CN106053344B - High spectrum image detection cabin, detector and detection method with illumination compensation - Google Patents
High spectrum image detection cabin, detector and detection method with illumination compensation Download PDFInfo
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- CN106053344B CN106053344B CN201610306084.0A CN201610306084A CN106053344B CN 106053344 B CN106053344 B CN 106053344B CN 201610306084 A CN201610306084 A CN 201610306084A CN 106053344 B CN106053344 B CN 106053344B
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- light source
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/061—Sources
Abstract
The present invention discloses a kind of high spectrum image detection cabin with illumination compensation, including sample stage, it further include the light source that top is provided with the lampshade of detection entrance, at least two different spectral bands, the lampshade is set on the sample stage, the surface at its edge and the sample stage fits closely, also, the inner wall of the lampshade is diffusing reflection face；The light source is set on the sample stage, and light is projected to the diffusing reflection face of the lampshade.Invention additionally discloses a kind of, and the high spectrum image including illumination compensation detects the detector in cabin and the method using detector progress small sample spectrum picture detection.The present invention can be while improving illumination uniformity and going the performances such as directionality, pass through the adjustment to lighting source spectral characteristic, the spectral response effect of effective compensation EO-1 hyperion camera data acquisition, an equilibrium, stabilization, repeatable image and spectral detection environment are built, the high spectrum image acquisition and spectral calibration experiment of small sample are particularly suitable for.
Description
Technical field
The present invention relates to a kind of bloom spectrum detection devices, more particularly relate to a kind of high spectrum image with illumination compensation
Cabin and detector are detected, spectrum picture detection technology field is belonged to.
Background technique
Spectrum picture Detection Techniques are extended from fusion development by two kinds of optical detector technologies of image and spectrum, acquire mesh
Mark the multidimensional high spectrum image information in (sample) region, it can be understood as be sub-divided into the continuous multilayer of nano wave length unit magnitude
(tens is even thousands of) color separated image, its one acquisition are equivalent to general camera and have clapped 1,000 multiple monochromes；It can also be with
It is interpreted as being accurate to the orderly solid matter spectra collection group of pixel dimension, is equivalent to conventional spectrograph and acquires millions of spectrum numbers
According to.And for all tangible substances, they are all made of molecule or atom, and every kind of molecule or atom have representative certainly
Own attribute and the spectral signature (molecular fingerprint) for being different from other types, hyperspectral imager are exactly based on detection target area point
These spectral informations of cloth, are analyzed and processed, and provide analysis result (ingredient, distribution, ratio about detecting area spectroscopic data
Rate, trend, function etc.), detection function is very powerful, and working efficiency is very high.However, being set in the detection of small sample spectrum picture
In standby, usual using the lighting source directly projected, this detection device has reflection bright spot in the prevalence of illumination unevenness,
The defects of spectrum is unable to adjust, and repeatability is bad, and environmental factor interference is big.
Summary of the invention
Goal of the invention: present invention aims in view of the deficiencies of the prior art, provide a kind of light uniformly, environmental factor
Interfere the small high spectrum image detection cabin with illumination compensation.
Meanwhile the present invention also provides a kind of high spectrum images comprising having illumination compensation to solve the above problems to detect cabin
Detector.
Moreover, the present invention also provides it is a kind of solve the above problems utilize detector carry out the detection of small sample spectrum picture
Method.
A kind of technical solution: first technical solution provided by the invention are as follows: height with illumination compensation of the present invention
Spectrum picture detects cabin, including sample stage, further includes the light that top is provided with the lampshade of detection entrance, at least two different-wavebands
Source, the lampshade are set on the sample stage, and the surface at edge and the sample stage fits closely, also, the lampshade
Inner wall be diffusing reflection face；The light source is set on the sample stage, and light is projected to the diffusing reflection face of the lampshade.
The technical program is further defined to, and the light source is the spectral response of the photographic means of spectrum and image detection
The light source that characteristic is mutually matched.
Further, the light source is uniformly distributed in the lower edge of the lampshade.
Further, laser focal aperture there are two being also set up at the top of the lampshade.
Further, the bottom of the lampshade is additionally provided with ventilation opening.
Further, two-dimension translational positioning device is additionally provided on the sample stage.
A kind of second technical solution provided by the invention are as follows: high spectrum image detection including above-mentioned with illumination compensation
The detector in cabin further includes lifting support and the photographic means being set on the lifting support and laser designator, the photograph
The data collection terminal of phase device is inserted into the detection entrance, and the Laser emission end of the laser designator is inserted into the laser and is focused
Hole.
Third technical solution provided by the invention are as follows: a kind of to carry out the inspection of small sample spectrum picture using above-mentioned detector
The method of survey carries out as follows:
S1, the brightness for adjusting light source, the spectral response characteristic of the spectrum and photographic means that make light source are mutually matched；
S2, two laser designator are opened, rotates laser axis, so that two hot spots is converged coincidence in sample table surface is two
A laser bright spot；
S3, the focal position for adjusting photographic means, until the picture contrast of two laser bright spot positions in step S2 is anti-
Until difference is most strong；
S4, it is put into sample, adjusts the height of lifting support, be overlapped two laser bright spots in step S2, close laser
Indicator；
S5, light source is opened, starts sample spectra image using photographic means and acquires.
To above-mentioned technical proposal is further defined to adjust the spectrum of light source and the spectrum of photographic means in step S1
The method that response characteristic is mutually matched are as follows:
It is put into spectrum correction blank in lampshade, opens light source, each wave band light source is transferred to intermediate light, adjustment photograph
Device focal length acquires the spectrum picture of blank；
The spectral response curve of image is analyzed, if spectrum shows the higher mountain peak sample response curve of intermediate energy, is adjusted
Reorganize and bring up the light-source brightness for repaying wave band to full strength, until the form of flat platform is presented in the spectral response curve for collecting whiteboard images,
Locked light setting, completes matching.
The utility model has the advantages that a kind of high spectrum image with illumination compensation provided by the invention detects cabin, can be shone improving
Bright uniformity passes through the adjustment to lighting source spectral characteristic, effective compensation EO-1 hyperion phase with while going the performances such as directionality
The spectral response effect of machine data acquisition, builds an equilibrium, stabilization, repeatable image and spectral detection environment, especially suitable
Close the high spectrum image acquisition and spectral calibration experiment of small sample；Detector provided by the invention and detection method have used band
There is the high spectrum image detection cabin of illumination compensation, under the conditions of panorama Uniform Illumination, the spectral response of detector is stablized, and makes to detect
As a result precisely.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the high spectrum image provided by the invention with illumination compensation detects cabin；
Fig. 2 is the structural representation of the detector provided by the invention that cabin is detected comprising the high spectrum image with illumination compensation
Figure.
Specific embodiment
Technical solution of the present invention is described in detail below by attached drawing, but protection scope of the present invention is not limited to
The embodiment.
Embodiment 1: the present embodiment provides a kind of, and the high spectrum image with illumination compensation detects cabin, and structural schematic diagram is such as
Shown in Fig. 1, the light source 3 including sample stage, lampshade 2 and at least two different-wavebands.
The lampshade 2 is set on the sample stage 1, section semicircular in shape, and the surface at edge and the sample stage 1 is tight
Closely connected conjunction, also, the inner wall of the lampshade 2 is diffusing reflection face.The top center of lampshade 2 is provided with detection entrance 4, moreover, also setting
It sets there are two laser focal aperture 5, laser focal aperture 5 is respectively arranged at the two sides of the monitoring entrance 4.Moreover, the bottom of lampshade 2
It is additionally provided with ventilation opening 6, for controlling the temperature inside detection cabin, the ambiance around sample is adjusted, keeps sampling condition
Consistency.
The light source 3 is set on the sample stage 1, also, is uniformly distributed in the lower along position, light source 3 of the lampshade 2
The controller control being arranged on sample stage.When work, the light of light source 3 is projected to the diffusing reflection face of the lampshade 2.And
And the light source that the light source 3 is mutually matched for the spectral response characteristic of spectrum and the photographic means of image detection, if light source 3
Spectrum it is undesirable, can by regulate and control light source brightness, be adjusted.The light that light bulb issues is not direct throw in sample
On, but lampshade inner surface is invested, after surface diffusion and repeatedly refraction, sample is uniformly invested from each position of hemisphere inner wall
Product form an ideal shadowless lighting environment.
Moreover, two-dimension translational positioning device 7 is additionally provided on the sample stage 1 of the present embodiment, convenient for sample movement and alignment
Position.
The detector in the high spectrum image detection cabin provided in this embodiment including above-mentioned with illumination compensation, structure are shown
It is intended to as shown in Figure 1, further including lifting support 8 and the photographic means being set on the lifting support 8 and laser designator, institute
The data collection terminal for stating photographic means 9 is inserted into the detection entrance 4, and the Laser emission end insertion of the laser designator is described to swash
Light focal aperture 5, laser designator is for positioning of focusing.
The method provided in this embodiment for carrying out the detection of small sample spectrum picture using above-mentioned detector, feature exist
In progress as follows:
S1, the brightness for adjusting light source 3, are mutually matched the spectrum of light source 3 and the spectral response characteristic of photographic means 9.
The method that the spectral response characteristic of the spectrum and photographic means (9) that adjust light source (3) is mutually matched are as follows:
It is put into spectrum correction blank in lampshade (2), opens light source (3), by main wave band light source and compensation wave band light source tune
To intermediate light, photographic means (9) focal length is adjusted, the spectrum picture of blank is acquired；
The spectral response curve for analyzing image is typically due to the spectral response characteristic of camera, can be in the main wave band of spectrum
Between position it is photosensitive relatively strong, form mountain peak sample response curve, the light-source brightness of the wave band of adjustment compensation at this time (promotes shortwave compensation respectively
Compensated with long wave), whiteboard images and analysis exposure effect are resurveyed, can be appreciated that spectral response curve flatwise at this time, it is high
The position at peak changes to planform shape, therefore, if the middle position of the main wave band of spectrum forms mountain peak sample response curve, repeatedly
The light-source brightness of adjustment compensation wave band, until the form that flat platform is presented in the spectral response curve for collecting whiteboard images is
Only, locked light is set, and completes matching.For intuitive and quick completion spectral response complementation matching, factory can design when debugging
One debugging routine, the intensity signal on corresponding wavelength position (ROI) by transferring camera, monitors the blank received in real time
Effect to be illuminated, while regulating and controlling Light Source Compensation effect, reach requirement.
S2, two laser designator are opened, rotates laser axis, so that two hot spots is converged coincidence in sample table surface is two
A laser bright spot.
S3, the focal position for adjusting photographic means 9, until the picture contrast of two laser bright spot positions in step S2 is anti-
Until difference is most strong.
S4, it is put into sample, adjusts the height of lifting support 8, is overlapped two laser bright spots in step S2, close laser
Indicator.
S5, light source (3) are opened, starts sample spectra image using photographic means 9 and acquires.
As described above, must not be explained although the present invention has been indicated and described referring to specific preferred embodiment
For the limitation to invention itself.It without prejudice to the spirit and scope of the invention as defined in the appended claims, can be right
Various changes can be made in the form and details for it.
Claims (7)
1. a kind of high spectrum image with illumination compensation detects cabin, including sample stage (1), which is characterized in that further include top
It is provided with the lampshade (2) of detection entrance (4), the light source (3) of at least two different-wavebands, the lampshade (2) is set to the sample
On platform (1), the surface at edge and the sample stage (1) is fitted closely, also, the inner wall of the lampshade (2) is diffusing reflection face；
The light source (3) is set on the sample stage (1), and light is projected to the diffusing reflection face of the lampshade (2)；The lampshade
(2) there are two being also set up at the top of laser focal aperture (5).
2. a kind of high spectrum image with illumination compensation according to claim 1 detects cabin, which is characterized in that the light
Source (3) is the light source that the spectral response characteristic of the photographic means of spectrum and image detection is mutually matched.
3. a kind of high spectrum image with illumination compensation according to claim 1 detects cabin, which is characterized in that the light
Source (3) is uniformly distributed in the lower edge of the lampshade (2).
4. a kind of high spectrum image with illumination compensation according to claim 1 detects cabin, which is characterized in that the lamp
The bottom of cover (2) is additionally provided with ventilation opening (6).
5. a kind of high spectrum image with illumination compensation according to claim 1 detects cabin, which is characterized in that the sample
Two-dimension translational positioning device (7) are additionally provided in sample platform (1).
6. the detection that one kind includes the described in any item high spectrum image detection cabins with illumination compensation of claim 1 ~ 5
Device, which is characterized in that including lifting support (8) and the photographic means and laser designation that are set on the lifting support (8)
The data collection terminal of device, the photographic means (9) is inserted into the detection entrance (4), the Laser emission end of the laser designator
It is inserted into the laser focal aperture (5).
7. a kind of method for carrying out the detection of small sample spectrum picture using detector as claimed in claim 6, feature exist
In progress as follows:
S1, the brightness for adjusting light source (3), are mutually matched the spectrum of light source (3) and the spectral response characteristic of photographic means (9)；
In step S1, the spectrum of light source (3) and the method that is mutually matched of spectral response characteristic of photographic means (9) are adjusted are as follows:
It is put into spectrum correction blank in lampshade (2), opens light source (3), each wave band light source is all transferred to intermediate light, adjusts
Photographic means (9) focal length, acquires the spectrum picture of blank；
The spectral response curve of image is analyzed, if spectrum is shown as intermediate higher mountain peak shape form, wave band on the weak side is turned up
Light-source brightness, until collect whiteboard images spectral response curve present flat platform form until, locked light is set
It is fixed, complete matching；
S2, two laser designator are opened, rotates laser axis, so that two hot spots is converged coincidence in sample table surface and swash for one
Bright point；
S3, the focal position for adjusting photographic means (9), until the picture contrast contrast of two laser bright spot positions in step S2
Until most strong；
S4, it is put into sample, adjusts the height of lifting support (8), makes two laser bright spots in step S2 in sample collection surface
It is overlapped, closes laser designator；
S5, light source (3) are opened, starts sample spectra image using photographic means (9) and acquires.
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| CN201610306084.0A CN106053344B (en) | 2016-05-10 | 2016-05-10 | High spectrum image detection cabin, detector and detection method with illumination compensation |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106439524A (en) * | 2016-11-28 | 2017-02-22 | 北京慧眼智行科技有限公司 | Illuminating device for acquiring implicit information |
| CN109682472A (en) * | 2017-10-19 | 2019-04-26 | 红塔烟草(集团)有限责任公司 | Dome light source |
| CN107796819B (en) * | 2017-11-29 | 2023-06-02 | 周大生珠宝股份有限公司 | Dome light source diamond measuring instrument and diamond measuring method |
| CN110196246B (en) * | 2018-02-26 | 2022-02-22 | 成都艾立本科技有限公司 | Laser-induced breakdown-Raman spectrum combined system |
| WO2021119954A1 (en) * | 2019-12-16 | 2021-06-24 | 谱诉光电科技（苏州）有限公司 | Weak light measurement method |
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