeps formation of image detection device, three frequency flash of light source are arranged with different angles for the touch module, so can realize only using a camera to accomplish the multi-angle formation of image to touch module surface, and touch module surface tee bend line sweeps the formation of image promptly. The imaging of different channels can highlight specific characteristics of the surface of the touch module, so that various defect types of the surface of the touch module can be effectively detected.
In order to achieve the above object, the utility model adopts the following technical scheme: the three-channel line scanning imaging detection device for the surface of the touch module comprises a transportation device for transporting the touch module, a linear array camera arranged above the transportation device and used for shooting the touch module, and a flash light source component arranged above the transportation device and used for providing a light source for the linear array camera; the stroboscopic light source component comprises a first stroboscopic light source, a second stroboscopic light source and a third stroboscopic light source which are arranged from left to right and sequentially and circularly started, the linear array camera, the first stroboscopic light source, the second stroboscopic light source, the third stroboscopic light source and the touch module are all positioned on the same vertical plane, a connecting line between the linear array camera and the touch module forms a first connecting line, the first stroboscopic light source emits first incident light and projects the first incident light on the touch module, the first incident light and the first connecting line are mutually symmetrical about a normal line perpendicular to the touch module, the second stroboscopic light source emits second incident light and projects the second incident light on the touch module, and the third stroboscopic light source emits third incident light and projects the third incident light on the touch module; and a first included angle formed by the first incident ray and the second incident ray is equal to a second included angle formed by the second incident ray and the third incident ray.
Further, the distances from the first stroboscopic light source, the second stroboscopic light source and the third stroboscopic light source to the touch module are the same.
Furthermore, the included angle formed by the first connecting line and the normal of the touch module is 30-35 degrees.
Further, the value of the first included angle and the second included angle is 20-30 degrees.
Further, conveyer includes conveyor belt and carries the drive roller, and conveyor belt cup joints on carrying the drive roller, just it is rotatory to carry the drive roller to drive conveyor belt.
The beneficial effects of the utility model reside in that:
1. when the touch module moves under the action of the conveying device, the system can sequentially and circularly control the light pulse of the first stroboscopic light source, the second stroboscopic light source and the third stroboscopic light source to be started, the linear array camera synchronously collects images along with the starting of the stroboscopic light source, and the light pulse is started within a very short time, so that the touch module is quite static when the camera collects images, namely the motion of pulse light freezing is called. Meanwhile, the three stroboscopic light sources are arranged at different angles relative to the touch module, so that multi-angle imaging of the surface of the touch module can be completed by only using one camera, namely three-channel line scanning imaging of the surface of the touch module. The imaging of different channels can highlight specific characteristics of the surface of the touch module, so that various defect types of the surface of the touch module can be effectively detected.
2. Imaging detection device is swept to touch-control module surface tee bend line, has avoided using a plurality of cameras to go the formation of image, has reduced the use quantity of camera, has reduced the detection cost effectively, and economic nature is strong.
3. By using the line scanning imaging detection technology, the images of the detected object in continuous operation can be acquired in real time, and the detection with high speed, high precision and wide breadth is realized.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a schematic diagram of the operation of the intermediate frequency flash source assembly of the present invention.
The reference numbers illustrate: 1. a line camera; 21. a first stroboscopic light source; 211. a reflective lamp cover; 212. a light source lamp panel; 213. a reflective trough; 22. a second stroboscopic light source; 23. a third stroboscopic light source; 3. a transportation device; 31. a conveyor belt; 32. and (4) conveying the driving roller.
Detailed Description
Referring to fig. 1-3, the present invention relates to a three-channel line scanning imaging detection device for a surface of a touch module, which includes a transportation device 3 for transporting the touch module, a line camera 1 disposed above the transportation device 3 for shooting the touch module, and a strobe light source assembly disposed above the transportation device 3 for providing a light source for the line camera 1; the stroboscopic light source component comprises a first stroboscopic light source 21, a second stroboscopic light source 22 and a third stroboscopic light source 23 which are arranged from left to right and sequentially and circularly started, wherein the linear array camera 1, the first stroboscopic light source 21, the second stroboscopic light source 22 and the third stroboscopic light source 23 are all located on the same vertical plane, a connecting line between the linear array camera 1 and the touch module forms a first connecting line, the first stroboscopic light source 21 emits first incident light and projects the first incident light on the touch module, the first incident light and the first connecting line are mutually symmetrical about a normal perpendicular to the touch module, the second stroboscopic light source 22 emits second incident light and projects the second incident light on the touch module, and the third stroboscopic light source 23 emits third incident light and projects the third incident light on the touch module; and a first included angle formed by the first incident ray and the second incident ray is equal to a second included angle formed by the second incident ray and the third incident ray.
When the touch module moves under the action of the transportation device 3, the system can sequentially and circularly control the light pulses of the first stroboscopic light source 21, the second stroboscopic light source 22 and the third stroboscopic light source 23 to be started, and simultaneously the linear array camera 1 performs synchronous acquisition along with the starting of the stroboscopic light sources (namely, the linear array camera 1 performs synchronous acquisition when the first stroboscopic light source 21 is started, the linear array camera 1 performs synchronous acquisition again when the second stroboscopic light source 22 is started, and the linear array camera 1 performs synchronous acquisition again when the three stroboscopic light sources 23 are started). Meanwhile, the three stroboscopic light sources are arranged at different angles relative to the touch module, so that multi-angle imaging of the surface of the touch module can be completed by only using one camera, namely three-channel line scanning imaging of the surface of the touch module. The imaging of different channels can highlight specific characteristics of the surface of the touch module, so that various defect types of the surface of the touch module can be effectively detected. Imaging detection device is swept to touch-control module surface tee bend line, has avoided using a plurality of cameras to go the formation of image, has reduced the use quantity of camera, has reduced the detection cost effectively, and economic nature is strong. By using the line scanning imaging detection technology, the images of the detected object in continuous operation can be acquired in real time, and the detection of high speed, high precision and wide breadth is realized
Further, the distances from the first stroboscopic light source 21, the second stroboscopic light source 22, and the third stroboscopic light source 23 to the touch module are the same. In this embodiment, in order to ensure that the illumination brightness of the emergent light projected by each stroboscopic light source is strong and relatively uniform, the distances from the first stroboscopic light source 21, the second stroboscopic light source 22, and the third stroboscopic light source 23 to the touch module are designed to be the same, that is, the first stroboscopic light source 21, the second stroboscopic light source 22, and the third stroboscopic light source 23 are located on the same arc; the arc takes the intersection point of the first incident light, the second incident light and the third incident light at the touch module as the center of a circle and the distance from any stroboscopic light source to the touch module as the radius.
Furthermore, the included angle formed by the first connecting line and the normal of the touch module is 30-35 degrees.
Further, the value of the first included angle and the second included angle is 20-30 degrees.
Further, the conveyer 3 includes a conveying belt 31 and a conveying driving roller 32, the conveying belt 31 is sleeved on the conveying driving roller 32, and the conveying driving roller 32 drives the conveying belt 31 to rotate.
The first embodiment is as follows: the three-channel line scanning imaging detection device for the surface of the touch module comprises a transportation device 3 for transporting the touch module, a linear array camera 1 arranged above the transportation device 3 and used for shooting the touch module, and a flash light source component arranged above the transportation device 3 and used for providing a light source for the linear array camera 1; the stroboscopic light source component comprises a first stroboscopic light source 21, a second stroboscopic light source 22 and a third stroboscopic light source 23 which are arranged from left to right and are sequentially and circularly started, and the first stroboscopic light source 21, the second stroboscopic light source 22 and the third stroboscopic light source 23 are positioned on the same arc;
referring to fig. 2, the line camera 1, the first stroboscopic light source 21, the second stroboscopic light source 22, the third stroboscopic light source 23, and the touch module are all located on the same vertical plane, a connection line between the line camera 1 and the touch module forms a first connection line, the first stroboscopic light source 21 emits a first incident light and projects on the touch module, and the first incident light and the first connection line are mutually symmetric about a normal perpendicular to the touch module, wherein the second stroboscopic light source 22 emits a second incident light and projects on the touch module, and the third stroboscopic light source 23 emits a third incident light and projects on the touch module; a first included angle theta formed by the first incident light and the second incident light is equal to a second included angle formed by the second incident light and the third incident light, wherein the first included angle theta is equal to the second included angle and is equal to 25 degrees, and an included angle alpha formed by the first connecting line and a normal of the touch module and an included angle beta formed by the first incident light and the normal of the touch module are both 30 degrees;
in addition, in the present embodiment, the first stroboscopic light source 21, the second stroboscopic light source 22, and the third stroboscopic light source 23 have the same structure, and the structure of the first stroboscopic light source 21 is as follows:
the lamp comprises a reflecting lamp shade 211 and a light source lamp panel 212, wherein the reflecting lamp shade 211 is of a strip structure, a reflecting groove 213 extending along the length direction of the reflecting lamp shade is formed in the inner side surface of the reflecting lamp shade 211, a reflecting film is attached to the surface of the reflecting groove 213, and the light source lamp panel 212 is placed in the reflecting groove 213 and extends along the length direction of the reflecting groove 213; the longitudinal section of the reflective trough 213 is a quarter ellipse, and the light source lamp panel 212 is located at the focus of the ellipse.
Referring to fig. 3, in the present application, the reflective trough 213 is designed to have a quarter-elliptical longitudinal section, and the light source lamp panel 212 is designed to be located at the focus (F1 in fig. 3) of the ellipse of the reflective trough 213, and the product mainly uses the optical characteristics of the focus of the ellipse: light is emitted from one focus of the ellipse (F1 in FIG. 3), and after being reflected by the ellipse, the reflected light must pass through the other focus of the ellipse (F2 in FIG. 3), so that a layer of reflective film is attached to the surface of the reflective trough 213, and the light source lamp panels 212 are arranged in a row and are uniformly distributed on the focus of the ellipse (F1 in FIG. 3). When the light source lamp panel 212 works, under the action of the reflection film on the reflection groove 213, light rays are converged at another focus (F2 in fig. 3), so that the illumination brightness is enhanced, emergent light is relatively more uniform under the action of the reflection film, and the illumination effect of the light source is remarkably improved. In this embodiment, the other focus (F2 in fig. 3) is aligned with the touch module, so that the illumination effect of the light source is greatly improved; and the light energy utilization rate is improved, and more energy is saved.
The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.
Claims (5)
1. Imaging detection device is swept to touch-control module surface tee bend line, its characterized in that: the device comprises a transportation device for transporting the touch module, a linear array camera arranged above the transportation device and used for shooting the touch module, and a flash light source component arranged above the transportation device and used for providing a light source for the linear array camera; the stroboscopic light source component comprises a first stroboscopic light source, a second stroboscopic light source and a third stroboscopic light source which are arranged from left to right and sequentially and circularly started, the linear array camera, the first stroboscopic light source, the second stroboscopic light source, the third stroboscopic light source and the touch module are all positioned on the same vertical plane, a connecting line between the linear array camera and the touch module forms a first connecting line, the first stroboscopic light source emits first incident light and projects the first incident light on the touch module, the first incident light and the first connecting line are mutually symmetrical about a normal line perpendicular to the touch module, the second stroboscopic light source emits second incident light and projects the second incident light on the touch module, and the third stroboscopic light source emits third incident light and projects the third incident light on the touch module; and a first included angle formed by the first incident ray and the second incident ray is equal to a second included angle formed by the second incident ray and the third incident ray.
2. The device for detecting three-channel line scan imaging of a surface of a touch module according to claim 1, wherein: the distances from the first stroboscopic light source, the second stroboscopic light source and the third stroboscopic light source to the touch module are the same.
3. The device for detecting three-channel line scan imaging of a surface of a touch module according to claim 1, wherein: the included angle formed by the first connecting line and the normal of the touch module is 30-35 degrees.
4. The device for detecting three-channel line scan imaging of a surface of a touch module according to claim 1, wherein: the value of the first included angle and the second included angle is 20-30 degrees.
5. The device for detecting three-channel line scan imaging of a surface of a touch module according to claim 1, wherein: conveyer includes conveyor belt and carries the drive roller, and conveyor belt cup joints on carrying the drive roller, just it is rotatory to carry the drive roller to drive conveyor belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922497544.4U CN211426253U (en) | 2019-12-31 | 2019-12-31 | Three-channel line scanning imaging detection device on surface of touch module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922497544.4U CN211426253U (en) | 2019-12-31 | 2019-12-31 | Three-channel line scanning imaging detection device on surface of touch module |
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| CN211426253U true CN211426253U (en) | 2020-09-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324372A (en) * | 2021-12-21 | 2022-04-12 | 苏州凌云视界智能设备有限责任公司 | Appearance detection device for stainless steel coil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114324372A (en) * | 2021-12-21 | 2022-04-12 | 苏州凌云视界智能设备有限责任公司 | Appearance detection device for stainless steel coil |
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