CN105516537A - Hyper-spectral scanner - Google Patents
Hyper-spectral scanner Download PDFInfo
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- CN105516537A CN105516537A CN201610073273.8A CN201610073273A CN105516537A CN 105516537 A CN105516537 A CN 105516537A CN 201610073273 A CN201610073273 A CN 201610073273A CN 105516537 A CN105516537 A CN 105516537A
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- Prior art keywords
- speculum
- mirror
- group
- light
- spectroscope
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
- H04N1/0282—Using a single or a few point light sources, e.g. a laser diode
- H04N1/02825—Using a single or a few point light sources, e.g. a laser diode in combination with at least one reflector which is fixed in relation to the light source
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
- H04N1/0282—Using a single or a few point light sources, e.g. a laser diode
- H04N1/0284—Using a single or a few point light sources, e.g. a laser diode in combination with a light integrating, concentrating or diffusing cavity
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Spectrometry And Color Measurement (AREA)
Abstract
The invention relates to a hyper-spectral scanner. The hyper-spectral scanner is used for detecting a spectrum of a detected object. The hyper-spectral scanner comprises a light source, a reflector set, a spectroscope set and an imaging module, wherein the light source, the reflector set, the spectroscope set and the imaging module are sequentially arranged. The reflector set is used for reflecting light reflected by the detected object to the spectroscope set; the spectroscope set comprises a first polarizer and a second polarizer which are sequentially arranged; the imaging module comprises a matrix detector, and the matrix detector is used for receiving various-wave-band light subjected to light splitting to generate electric signals corresponding to the various-wave-band light. In the hyper-spectral scanner, the light is subjected to light splitting through the first polarizer and the second polarizer, no prism or no optical grating needs to be adopted for light splitting, the resolution ratio is increased, it is avoided that scanning is carried out through a mechanical structure, the structure is simple, and accuracy is high.
Description
Technical field
The present invention relates to spectral imaging technology field, particularly relate to a kind of EO-1 hyperion scanner.
Background technology
Scanner, is utilize photoelectric technology and digital processing technology, with scan mode, figure or image information is converted to the device of digital signal.Scanner is normally used for computer external instrument equipment, by catching image and it being converted to the digitlization input equipment that computer can show, edits, stores and export.Scanner comparison film, page of text, drawing, fine arts picture, photographic negative, film film, even the three dimensional object such as textile, label panel, printed board sample all can be used as sweep object, extracts and converts original lines, figure, word, photo, plane material object to can edit and add in file device.Its image conversion digital input equipment combined as a kind of optical, mechanical and electronic integration, has just obtained with its excellent performance and cheap price and promotes rapidly and apply widely since appearance.
Especially, in geological prospecting, the image polychromatic light of complicated component can be decomposed into spectrum line by EO-1 hyperion scanner, very important in modern geological prospecting.In existing spectrum scanner, adopt prismatic decomposition or adopt grating beam splitting, although adopt prismatic decomposition structure simple, spectral resolution is low, can not satisfy the demand; Although adopt grating beam splitting to improve resolution to a certain extent, need to utilize mechanical structure to carry out motion scan, after using a period of time, precision is difficult to ensure.
Summary of the invention
Based on this, be necessary to provide a kind of resolution higher and the simple EO-1 hyperion scanner of structure.
A kind of EO-1 hyperion scanner, for detecting the spectrum of measurand, it comprises the light source, speculum group, spectroscope group and the imaging modules that set gradually, the light that described speculum group is used for measurand reflects reflexes to described spectroscope group, described spectroscope group comprises the first polariscope and the second polariscope that set gradually, described imaging modules comprises planar array detector, described planar array detector for receiving each wave band light after described light-splitting processing, to produce the signal of telecommunication of corresponding each wave band light.
In above-mentioned EO-1 hyperion scanner, adopting the first polariscope and the second polariscope to carry out light splitting to light, without the need to adopting prism or grating beam splitting, both improve resolution, avoid again adopting mechanical structure to scan, structure is simple, and precision is higher.
Wherein in an embodiment, described speculum group comprises the first speculum, the second speculum, the 3rd speculum and the 4th speculum, and described first speculum, described second speculum, described 3rd speculum and described 4th speculum are set in turn in the light path of measurand reflection ray.
Wherein in an embodiment, the reflecting surface of described first speculum is towards measurand, the reflecting surface of described second speculum is towards described first speculum and described 3rd speculum and the side be arranged on away from described spectroscope group, described 3rd speculum is arranged on the side near described spectroscope group, and the reflecting surface of described 4th speculum is towards described spectroscope group and be disposed adjacent side by side with described second speculum.
Wherein in an embodiment, described first polariscope is Wollaston mirror, and described second polariscope is Glan Taylor mirror.
Wherein in an embodiment, described spectroscope group comprises the first Glan Taylor mirror, the first Wollaston mirror, the second Wollaston mirror and the second Glan Taylor mirror that set gradually, described first Glan Taylor mirror is arranged on the side near described speculum group, and described second Glan Taylor mirror is arranged on the side away from described speculum group.
Wherein in an embodiment, described first Glan Taylor mirror, described first Wollaston mirror, described second Wollaston mirror and described second Glan Taylor mirror are set in turn in the light path of the emergent ray of described speculum group.
Wherein in an embodiment, described imaging modules also comprises the collimating mirror be located between described planar array detector and described spectroscope group.
Wherein in an embodiment, described EO-1 hyperion scanner also comprises the imaging lens be located between described speculum group and described spectroscope group, and described imaging lens is used for the emergent ray of described speculum group to focus on.
Wherein in an embodiment, described EO-1 hyperion scanner also comprises two cameras, and described camera and described spectroscope group lay respectively at the both sides of described imaging modules, and two described cameras are respectively to the photoimaging of different-waveband.
Wherein in an embodiment, described EO-1 hyperion scanner also comprises the driving mechanism for driving measurand rotation and/or movement.
Accompanying drawing explanation
Fig. 1 is the structural representation of the EO-1 hyperion scanner of an embodiment;
Fig. 2 is the part planar structural representation of the EO-1 hyperion scanner shown in Fig. 1.
Embodiment
For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.Preferred embodiment of the present invention is given in accompanying drawing.But the present invention can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present invention more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present invention understand usually.The object of term used in the description of the invention herein just in order to describe specific embodiment, is not intended to be restriction the present invention.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
As shown in Figure 1, a kind of EO-1 hyperion scanner of this preferred embodiment, for detecting the spectrum of measurand 10, comprises the light source 20, speculum group 40, spectroscope group 60 and the imaging modules 80 that set gradually.Speculum group 40 reflexes to spectroscope group 60 for light measurand 10 reflected, spectroscope group 60 comprises the first polariscope and the second polariscope that set gradually, imaging modules 80 comprises planar array detector 802, planar array detector 802 for receiving each wave band light after described light-splitting processing, to produce the signal of telecommunication of corresponding each wave band light.
In this EO-1 hyperion scanner, adopting the first polariscope and the second polariscope to carry out light splitting to light, without the need to adopting prism or grating beam splitting, both improve resolution, avoid again adopting mechanical structure to scan, structure is simple, and precision is higher.
In the present embodiment, light source 20 is line source.Because light source 20 is line source, therefore narrow slit structure is set without the need to not needing, the light that light source 20 sends can shine directly in measurand 10, neither there is the loss of luminous flux, it also avoid in narrow slit structure and part light is filtered, may exist the real not problem of the detection of the light that measurand 10 reflects.Particularly, the parallel measurand 10 of light source 20 and establishing.
In the present embodiment, speculum group 40 comprises the first speculum 402, second speculum 404, the 3rd speculum 406 and the 4th speculum 408, first speculum 402, second speculum 404, the 3rd speculum 406 and the 4th speculum 408 and is set in turn in the light path of measurand 10 reflection ray.Particularly, the reflecting surface of the first speculum 402 is towards measurand 10, the reflecting surface of the second speculum 404 is towards the first speculum 402 and the 3rd speculum 406 and the side be arranged on away from spectroscope group 60,3rd speculum 406 is arranged on the side near spectroscope group 60, and the reflecting surface of the 4th speculum 408 is towards spectroscope group 60 and be disposed adjacent side by side with the second speculum 404.
More specifically, measurand 10 and the first speculum 402 are all positioned on the vertical line of light axis of spectroscope group 60, and the 4th speculum 408 is positioned on the light axis of spectroscope group 60.First speculum 402 and the 3rd speculum 406 lay respectively at the both sides of the light axis of spectroscope group 60.Second speculum 404 and the 4th speculum 408 mirror image are arranged.Due to the setting of each speculum of speculum group 40, can more rational layout light path, the emergent ray of measurand 10 is projected spectroscope group 60, improves resolution and the accuracy of EO-1 hyperion scanner.
In the present embodiment, the first polariscope can be Wollaston mirror, and the second polariscope can be Glan Taylor mirror.In the present embodiment, spectroscope group 60 only adopts Wollaston mirror and Glan Taylor mirror, without the need to prism or grating, can realize high-resolution light splitting.
More specifically, please refer to Fig. 2, spectroscope group 60 comprises the first Glan Taylor mirror 602, first Wollaston mirror 604, second Wollaston mirror 606 and the second Glan Taylor mirror 608 set gradually, first Glan Taylor mirror 602 is arranged on the side near speculum group 40, and the second Glan Taylor mirror 608 is arranged on the side away from speculum group 40.That is, the first Glan Taylor mirror 602, first Wollaston mirror 604, second Wollaston mirror 606 and the second Glan Taylor mirror 608 are set in turn in the light path of the emergent ray of speculum group 40.In the present embodiment, spectroscope group 60 only adopts the first Glan Taylor mirror 602, first Wollaston mirror 604, second Wollaston mirror 606 and the second Glan Taylor mirror 608 set gradually, and without the need to prism or grating, can realize high-resolution light splitting.
In the present embodiment, imaging modules 80 also comprises the collimating mirror be located between planar array detector 802 and spectroscope group 60.Particularly, collimating mirror comprises and being located near the focus lamp 804 of spectroscope group 60 and the cylindrical mirror 806 away from spectroscope group 60.Focus lamp 804, for light focusing, produces interference fringe image, cylindrical mirror 806 pairs of light refractions, produces the face image of interfering.Planar array detector 802, for receiving each wave band light after described light-splitting processing, to produce the signal of telecommunication of corresponding each wave band light, exports the signal of collection of illustrative plates unification.
In the present embodiment, EO-1 hyperion scanner also comprises the imaging lens 90 be located between speculum group 40 and spectroscope group 60, and imaging lens 90 is for focusing on the emergent ray of speculum group 40.In this EO-1 hyperion scanner, because the light of imaging lens 90 pairs of speculum groups 40 outgoing focuses on, therefore, employing 3 groups of optical elements are needed to adopt the mode filtered respectively to the mode of the image formation by rays of different-waveband compared to existing technology, employing one component light microscopic group 60 and imaging modules 80 is only needed in this EO-1 hyperion scanner, simplify the structure, saved cost.
In the present embodiment, EO-1 hyperion scanner also comprises two camera (not shown), and camera and spectroscope group 60 lay respectively at the both sides of imaging modules 80, and two cameras are respectively to the photoimaging of different-waveband.
In the present embodiment, EO-1 hyperion scanner also comprises for driving measurand 10 to rotate and/or the driving mechanism (not shown) of movement.Measurand 10 is rotated and/or is moved, and the composition at each position of measurand 10 can be made to be detected and analyze.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this specification is recorded.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an EO-1 hyperion scanner, for detecting the spectrum of measurand, it is characterized in that, comprise the light source, speculum group, spectroscope group and the imaging modules that set gradually, the light that described speculum group is used for measurand reflects reflexes to described spectroscope group, described spectroscope group comprises the first polariscope and the second polariscope that set gradually, described imaging modules comprises planar array detector, described planar array detector for receiving each wave band light after described light-splitting processing, to produce the signal of telecommunication of corresponding each wave band light.
2. EO-1 hyperion scanner according to claim 1, it is characterized in that, described speculum group comprises the first speculum, the second speculum, the 3rd speculum and the 4th speculum, and described first speculum, described second speculum, described 3rd speculum and described 4th speculum are set in turn in the light path of measurand reflection ray.
3. EO-1 hyperion scanner according to claim 2, it is characterized in that, the reflecting surface of described first speculum is towards measurand, the reflecting surface of described second speculum is towards described first speculum and described 3rd speculum and the side be arranged on away from described spectroscope group, described 3rd speculum is arranged on the side near described spectroscope group, and the reflecting surface of described 4th speculum is towards described spectroscope group and be disposed adjacent side by side with described second speculum.
4. EO-1 hyperion scanner according to claim 1, is characterized in that, described first polariscope is Wollaston mirror, and described second polariscope is Glan Taylor mirror.
5. EO-1 hyperion scanner according to claim 1, it is characterized in that, described spectroscope group comprises the first Glan Taylor mirror, the first Wollaston mirror, the second Wollaston mirror and the second Glan Taylor mirror that set gradually, described first Glan Taylor mirror is arranged on the side near described speculum group, and described second Glan Taylor mirror is arranged on the side away from described speculum group.
6. EO-1 hyperion scanner according to claim 1, it is characterized in that, described first Glan Taylor mirror, described first Wollaston mirror, described second Wollaston mirror and described second Glan Taylor mirror are set in turn in the light path of the emergent ray of described speculum group.
7. EO-1 hyperion scanner according to claim 1, is characterized in that, described imaging modules also comprises the collimating mirror be located between described planar array detector and described spectroscope group.
8. EO-1 hyperion scanner according to claim 1, is characterized in that, described EO-1 hyperion scanner also comprises the imaging lens be located between described speculum group and described spectroscope group, and described imaging lens is used for the emergent ray of described speculum group to focus on.
9. the EO-1 hyperion scanner according to claim 1 or 8, it is characterized in that, described EO-1 hyperion scanner also comprises two cameras, and described camera and described spectroscope group lay respectively at the both sides of described imaging modules, and two described cameras are respectively to the photoimaging of different-waveband.
10. EO-1 hyperion scanner according to claim 1, is characterized in that, described EO-1 hyperion scanner also comprises the driving mechanism for driving measurand rotation and/or movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610073273.8A CN105516537A (en) | 2016-02-02 | 2016-02-02 | Hyper-spectral scanner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610073273.8A CN105516537A (en) | 2016-02-02 | 2016-02-02 | Hyper-spectral scanner |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000055882A1 (en) * | 1999-03-18 | 2000-09-21 | Cambridge Research & Instrumentation Inc. | High-efficiency multiple probe imaging system |
| CN102914368A (en) * | 2011-08-05 | 2013-02-06 | 精工爱普生株式会社 | Polarization state measurement apparatus and polarization state measurement method |
| CN102944310A (en) * | 2012-11-23 | 2013-02-27 | 西安交通大学 | Spectral resolution adjustable interference imaging spectrometer |
| CN104506750A (en) * | 2014-12-03 | 2015-04-08 | 中国科学院遥感与数字地球研究所 | Hyperspectral scanner |
-
2016
- 2016-02-02 CN CN201610073273.8A patent/CN105516537A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000055882A1 (en) * | 1999-03-18 | 2000-09-21 | Cambridge Research & Instrumentation Inc. | High-efficiency multiple probe imaging system |
| CN102914368A (en) * | 2011-08-05 | 2013-02-06 | 精工爱普生株式会社 | Polarization state measurement apparatus and polarization state measurement method |
| CN102944310A (en) * | 2012-11-23 | 2013-02-27 | 西安交通大学 | Spectral resolution adjustable interference imaging spectrometer |
| CN104506750A (en) * | 2014-12-03 | 2015-04-08 | 中国科学院遥感与数字地球研究所 | Hyperspectral scanner |
Non-Patent Citations (2)
| Title |
|---|
| 张冬青 等: "基于双Wollaston 棱镜偏振干涉成像光谱仪的光通量分析", 《曲阜师范大学学报》 * |
| 张淳民 等: "偏振干涉成像光谱仪中格兰-泰勒棱镜全视场角透过率的分析与计算", 《物理学报》 * |
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