CN205861215U - Gazing type Multispectral microscope - Google Patents
Gazing type Multispectral microscope Download PDFInfo
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- CN205861215U CN205861215U CN201620441885.3U CN201620441885U CN205861215U CN 205861215 U CN205861215 U CN 205861215U CN 201620441885 U CN201620441885 U CN 201620441885U CN 205861215 U CN205861215 U CN 205861215U
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- driving means
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Abstract
This utility model provides a kind of gazing type Multispectral microscope, including: microscopic system 4, dispersion element 2, driving means 3 and detector 1；The optical axis of described microscopic system 4 is respectively perpendicular to the surface of described dispersion element 2 and the pixel surface of described detector 1；Described dispersion element 2 is between described microscopic system 4 and described detector 1；Described driving means 2 drives dispersion element 2 to move between described microscopic system 4 and described detector 1.It is obtained in that the multispectral image under fixing visual field by the movement of dispersion element, thus has saved production finished product, and reduce structure complexity.
Description
Technical field
This utility model relates to light spectrum image-forming field, in particular to a kind of gazing type Multispectral microscope.
Background technology
Spectral imaging technology possesses detecting light spectrum and the ability of spatial information simultaneously, is widely used in verification retrieval, food
The various fields such as product examine survey, precision agriculture, resource detection, camouflage identification, biologic medical.Light spectrum image-forming mainly pushes away the type of sweeping and coagulates
Depending on two kinds of imaging modes of type.Conventionally employed prism, grating are as the spectral imaging technology of beam splitter and push away the type of sweeping, and utilize narrow
Seam limits visual field, through prism, grating dispersion, is disposably projected on detector focal plane by the slit image of each wave band.Push away
Sweep type light spectrum image-forming to need to obtain complete data cube by the movement of platform or detection target.Therefore, possess at self
Push away more use on platforms such as sweeping the satellite of motion, aircraft.But, push away and sweep type light spectrum image-forming mode in some occasion discomfort
With, in such as operation process, system entire scan produces interference to the doctor in charge, now needs to use gazing type multispectral imaging
System.
But, current gazing type multi-optical spectrum imaging system uses acousto-optic tunable filter (Acousto Optic
Tunable Filter, AOTF) or liquid crystal tunable filter (Liquid Crystal Tunable Filter, LCTF) etc.
Tunable filter part, utilizes light spectrum image-forming wavelength band that this type of method implements and wave band number limited, and resolution is relatively low, and knot
Structure is complicated, relatively costly.
Summary of the invention
The purpose of this utility model provides a kind of gazing type Multispectral microscope, it is possible to realize high spectral resolution and width
The light spectrum image-forming of wavelength band.
This utility model provides a kind of gazing type Multispectral microscope, including: microscopic system 4, dispersion element 2, driving dress
Put 3 and detector 1；The optical axis of described microscopic system 4 is respectively perpendicular to surface and the described detector 1 of described dispersion element 2
Pixel surface；Described dispersion element 2 is between described microscopic system 4 and described detector 1；Described driving means 3 drives
Dispersion element 2 moves between described microscopic system 4 and described detector 1.It is obtained in that fixing by the movement of dispersion element
Multispectral image under visual field, thus saved production finished product, and reduce structure complexity.
Accompanying drawing explanation
The structural representation of the gazing type Multispectral microscope that Fig. 1 provides for this utility model embodiment；
Fig. 2 is the schematic diagram that this utility model embodiment obtains multispectral image.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly
Chu, it is fully described by.Based on embodiment of the present utility model, those of ordinary skill in the art are not under having creative work premise
The every other embodiment obtained, belongs to protection domain of the present utility model.
The structural representation of a kind of gazing type Multispectral microscope that Fig. 1 provides for this utility model embodiment.Such as Fig. 1 institute
Showing, this multispectral microscopic system specifically includes that
Microscopic system 4, dispersion element 2, driving means 3 and detector 1.
It should be noted that dispersion element 2 and driving means 3 are properly termed as dispersion spectrophotometric unit, dispersion spectrophotometric unit can
To be integrated in microscopic system 4, as a part for microscopic system 4；It is also used as single parts, with microscopic system 4 points
Offer and put.
Dispersion element 2 is split for realizing the spectrum to target object, and dispersion element 2 can be such as that wavelength gradual change filters
Sheet, multispectral optical filter etc..
Driving means 3 drives dispersion element 2 in the plane on pixel surface being parallel to detector 1, and edge is perpendicular to detection
The direction of device pixel array is moved.
Further, it should be noted that dispersion element 2 does not require consistent with the size of detection image planes, dispersion element 2 edge
Length L1 of moving direction can be equal in length L2 being perpendicular to pixel array direction with detector pixel array, it is also possible to no
Deng.
The move mode of dispersion element 2 can be such as: the left hand edge of dispersion element 2 is from the pixel surface of detector 1
One end enters, and the other end removal from the pixel surface of detector 1, i.e. the high order end of dispersion element 2 enters detector 1 at first
Pixel array region, under the drive of driving means 3, progresses into the pixel array region of detector 1, dispersion with certain speed
Element 2 gradually overlaps with the pixel array of detector 1, is further continued for advancing, until the low order end removal detector of dispersion element 2
Pixel array region.
Certainly, dispersion element can also use move mode from top to bottom, as long as moving direction is perpendicular to detector picture
Unit row or column to.
Wherein, the optical axis of microscopic system 4 is vertical with dispersion element 2 surface, detector 1 surface respectively.It is also understood that
The surface of dispersion element 2, the surface of detector 1 are parallel to the focal plane of optical imaging system.
Detector 1 for obtaining and record multispectral image information by photoelectric effect, detector 1 can be such as CCD,
CMOS etc..
The pixel array received of described detector 1 is through the spectrum of dispersion element 2, it is thus achieved that the bands of a spectrum energy after spectrum segmentation
Amount.
Image in the pixel surface of detector 1 through dispersion element 2 from the light of microscopic system 4 outgoing, thus detector 1
Different pixel arrays obtain different spectral image information, when whole dispersion element 2 enters from the side on detector 1 pixel surface
Entering, during opposite side removal, detector 1 is obtained with each bands of a spectrum image under same visual field, thus obtains fixing regarding
Multispectral image after the match.
Each bands of a spectrum image under same visual field is known as the complete data cube of fixing visual field, now, no
Only have the information of image, also include segmenting in spectrum dimension, the spectroscopic data of every bit on image can be obtained, can obtain again and appoint
The image information of one spectral coverage.
It should be noted that dispersion element reversely movement can obtain the spectral image information of future time.Therefore, pass through
Dispersion element is one-dimensional to be moved back and forth, and obtains the spectroscopic data cube under different time.
Further, described spectrum can include ultraviolet spectra, visible spectrum and infrared spectrum.
Below the working method of the multi-optical spectrum imaging system that this utility model embodiment provides is described in detail:
Step 1, fixing microscopic system and the relative position of detector so that through the light collection of microscopic system in detection
At the focal plane of device, to obtain target object image clearly at detector surface；
Step 2, determines the spectrum (λ of dispersion element surface various locationi), this step can realize by demarcating test,
Concrete scaling method can be:
Spectrophotometer sends monochromatic light, impinges perpendicularly on dispersion element surface, and the light measuring hot spot irradiation position is set a song to music
Line, demarcates centre wavelength (λ with micrometeri) the corresponding hot spot point of irradiation position on dispersion element.
As in figure 2 it is shown, the various location on dispersion element surface has different spectrum i.e. wavelength division, such as λ0-
λn, each spectrum is at for example, 0.05mm of the width occupied by dispersion element surface.
Step 3, is placed in dispersion element in a plane on parallel detector pixel surface, and this plane is positioned at described micro-
In the image planes of system or adjacent locations or be close to the surface of detector.
Step 4, driving means drives dispersion element to initial position, and wherein, initial position is detector image planes surfaces
Edge, if dispersion element enters from the right side of multi-optical spectrum imaging system, then initial position is the right on detector image planes surface
Edge；
Step 5, calculates the translational speed needed for dispersion element:
The translational speed of dispersion element can be arranged according to the collection frame frequency of the calibration result of step 2 and detector.
The collection frame frequency of detector is N, and every section of spectrum is a (mm) in the geometric widths that dispersion element occupies, then dispersion unit
The translational speed of part is a/ (1/N)=a*N (unit: mm/s).
Such as, the collection frame frequency of detector is 60 (frame/s), and every section of spectrum in the geometric position that dispersion element occupies is
During 0.05mm, the translational speed of dispersion element is 3mm/s.
Step 6, driving means, according to the translational speed of the dispersion beam splitter calculated in step 5, drives dispersion element to exist
Move in plane between microscopic system and detector.
Such as shown in Fig. 2, the right-hand member of the dispersion element high order end from the pixel surface of detector initially enters, until dispersion
The low order end on the left end removal detector pixel surface of element.
Step 7, detector gathers the spectroscopic data of target object the most in the same time.
As in figure 2 it is shown, m0、m1……mnFor the pixel position in the pixel array of detector, λ0……λnFor dispersion element
The different spectrum that upper diverse location is corresponding.
In dispersion element moving process, the single-spectral images that detector collects the most in the same time is different.
At t0Moment, detector pixel array m0(different light spectrum image-formings are to several row corresponding on detector for the band 0 of position
Or several row pixels, referred to as one band, 0 is band sequence number, mentions similar as follows) gather corresponding to λ0Spectrum, detector
Except m0Outside station acquisition be full spectra image；
At t1In the moment, extract λ0The m of corresponding detector1The band 0 of position and extraction λ1The m of corresponding detector0Position
Band 1；
The like, at t2n-1In the moment, extract λn-1The m of corresponding detectornThe band n-1 of position and extraction λnCorresponding spy
Survey the m of devicen-1The band n of position；
At t2nIn the moment, extract λnThe m of corresponding detectornThe band n of position；
So, when the pixel surface of dispersion element removal detector, the same light that detector difference band is received
Spectrum λiImage splice, the different spectrum pictures under fixing visual field can be obtained.
Dispersion element reversely movement can obtain the spectral image information of future time.Therefore, one-dimensional by dispersion element
Move back and forth, obtain the spectroscopic data cube under different time.
This utility model embodiment is by being placed in dispersion element between microscopic system and detector, by mobile dispersion
Element can obtain the multispectral image under fixing visual field.Compared with conventional gazing type light spectrum image-forming mode, simple in construction, cost
Decline.
Claims (4)
1. a gazing type Multispectral microscope, it is characterised in that including: microscopic system (4), dispersion element (2), driving means
And detector (1) (3)；
The optical axis of described microscopic system (4) is respectively perpendicular to surface and the picture of described detector (1) of described dispersion element (2)
Unit surface；
Described dispersion element (2) is positioned between described microscopic system (4) and described detector (1)；
Described driving means (3) drives dispersion element (2) to move between described microscopic system (4) and described detector (1)；
Described microscopic system (4), described dispersion element (2), described driving means (3) integrate；Or described dispersion element
(2) and described driving means (3) is as dispersion spectrophotometric unit, it is respectively provided with described microscopic system (4).
2. microscope as claimed in claim 1, it is characterised in that the moving direction of described dispersion element (2) and described detection
The row or column of device (1) is to vertically.
3. microscope as claimed in claim 2, it is characterised in that described dispersion element (2) is described from described detector (1)
The one end on pixel surface enters, the other end removal from the described pixel surface of described detector (1).
4. microscope as claimed in claim 1, it is characterised in that described dispersion element (2) is positioned at the picture of described microscopic system
On face or adjacent locations or be close to the surface of detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620441885.3U CN205861215U (en) | 2016-05-16 | 2016-05-16 | Gazing type Multispectral microscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620441885.3U CN205861215U (en) | 2016-05-16 | 2016-05-16 | Gazing type Multispectral microscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205861215U true CN205861215U (en) | 2017-01-04 |
Family
ID=57643616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620441885.3U Active CN205861215U (en) | 2016-05-16 | 2016-05-16 | Gazing type Multispectral microscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205861215U (en) |
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2016
- 2016-05-16 CN CN201620441885.3U patent/CN205861215U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200116 Address after: Room B101, optoelectronic industry incubator Co., Ltd., 1759 Mingxi Road, Beihu science and Technology Development Zone, Changchun City, Jilin Province 130000 Patentee after: Changchun Changguang Chenpu Technology Co., Ltd Address before: 130033 southeast Lake Road, Jilin, Changchun, No. 3888 Patentee before: Changchun Inst. of Optics and Fine Mechanics and Physics, Chinese Academy of Sci |
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| TR01 | Transfer of patent right |