CN100538289C - Differential absorption spectrometer import optic block - Google Patents
Differential absorption spectrometer import optic block Download PDFInfo
- Publication number
- CN100538289C CN100538289C CNB2007101337883A CN200710133788A CN100538289C CN 100538289 C CN100538289 C CN 100538289C CN B2007101337883 A CNB2007101337883 A CN B2007101337883A CN 200710133788 A CN200710133788 A CN 200710133788A CN 100538289 C CN100538289 C CN 100538289C
- Authority
- CN
- China
- Prior art keywords
- lens combination
- optical filter
- light wave
- lens
- telescope
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses a kind of differential absorption spectrometer import optic block, it is characterized in that being provided with a telescope, be disposed with optical filter, lens combination on the telescopical subsequent optical path, from the photoimaging of lens combination outgoing on the entrance slit of difference absorption spectrum instrument; Described optical filter is the optical filter of 490nm-700nm visible light wave range or the optical filter of 287nm-490nm ultraviolet light wave band; Described lens combination is three positive lenss and two negative lens arranged in a crossed manner compositions, and the incident light of ground direction enters telescope and imports lens combination after filter mating plate.The present invention utilizes transmission-type that ultraviolet band and visible light wave range are separately received imaging, thereby effectively reduces aberration, has improved the accuracy of measuring.
Description
Technical field
The invention belongs to a kind of measuring method field, concrete is a kind of collection, converge the differential absorption spectrometer import optic block of the face of land and sky ultraviolet scattered light.
Background technology
The import optical system of difference absorption spectrum instrument is to utilize airborne platform that the ultraviolet band of ground measured object and the light of visible light wave range are passed through a series of optical system imagings on the slit of spectrometer.
The method of at present more external import optical systems adopts reflective method that determinand is imaged on the spectrograph slit.
Face of land object directly converges to reflected light on the spectrograph slit by the reflection unit on the airborne platform.Though visible light wave range and ultraviolet band can both be received, the subject matter of bringing is exactly that aberration is excessive, and follow-up data analysis is had a negative impact.
Summary of the invention
The objective of the invention is to solve the difficult problem that has big difference that present differential absorption spectrometer import optic block measurement brings for a kind of difference spectrograph import optical system is provided.The present invention utilizes transmission-type that ultraviolet band and visible light wave range are separately received imaging, thereby effectively reduces aberration, has improved the accuracy of measuring.
The present invention is achieved by the following technical programs:
Differential absorption spectrometer import optic block is characterized in that being provided with a telescope, is disposed with optical filter, lens combination on the telescopical subsequent optical path, from the photoimaging of lens combination outgoing on the entrance slit of difference absorption spectrum instrument; Described optical filter is the optical filter of 490nm-700nm visible light wave range or the optical filter of 287nm-490nm ultraviolet light wave band; Described lens combination is three positive lenss and two negative lens arranged in a crossed manner compositions, and the incident light of ground direction enters telescope and imports lens combination after filter mating plate.
Positive lens in the described lens combination adopts calcium fluoride material, and negative lens adopts quartz material.
Principal feature of the present invention is as follows:
(1), the method with lens imaging is applied in the import optical system of difference absorption spectrum instrument.
(2), adopt positive negative lens group spherical aberration corrector, the aberration of different materials, finish to coma the correction work of aberrations such as the curvature of field in conjunction with diaphragm simultaneously.
The invention effect
MTF transport function by lens combination lens of the present invention can be found, the camera lens of native system design has good resolution and contrast in certain spatial frequency range, satisfy the demand of airborne imaging system, and then solve the aberration problems of too of differential absorption spectrometer import optic block.Under the situation that does not need reflection unit, by subrane transmission-type imaging method, finish object and be imaged on reception respectively on the slit, when reducing overall volume, improved image quality again.
Description of drawings
Fig. 1 is differential absorption spectrometer import optic block figure of the present invention.
Fig. 2 is lens group structure figure among the present invention.
Embodiment
A kind of differential absorption spectrometer import optic block, a telescope 1 is set, be disposed with optical filter 2, lens combination 3 on the subsequent optical path of telescope 1, described lens combination 3 is three positive lenss and two negative lens arranged in a crossed manner compositions, lens combination adopts the double gauss structure, select the material of quartz (JGS1) for use as negative lens, calcium fluoride (CAF2) reaches best picture element result as the material of positive lens by radius-of-curvature, thickness and the spacing each other of continuing to optimize eyeglass.The optical filter that described optical filter 2 is the 490nm-700nm visible light wave range or the optical filter of 287nm-490nm ultraviolet light wave band; The incident light of ground direction enters telescope 1 and imports lens combination 3 after filter mating plate 2; From the photoimaging of lens combination 3 outgoing on the entrance slit of corresponding wave band difference absorption spectrum instrument 4.
Claims (2)
1, a kind of differential absorption spectrometer import optic block is characterized in that being provided with a telescope, is disposed with optical filter, lens combination on the telescopical subsequent optical path, from the photoimaging of lens combination outgoing on the entrance slit of difference absorption spectrum instrument; Described optical filter is the optical filter of 490nm-700nm visible light wave range or the optical filter of 287nm-490nm ultraviolet light wave band; Described lens combination is three positive lenss and two negative lens arranged in a crossed manner compositions, and the incident light of ground direction enters telescope and imports lens combination after filter mating plate.
2, differential absorption spectrometer import optic block according to claim 1 is characterized in that, the positive lens in the described lens combination adopts calcium fluoride material, and negative lens adopts quartz material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101337883A CN100538289C (en) | 2007-09-30 | 2007-09-30 | Differential absorption spectrometer import optic block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101337883A CN100538289C (en) | 2007-09-30 | 2007-09-30 | Differential absorption spectrometer import optic block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101135588A CN101135588A (en) | 2008-03-05 |
| CN100538289C true CN100538289C (en) | 2009-09-09 |
Family
ID=39159796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101337883A Expired - Fee Related CN100538289C (en) | 2007-09-30 | 2007-09-30 | Differential absorption spectrometer import optic block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100538289C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102023133A (en) * | 2010-10-15 | 2011-04-20 | 浙江大学 | Multispectral hybrid fish eye imaging system for rice canopy |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3700898A (en) * | 1970-02-03 | 1972-10-24 | Sir Howard Grubb Parson & Co L | Instruments for analyzing substances by determining their radiation absorption characteristics |
| US20030094573A1 (en) * | 2001-11-21 | 2003-05-22 | Yaomin Lin | Spectrum measuring apparatus |
| CN2598072Y (en) * | 2003-01-23 | 2004-01-07 | 中国科学院安徽光学精密机械研究所 | Small differential spectrum absorption teaching demonstrator |
| CN1472525A (en) * | 2002-07-30 | 2004-02-04 | 中国石油化工股份有限公司 | On-line near-infrared spectrograph |
| CN2619247Y (en) * | 2003-05-12 | 2004-06-02 | 中国科学院西安光学精密机械研究所 | Front mirror of space modulation interference optical spectrum imagnig instrument |
| US20050041247A1 (en) * | 2003-08-21 | 2005-02-24 | The Regents Of The University Of California | Compact refractive imaging spectrometer utilizing immersed gratings |
| CN1865927A (en) * | 2006-05-18 | 2006-11-22 | 中国科学院安徽光学精密机械研究所 | Passive differential absorption spectrum measuring method for emission flux of nonpoint source and device therefor |
-
2007
- 2007-09-30 CN CNB2007101337883A patent/CN100538289C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3700898A (en) * | 1970-02-03 | 1972-10-24 | Sir Howard Grubb Parson & Co L | Instruments for analyzing substances by determining their radiation absorption characteristics |
| US20030094573A1 (en) * | 2001-11-21 | 2003-05-22 | Yaomin Lin | Spectrum measuring apparatus |
| CN1472525A (en) * | 2002-07-30 | 2004-02-04 | 中国石油化工股份有限公司 | On-line near-infrared spectrograph |
| CN2598072Y (en) * | 2003-01-23 | 2004-01-07 | 中国科学院安徽光学精密机械研究所 | Small differential spectrum absorption teaching demonstrator |
| CN2619247Y (en) * | 2003-05-12 | 2004-06-02 | 中国科学院西安光学精密机械研究所 | Front mirror of space modulation interference optical spectrum imagnig instrument |
| US20050041247A1 (en) * | 2003-08-21 | 2005-02-24 | The Regents Of The University Of California | Compact refractive imaging spectrometer utilizing immersed gratings |
| CN1865927A (en) * | 2006-05-18 | 2006-11-22 | 中国科学院安徽光学精密机械研究所 | Passive differential absorption spectrum measuring method for emission flux of nonpoint source and device therefor |
Non-Patent Citations (2)
| Title |
|---|
| 长程差分吸收光谱中快速扫描光谱仪设计与性能分析. 王锋平等.量子电子学报，第20卷第06期. 2003 |
| 长程差分吸收光谱中快速扫描光谱仪设计与性能分析. 王锋平等.量子电子学报，第20卷第06期. 2003 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102023133A (en) * | 2010-10-15 | 2011-04-20 | 浙江大学 | Multispectral hybrid fish eye imaging system for rice canopy |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101135588A (en) | 2008-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107728300B (en) | Small reflective off-axis telescopic system with wide view field and large relative aperture | |
| CN100568045C (en) | A kind of high resolution imaging self-adaptive optical telescope that is suitable for working by day | |
| CN102928077B (en) | Binary channels is light path miniaturization broadband imaging spectrometer optical system altogether | |
| CN105223699B (en) | A kind of visible light/infrared light two waveband optical system | |
| CN111522132B (en) | Visible light near-infrared wide-spectrum apochromatic image telecentric lens and application thereof | |
| CN110376725B (en) | Fisheye lens system | |
| CN205594223U (en) | Two light imaging lens of long burnt visible light near -infrared of formula of turning back | |
| EP2940506A1 (en) | Rear conversion lens | |
| CN104155000B (en) | A kind of linear gradient optical filter type multi-spectral imager based on secondary imaging | |
| CN104102018A (en) | Double pit local high resolution imaging system | |
| RU175758U1 (en) | Wide Field Solar Sensor | |
| CN203337922U (en) | Large visual field off-axis primary focus type collimator optical system | |
| CN100538289C (en) | Differential absorption spectrometer import optic block | |
| CN103293697A (en) | Large-visual-field off-axis prime focus type collimator optical system | |
| CN1257422C (en) | Binocular refracting-reflecting optical system for satellite multi-spectral imaging instrument | |
| CN103197403B (en) | Aperture-divided optical lens for polarization imager | |
| CN206378636U (en) | The common light path overall view ring belt optical imaging device of active polarization targets improvement | |
| CN112130338B (en) | Optical system capable of realizing integration of sub-wavelength pixel polarizer and detector | |
| CN115079382A (en) | Monitoring lens, camera equipment and head-mounted monitoring device | |
| CN109884776B (en) | Large-view-field, low-distortion and high-spectrum optical system based on pixel-level optical filter | |
| CN109060128A (en) | A kind of imaging spectrum system of visible light and short-wave infrared Shared aperture | |
| CN101694539B (en) | Two-color optical system with ultra-large vision field and large aperture | |
| CN114689174A (en) | Chip-level multispectral camera system and operation method thereof | |
| CN108345095A (en) | A kind of low veiling glare round-the-clock star tracker optical texture of wide cut | |
| CN103900693A (en) | Difference snapshooting type imaging spectrometer and imaging method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20140930 |
|
| EXPY | Termination of patent right or utility model |