CN216208680U - Imaging device and detection system based on photoluminescence - Google Patents
Imaging device and detection system based on photoluminescence Download PDFInfo
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- CN216208680U CN216208680U CN202122688308.8U CN202122688308U CN216208680U CN 216208680 U CN216208680 U CN 216208680U CN 202122688308 U CN202122688308 U CN 202122688308U CN 216208680 U CN216208680 U CN 216208680U
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Abstract
The application provides an imaging device and a detection system based on photoluminescence, wherein the detection system comprises a photoelectric sensor, an image processing device and an imaging device; the imaging device is electrically connected with the photoelectric sensor and the image processing device. The photoelectric sensor is arranged in a production line area where the conveyor belt below the imaging device is located. The imaging device is provided with a machine shell, a laser, a shaping optical cylinder, a linear array camera, a lens and a driving control board are arranged in the machine shell, a laser window and a camera imaging window are arranged on the side surface of the machine shell, wherein the connecting end of the lens is connected with the linear array camera, and the lens end corresponds to the camera imaging window; the shaping optical cylinder is connected with the laser, the laser outlet end corresponds to the laser window, and the side surface of the shaping optical cylinder is provided with a pitching fine adjustment mechanism and a rotating fine adjustment mechanism. The detection system of the embodiment of the application is based on photoluminescence, does not generate secondary defects when being in contact with the detected object, reduces the fragment rate, completes detection in the moving process of the detected object, and improves the detection efficiency of the system.
Description
Technical Field
The application relates to the technical field of detection, in particular to imaging equipment and a detection system based on photoluminescence.
Background
In the production process of the crystalline silicon solar cell, defects such as hidden cracks, surface pollution, poor electrodes, scratches, belt marks, dirt, broken grids, insufficient solder joints and the like can be generated, and the defects limit the photoelectric conversion efficiency and the service life of the crystalline silicon solar cell.
At present, defect detection of a crystalline silicon solar cell is mainly based on an electroluminescence detection system, as shown in fig. 1, the system includes a direct current power supply 101, a cell 102 to be detected, a camera 103, a control device 104 and an image processing device, when the control device 104 receives a contact signal between a metal probe of the direct current power supply 101 and the cell 102 to be detected, the metal probe firstly energizes the cell 102 to be detected, then the camera 103 obtains an electroluminescence image of the cell 102 to be detected, and the defect of the cell 102 to be detected is determined through processing of the electroluminescence image.
However, the defect of the crystalline silicon solar cell is detected in a contact manner, and the method is only suitable for a large number of cells with electrodes in a static state after silk-screen printing, so that the detection efficiency is low, and a new crack defect is introduced into the crystalline silicon solar cell.
SUMMERY OF THE UTILITY MODEL
The application provides an imaging device and detecting system based on photoluminescence to solve the contact detection and only be applicable to the piece battery piece that has the electrode under the static state after the silk screen printing, lead to the technical problem that detection efficiency is low.
In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions:
in a first aspect, an embodiment of the present application provides an imaging device based on photoluminescence, where the imaging device has a casing, a laser, a shaping optical tube, a line-scan camera, a lens, and a driving control board are disposed in the casing, and a laser window and a camera imaging window are disposed on a bottom surface of the casing.
The drive control board is electrically connected with the laser and the linear array camera; the lens end of the lens is connected with the linear array camera, and the connecting end corresponds to the camera imaging window; the shaping optical cylinder is connected with the laser, and a laser outlet end corresponds to the laser window sheet; the side of the shaping optical cylinder is provided with a pitching fine adjustment mechanism and a rotating fine adjustment mechanism, the adjusting surface of the pitching fine adjustment mechanism is perpendicular to the adjusting surface of the rotating fine adjustment mechanism, the pitching fine adjustment mechanism is provided with a first screw micrometer, and the rotating fine adjustment mechanism is provided with a second screw micrometer. In the embodiment, the laser, the shaping optical tube, the linear array camera, the lens and the driving control board are integrated in one machine shell, so that the laser, the shaping optical tube, the linear array camera, the lens and the driving control board are convenient to install and use.
In a possible implementation manner, a heat radiator is arranged outside the side surface of the shell; the laser is arranged inside the side face and corresponds to the radiator. The arrangement of the radiator ensures that the laser can work continuously for a long time.
In a possible implementation manner, a fine adjustment back plate is arranged on the back surface of the casing, the bottom of the casing is movably connected with the fine adjustment back plate, and the top of the casing is connected with the fine adjustment back plate in an angle-adjustable manner. The fine setting backplate has the bar hole, the bar hole is established the face of fine setting backplate, and with the junction of casing. The fine adjustment back plate ensures that the position between the whole imaging equipment and the battery piece is proper through fine adjustment of the height and the angle.
In one possible implementation, the laser pane and the camera imaging pane are both infrared optical glass. The lens end of the lens is provided with an infrared filter. The laser utilization rate is improved, and the imaging effect is ensured.
In one possible implementation mode, the shaping optical cylinder is internally provided with a lens, and the laser outlet end of the shaping optical cylinder is provided with a cylindrical lens sheet; the uniformity of the linear laser light path is improved.
In one possible implementation, the driving control board has a communication interface and a power supply interface, and the communication interface and the power supply interface are arranged on the side surface or the top surface of the casing.
The application provides an imaging device based on photoluminescence is equipped with laser instrument, plastic optical cylinder, linear array camera, camera lens and drive control panel in the casing, laser window and camera formation of image window have on the bottom surface of casing. The drive control board is electrically connected with the laser and the linear array camera; the connecting end of the lens is connected with the linear array camera, and the lens end corresponds to the camera imaging window; the shaping optical cylinder is connected with the laser, and a laser outlet end corresponds to the laser window sheet; the side of the shaping optical cylinder is provided with a pitching fine adjustment mechanism and a rotating fine adjustment mechanism, the adjusting surface of the pitching fine adjustment mechanism is perpendicular to the adjusting surface of the rotating fine adjustment mechanism, the pitching fine adjustment mechanism is provided with a first screw micrometer, and the rotating fine adjustment mechanism is provided with a second screw micrometer. The imaging device can realize the completion of the detected object under the moving state, improves the imaging efficiency, does not need to detect the flaky battery piece with the electrode only after silk-screen printing, and can be applied to a plurality of processes of a battery piece production line. The imaging device integrates the laser, the shaping optical cylinder, the linear array camera, the lens and the driving control panel into one machine shell, so that the imaging device is convenient to install and use, and the accuracy of the imaging device is improved by the arrangement of the pitching fine adjustment mechanism and the rotating fine adjustment mechanism.
In a second aspect, an embodiment of the present application provides a photoluminescence-based detection system, which is disposed on a production line including a conveyor belt, and includes a photosensor, an image processing device, and the imaging device set forth in the first aspect; the imaging device is electrically connected with the photoelectric sensor and the image processing device.
The photoelectric sensor is arranged in a production line area where a conveyor belt below the imaging device is located.
The imaging device is provided with a machine shell, a laser, a shaping optical cylinder, a linear array camera, a lens and a driving control board are arranged in the machine shell, a laser window and a camera imaging window are arranged on the side face of the machine shell, wherein the connecting end of the lens is connected with the linear array camera, and the lens end corresponds to the camera imaging window; the shaping optical cylinder is connected with the laser, the laser outlet end corresponds to the laser window, and the side surface of the shaping optical cylinder is provided with a pitching fine adjustment mechanism and a rotating fine adjustment mechanism.
The application provides a photoluminescence-based detection system, which comprises a photoelectric sensor, an image processing device and an imaging device; the imaging device is electrically connected with the photoelectric sensor and the image processing device. The photoelectric sensor is arranged in a production line area where a conveyor belt below the imaging device is located. The imaging device is provided with a machine shell, a laser, a shaping optical cylinder, a linear array camera, a lens and a driving control board are arranged in the machine shell, a laser window and a camera imaging window are arranged on the side face of the machine shell, wherein the connecting end of the lens is connected with the linear array camera, and the lens end corresponds to the camera imaging window; the shaping optical cylinder is connected with the laser, the laser outlet end corresponds to the laser window, and the side surface of the shaping optical cylinder is provided with a pitching fine adjustment mechanism and a rotating fine adjustment mechanism. The detection system of the embodiment of the application is based on photoluminescence, does not generate secondary defects when being in contact with the detected object, reduces the fragment rate, completes detection in the moving process of the detected object, and improves the detection efficiency of the system.
Drawings
In order to more clearly illustrate the embodiments of the present application 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 following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of an electroluminescence-based detection system according to the related art;
FIG. 2 is a schematic structural diagram of a photoluminescence-based imaging device in an embodiment of the application;
FIG. 3 is a schematic diagram of a photoluminescence-based imaging device from another perspective in an embodiment of the application;
FIG. 4 is an enlarged view taken at A of FIG. 3 of the present application;
FIG. 5 is a longitudinal cross-sectional view of a photoluminescence-based imaging device in an embodiment of the application;
FIG. 6 is a rear view of a photoluminescence-based imaging device in an embodiment of the application;
FIG. 7 is a schematic structural diagram of a photoluminescence-based detection system in an embodiment of the present application;
wherein: 1-a machine shell; 2-linear array camera; 3-a lens; 4-a laser; 5-shaping the light cylinder; 51-a lens; 52-lenticular lens sheet; 6-pitching fine adjustment mechanism; 61-a first micrometer screw; 7-rotating fine adjustment mechanism; 71-a second micrometer screw; 8-driving the control panel; 9-trimming the back plate; 91-strip shaped holes; 10-a heat sink; 11-a power supply interface; 12-a communication interface; 13-laser window; 14-camera imaging window; 101-a direct current power supply; 102-a battery piece to be tested; 103-a camera; 104-a control device; 201-an imaging device; 202-an image processing device; 203-a photosensor; 204-a conveyor belt; 205-the object under test; 206-imaging optical path; 207-laser path.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Due to the defects of the crystalline silicon solar cell, the grade of the crystalline silicon solar cell is reduced or the crystalline silicon solar cell is scrapped, and a warp-written probe of a power supply needs to touch the cell to be detected through an Electroluminescence (EL) detection system, so that the crystalline silicon solar cell may have broken chips or hidden crack defects in the contact process; the detection system based on electroluminescence is only suitable for the cell to be detected after silk-screen printing, and no electrode is arranged on the cell to be detected before silk-screen printing; therefore, the system is only suitable for final detection of the cell, is not suitable for detection in the process, and the detection efficiency is low because the detected cell in a static state needs to be shot by the detection system based on electroluminescence.
In order to solve the above problems, the present application will be described in further detail with reference to the accompanying drawings. Photoluminescence (PL) is a process in which a substance absorbs photons (or electromagnetic waves) and then re-radiates the photons (or electromagnetic waves). Some embodiments of the present application provide an imaging device based on photoluminescence, as shown in fig. 2 and 3, the imaging device has a housing 1, a laser 4, a shaping optical cylinder 5, a line camera 2, a lens 3, and a driving control board 8 are disposed in the housing 1, and a laser window 13 and a camera imaging window 14 are disposed on a bottom surface of the housing 1. In the embodiment, the laser 4, the shaping optical cylinder 5, the line camera 2, the lens 3 and the driving control board 8 are integrated in one machine case 1, so that the installation and the use are convenient. The driving control board 8 is electrically connected with the laser 4 and the line camera 2 and is used for responding to the received trigger signal to control the on and off of the laser 4 and setting the functions of brightness, on time, departure delay and the like; and the received external row and frame signals can be responded, are subjected to optical coupling isolation processing and then are sent to the linear array camera 2 to trigger image acquisition, so that the anti-interference performance of the signals of the imaging equipment is ensured.
The connecting end of the lens 3 is connected with the linear array camera 2, and the end of the lens 3 is provided with an infrared filter and corresponds to the camera imaging window 14; the camera imaging window 14 is made of infrared optical glass and an infrared filter, so that the laser utilization rate is improved, and the imaging effect is ensured.
In some embodiments, the line camera 2 may be a near-infrared line camera, a CCD line camera, or a CMOS line camera. The lens 3 may be a line-scan lens, and the lens 3 corresponding to the requirement is selected according to different resolutions of the line-scan camera 2 and a number of models of the lens 3. The interfaces of the connecting ends of the lens 3 can be C, M42x1, F, T2, Leica, M72x0.75 and the like.
One end of the shaping optical cylinder 5 is connected with the laser 4, and the other end of the shaping optical cylinder corresponds to the laser window piece 13; the laser window piece 13 is infrared optical glass, the laser window piece 13 is obliquely arranged and has a certain angle with the camera imaging window piece 14, the laser utilization rate is improved, and the imaging effect is guaranteed.
In some embodiments, the laser 4 may be replaceable according to imaging requirements, and its spectral range may be within 915nm, depending on the power and spectral range of the laser 4.
As shown in fig. 4, the side surface of the shaping optical cylinder 5 is provided with a pitching fine adjustment mechanism 6 and a rotating fine adjustment mechanism 7, the adjusting surface of the pitching fine adjustment mechanism 6 is perpendicular to the adjusting surface of the rotating fine adjustment mechanism 7, the pitching fine adjustment mechanism 6 and the rotating fine adjustment mechanism 7 do not affect each other, and the depth of field of the camera and the laser imaging is ensured.
The pitching fine adjustment mechanism 6 is provided with a first micrometer screw 61 for adjusting the pitching angle of the shaping optical cylinder 5, the rotating fine adjustment mechanism 7 is provided with a second micrometer screw 71 for adjusting the rotating angle of the shaping optical cylinder 5, and the high adjusting precision is ensured by the first micrometer screw 61 and the second micrometer screw 71.
As shown in fig. 5, the shaping optical cylinder 5 has a lens 51 inside, and the laser exit end of the shaping optical cylinder 5 has a lenticular lens sheet 52; the lenticular lens sheet 52 is formed by arranging a plurality of lenticular lenses 51 in parallel, and the uniformity of the optical path of the linear laser beam is improved by the lenses 51 and the lenticular lens sheet 52.
A radiator 10 is arranged outside the side surface of the machine shell 1; the laser 4 is disposed in the casing 1 at a position corresponding to the heat sink 10, and the heat sink 10 may have heat dissipation fins, a heat dissipation fan, or both the heat dissipation fan and the heat dissipation fins. The provision of the heat sink 10 ensures that the laser 4 continues to operate for a long period of time at a temperature threshold for normal operation, which may be below 60 deg..
As shown in fig. 3 and 6, a fine adjustment back plate 9 is disposed on the back surface of the housing 1, the fine adjustment back plate 9 has a strip-shaped hole 91, and the strip-shaped hole 91 is disposed on the surface of the fine adjustment back plate 9 and at the connection position with the housing 1. The installation height of the imaging equipment can be finely adjusted through the strip-shaped hole 91 arranged on the surface of the fine adjustment back plate 9; the bottom of the machine shell 1 is movably connected with the fine adjustment back plate 9, and the top of the machine shell 1 is connected with the fine adjustment back plate 9 through the strip-shaped hole 91 at the joint of the machine shell 1 and the angle adjustable connection. . The fine adjustment back plate 9 ensures that the position between the whole imaging equipment and the battery piece is proper through fine adjustment of the height and the angle.
The driving control board 8 has a communication interface 12 and a power supply interface 11, and the communication interface 12 and the power supply interface 11 are disposed on the side surface or the top surface of the casing 1. The communication interface 12 and the power supply interface 11 may also be disposed on the bottom surface of the housing 1 without affecting the laser light path and the imaging light path. The communication interface 12 in the imaging device is used to receive external trigger signals, external line and frame signals, and output the acquired image data to the image processing device.
The application provides an imaging device based on photoluminescence is equipped with laser instrument, plastic optical cylinder, linear array camera, camera lens and drive control panel in the casing, laser window and camera formation of image window have on the bottom surface of casing. The drive control board is electrically connected with the laser and the linear array camera; the connecting end of the lens is connected with the linear array camera, and the lens end corresponds to the camera imaging window; the shaping optical cylinder is connected with the laser, and a laser outlet end corresponds to the laser window sheet; the side of the shaping optical cylinder is provided with a pitching fine adjustment mechanism and a rotating fine adjustment mechanism, the adjusting surface of the pitching fine adjustment mechanism is perpendicular to the adjusting surface of the rotating fine adjustment mechanism, the pitching fine adjustment mechanism is provided with a first screw micrometer, and the rotating fine adjustment mechanism is provided with a second screw micrometer. The imaging device can realize the completion of the detected object under the moving state, improves the imaging efficiency, does not need to detect the flaky battery piece with the electrode only after silk-screen printing, and can be applied to a plurality of processes of a battery piece production line. The imaging device integrates the laser, the shaping optical cylinder, the linear array camera, the lens and the driving control panel into one machine shell, so that the imaging device is convenient to install and use, and the accuracy of the imaging device is improved by the arrangement of the pitching fine adjustment mechanism and the rotating fine adjustment mechanism.
By applying the imaging device, some embodiments of the present application provide a detection system based on photoluminescence, the detection system is arranged on a production line containing a conveyor belt, and the object to be detected passes through an imaging area of the imaging device 201 in sequence through the conveyor belt, as shown in fig. 7, and the detection system comprises a photoelectric sensor 203, an image processing device 202 and the imaging device 201; the imaging device 201 is electrically connected with the photoelectric sensor 203 and the image processing device 202. A laser light path 207 generated by the laser irradiates on the measured object 205 through a shaping light cylinder and a laser window sheet; the imaging light path 206 acquired by the line camera and the laser light path 207 intersect on the object to be measured 205, and the imaging light path 206 and the laser light path 207 can be imaged in parallel.
The photoelectric sensor 203 is arranged in a production line area where the conveyor belt 204 under the imaging device 201 is located, and is used for sensing whether the object to be measured 205 reaches the imaging area of the imaging device 201, and transmitting a single-end trigger signal to a drive control board of the imaging device 201 for processing through a communication interface of the imaging device 201.
The imaging device 201 is provided with a machine shell, a laser, a shaping optical cylinder, a linear array camera, a lens and a driving control board are arranged in the machine shell, a laser window and a camera imaging window are arranged on the side surface of the machine shell, wherein the connecting end of the lens is connected with the linear array camera, and the lens end corresponds to the camera imaging window; the shaping optical cylinder is connected with the laser, the laser outlet end corresponds to the laser window, and the side surface of the shaping optical cylinder is provided with a pitching fine adjustment mechanism and a rotating fine adjustment mechanism.
The imaging acquisition workflow of the photoluminescence-based detection system is as follows: when an object to be detected passes through the production line conveyor belt 204, the photoelectric sensor 203 on the production line senses and outputs a single-ended trigger signal, the single-ended trigger signal is transmitted into the imaging device 201 through a communication interface of the imaging device 201, the external trigger signal is transmitted to the camera and the laser after being processed by the driving control panel, the laser is lightened, the camera starts to acquire images, photoluminescence images of the object to be detected are output to the image processing device 202, the photoluminescence images are matched with a related software system to detect and identify defects, and then related detection results are fed back to a related execution mechanism to be processed, so that the defect-free piece is ensured to flow out of a detection station.
Wherein, for better assurance laser instrument lights and camera picture acquisition synchronization, drive control panel can realize laser instrument trigger signal delay through outside presetting to imaging device 201 after receiving trigger signal, guarantees that every determinand can all be gathered the picture completely at the in-process that the laser instrument lights, guarantees the normal continuous operation of production line.
In some embodiments, the image processing device 202 may be a PC, an industrial personal computer, or other intelligent devices with a processor.
The measured object of the detection system based on photoluminescence can be a finished battery piece, and can also be a battery piece after primary silicon wafer, texturing, diffusion, laser SE, front film, back film, electric injection and silk screen printing, and the product at different stages of battery piece production can be subjected to image acquisition through imaging equipment.
The application provides a photoluminescence-based detection system, which comprises a photoelectric sensor, an image processing device and an imaging device; the imaging device is electrically connected with the photoelectric sensor and the image processing device. The photoelectric sensor is arranged in a production line area where a conveyor belt below the imaging device is located. The imaging device is provided with a machine shell, a laser, a shaping optical cylinder, a linear array camera, a lens and a driving control board are arranged in the machine shell, a laser window and a camera imaging window are arranged on the side face of the machine shell, wherein the connecting end of the lens is connected with the linear array camera, and the lens end corresponds to the camera imaging window; the shaping optical cylinder is connected with the laser, the laser outlet end corresponds to the laser window, and the side surface of the shaping optical cylinder is provided with a pitching fine adjustment mechanism and a rotating fine adjustment mechanism. The detection system of the embodiment of the application is based on photoluminescence, does not generate secondary defects when being in contact with the detected object, reduces the fragment rate, completes detection in the moving process of the detected object, and improves the detection efficiency of the system.
The above-mentioned contents are only for explaining the technical idea of the present application, and the protection scope of the present application is not limited thereby, and any modification made on the basis of the technical idea presented in the present application falls within the protection scope of the claims of the present application.
Additionally, the order in which elements and sequences of the processes described herein are processed, the use of alphanumeric characters, or the use of other designations, is not intended to limit the order of the processes and methods described herein, unless explicitly claimed. While various presently contemplated embodiments have been discussed in the foregoing disclosure by way of example, it should be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements that are within the spirit and scope of the embodiments herein. For example, although the system components described above may be implemented by hardware devices, they may also be implemented by software-only solutions, such as installing the described system on an existing server or mobile device.
Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to require more features than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.
The entire contents of each patent, patent application publication, and other material cited in this application, such as articles, books, specifications, publications, documents, and the like, are hereby incorporated by reference into this application. Except where the application is filed in a manner inconsistent or contrary to the present disclosure, and except where the claim is filed in its broadest scope (whether present or later appended to the application) as well. It is noted that the descriptions, definitions and/or use of terms in this application shall control if they are inconsistent or contrary to the statements and/or uses of the present application in the material attached to this application.
Claims (10)
1. An imaging device based on photoluminescence is characterized in that the imaging device is provided with a machine shell, a laser, a shaping light cylinder, a linear array camera, a lens and a driving control board are arranged in the machine shell, and a laser window and a camera imaging window are arranged on the bottom surface of the machine shell;
the drive control board is electrically connected with the laser and the linear array camera;
the connecting end of the lens is connected with the linear array camera, and the lens end corresponds to the camera imaging window;
the shaping optical cylinder is connected with the laser, and a laser outlet end corresponds to the laser window sheet;
the side of the shaping optical cylinder is provided with a pitching fine adjustment mechanism and a rotating fine adjustment mechanism, the adjusting surface of the pitching fine adjustment mechanism is perpendicular to the adjusting surface of the rotating fine adjustment mechanism, the pitching fine adjustment mechanism is provided with a first screw micrometer, and the rotating fine adjustment mechanism is provided with a second screw micrometer.
2. The photoluminescence-based imaging device of claim 1, wherein a heat sink is provided outside a side of the housing;
the laser is arranged inside the side face and corresponds to the radiator.
3. The photoluminescence-based imaging device as recited in claim 1, wherein a fine adjustment back plate is disposed on a back surface of the housing, a bottom of the housing is movably connected to the fine adjustment back plate, and an angle-adjustable connection is formed between a top of the housing and the fine adjustment back plate.
4. The photoluminescence-based imaging device as recited in claim 3, wherein the fine tuning back plate is provided with a strip-shaped hole, and the strip-shaped hole is formed in a plate surface of the fine tuning back plate and a connection part with the housing.
5. The photoluminescence-based imaging device of claim 1, wherein the laser pane and the camera imaging pane are both infrared optical glass.
6. The photoluminescence-based imaging device of claim 1, wherein the lens end of the lens has an infrared filter.
7. The photoluminescence-based imaging device of claim 1, wherein the shaping light cylinder is internally provided with a lens, and a laser outlet end of the shaping light cylinder is provided with a lenticular lens sheet.
8. The photoluminescence-based imaging device of claim 1, wherein the drive control board has a communication interface and a power supply interface, and the communication interface and the power supply interface are disposed on a side surface or a top surface of the housing.
9. A photoluminescence-based detection system, the detection system being arranged on a production line comprising a conveyor belt, comprising a photosensor, image processing means, and an imaging device according to any one of claims 1-8;
the imaging device is electrically connected with the photoelectric sensor and the image processing device;
the photoelectric sensor is arranged in a production line area where a conveyor belt below the imaging equipment is located;
the imaging device is provided with a machine shell, a laser, a shaping optical cylinder, a linear array camera, a lens and a driving control board are arranged in the machine shell, a laser window and a camera imaging window are arranged on the side face of the machine shell, wherein the connecting end of the lens is connected with the linear array camera, and the lens end corresponds to the camera imaging window; the shaping optical cylinder is connected with the laser, the laser outlet end corresponds to the laser window, and the side surface of the shaping optical cylinder is provided with a pitching fine adjustment mechanism and a rotating fine adjustment mechanism.
10. The photoluminescence-based detection system as recited in claim 9, wherein the laser light path generated by the laser is irradiated on the object to be detected through the shaping optical cylinder and the laser window;
and the imaging light path acquired by the linear array camera is intersected with the laser light path on the measured object.
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| GR01 | Patent grant |