CN108415144A - A kind of preposition camera lens of polarization imaging - Google Patents
A kind of preposition camera lens of polarization imaging Download PDFInfo
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- CN108415144A CN108415144A CN201810133919.6A CN201810133919A CN108415144A CN 108415144 A CN108415144 A CN 108415144A CN 201810133919 A CN201810133919 A CN 201810133919A CN 108415144 A CN108415144 A CN 108415144A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/0075—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element having an element with variable optical properties
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/286—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising for controlling or changing the state of polarisation, e.g. transforming one polarisation state into another
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- Optics & Photonics (AREA)
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Abstract
The invention belongs to imaging detection technical fields, a kind of preposition camera lens of polarization imaging, by the way that pre-objective, polarization module, postposition object lens are arranged, and polarization module is further designed, the polarization module includes polarization arrays device, the polarization arrays device is included in the polarization unit of the multigroup array arrangement of same base plane, and micro- polarizing film that the polarization unit is identical by multiple sizes, polarization direction is different is constituted；And the polarization module is arranged at the image space focal plane of the pre-objective, and at the same time by polarization module setting in the rear object space focal plane of glove mirror.It realizes and configures the preposition camera lens of polarization imaging on conventional imaging detection system, you can realize polarization imaging detection；The configuration of the present invention is simple, real-time stabilization, detection mode is flexible and changeable, can meet the detection application demand of different field.
Description
Technical field
The invention belongs to imaging detection technical fields, and in particular to a kind of preposition camera lens of polarization imaging.
Background technology
Polarization optics imaging is polarized mainly by shooting several through the modulated intensity image of different analyzers
Information extraction is realized.It is particularly suitable for stealthy, false target detection identification, it can under the adverse circumstances such as haze, flue dust
Improve the target acquisition recognition capability of photoelectric detection equipment.According to the difference for obtaining image mode, the imaging of existing polarization optics
System is broadly divided into two major classes：Timesharing polarized imaging system and simultaneously polarized imaging system.Wherein, timesharing polarized imaging system knot
Structure is relatively easy, is suitable for carrying out polarization imaging to static target, is mainly used for the principle verification of polarization imaging.It polarizes simultaneously
Imaging system is complicated, can carry out polarization imaging to moving target, have stronger adaptability.
But the imaging lens of imaging detector former configuration are all non-partial shape formulas at present, can only realize light intensity detection, so
And need polarization imaging to detect under many specific conditions, and the detection of existing polarization imaging is all a whole set of special equipment,
It is expensive, and usable condition is single, and puzzlement is brought to detection operations.
Invention content
In view of the above problems, the present invention is intended to provide a kind of preposition camera lens of polarization imaging.
In order to solve the above technical problems, one aspect of the present invention is to provide a kind of polarization imaging preset lens
Head, before the preposition camera lens of the polarization imaging is mounted on imaging system, including coaxial arrangement：
Pre-objective, the pre-objective is being imaged target；
Polarization module, the polarization module are located at the rear of the pre-objective, and the polarization module is to preceding glove
The light of mirror transmission carries out polarization manipulation；
Postposition object lens, the postposition object lens are located at the rear of the polarization module, and the postposition object lens are to polarization mode
The light of block transmission is collimated；
The imaging system realizes polarization imaging detection to receive the light of postposition object lens transmission.
Further, the polarization module is arranged at the image space focal plane of the pre-objective.
Further, the polarization module is arranged at the object space focal plane of glove mirror in the rear.
As an improvement the polarization module is polarization arrays device, the micro- polarizing film of each of described polarization arrays device
Size is proportional to the pixel size of imaging detection system focal plane arrays (FPA), the amplification of the ratio and the postposition object lens
Multiplying power is related.
It is improved as further, the polarization arrays device is included in the polarization of the multigroup array arrangement of same base plane
Unit, micro- polarizing film that the polarization unit is identical by multiple sizes, polarization direction is different are constituted.
Further, there are four micro- polarizing films for the polarization unit tool, wherein three micro- polarizing films have
Different saturating polarization directions, another described micro- polarizing film size is identical but unpolarized of specific polarization direction.
Further, the polarization module further includes the wide spectrum achromatic waveplate being arranged in front of polarizing film array device.
Furthermore the pre-objective is non-focus optical system, and it includes convergence optical systems and parallelization optical system.
Finally, the convergence optical system is made of non-spherical lens, and the non-spherical lens compares institute by coefficient of thermal expansion
The big glass material of quartz is stated to be formed；The parallelization optical system is made of biconcave lens, and the biconcave lens is by the stone
English is formed.
A kind of preposition camera lens of polarization imaging of the present invention, by the way that pre-objective, polarization module and postposition object lens are arranged, and to inclined
Module of shaking further is designed, and the polarization module includes polarization arrays device, and the polarization arrays device is included in same substrate
The polarization unit of the multigroup array arrangement of plane, micro- polarizing film that the polarization unit is identical by multiple sizes, polarization direction is different
It constitutes；And the polarization module is arranged at the image space focal plane of the pre-objective, and at the same time by the polarization module
It is arranged at the object space focal plane of glove mirror in the rear.It is preposition to realize the configuration polarization imaging on conventional imaging detection system
Camera lens, you can realize polarization imaging detection；The configuration of the present invention is simple, real-time stabilization, detection mode is flexible and changeable, can meet difference
The detection application demand in field.
Description of the drawings
Fig. 1 is a kind of preposition camera lens logical construction schematic diagram of polarization imaging of the present invention；
Fig. 2 is a kind of preposition camera lens polarization arrays device schematic diagram of polarization imaging of the present invention.
Specific implementation mode
The preposition camera lens of a kind of polarization imaging provided by the invention is illustrated below in conjunction with Fig. 1-2.
As shown in Figure 1, the present invention provides a kind of preposition camera lens of polarization imaging, it is mounted in imaging system comprising coaxial
It is arranged：
Pre-objective, the pre-objective is being imaged distant object 1；Embodiment as one preferred, this
It invents the pre-objective and specifically uses optical system, it includes convergence optical systems and parallelization optical system.As into one
The preferred embodiment of step, the convergence optical system are made of non-spherical lens, and the non-spherical lens compares institute by coefficient of thermal expansion
The big glass material of quartz is stated to be formed；The parallelization optical system is made of biconcave lens, and the biconcave lens is by the stone
English is formed.
Polarization module, the polarization module are located at the rear of the pre-objective, and the polarization module is to preceding glove
The light of mirror transmission carries out polarization manipulation；As a preferred embodiment of the present invention, polarization module of the present invention can be with
Including the wide spectrum achromatic waveplate being arranged in front of polarizing film array device.The present invention is being not provided with wide spectrum achromatic waveplate
When, it can be achieved that simultaneously polarization imaging detect；An amount of polarization can be surveyed if wide spectrum achromatic waveplate is set, but cannot more
Simultaneously, wide spectrum achromatic waveplate, which needs to rotate, could realize full polarimetry.The present invention provides this kind of selection mode, can be with
It is selected according to different situations when measuring, has detection mode flexible and changeable, the detection application of different field can be met
The advantages that demand.As a kind of preferred embodiment of the present invention, the image space coke in the pre-objective is arranged in the polarization module
At plane；Further, the polarization module is arranged at the object space focal plane of glove mirror in the rear.
The polarization module is polarization arrays device as a preferred method, as shown in Fig. 2, the polarization arrays device
The size of each micro- polarizing film is proportional to the pixel size of imaging detection system focal plane arrays (FPA), the ratio with it is described
The enlargement ratio of postposition object lens is related.
As a further improvement, the polarization arrays device includes the polarization unit of multigroup array arrangement, and the polarization is single
Micro- polarizing film that member is identical by multiple sizes, polarization direction is different is constituted.
As a kind of preferred embodiment of the present invention, there are four micro- polarizing films for the polarization unit tool, wherein three institutes
Stating micro- polarizing film has different saturating polarization directions, another described micro- polarizing film is without saturating polarization direction.
Postposition object lens, the postposition object lens are located at the rear of the polarization module, and the postposition object lens are to polarization mode
The light of block transmission is collimated；
Pre-objective, polarization module and postposition object lens constitute the preposition camera lens of polarization imaging, are polarized of the present invention
As preposition camera lens be mounted on imaging system on, the imaging system to receive postposition object lens transmission light polarization can be realized
Imaging detection.
A kind of preposition camera lens of polarization imaging of the present invention, by the way that pre-objective, polarization module, postposition object lens and imaging system is arranged
System, and polarization module is further designed, the polarization module includes polarization arrays device, and the polarization arrays device is included in
The polarization unit of the same multigroup array arrangement of base plane, the polarization unit is identical by multiple sizes, polarization direction is different
Micro- polarizing film is constituted；And the polarization module is arranged at the image space focal plane of the pre-objective, and at the same time will be described
Polarization module setting is in the rear at the object space focal plane of glove mirror.It realizes and configures polarization on conventional imaging detection system
It is imaged preposition camera lens, you can realize polarization imaging detection；The configuration of the present invention is simple, real-time stabilization, detection mode is flexible and changeable, can
Meet the detection application demand of different field.
Mode the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this
Equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field is included within the scope of the present invention.
Claims (9)
1. a kind of preposition camera lens of polarization imaging, which is characterized in that before being mounted on imaging system, including coaxial arrangement：
Pre-objective, the pre-objective is being imaged target；
Polarization module, the polarization module are located at the rear of the pre-objective, and the polarization module is passing pre-objective
Defeated light carries out polarization manipulation；
Postposition object lens, the postposition object lens are located at the rear of the polarization module, and the postposition object lens are passing polarization module
Defeated light is collimated；
The imaging system realizes polarization imaging detection to receive the light of postposition object lens transmission.
2. the preposition camera lens of polarization imaging as described in claim 1, which is characterized in that the polarization module is arranged described preposition
At the image space focal plane of object lens.
3. the preposition camera lens of polarization imaging as described in claims 1 or 2 any one, which is characterized in that the polarization module is set
It sets at the object space focal plane of glove mirror in the rear.
4. the preposition camera lens of polarization imaging as claimed in claim 3, which is characterized in that the polarization module is polarization arrays device,
The pixel size of each of the polarization arrays device size of micro- polarizing film and the imaging detection system focal plane arrays (FPA) at than
Example, the ratio are related to the enlargement ratio of postposition object lens.
5. the preposition camera lens of polarization imaging as claimed in claim 4, which is characterized in that the polarization arrays device is included in same base
The polarization unit of the multigroup array arrangement in baseplane, micro- polarization that the polarization unit is identical by multiple sizes, polarization direction is different
Piece is constituted.
6. the preposition camera lens of polarization imaging as claimed in claim 5, which is characterized in that there are four described micro- for the polarization unit tool
Polarizing film, wherein three micro- polarizing films have different saturating polarization directions, another described micro- polarizing film size identical but special
Unpolarized of fixed saturating polarization direction.
7. the preposition camera lens of polarization imaging as described in claim 1, which is characterized in that the polarization module further includes being arranged inclined
The wide spectrum achromatic waveplate to shake in front of chip arrays device.
8. the preposition camera lens of polarization imaging as described in claim 1, which is characterized in that the pre-objective is optical system,
Including convergence optical system and parallelization optical system.
9. the preposition camera lens of polarization imaging as claimed in claim 8, which is characterized in that the convergence optical system is by aspherical
Mirror is constituted, and the non-spherical lens is formed by the coefficient of thermal expansion glass material bigger than the quartz；The parallelization optical system
System is made of biconcave lens, and the biconcave lens is formed by the quartz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810133919.6A CN108415144A (en) | 2018-02-09 | 2018-02-09 | A kind of preposition camera lens of polarization imaging |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810133919.6A CN108415144A (en) | 2018-02-09 | 2018-02-09 | A kind of preposition camera lens of polarization imaging |
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| CN108415144A true CN108415144A (en) | 2018-08-17 |
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| CN201810133919.6A Pending CN108415144A (en) | 2018-02-09 | 2018-02-09 | A kind of preposition camera lens of polarization imaging |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130338A (en) * | 2019-12-06 | 2020-12-25 | 中国科学院长春光学精密机械与物理研究所 | Optical system capable of realizing integration of sub-wavelength pixel polarizer and detector |
Citations (7)
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| CN102169018A (en) * | 2010-12-17 | 2011-08-31 | 中国科学院光电技术研究所 | Lighting device of infrared imaging optical reading system |
| CN102944937A (en) * | 2012-11-27 | 2013-02-27 | 北京理工大学 | Sub-aperture polarization imaging system |
| CN103063303A (en) * | 2012-12-21 | 2013-04-24 | 南京理工大学 | Spectrum polarization detection device and method for synchronous polarization modulation interference imaging |
| CN104216135A (en) * | 2014-09-05 | 2014-12-17 | 西北工业大学 | Micro-polarizing film array used for acquiring full-polarization parameters and production method and application thereof |
| CN105181141A (en) * | 2015-09-22 | 2015-12-23 | 中国科学院光电研究院 | Heterodyne polarization interference spectral imaging method and spectrometer |
| CN205642622U (en) * | 2016-02-28 | 2016-10-12 | 苏州大学 | Thermal infrared divides aperture polarization imaging optics system |
| CN107014490A (en) * | 2017-04-17 | 2017-08-04 | 大连理工大学 | One kind point focal plane type real-time polarization imaging system |
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2018
- 2018-02-09 CN CN201810133919.6A patent/CN108415144A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102169018A (en) * | 2010-12-17 | 2011-08-31 | 中国科学院光电技术研究所 | Lighting device of infrared imaging optical reading system |
| CN102944937A (en) * | 2012-11-27 | 2013-02-27 | 北京理工大学 | Sub-aperture polarization imaging system |
| CN103063303A (en) * | 2012-12-21 | 2013-04-24 | 南京理工大学 | Spectrum polarization detection device and method for synchronous polarization modulation interference imaging |
| CN104216135A (en) * | 2014-09-05 | 2014-12-17 | 西北工业大学 | Micro-polarizing film array used for acquiring full-polarization parameters and production method and application thereof |
| CN105181141A (en) * | 2015-09-22 | 2015-12-23 | 中国科学院光电研究院 | Heterodyne polarization interference spectral imaging method and spectrometer |
| CN205642622U (en) * | 2016-02-28 | 2016-10-12 | 苏州大学 | Thermal infrared divides aperture polarization imaging optics system |
| CN107014490A (en) * | 2017-04-17 | 2017-08-04 | 大连理工大学 | One kind point focal plane type real-time polarization imaging system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112130338A (en) * | 2019-12-06 | 2020-12-25 | 中国科学院长春光学精密机械与物理研究所 | Optical system capable of realizing integration of sub-wavelength pixel polarizer and detector |
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