CN207923719U - Raman spectrum detection device based on gradation of image identification - Google Patents
Raman spectrum detection device based on gradation of image identification Download PDFInfo
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Abstract
The utility model discloses a kind of Raman spectrum detection devices based on gradation of image identification, including：Laser is configured to object emission laser to be detected；Raman spectrometer is configured to receive the Raman light from the object；Imaging device is configured to obtain the image of the object；And controller, it is configured to the operation of detection device described in the gray-scale Control based on described image.
Description
Technical field
The utility model is related to a kind of detection devices, and a kind of particularly Raman light based on gradation of image identification
Compose detection device.
Background technology
Raman spectrum analysis technology is a kind of contactless spectral analysis technique based on Raman scattering effect, its energy
Qualitative and quantitative analysis is carried out to the ingredient of substance.Raman spectrum is a kind of molecular vibration spectrum, it can reflect the fingerprint of molecule
Feature can be used for the detection to substance.Raman spectrum detection is by detecting Raman scattering effect institute of the determinand for exciting light
The Raman spectrum of generation detects and identifies substance.
In recent years, Raman spectrum analysis technology is widely used in the fields such as dangerous material inspection and Object Classification.
In Object Classification field, due to the color of various substances, different, people are usually unable to judge accurately object qualitative attribution, and
Raman spectrum is determined by the molecular entergy level structure of checking matter, thus Raman spectrum can be used as " fingerprint " information of substance, is used for object
Matter identifies.Therefore Raman spectrum analysis technology is widely used in fields such as customs, public safety, food and medicine, environment.
Since Raman spectrum needs to use the laser of high power density as the 785nm laser of excitation light source, such as near-infrared
There is stronger fuel factor, in the case where the ingredient of examined object is unknown, detection rashly is likely to result in examined object
It is damaged by laser ablation, if examined object is inflammable and explosive chemicals, may result in the shapes such as generation burning, explosion
Condition causes the loss of personal property.
Utility model content
The purpose of the application is to solve or alleviate one or more technical problems in the prior art at least partly.
According to the one side of the application, it is proposed that a kind of Raman spectrum detection device based on gradation of image identification.
According to an exemplary embodiment, the detection device may include：Laser is configured to object to be detected
Body emits laser；Raman spectrometer is configured to receive the Raman light from the object；Imaging device is configured to obtain
The image of the object；And controller, it is configured to the operation of detection device described in the gray-scale Control based on described image.
According to another embodiment, the controller can be further configured to：It is determined in described image based on described image
Each pixel gray value；The gray value of each pixel is made comparisons with threshold gray value, to determine that gray value is less than threshold value
Percentage of the quantity of the pixel of gray value relative to total pixel number amount；And the percentage and threshold percentage are made into ratio
Compared with, and the detection device is controlled based on comparative result.
According to another embodiment, the controller can be further configured to：Described image is determined based on described image
The gray value of each pixel；Gray value based on each pixel calculates the average gray value of all pixels in described image；And it will
The average gray value is made comparisons with threshold value average gray value, and controls the detection device based on comparative result.
According to yet another embodiment, the detection device may also include：First spectroscope is arranged from the object to institute
It states in the Raman light light path of Raman spectrometer and is configured to laser aiming that the laser emits to the object and makes
It obtains the Raman light from the object and is transmitted to the Raman spectrometer across first spectroscope.Implemented according to further
Example, first spectroscope may include that long wave leads to dichroscope.
According to yet another embodiment, the detection device may also include：Second spectroscope is arranged from the object to institute
It states in the Raman light light path of Raman spectrometer and is configured to reflection visible light so that imaging device is to the image objects and permits
Perhaps the laser of the described laser transmitting and the Raman light from the object pass through second spectroscope.Implemented according to further
Example, second spectroscope may include that long wave leads to dichroscope.
According to yet another embodiment, the detection device may also include at least one of following optical component：First filtering
Piece, first spectroscope being arranged in the Raman light light path and second spectroscopical downstream and it is disposed for filtering
Except the Reyleith scanttering light in optical signal；Second filter plate is arranged between the laser and first spectroscope and is configured to
The laser is sent out laser-defined in desired wavelength period；With third filter plate, it is arranged in the imaging device
Between second spectroscope and it is disposed for filtering out the laser from object.
According to yet another embodiment, the detection device may also include at least one of following optical component：First assembles
Lens or lens group are arranged between the second spectroscope and the object；Second convergent lens or lens group, setting at
As between equipment and the second spectroscope；With third convergent lens or lens group, it is arranged in Raman spectrometer and the first spectroscope
Between.
It should be noted that each in previously described first to fourth convergent lens or lens group may include figure
Single convex lens shown in 1 can also include the lens group with light-focusing function being made of multiple lens.
According to yet another embodiment, the detection device may also include：Light source is configured to provide illumination to the object.
Description of the drawings
The preferred embodiment of the application will be described in conjunction with attached drawing by way of example now, wherein：
Fig. 1 is the schematical block diagram according to the detection device of one embodiment of the application；With
Fig. 2 is the schematical flow chart according to the detection method of another embodiment of the application.
Specific implementation mode
Describe the exemplary embodiment of the application in detail below in conjunction with attached drawing.Similar reference numeral in attached drawing refers to
For similar component or feature.The application can also other different forms realize that therefore embodiment set forth herein should not be by
It is construed to the limitation of the application.The purpose for providing these embodiments is that those skilled in the art is enable fully and completely to manage
Solve the design of the application.
A basic conception according to the present utility model, provides a kind of detection device, including：Laser is configured to
To object emission laser to be detected；Raman spectrometer is configured to receive the Raman light from the object；Imaging device,
It is configured to the image for obtaining the object；And controller, it is configured to detection described in the gray-scale Control based on described image and sets
Standby operation.
Fig. 1 shows the schematic diagram of the detection device of one embodiment according to the application.As shown in Figure 1, in the implementation
In example, detection device 100 includes：Laser 110 is configured to emit laser 111 to an object 120 to be detected；Raman light
Spectrometer 130 is configured to receive the Raman optical signal 112 from the object 120；Imaging device 140 is configured to obtain object
The image of body 120；With controller 150, it is configured to the operation of detection device 100 described in the gray-scale Control based on described image.
To excite the Raman scattering effect of examined object, the laser of usual laser transmitting to have higher power close
Degree, and the laser of high power density can generate stronger fuel factor, if the color of examined object it is relatively deep (for example, it is dark-grey,
Black etc.), then object can more absorb laser and rapidly be increased so as to cause its surface temperature, may result in object by office
Portion's ablation.If it is gunpowder, or even it will appear explosion.When testing staff trains not in place or carelessness, it is possible that on
Phenomenon is stated, or even Site Detection personnel can be injured.To avoid the occurrence of above-mentioned phenomenon, the technical solution of the application provides imaging dress
It sets to obtain the image of examined object, and determine whether examined object is dark or black etc. according to the image, and is based on
The shade of determining object determines subsequent detection operation.
CCD imaging devices, CMOS imager device or other imaging dresses as known in the art can be used in imaging device 140
It sets.The image of object can be the image of the object entirety obtained from a direction, can also be the detected part of object
Image, the relating to parameters such as size, the area of detection of detection device 100 of this and object 120 to be detected itself.For example, if
Object to be detected is small-sized jewel, then imaging device can get the general image of object one side, and if waited for
The size of the object of detection is larger, then imaging device can carry out local tomography to the position to be detected of object.Hereinafter, " object
The color of body " it is signified either the color of the detected face entirety of object, can also be the office of the detection site of object
Portion's color.
In embodiments herein, the depth of the color of object can be determined according to the gray scale of subject image.According to one
Exemplary embodiment, controller 150 are configured as：The image obtained based on imaging device 140 determines each picture in the image
The gray value of element；The gray value of each pixel is made comparisons with a preset threshold gray value, to determine that gray value is less than threshold value
Percentage of the quantity of the pixel of gray value relative to total pixel number amount；And by the percentage and a preset threshold value percentage
Than making comparisons, and the detection device 100 is controlled based on comparative result.
The subject image that imaging device obtains is carried out at gray processing for example, image processor (not shown) can be used
Reason, to obtain the gray value (value between 0 to 255) of each pixel in image.In one example, image processor can
It is integrated in imaging device 140 (that is, imaging device 140 includes image processor)；In another example, image processor also may be used
To be integrated in controller 150 (that is, controller 150 includes image processor)；In other examples, image processor can also
It is provided in the computer for carrying out execute-in-place or in remote control center.It in an alternate embodiment, can also be by being stored in
Computer, the computer in remote control center or the software in the storage device in controller 150 or algorithm of execute-in-place are to quilt
The image of detection object carries out gray processing and handles to obtain the gray value of each pixel in image.
In general, gray value is smaller to show that object color is deeper, therefore actual state can be based on or need to set the threshold value
Gray value.For example, in an exemplary embodiment, threshold gray value may be set to 30.Controller 150 can be by subject image
In the gray value of each pixel make comparisons with the threshold gray value, determine that gray value is less than the quantity of the pixel of threshold gray value
Percentage (hereinafter referred to as " dark pixels percentage ") relative to total pixel number amount.If being appreciated that all or exhausted big portion
The gray value of point pixel is both less than threshold gray value, then illustrates that the color of the object presented in image is deeper.It can be according to practical need
The threshold percentage is set (for example, by the threshold percentage 85%, 90% or 95%), by what is determined in abovementioned steps
Dark pixels percentage is made comparisons with the threshold percentage, and controls detection device 100 based on comparative result.
For example, in the case where threshold percentage is set to 85%, if controller 150 determine 85% in image with
On the gray value of pixel be both less than threshold gray value (that is, dark pixels percentage be greater than or equal to 85%), then controller 150
It can assert that the color of examined object is relatively deep and should not execute detection operation, and indication laser 110 does not emit laser or termination
Detection operation.In a further embodiment, detection device 100 may also include warning device 160, and controller 150 can be with base
The operation of warning device 160 is controlled in dark pixels percentage and the comparison result of threshold percentage.For example, working as controller 150
When determining that dark pixels percentage is more than threshold percentage, it indicates that warning device 160 sends out alarm signal, with the related behaviour of prompt
Make the current article to be detected of personnel to be not suitable for detecting since color is relatively deep, and/or prompt relevant operation personnel's current detection
Operation has terminated.Alarm signal can be at least one of specific voice signal, picture signal.
If dark pixels percentage is less than or equal to threshold percentage, controller 150 can assert current object to be detected
The shade degree of body is adapted for carrying out detection operation.In the case, controller 150 may indicate that laser 110 emits laser,
To execute subsequent detection operation.
According to another exemplary embodiment, controller 150 can be configured as：Each of image is determined based on described image
The gray value of pixel；Gray value based on each pixel calculates the average gray value of all pixels in described image；And it will
The average gray value is made comparisons with a preset threshold value average gray value, and is controlled the detection based on comparative result and set
It is standby.
For example, threshold value average gray value can be set to 25 or can set it to other numerical value according to actual needs.Such as
The average gray value of all pixels is less than 25 in fruit image, then controller 150 can assert the image color is deeper on the whole, unsuitable
Execute detection operation.In this case, controller 150 may indicate that laser 110 does not emit laser or termination detection operation, together
When may indicate that warning device 160 sends out alarm signal, with prompt relevant operation personnel object should not detect and/or detect operation
It terminates.If average gray value is greater than or equal to the threshold value average gray value, controller 150 can assert that the color of object is deep
Shallow degree operates suitable for executing detection.In the case, controller 150 may indicate that laser 110 emits laser, follow-up to execute
Detection operation.
In other embodiments, it can also judge the face of examined object using other means well known in the prior art
Color depth is shallow, and the operation of detection device 100 is controlled based on judging result.
According to one embodiment of the application, detection device 100 may also include one or more Optical devices, for configuring
Or light path (hereinafter referred to as " laser optical path ") between aiming laser 110 and object to be detected 120, object to be detected 120 with
Light path (hereinafter referred to as " Raman light light path ") and/or imaging device 140 between Raman spectrometer 130 and object to be detected 120
Between light path (hereinafter referred to as " imaging optical path ").
As shown in Figure 1, Optical devices may include the first spectroscope 161, configure in Raman light light path, and be configured
At the laser aiming for emitting laser 110 to object to be detected 120 and the light letter from object to be detected 120 is not interfered with
Number propagation of (Raman diffused light) to Raman spectrometer 130.
As an example, the first spectroscope 161, which can be long wave, leads to dichroscope.Long wave leads to dichroscope and allows generally for wavelength
Light more than predetermined wavelength penetrates, and reflection wavelength is less than the light of predetermined wavelength.Swash using laser irradiation object to be detected
In the case of sending out Raman scattering effect, the frequency of most Raman diffused lights reduces, and wavelength is elongated.Therefore, it properly configures
The long wave leads to the laser with predetermined wavelength that dichroscope can send out laser 110 and is reflected towards object to be detected 120,
And allow to lead to dichroscope towards Raman light by the long wave from the elongated Raman diffused light of the wavelength of object to be detected 120
Spectrometer 130 is propagated.The wavelength that long wave leads to the laser that dichroscope can emit according to laser 110 is configured or is set.
Although in the examples described above, the first spectroscope 161 is illustrated so that long wave leads to dichroscope as an example, this
First spectroscope 161 of application is not limited in long wave and leads to dichroscope, and other wavelength selections known in the art can be used
Light splitting part realizes above-mentioned function.
By the way that the first spectroscope 161 is arranged, laser optical path can be made to merge at least partly with Raman light light path, to have
Conducive to the overall dimensions of reduction detection device.
In addition, as shown in Figure 1, Optical devices 160 may also include the second spectroscope 162, it is also deployed on Raman light light
Lu Zhong, and reflection visible light is further configured to so that imaging device 140 is imaged examined object and allows laser
The laser of 110 transmittings and the Raman diffused light from object to be detected 120 pass through second optical splitter 162.
As an example, second spectroscope 162, which can also be long wave, leads to dichroscope.For example, being using wavelength
In the case of the near-infrared laser of 785nm (that is, laser 110 is configured to the near-infrared laser that launch wavelength is 785nm), by
In the wave-length coverage of visible light be usually 400nm-760nm (a few peoples can perceive 380nm to 780nm), therefore when second light splitting
When mirror 162 is that long wave leads to dichroscope, visible light can be reflected, and the infrared light for allowing wavelength to be more than visible light passes through.
Examined object is imaged in this way, not interfering with imaging device 140, the laser of the transmitting of laser 110 will not be influenced and is come from
The propagation of the Raman diffused light of object to be detected 120.The specific threshold value that long wave leads to dichroscope can be according to actual conditions (example
Such as, the parameters such as wavelength of laser) it is set or is configured.In embodiments herein, it is logical that the second spectroscope 162 is not limited to long wave
Dichroscope can also realize the above-mentioned function of the second spectroscope 162 using other light splitting parts known in the art.
By the way that the second spectroscope 162 is arranged, imaging optical path can be made to merge at least partly with Raman light light path, to have
Conducive to the overall dimensions of reduction detection device.
It should be noted that above example is only through the operation principle that way of example illustrates the utility model, this
Utility model is not limited in above-mentioned specific embodiment, and the first spectroscope 161 and the second spectroscope 162 are also not limited to long wave
Logical dichroscope.For example, in another embodiment, laser 110 emits ultraviolet laser, at this point, the first spectroscope 161 is long wave
Logical dichroscope, and the second spectroscope 162 can be short-pass dichroscope.
As shown in Figure 1, in Raman light light path, the second spectroscope 162 be arranged than the first spectroscope 161 closer to be checked
Surveying object 120, (that is, the second spectroscope 162 is arranged in the upstream side of Raman light light path, and the first spectroscope 161 is arranged in Raman
The downstream side of light light path).However, the utility model is not limited in this specific construction.For example, emitting in laser 110
In the case of ultraviolet laser, the second spectroscope 162 can also be arranged relative to the first spectroscope 1261 under Raman light light path
Side is swum, and the second spectroscope 162 is short-pass dichroscope.As long as in short, allowing most of visible light by the second spectroscope 162
Reflection, most of Raman light are transmitted by the second spectroscope 162.
In another embodiment, Optical devices can also include in addition to the first spectroscope 161 and the second spectroscope 162
Other one or more optical components.
For example, as shown in Figure 1, detection device 100, which may also include, is arranged in Raman light light path 161 downstream of the first spectroscope
The first filter plate 163, the Reyleith scanttering light for being disposed for filtering out in the optical signal after the first spectroscope 161 or other
Invalid stray light, to reduce their interference for Raman spectrometer.In the exemplary embodiment, first filter plate
163 may include long wave pass filter piece or notch filter piece.
In another embodiment, as shown in Figure 1, detection device 100 may also include first point be arranged in laser optical path
Second filter plate 164 of 161 upstream of light microscopic (that is, between laser 110 and first spectroscope 161), is configured to laser
110 send out it is laser-defined in desired wavelength period.In the exemplary embodiment, second filter plate 164 may include
Narrow band filter slice.
In another embodiment, as shown in Figure 1, detection device 100 may also include second point be arranged in imaging optical path
The third filter plate 165 in 162 downstream of light microscopic (that is, between the second spectroscope 162 and imaging device 140), can be configured for
The laser stray light from object 120 is filtered out, unnecessary harm is caused to avoid to imaging device.In exemplary embodiment
In, for example, the third filter plate 165 can be notch filter piece, it is sharp for being filtered out in the detection process of detection device 100
The stray light of light avoids laser stray light from entering imaging device 140 and is damaged to it.
In another embodiment, as shown in Figure 1, detection device 100 may also include setting the second spectroscope 162 with it is to be checked
The first convergent lens for surveying between object 120, is arranged between imaging device 140 and the second spectroscope 162 lens group 166
Second convergent lens or lens group 167, and/or the third being arranged between Raman spectrometer 130 and the first spectroscope 161 are assembled
Lens or lens group 168.First convergent lens or lens group 166 can be used for imaging of the imaging device 140 to object 120, may be used also
For collecting the Raman light of the scattering from object 120 so that more Raman diffused lights can be transferred to Raman spectrum
Instrument, to help to improve detection device 100 detection accuracy and sensitivity.Second convergent lens or lens group 167 can
Imaging for imaging device 140 to object 120.Third convergent lens or lens group 168 can be used for assembling light so that more
Raman diffused light convergence enter Raman spectrometer, to be conducive to improve detection device 100 detection accuracy and sensitivity.
In addition, according to another embodiment, as shown in Figure 1, detection device 100 may also include lighting device 170, for providing
Illumination is provided to examined object 120.In general, detection device 100 has test side, and examined object 120 is close to the detection
End, therefore, it is impossible to provide enough illuminations to the position to be detected of examined object 120 by external light source.By detecting
100 inside of equipment provides or integrated illumination device 170, so that imaging device 140 obtains the clearly figure of examined object 120
Picture.Lighting device 170 may be provided at the position close to test side in detection device 100, for example, as shown in Figure 1, lighting device
170 may be provided between the second spectroscope 162 and examined object 120, can be located at the first convergent lens or lens group 166
Upstream or downstream.In other embodiments, any suitable position in detection device 100 can also be arranged in lighting device
It sets.Lighting device 170 for example may include one or more LED light.
According to the another aspect of the application, a kind of detection method is additionally provided.
Fig. 2 shows the schematical flow charts according to the detection method of one embodiment of the application.As shown in Fig. 2,
After detection device 100 starts (S0), the detection method may include following steps：
Step S10：Obtain the image of examined object；
Step S20：Determine the gray scale of each pixel in image；
Step S30：Determine whether object is adapted to detect for based on the gray scale of the pixel in image；
Step S41：If it is determined that object is adapted to detect for, then detection is executed；With
Step S42：If it is determined that object is unsuitable for detecting, then termination detection.
After detection is completed or after termination detection, the work of detection device 100 terminates (S50).
In the exemplary embodiment, above-mentioned steps can be realized especially by following manner.
In step slo, the image of object 120 to be detected can be obtained by imaging device 140.
In step S20, the image that imaging device 140 obtains can be handled by image processor, to obtain in image
The gray value of each pixel.
Step S30 may include：
S31：The gray value of each pixel is made comparisons with a preset threshold gray value, to determine that gray value is less than threshold value
Percentage (that is, dark pixels percentage) of the quantity of the pixel of gray value relative to total pixel number amount；With
S32：Dark pixels percentage is made comparisons with a preset threshold percentage, if dark pixels percentage is more than
The threshold percentage then judges that object is unsuitable for detecting, and if dark pixels percentage is less than or equal to the threshold value
Percentage then judges that object is adapted for detecting.
In an alternate embodiment, step S30 may include：
S31’：Calculate the average gray value of all pixels in described image；With
S32’：The average gray value is made comparisons with a preset threshold value average gray value, if described average
Gray value is less than the average gray value, then judges that object is unsuitable for detecting, and if the average gray value is more than or waits
In the average gray value, then judge that object is adapted for detecting.
In step S41, laser can be emitted by 150 indication laser 110 of controller to execute detection.
In step S42, laser or termination detection operation can not be emitted by 150 indication laser 110 of controller.This
Outside, step S42 can also include sending out alarm signal by 150 indicating alarm device 160 of controller.
Above detailed description has elaborated above-mentioned Raman spectrum inspection by using schematic diagram, flow chart and/or example
Numerous embodiments of measurement equipment and its monitoring method.Include one or more functions in this schematic diagram, flow chart and/or example
And/or in the case of operation, it will be understood by those skilled in the art that each function in this schematic diagram, flow chart or example and/
Or operation can be by various structures, hardware, software, firmware or substantially their arbitrary combination come individually and/or common real
It is existing.In one embodiment, if the stem portion of theme described in embodiments herein can by application-specific integrated circuit (ASIC),
Field programmable gate array (FPGA), digital signal processor (DSP) or other integrated formats are realized.However, this field skill
Art personnel should be understood that some aspects of embodiments disclosed herein on the whole or partly can equally realize and collect
At the one or more computer programs in circuit, being embodied as running on one or more computer (for example, being embodied as one
The one or more programs run on platform or multiple stage computers system), it is embodied as one run on the one or more processors
A or multiple programs (for example, being embodied as the one or more programs run in one or more microprocessors) are embodied as solid
Part, or substantially it is embodied as the arbitrary combination of aforesaid way, and those skilled in the art will be provided with designing according to the application
The ability of circuit and/or write-in software and/or firmware code.In addition, it would be recognized by those skilled in the art that herein described master
The mechanism of topic can be distributed as the program product of diversified forms, and no matter actually be used for executing the signaling bearer of distribution
How is the concrete type of medium, and the exemplary embodiment of herein described theme is applicable in.The example of signal bearing medium includes
But it is not limited to：Recordable-type media, such as floppy disk, hard disk drive, CD (CD, DVD), digital magnetic tape, computer storage；
And transmission type media, such as number and/or analogue communication medium are (for example, optical fiber cable, waveguide, wired communications links, channel radio
Believe link etc.).
Although shown in the drawings of the specific embodiment of the application, it will be appreciated by a person skilled in the art that even if
One or more non-essential component/component is omitted, the utility model can still be implemented.In addition, although having tied
Close attached drawing and have shown and described multiple exemplary embodiments, but it will be appreciated by persons skilled in the art that can without departing substantially from
To these embodiments, various modifications and variations can be made under the premise of the principle and essence of the application, and therefore, scope of the present application is answered
It is limited by appended claims and its equivalent technical solutions.
Claims (10)
1. a kind of detection device, which is characterized in that the detection device includes：
Laser is configured to object emission laser to be detected；
Raman spectrometer is configured to receive the Raman light from the object；
Imaging device is configured to obtain the image of the object；With
Controller is configured to the operation of detection device described in the gray-scale Control based on described image.
2. detection device according to claim 1, wherein the controller is further configured to：
The gray value of each pixel in described image is determined based on described image；
The gray value of each pixel is made comparisons with threshold gray value, to determine that gray value is less than the number of the pixel of threshold gray value
Measure the percentage relative to total pixel number amount；And
The percentage is made comparisons with threshold percentage, and controls the detection device based on comparative result.
3. detection device according to claim 1, wherein the controller is further configured to：
The gray value of each pixel of described image is determined based on described image；
Gray value based on each pixel calculates the average gray value of all pixels in described image；With
The average gray value is made comparisons with threshold value average gray value, and controls the detection device based on comparative result.
4. detection device according to any one of claim 1 to 3, wherein the detection device further includes：
First spectroscope is arranged in the Raman light light path from the object to the Raman spectrometer and is configured to institute
The laser aiming of laser transmitting is stated to the object and the Raman light from the object is passed across first spectroscope
Transport to the Raman spectrometer.
5. detection device according to claim 4, wherein first spectroscope includes that long wave leads to dichroscope.
6. detection device according to claim 4, wherein the detection device further includes：
Second spectroscope is arranged in the Raman light light path from the object to the Raman spectrometer and is configured to reflect
Visible light is so that imaging device is to the image objects and allows the laser of the laser transmitting and the drawing from the object
Graceful light passes through second spectroscope.
7. detection device according to claim 6, wherein second spectroscope includes that long wave leads to dichroscope.
8. detection device according to claim 6, wherein the detection device further include in following optical component at least
One：
First filter plate, first spectroscope being arranged in the Raman light light path and second spectroscopical downstream and
It is disposed for filtering out the Reyleith scanttering light in optical signal；
Second filter plate is arranged between the laser and first spectroscope and is configured to send out in the laser
It is laser-defined in desired wavelength period；With
Third filter plate is arranged between the imaging device and second spectroscope and is disposed for filtering out and comes from
The laser of object.
9. detection device according to claim 6, wherein the detection device further include in following optical component at least
One：
First convergent lens or lens group are arranged between the second spectroscope and the object；
Second convergent lens or lens group are arranged between imaging device and the second spectroscope；With
Third convergent lens or lens group are arranged between Raman spectrometer and the first spectroscope.
10. detection device according to any one of claim 1 to 3, wherein the detection device further includes：
Light source is configured to provide illumination to the object.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991287A (en) * | 2017-12-26 | 2018-05-04 | 同方威视技术股份有限公司 | Raman spectrum detection device and method based on gradation of image identification |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107991287A (en) * | 2017-12-26 | 2018-05-04 | 同方威视技术股份有限公司 | Raman spectrum detection device and method based on gradation of image identification |
| WO2019128808A1 (en) * | 2017-12-26 | 2019-07-04 | 同方威视技术股份有限公司 | Image gray scale recognition-based raman spectrum detection apparatus and method |
| CN107991287B (en) * | 2017-12-26 | 2023-11-10 | 同方威视技术股份有限公司 | Raman spectrum detection equipment and method based on image gray scale identification |
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