CN216051408U - Sample detection device - Google Patents
Sample detection device Download PDFInfo
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- CN216051408U CN216051408U CN202121150851.6U CN202121150851U CN216051408U CN 216051408 U CN216051408 U CN 216051408U CN 202121150851 U CN202121150851 U CN 202121150851U CN 216051408 U CN216051408 U CN 216051408U
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Abstract
The embodiment of the utility model discloses a sample detection device, which comprises: an excitation light source for emitting first excitation light to a sample surface; a three-color light source for emitting a first three-color light to a surface of the sample; the signal acquisition device is used for acquiring second excitation light returning after the first excitation light is emitted to the sample and second three-color light returning after the first three-color light is emitted to the sample, and sending the second excitation light and the second three-color light to the signal processing device; and the signal processing device is connected with the signal acquisition device and used for receiving the second excitation light and the second three-color light and outputting the internal state and the surface state of the sample. The utility model simultaneously irradiates the sample by the excitation light source and the three-color light source, and synchronously analyzes the reflected excitation light and the three-color light to determine the internal defects and the surface defects of the sample, thereby solving the problem of high system cost, reducing the whole time of sample defect detection and improving the production efficiency.
Description
Technical Field
The utility model relates to the technical field of sample detection, in particular to a sample detection device.
Background
In the actual production process, the inventor finds the following problems: when electronic component produces, the quality direct influence electronic product's of printed circuit board (PCB board) quality, if the PCB board when appearing the defect, can lead to the circuit not to lead to the expert, make the unable normal work of other modules on the PCB board, to the internal defect of PCB board and surface defect detection time among the prior art system, generally detect the internal defect and the surface defect of product respectively through two sets of systems in proper order for system cost is with high costs, also increases holistic time that detects simultaneously.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide a sample detection device in order to solve the above problems.
A sample testing device comprising:
an excitation light source for emitting first excitation light to a sample surface;
a three-color light source for emitting a first three-color light to a surface of the sample;
the signal acquisition device is used for acquiring second excitation light returning after the first excitation light is emitted to the sample and second three-color light returning after the first three-color light is emitted to the sample, and sending the second excitation light and the second three-color light to the signal processing device;
and the signal processing device is connected with the signal acquisition device.
In one embodiment, the three-color light source is disposed at a side of the sample to irradiate the surface of the sample with three-color light.
In one embodiment, further comprising: a light filtering device, the light filtering device comprising; the first optical filter and the second optical filter are both positioned between the signal acquisition device and the sample;
the second exciting light returned by the sample is incident to the first optical filter, the first optical filter is used for filtering the second exciting light, and the filtered second exciting light is collected by the signal collection device;
and the second three-color light returned by the sample is incident to the second optical filter, the second optical filter is used for filtering the second three-color light, and the filtered second three-color light is collected by the signal collection device.
In one embodiment, a signal acquisition device comprises: a first CCD camera and a second CCD camera;
the first CCD camera receives the second exciting light incident to the first optical filter; the second CCD camera receives the second three-color light incident to the second optical filter.
In one embodiment, further comprising: a lens disposed between the filter device and the sample;
the second excitation light and the second three-color light converge to the lens, and the second excitation light and the second three-color light penetrating through the lens are collected by the signal collection device.
In one embodiment, the lens is a microlens array.
In one embodiment, further comprising: an optical amplifier located between the lens and the filtering means;
the second excitation light and the second three-color light which penetrate through the lens are distinguished through the optical amplifier, the optical amplifier enhances the energy of the second excitation light, and the second excitation light with the enhanced energy is collected by the signal collection device.
In one embodiment, further comprising: a baffle positioned between the lens and the filtering device.
In one embodiment, the baffle has a hemispherical shape, and the concave portion of the baffle is concave toward the second excitation light returning after the first excitation light is emitted to the sample and the second three-color light returning after the first three-color light is emitted to the sample.
In one embodiment, the inner wall of the baffle is coated with a barium sulfate BaSO4 coating.
The embodiment of the utility model has the following beneficial effects:
the utility model simultaneously irradiates the sample by the excitation light source and the three-color light source, and synchronously analyzes the reflected excitation light and the three-color light to determine the internal defects and the surface defects of the sample, thereby solving the problem of high system cost, reducing the whole time of sample defect detection and improving the production efficiency.
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 following description 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 creative efforts.
Wherein:
FIG. 1 is a schematic structural diagram of a sample detection device according to an embodiment.
In the figure, 10, excitation light sources; 20. a three-color light source; 30. a signal acquisition device; 301. a first CCD camera; 302. a second CCD camera; 40. a signal processing device; 50. a sample; 60. a light filtering means; 601. a first optical filter; 602. a second optical filter; 70. a lens; 80. an optical amplifier; 90. and a baffle plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
As shown in fig. 1, the overall structure of the sample detection device is schematically illustrated, and the sample detection device includes: an excitation light source 10 for emitting first excitation light to the surface of the sample 50; a three-color light source 20 for emitting a first three-color light toward the surface of the sample 50; the signal acquisition device 30 is used for acquiring second excitation light returning after the first excitation light is emitted to the sample 50 and second three-color light returning after the first three-color light is emitted to the sample 50, and sending the second excitation light and the second three-color light to the signal processing device; and a signal processing device 40 connected to the signal acquisition device 30, and configured to receive the second excitation light and the second three-color light, and output an internal state and a surface state of the sample 50.
The excitation light is used for exciting a substance to generate excitation spectrum, and has the characteristics of narrow spectral bandwidth, high spectral purity, good wavelength stability, high efficiency, long service life, good reliability, good light beam quality and the like; the three-color light is natural light; the defects of the sample are divided into internal defects and surface defects, the defects inside the sample are verified by irradiating the sample with exciting light, and the surface defects of the sample are verified by irradiating three-color light, so that a problem product can be timely and accurately searched.
In this embodiment, the first excitation light and the first three-color light are emitted to the sample, the second excitation light and the second three-color light returned from the sample are collected by the signal collection device, and then are sent to the signal processing device for signal processing, so as to determine the internal defect and the external defect of the sample, and realize the detection of the defective product, wherein the signal processing device is any software capable of processing signals at the PC end.
In one embodiment, the three-color light source is disposed at a side of the sample 50 to irradiate the surface of the sample 50 with three-color light.
In order to perform comprehensive defect detection on the surface of the sample, the surface of the sample needs to be completely covered by three-color light, and therefore, a plurality of three-color light sources are arranged on the side surface of the sample and around the whole periphery of the sample, so that the side surface and the upper surface of the sample are irradiated by the three-color light.
In one embodiment, further comprising: a filter device 60, said filter device 60 comprising; a first filter 601 and a second filter 602, said first filter 601 and said second filter 602 being located between said signal acquisition device and said sample 50;
the second excitation light returned by the sample is incident to the first optical filter 601, the first optical filter 601 is used for filtering the second excitation light, and the filtered second excitation light is collected by the signal collection device 30;
the second three-color light returned by the sample is incident to the second optical filter 602, the second optical filter 602 is configured to filter the second three-color light, and the filtered second three-color light is collected by the signal collection device.
Wherein, the optical filter is an optical device used for selecting a required radiation wave band; corresponding filtering processing is required to be carried out on the first excitation light and the second three-color light which are returned by emitting the first excitation light and the first three-color light to the sample, and the second excitation light returned by the sample is incident to the first optical filter 601 by arranging the first optical filter 601; and arranging a second optical filter 602, making the second three-color light returned by the sample incident to the second optical filter 602 to obtain a second excitation light and a second three-color light of a required radiation band, and collecting the filtered second excitation light and the second three-color light through the signal collection device 30.
In one embodiment, a signal acquisition device comprises: a first CCD camera 301 and a second CCD camera 302;
the first CCD camera 301 receives the second excitation light incident to the first filter 601; the second CCD camera 302 receives the second three-color light incident to the second filter 602.
The CCD is a short name of a Charge Coupled Device (CCD), and the CCD camera can convert an optical image into an electric signal; here, the first CCD camera 301 is provided to receive the second excitation light incident to the first filter 601; and a second CCD camera 302 to receive the second three color light incident to the second filter 602; the second excitation light and the second three-color light are respectively converted into electric signals, and the two electric signals are simultaneously sent to the signal processing device to be processed, so that the internal and surface defects of the sample can be simultaneously detected, and the sample detection efficiency is improved.
In one embodiment, further comprising: a lens 70, said lens 70 being disposed between said filter 60 and said sample 50, said lens being a microlens array; the second excitation light and the second three-color light converge to the lens 70, and the second excitation light and the second three-color light transmitted through the lens 70 are collected by the signal collection device 30.
The micro lens array is an array formed by lenses with micron-sized clear aperture and embossment depth, not only has basic functions of focusing, imaging and the like of the traditional lens, but also has the characteristics of small unit size and high integration level, so that the micro lens array can complete the functions which cannot be completed by the traditional optical element and can form a plurality of novel optical systems; the second excitation light and the second three-color light are converged through the micro-lens array, so that the second excitation light and the second three-color light can be better integrated together, the light energy is stronger, the phase information of the second excitation light and the second three-color light in the transmission process is reserved, the possibility of picture distortion is reduced, and the image is transmitted to the light filtering device for corresponding processing.
In one embodiment, further comprising: an optical amplifier 80, said optical amplifier 80 being located between said lens 70 and said filtering means 60;
the second excitation light and the second three-color light transmitted through the lens 70 are distinguished by the optical amplifier 80, the optical amplifier 80 boosts the energy of the second excitation light, and the second excitation light of the second three-color light and the boosted energy is collected by the signal collection device 30.
The optical amplifier 80 amplifies the optical signal, and in order to enable the signal acquisition device to better acquire the second excitation light and the second three-color light, the second excitation light and the second three-color light which penetrate through the lens 70 are subjected to signal amplification through the optical amplifier 80, and the energy of the second excitation light is enhanced to separate the second excitation light and the second three-color light by the copper wire, so that the internal defects of the sample can be clearly judged.
In one embodiment, further comprising: a baffle 90, said baffle 90 being located between said lens 70 and said filtering means 60. The baffle 90 has a hemispherical shape, and the concave portion thereof is directed toward the second excitation light returning after the first excitation light is emitted to the sample 50 and the second three-color light returning after the first three-color light is emitted to the sample 50.
Wherein, hemispherical baffle 90's depressed part orientation the second excitation light that returns after first excitation light launches sample 50 with the second trichromatic light that returns after first trichromatic light launches sample 50, when having avoided the loss of light, because the radian reason of the inside surface of baffle for second excitation light and second trichromatic light can be fine after meetting the baffle reflect again to lens 70 on, further avoid the light loss of second excitation light and second trichromatic light, provide the guarantee for the collection of signal acquisition device to second excitation light and second trichromatic light.
In one embodiment, the inner wall of the baffle 90 is coated with barium sulfate BaSO4, which can reduce the loss of optical information of the second excitation light and the second three-color light as much as possible.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the utility model is not limited by the scope of the appended claims.
Claims (10)
1. A sample testing device, comprising:
an excitation light source for emitting first excitation light to a sample surface;
a three-color light source for emitting a first three-color light to a surface of the sample;
the signal acquisition device is used for acquiring second excitation light returning after the first excitation light is emitted to the sample and second three-color light returning after the first three-color light is emitted to the sample, and sending the second excitation light and the second three-color light to the signal processing device;
and the signal processing device is connected with the signal acquisition device.
2. The sample detection device according to claim 1,
the three-color light source is arranged on the side surface of the sample so as to irradiate the surface of the sample with three-color light.
3. The sample detection device according to claim 1 or 2, further comprising: a light filtering device, the light filtering device comprising; the first optical filter and the second optical filter are both positioned between the signal acquisition device and the sample;
the second exciting light returned by the sample is incident to the first optical filter, the first optical filter is used for filtering the second exciting light, and the filtered second exciting light is collected by the signal collection device;
and the second three-color light returned by the sample is incident to the second optical filter, the second optical filter is used for filtering the second three-color light, and the filtered second three-color light is collected by the signal collection device.
4. The sample testing device of claim 3, wherein the signal acquisition device comprises: a first CCD camera and a second CCD camera;
the first CCD camera receives the second exciting light incident to the first optical filter; the second CCD camera receives the second three-color light incident to the second optical filter.
5. The sample testing device of claim 3, further comprising: a lens disposed between the filter device and the sample;
the second excitation light and the second three-color light converge to the lens, and the second excitation light and the second three-color light penetrating through the lens are collected by the signal collection device.
6. The sample detection device of claim 5, wherein the lens is a microlens array.
7. The sample testing device according to claim 5 or 6, further comprising: an optical amplifier located between the lens and the filtering means;
the second excitation light and the second three-color light which penetrate through the lens are distinguished through the optical amplifier, the optical amplifier enhances the energy of the second excitation light, and the second excitation light with the enhanced energy is collected by the signal collection device.
8. The sample detection device of claim 1, 2, 4, 5, or 6, further comprising: a baffle positioned between the lens and the filtering device.
9. The apparatus according to claim 8, wherein the baffle has a hemispherical shape, and a concave portion thereof faces the second excitation light returning after the first excitation light is emitted to the sample and the second three-color light returning after the first three-color light is emitted to the sample.
10. The sample detection device according to claim 1, 2, 4, 5, 6, or 9,
the inner wall of the baffle is coated with barium sulfate BaSO4 coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121150851.6U CN216051408U (en) | 2021-05-26 | 2021-05-26 | Sample detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121150851.6U CN216051408U (en) | 2021-05-26 | 2021-05-26 | Sample detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216051408U true CN216051408U (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121150851.6U Active CN216051408U (en) | 2021-05-26 | 2021-05-26 | Sample detection device |
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| Country | Link |
|---|---|
| CN (1) | CN216051408U (en) |
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2021
- 2021-05-26 CN CN202121150851.6U patent/CN216051408U/en active Active
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