CN107830929A - A kind of multispectral imaging device - Google Patents
A kind of multispectral imaging device Download PDFInfo
- Publication number
- CN107830929A CN107830929A CN201711079781.8A CN201711079781A CN107830929A CN 107830929 A CN107830929 A CN 107830929A CN 201711079781 A CN201711079781 A CN 201711079781A CN 107830929 A CN107830929 A CN 107830929A
- Authority
- CN
- China
- Prior art keywords
- ccd camera
- optical filter
- experiments
- liquid crystal
- tunable optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000701 chemical imaging Methods 0.000 title claims abstract description 15
- 230000003287 optical effect Effects 0.000 claims abstract description 26
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 22
- 238000002474 experimental method Methods 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims 1
- 238000003384 imaging method Methods 0.000 abstract description 5
- 230000003595 spectral effect Effects 0.000 description 6
- 241001269238 Data Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/2823—Imaging spectrometer
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/2823—Imaging spectrometer
- G01J2003/2826—Multispectral imaging, e.g. filter imaging
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention relates to a kind of imaging device, the living things feature recognition field of multispectral imaging is applied particularly to.The present invention includes base, Experiments of Optics plate, CCD camera lenses, object lens, in addition to liquid crystal tunable optical filter and CCD camera, wherein, three Experiments of Optics plates are fixedly mounted on base, the bottom of Experiments of Optics plate is bolted on base, and CCD camera, liquid crystal tunable optical filter and object lens are fixedly mounted in three Experiments of Optics plates respectively, and CCD camera lenses are arranged on the front end of CCD camera.Preferably：Above-mentioned CCD camera is visible ray near-infrared area array CCD camera；It is further：The wave-length coverage of above-mentioned liquid crystal tunable optical filter 4 is：400 to 720nm, 650 to 1100nm, 850 to 1800nm, 1200 to 2450nm, a width of 20nm of its half-peak.This multispectral imaging device is compact-sized, compact, and collecting efficiency is high.
Description
Technical field
The present invention relates to a kind of imaging device, the living things feature recognition field of multispectral imaging is applied particularly to.
Background technology
The spectral characteristic of biological skin can be as the important information source of biological characteristic, and it is special independent of the details of itself
Sign, not by rotate, the change such as posture, expression is influenceed, there is relative stability, while the spectral characteristic of skin can reflect
Go out the uniqueness of skin color, the skin of different biologies has different spectral characteristics.Enriched using multispectral facial image
Spectral characteristic, and the traditional biological feature such as space geometry in effective integration image, can solve to run into living things feature recognition
Problems, effectively improve recognition accuracy.
Traditional multispectral imaging device uses mechanical turning wheel optical filter, and the wave-length coverage of its optical filter is not easy to tune, and
And the efficiency of collection is low.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of multispectral imaging device that can adjust optical filter wavelength.
The technical solution adopted for the present invention to solve the technical problems is：A kind of multispectral imaging device, including base, light
Brassboard, CCD camera lenses, object lens, in addition to liquid crystal tunable optical filter and CCD camera are learned, wherein, three are fixedly mounted on base
Experiments of Optics plate, the bottom of Experiments of Optics plate are bolted on base, and CCD is fixedly mounted respectively in three Experiments of Optics plates
Camera, liquid crystal tunable optical filter and object lens, CCD camera lenses are arranged on the front end of CCD camera.
Preferably：Above-mentioned CCD camera is visible ray near-infrared area array CCD camera.
It is further：The wave-length coverage of above-mentioned liquid crystal tunable optical filter 4 is：400 to 720nm, 650 to 1100nm, 850
To 1800nm, 1200 to 2450nm, a width of 20nm of its half-peak.
The beneficial effects of the invention are as follows：
Multispectral imaging device of the present invention, using liquid crystal tunable optical filter, its wavelength selectable range is wider, whole imaging dress
Put compact-sized, compact, picking rate is fast, and there is more preferable biological characteristic to give birth to other property.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structure principle chart of the present invention.
Description of reference numerals:
1- bases, 2-CCD cameras, 3-CCD camera lenses, 4- liquid crystal tunable optical filters, 5- object lens, 6- Experiments of Optics plates, 7-
Control box, 8-C-mount camera lenses, 9- camera lenses.
Embodiment
Below in conjunction with the accompanying drawings and embodiment describes the specific embodiment of the invention：
The structure that Fig. 1,2 show one embodiment of the invention, as illustrated, the present invention provides a kind of multispectral imaging device, it is main
Will be by liquid crystal tunable optical filter 4（LCTF）Form with CCD camera 2, visited using the visible ray near-infrared area array CCD of high detectivity
Survey device and coordinate high performance liquid crystal tunable optical filter 4 and the light-splitting device of correlation, keep spatial resolution and signal to noise ratio
On the basis of can obtain the spectral image datas of up to tens wave bands of object of observation.
The present apparatus also includes：Base 1, Experiments of Optics plate 6, CCD camera lenses 3, object lens 5.Wherein, 3 are fixedly mounted on base 1
Experiments of Optics plate 6, as shown in figure 1, the bottom of Experiments of Optics plate 6 is bolted on base 1, three Experiments of Optics plates 6 are right
CCD camera 2 should be fixedly mounted, liquid crystal tunable optical filter 4, object lens 5, CCD camera lenses 3 are installed in the front end of CCD camera 2.
Image-forming principle of the present invention is as shown in Figure 2.
This multispectral imaging device（As shown in Figure 1）Based on liquid crystal tunable optical filter 4（LCTF) developed with CCD camera 2, profit
Coordinate high performance liquid crystal tunable optical filter 4, light-splitting device and prestige with the visible ray near-infrared area array CCD detector of high detectivity
Remote device, is imaged in a manner of staring.The imaging moiety liquid crystal tunable optical filter 4 of the device substitutes traditional mechanical turning wheel filter
Mating plate, this optical filter are electric tunables, and liquid crystal tunable optical filter 4 chooses difference, its imaging spectral scope and wave band number
Also different, its response time more accelerates.The multispectral liquid crystal filters of Varispec that CRI companies of the U.S. are researched and developed can be in wavelength model
Enclose 400 to 720nm, 650 to 1100nm, 850 to 1800nm, 1200 to 2450nm etc. plurality of optional, a width of 20nm of its half-peak.
In the installation process of front end, CCD camera 2 is fixed with liquid crystal tunable optical filter 4 with optics brassboard 6, makes not incline between each other
Tiltedly, problem is rolled.
Above-mentioned liquid crystal tunable optical filter 4 includes a control box 7, and the control box 7 is connected with the USB port of background computer,
Powered by USB port, light-wave energy decay is very big in filtering process, the problem of causing light transmittance of optical filter low, can pass through height
Gain camera compensates.
The preferred embodiment for the present invention is explained in detail above in conjunction with accompanying drawing, but the invention is not restricted to above-mentioned implementation
Mode, can also be on the premise of present inventive concept not be departed from those of ordinary skill in the art's possessed knowledge
Various changes can be made.
Many other changes and remodeling can be made by not departing from the spirit and scope of the present invention.It should be appreciated that the present invention is not
It is limited to specific embodiment, the scope of the present invention is defined by the following claims.
Claims (4)
1. a kind of multispectral imaging device, including base（1）, Experiments of Optics plate（6）, CCD camera lenses（3）, object lens（5）, its feature
It is：Also include liquid crystal tunable optical filter（4）And CCD camera（2）, wherein, base（1）Three Experiments of Optics of upper fixed installation
Plate（6）, Experiments of Optics plate（6）Bottom be bolted to base（1）On, three Experiments of Optics plates（6）It is inside fixed respectively to pacify
Fill CCD camera（2）, liquid crystal tunable optical filter（4）And object lens（5）, CCD camera lenses（3）Installed in CCD camera（2）Front end.
A kind of 2. multispectral imaging device as claimed in claim 1, it is characterised in that：The CCD camera（2）It is near for visible ray
Infrared area array CCD camera.
A kind of 3. multispectral imaging device as claimed in claim 2, it is characterised in that：The liquid crystal tunable optical filter（4）'s
Wave-length coverage is：400 to 720nm, 650 to 1100nm, 850 to 1800nm, 1200 to 2450nm, a width of 20nm of its half-peak.
A kind of 4. multispectral imaging device as claimed in claim 3, it is characterised in that：The liquid crystal tunable optical filter（4）
Also include a control box（7）, the control box（7）It is connected with the USB port of background computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711079781.8A CN107830929A (en) | 2017-11-06 | 2017-11-06 | A kind of multispectral imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711079781.8A CN107830929A (en) | 2017-11-06 | 2017-11-06 | A kind of multispectral imaging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107830929A true CN107830929A (en) | 2018-03-23 |
Family
ID=61654614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711079781.8A Pending CN107830929A (en) | 2017-11-06 | 2017-11-06 | A kind of multispectral imaging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107830929A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113325648A (en) * | 2021-07-07 | 2021-08-31 | 台州安奇灵智能科技有限公司 | Spectral imaging system based on guest-host liquid crystal tunable filter |
| CN113405661A (en) * | 2021-06-16 | 2021-09-17 | 维沃移动通信有限公司 | Optical sensor and electronic device |
| CN115426459A (en) * | 2022-08-30 | 2022-12-02 | 广州星博科仪有限公司 | Multispectral camera and pre-exposure optimization method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162826A (en) * | 2011-12-14 | 2013-06-19 | 飞秒光电科技(西安)有限公司 | Multispectral imaging system |
| CN203324160U (en) * | 2013-06-03 | 2013-12-04 | 常州晨凯光电科技有限公司 | Fixing device of multispectral imaging system |
-
2017
- 2017-11-06 CN CN201711079781.8A patent/CN107830929A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162826A (en) * | 2011-12-14 | 2013-06-19 | 飞秒光电科技(西安)有限公司 | Multispectral imaging system |
| CN203324160U (en) * | 2013-06-03 | 2013-12-04 | 常州晨凯光电科技有限公司 | Fixing device of multispectral imaging system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405661A (en) * | 2021-06-16 | 2021-09-17 | 维沃移动通信有限公司 | Optical sensor and electronic device |
| CN113325648A (en) * | 2021-07-07 | 2021-08-31 | 台州安奇灵智能科技有限公司 | Spectral imaging system based on guest-host liquid crystal tunable filter |
| CN115426459A (en) * | 2022-08-30 | 2022-12-02 | 广州星博科仪有限公司 | Multispectral camera and pre-exposure optimization method thereof |
| CN115426459B (en) * | 2022-08-30 | 2024-05-21 | 广州星博科仪有限公司 | Multispectral camera and pre-exposure optimization method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Geelen et al. | A tiny VIS-NIR snapshot multispectral camera | |
| CN107830929A (en) | A kind of multispectral imaging device | |
| JP2021506168A (en) | Light field image processing method for depth acquisition | |
| CN103091258B (en) | A kind of multi-spectral imager based on liquid zoom technology | |
| JP2013512621A5 (en) | ||
| CN111077093A (en) | Method and device for quickly detecting coal gangue based on multispectral technology | |
| CN112985600B (en) | Spectrum coding imaging system and method based on diffraction | |
| CN106052870A (en) | High resolution infrared imaging spectrometer and imaging method thereof | |
| TW202107068A (en) | Image acquisition chip, object imaging identification equipment and object imaging identification method | |
| CN104713648A (en) | Full-wave-band achromatism filter type spectral camera | |
| CN102589695B (en) | Method and system for imaging spectrum | |
| CN105067116B (en) | The joining method and system of a kind of Frame projection imaging spectrometer data | |
| CN205681547U (en) | A kind of multichannel polarization and infrared image capturing system | |
| CN103516964B (en) | Camera shooting unit and device, camera display integrated device and camera shooting method | |
| CN104501973B (en) | Solar atmosphere multiband high-resolution tomography device based on adaptive optical system | |
| CN106768324A (en) | A kind of light spectrum image-forming microsensor | |
| CN110475036B (en) | Multi-spectral-band ceramic spectrum reduction system and method | |
| Hao et al. | The development of snapshot multispectral imaging technology based on artificial compound eyes | |
| CN107084788A (en) | A kind of multi-optical spectrum imaging system | |
| CN104535191B (en) | Polarization spectral imaging measuring structure based on magnetic vortice light and AOTF | |
| CN103162826A (en) | Multispectral imaging system | |
| CN207689359U (en) | A kind of portable type ground high-spectrum imager | |
| CN203275280U (en) | Microspectral imaging device based on liquid-crystal filtering device | |
| CN104614320A (en) | Total reflection type hyperspectral imaging observation system | |
| CN204495469U (en) | A kind of all band achromatism filter disc type spectrum camera |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180323 |