CN109632102A - Infrared polarization image measuring device based on rotatory polarization piece - Google Patents
Infrared polarization image measuring device based on rotatory polarization piece Download PDFInfo
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- 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
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Abstract
The present invention relates to a kind of infrared polarization image measuring devices based on rotatory polarization piece, including infrared optical lens, it is multi-direction be polarized unit, infrared focal plane detector and control unit, the infrared optical lens are adjusted acquisition detection light beam to the polarised light of target scene；The multi-direction direction that is polarized for being polarized unit by changing to detection light beam, acquisition difference are polarized direction light beam；Infrared focal plane detector is polarized the imaging of direction light beam to difference, obtains difference and is polarized the infrared intensity image of direction light beam and exports；Described control unit for control it is multi-direction be polarized sequence of unit transformation and be polarized direction, so that infrared focal plane detector is obtained to correspond to sequential transformations and be polarized the difference in direction with pre-determined frame rate and is polarized the infrared intensity image of direction light beam.The present invention can be used for moving or the measurement of variation targets scene.
Description
Technical field
The present invention relates to infrared polarization imaging measurement technology field more particularly to it is a kind of based on rotatory polarization piece it is infrared partially
Shake image measuring device.
Background technique
Polarization imaging detection is a kind of novel target acquisition technology, compared with conventional electrophotographic Detection Techniques, not only
The radiation intensity information that target scene can be obtained can also obtain the polarization parameters such as degree of polarization, the angle of polarization, polarization ellipticity, and
The dimension for increasing detection target scene information has great importance to target detection and identification is improved.
With gradually increasing to infrared polarization imaging detection application demand, infrared polarization imaging mode is also constant
Ground development, Infrared Polarization Imaging Technology more typical at present are broadly divided into two major classes: time sharing mode and simultaneous type mode.Wherein timesharing
Type Infrared Polarization Imaging Technology obtains same target scene in the polarization state image of different moments by way of rotatory polarization piece,
Its device has the advantages that structure is simple, cost is relatively low, extinction ratio is high, luminous flux is high, be suitable for static target infrared polarization at
As detection；And simultaneous type Infrared Polarization Imaging Technology is that target scene different polarization states image is obtained using the single exposure time,
Its speed of detection is fast, can be used for moving or variation targets polarization imaging detects.Simultaneous type infrared polarization is imaged
Divide amplitude type, divide the aperture focal plane Xing Hefen type.Wherein divide amplitude type infrared polarization detection mode optical path adjusting difficult, energy declines
Subtract larger, system bulk weight is big；Divide aperture type infrared polarization detection mode loss of spatial resolution more, image registration is more
Complexity, resolution ratio are low；Divide micro- polarization arrays manufacture difficulty of focal plane type infrared polarization imaging big, the encapsulation between focal plane
Difficulty is high, and extinction ratio is low, and spatial resolution is low.
Since there are a degree of deficiencies for three of the above simultaneous type infrared polarization imaging detection mode, so current
In the detection of Infrared Targets polarization characteristic, most common mode or the detection of time sharing mode infrared polarization.
Therefore, against the above deficiency, need to improve existing time sharing mode infrared polarization Detection Techniques, make it in energy
Decay small, on the basis of the advantage of High Extinction Ratio, the infrared polarization information of moving target scene can be measured, there is measurement result
Real-time.
Summary of the invention
The technical problem to be solved in the present invention is that being only applicable to for existing time sharing mode infrared polarization Detection Techniques to quiet
Only target carries out the defect of infrared polarization imaging detection, provides a kind of infrared polarization imaging measurement dress based on rotatory polarization piece
It sets.
In order to solve the above-mentioned technical problems, the present invention provides a kind of infrared polarization imaging measurements based on rotatory polarization piece
Device, including infrared optical lens, it is multi-direction be polarized unit, infrared focal plane detector and control unit,
The infrared optical lens are adjusted acquisition detection light beam to the polarised light of target scene；It is multi-direction to be polarized unit
Direction is polarized to detection light beam by changing, difference is obtained and is polarized direction light beam；Infrared focal plane detector is to difference
It is polarized the imaging of direction light beam, difference is obtained and is polarized the infrared intensity image of direction light beam and exports；
Described control unit for control it is multi-direction be polarized sequence of unit transformation be polarized direction, make infrared focal plane detector
The infrared intensity figure that the difference for being polarized direction corresponding to sequential transformations is polarized direction light beam can be obtained with pre-determined frame rate
Picture.
In the infrared polarization image measuring device according to the present invention based on rotatory polarization piece, described multi-direction
Inclined unit includes polarizing film wheel, servo motor, motor gear axis, polarizing film gear shaft, multiple polarizing films and encoder,
The servo motor passes sequentially through motor gear axis under the control of the control unit and the driving of polarizing film gear shaft is inclined
The shaft rotation of vibration piece wheel, so that polarizing film wheel be driven to rotate；Multiple polarizing films are distributed uniformly and circumferentially in polarizing film wheel
On；Encoder is connect by yielding coupling with the shaft of polarizing film wheel.
In the infrared polarization image measuring device according to the present invention based on rotatory polarization piece, the multiple polarization
Piece includes three polarizing films, and mounting means of three polarizing films on polarizing film wheel includes:
0 ° of direction of grating of three polarizing films and the angle of georeferencing reference axis are respectively 0 °, 60 ° and 120 °.
In the infrared polarization image measuring device according to the present invention based on rotatory polarization piece, the polarizing film packet
Metal wire grating type polarizing film is included, effective wavelength range is 3~12 μm.
In the infrared polarization image measuring device according to the present invention based on rotatory polarization piece, the servo motor
The working speed of polarizing film wheel is set to be at least 50r/s.
In the infrared polarization image measuring device according to the present invention based on rotatory polarization piece, the polarizing film wheel
For tray type structure, the installing port of polarizing film is set on polarizing film wheel.
In the infrared polarization image measuring device according to the present invention based on rotatory polarization piece, the measuring device
It further include image processing unit,
Image processing unit is used to handle the infrared intensity image, makes the every rotation of polarizing film wheel one week, infrared
The infrared intensity image corresponding conversion that the three width differences that focus planar detector obtains are polarized direction light beam is target scene
Infrared polarization image.
In the infrared polarization image measuring device according to the present invention based on rotatory polarization piece, described control unit
For controlling servo motor operation, switch polarizing film with preset frequency realization sequence.
In the infrared polarization image measuring device according to the present invention based on rotatory polarization piece, the measuring device
It further include cabinet, cabinet is infrared optical lens, multi-direction is polarized unit and infrared focal plane detector provides installation position；It is described
Camera Link interface for exporting infrared intensity image is set on cabinet.
Implement the infrared polarization image measuring device of the invention based on rotatory polarization piece, has the advantages that this
Invention improves on the basis of existing time sharing mode Infrared Polarization Imaging Technology, by the multi-direction unit that is polarized to target scene
Polarization information carry out analyzing filtering, while enabling multi-direction to be polarized the periodic sequential transformations of unit not by control unit
It is same to be polarized direction, and its transformation rate is made to meet scheduled frame rate requirement.The present invention is by being polarized direction transformation speed
Control, achievees the effect that approximate simultaneous type Infrared Polarization Imaging Technology, thus having time sharing mode Infrared Polarization Imaging Technology
Advantage while, can be used for move or variation targets scene measurement, be infrared polarization imaging measurement field one significant
Breakthrough.
Measurement of the invention has real-time, and energy attenuation is small, and has High Extinction Ratio, may be implemented to moving target
The fast accurate of scene infrared polarization image measures.
Detailed description of the invention
Fig. 1 is the exemplary block diagram of the infrared polarization image measuring device according to the present invention based on rotatory polarization piece；
Fig. 2 is the exemplary block diagram of the infrared polarization image measuring device according to the present invention based on rotatory polarization piece；
Fig. 3 is the multi-direction exemplary block diagram for being polarized unit according to the present invention；
Fig. 4 is the illustrative diagram of polarizing film installation site according to the present invention；
Fig. 5 is the outer dimension exemplary diagram of polarizing film wheel according to the present invention and polarizing film；
Fig. 6 is the exemplary block diagram of cabinet according to the present invention；
Fig. 7 is cabinet rear panel layout example figure according to the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Specific embodiment one, the first aspect of the present invention, provide a kind of infrared polarization based on rotatory polarization piece at
As measuring device, referring to figs. 1 and 2, including infrared optical lens 100, multi-direction it is polarized unit 200, infrared focus plane
Detector 300 and control unit 400, the infrared optical lens 100, which are adjusted the polarised light of target scene, to be detected
Light beam；The multi-direction direction that is polarized for being polarized unit 200 by changing to detection light beam, acquisition difference are polarized direction light beam；
300 pairs of differences of infrared focal plane detector are polarized the imaging of direction light beam, obtain difference and are polarized the infrared of direction light beam
Intensity image simultaneously exports；
Described control unit 400 is polarized direction for controlling multi-direction 200 sequential transformations of unit that are polarized, and makes infrared focus plane
Detector 300 can obtain the difference for being polarized direction corresponding to sequential transformations with pre-determined frame rate and be polarized the red of direction light beam
Outer intensity image.
Present embodiment has built the light channel structure of infrared polarization imaging, the entrance pupil of the infrared focal plane detector 300
Place is polarized the infrared intensity image that direction obtains target scene by the corresponding multi-direction difference for being polarized unit 200.Multi-direction
Inclined unit 200 makes to correspond to the light beam at 300 entrance pupil of infrared focal plane detector and plays folk prescription under the control of control unit 400
To changing, when the rate for being polarized direction change is sufficiently high, within each transformation period, infrared focal plane detector
300 several infrared intensity images obtained can consider the mesh for being equivalent to and obtaining in the imaging of simultaneous type infrared polarization in synchronization
Mark infrared intensity image.Several infrared intensity images obtained for a transformation period can be handled subsequent, be calculated
Obtain the infrared polarization image of a width target scene.
The infrared optical lens 100 are used to assemble the polarised light of target scene, so that in infrared focal plane detector 300
On can obtain clearly image.
As an example, 640 × 512 medium-wave infrared focus planar detectors can be selected in infrared focal plane detector 300.
As an example, the multi-direction unit 200 that is polarized includes polarizing film wheel 210, servo electricity in conjunction with shown in Fig. 2 and Fig. 3
Machine 220, motor gear axis 230, polarizing film gear shaft 240, multiple polarizing films 250 and encoder 260,
The servo motor 220 passes sequentially through motor gear axis 230 and polarization plate gear under the control of control unit 400
Axis 240 drives the shaft rotation of polarizing film wheel 210, so that polarizing film wheel 210 be driven to rotate；Multiple polarizing films 250 are circumferentially square
To being evenly distributed on polarizing film wheel 210；Encoder 260 is connect by yielding coupling with the shaft of polarizing film wheel 210.
In present embodiment, servo motor 220 is for driving polarizing film wheel 210 to rotate, it is contemplated that 210 size of polarizing film wheel
Larger, rotator inertia is larger, therefore connects motor shaft and polarizing film wheel shaft by gear train, to increase driving moment.It is described inclined
The piece 250 that shakes, which is used to radiate target and background, carries out analyzing filtering；Encoder 260 is used for the rotation of real-time measurement polarizing film wheel 210
Gyration, to guarantee 210 accurate positioning of polarizing film wheel.
As shown in Figure 2, the light beam by the adjustment of infrared optical lens 100 and multi-direction one be polarized on unit 200 are inclined
The position of vibration piece 250 is corresponding, corresponds to the exit positions of polarizing film 250 at the entrance pupil of infrared focal plane detector 300 again.Polarization
The channel of polarization being arranged on piece wheel 210 is chosen by the control of servo motor 220, when polarizing film wheel 210 is in servo motor
220 when being rotated by, multiple polarizing films 250 periodically will correspond alternately to infrared optical lens 100, to realize
Automatic switchover of multiple polarizing films 250 under Electronic control mode, and infrared focal plane detector 300 is made to obtain different folk prescriptions
To the infrared intensity image of light beam.Wherein the number of polarizing film 250 can be selected according to actual needs.According to
Polarizing film wheel 210 is calculated in a rotation period corresponding to the infrared intensity image of different polarization piece 250, can be obtained
The infrared polarization image of one width target scene.The radiation of target scene can be obtained by the infrared polarization image of the target scene
Strength information can also obtain the polarization parameters such as degree of polarization, the angle of polarization.
As an example, the multiple polarizing film 250 includes three polarizing films 250, three polarizing films 250 are in polarizing film wheel
Mounting means on 210 includes:
0 ° of direction of grating of three polarizing films 250 and the angle of georeferencing reference axis are respectively 0 °, 60 ° and 120 °.
In present embodiment, three polarizing films are installed in selection on polarizing film wheel 210, that is, in polarizing film wheel 210
In one rotation period, three width infrared intensity images can be obtained, are finally calculated according to three width infrared intensity images, are obtained
The infrared polarization image of one width target scene.
Effective clear aperature of the polarizing film 250 needs total picture dot size greater than infrared focal plane detector 300.
As an example, the polarizing film 250 includes metal wire grating type polarizing film, effective wavelength range is 3~12 μm.
The metal wire grating type polarizing film includes the identical CaF of three specifications2Metal wire grating type polarizing film, transmitance are big
In 80%, extinction ratio 300:1.As shown in connection with fig. 4, three pieces polarize 0 ° of direction 241 of sheet gration for installation on polarizing film wheel 210
Angle with corresponding reference coordinate axis 242 is respectively 0 °, 60 ° and 120 °.
Further, the servo motor 220 makes the working speed of polarizing film wheel 210 be at least 50r/s.
In present embodiment, the restriction to 210 working speed of polarizing film wheel is to meet infrared focal plane detector 300
The requirement of pre-determined frame rate is imaged.Since the disclosure will achieve the effect that approximate simultaneous type infrared polarization technology, only work as
The pre-determined frame rate of imaging reaches certain requirement, can just make the infrared intensity figure obtained in 210 1 rotation periods of polarizing film wheel
Difference as that can ignore the time, synthesizes the infrared polarization image of a width target scene.When the working speed of polarizing film wheel 210 is
When 50r/s, the pre-determined frame rate of infrared focal plane detector 300 can reach 150 frames/second, meet the red of most of moving targets
Outer Polarization Detection demand.
Specifically: after each polarizing film on polarizing film wheel 210 is rotated in place, infrared focal plane detector starts to acquire red
Outer image, frame frequency 150fps, after the completion of present image acquisition, polarizing film rotates to next measurement position, and so on.
As an example, as shown in connection with fig. 5, the polarizing film wheel 210 is tray type structure, outer diameter can choose as needed
For 90mm, the installing port of polarizing film 250 is set on polarizing film wheel 210.
In present embodiment, polarizing film wheel 210 is provided in 300 front end of infrared focal plane detector, and installing port is to mention
It is polarized direction for difference, including 0 °, 60 °, 120 ° of polarizing film installation site, 220 high speed rotation of servo motor drives polarizing film
Wheel 210 rotation, realize to target scene the radiance image in different polarization direction measurement.
Further, as shown in connection with fig. 5, the diameter of the polarizing film 250, which can according to need, is selected as 28mm, clear aperature
Corresponding selection is 25.4mm.
In present embodiment, the outer diameter of polarizing film wheel 210 can be 90mm, provide three differences and be polarized direction, and diameter
It is all the installation site of the polarizing film of 28mm.Clear aperature is 25.4mm, is greater than total picture dot of infrared focal plane detector 300
Size, and optical path not will cause and block, as shown in Figure 5.
Further, as shown in connection with fig. 1, the measuring device further includes image processing unit 500,
Image processing unit 500 makes the every rotation one of polarizing film wheel 210 for handling the infrared intensity image
Week, the infrared intensity image corresponding conversion that the three width differences that infrared focal plane detector 300 obtains are polarized direction light beam are
The infrared polarization image of target scene.
Described image processing unit 500 can calculate target scene using the polarization calculation formula of three polarization directions
Infrared polarization information.When the working speed of polarizing film wheel 210 is at least 50r/s, image processing unit 500 exports infrared partially
The polarization frame frequency minimum of vibration image is up to 50 polarization frame/seconds.
As an example, the polarization calculation formula that described image processing unit 500 uses includes:
In formula, I'(0 °) it is the infrared intensity image that infrared focal plane detector 300 obtains when being polarized direction corresponding to 0 °
Radiance value, I'(60 °) be the infrared intensity figure that infrared focal plane detector 300 obtains when being polarized direction corresponding to 60 °
The radiance value of picture, I'(120 °) it is when being polarized direction corresponding to 120 °, infrared focal plane detector 300 obtains infrared strong
Spend the radiance value of image；I is the polarised light overall strength of target scene, and Q is the horizontal polarization luminous intensity of target scene and hangs down
The difference of straight intensity of polarization light, U be and reference coordinate axis in the intensity of polarization light of ± 45 ° of angles difference.
Utilize the Stokes vector S:S=[I, Q, U] of the available characterization target scene polarization state of above-mentioned formulaT, root
According to the relationship between Stokes vector and degree of polarization DoP, angle of polarization AoP, the infrared polarization degree figure of target scene can be obtained
Picture and infrared polarization angle image:
In present embodiment, polarization can reach by the infrared polarization amount of images of 500 final output of image processing unit
The minimum 50fps of frame frequency can satisfy the infrared polarization detection demand of most of moving targets.
The present invention improves the image taking speed of time sharing mode infrared polarization imaging；Its speed for obtaining infrared polarization image is at least
It is 5 times of the prior art；And have apparatus structure succinct, the advantage of portable and fast and easy adjustment.
Further, described control unit 400 makes polarizing film 250 with preset frequency reality for controlling the operation of servo motor 220
Now sequence switches.
The predetermined switching frequency of the polarizing film 250 determines the pre-determined frame rate of infrared focal plane detector 300, according to
After actual demand determines pre-determined frame rate, servo motor 220 can be controlled by control unit 400 and run, make polarizing film wheel 210
Revolving speed meet the predetermined switching frequency of polarizing film 250.
The disclosure has the infrared imaging processing capacity of high frame frequency, and the selection for being polarized polarization direction can be made to adopt with image
Collection synchronizes, and improves the sample rate of existing time sharing mode infrared polarization imaging system, and it is infrared partially to solve moving target scene
The rapid survey problem of vibration imaging.
Further, in conjunction with shown in Fig. 6 and Fig. 7, the measuring device further includes cabinet, cabinet be infrared optical lens 100,
It is multi-direction that unit 200 and the offer of infrared focal plane detector 300 installation position are provided；Setting is infrared strong for exporting on the cabinet
Spend the Camera Link interface of image.
Shown in Fig. 6, the cabinet can provide installation basis on location and optical system institute for the various components of measuring device
The operation window needed, and important protective action can be played simultaneously.It can be visited on cabinet front panel for infrared focus plane
The work requirements for surveying device 300 design window all the way, and for the location and installation of infrared optical lens 100, the window can be designed
It is independent module, to be easily installed replacement, to meet the use demand of actual environment under different condition.It can also be in cabinet
Four trunnions are set on bottom plate, are connect for realizing with the installation of other platforms.
As shown in connection with fig. 7, power switch and power supply instruction can be set on cabinet rear panel, for realizing logical to power supply
The auxiliary of disconnected control and system current working status is shown, such as power switch can be power switch button, power supply instruction
It can be power supply indicator, such as power indication LED.Further, it is also possible to be arranged on cabinet corresponding interface connector with
It draws communication and power supply interface, the interface may include:
One for exporting the Camera Link interface of infrared picture data；One is used for transmission motor control and state
The aviation plug interface of feedback signal；One 220V AC power interface for equipment power supply.
In conclusion the present invention can be used in the real-time measurement of target scene infrared polarization information, stability is good, controllably
Property is strong, can be used as Space Object Detection, maritime search and rescue, the powerful of the application fields such as target detection and identification.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (9)
1. a kind of infrared polarization image measuring device based on rotatory polarization piece, which is characterized in that including infrared optical lens
It is (100), multi-direction to be polarized unit (200), infrared focal plane detector (300) and control unit (400),
The infrared optical lens (100) are adjusted acquisition detection light beam to the polarised light of target scene；It is multi-direction to be polarized list
First (200) are polarized direction to detection light beam by changing, and obtain difference and are polarized direction light beam；Infrared focal plane detector
(300) light beam imaging in direction is polarized to difference, obtains difference and is polarized the infrared intensity image of direction light beam and exports；
Described control unit (400) is polarized direction for controlling multi-direction unit (200) sequential transformations that are polarized, and makes infrared focus plane
Detector (300) can obtain the difference for being polarized direction corresponding to sequential transformations with pre-determined frame rate and be polarized direction light beam
Infrared intensity image.
2. the infrared polarization image measuring device according to claim 1 based on rotatory polarization piece, which is characterized in that described
The multi-direction unit (200) that is polarized includes polarizing film wheel (210), servo motor (220), motor gear axis (230), polarization plate gear
Axis (240), multiple polarizing films (250) and encoder (260),
The servo motor (220) passes sequentially through motor gear axis (230) and polarizing film tooth under the control of control unit (400)
Wheel shaft (240) drives the shaft rotation of polarizing film wheel (210), so that polarizing film wheel (210) be driven to rotate；Multiple polarizing films
(250) it is distributed uniformly and circumferentially on polarizing film wheel (210)；Encoder (260) passes through yielding coupling and polarizing film wheel
(210) shaft connection.
3. the infrared polarization image measuring device according to claim 2 based on rotatory polarization piece, which is characterized in that described
Multiple polarizing films (250) include three polarizing films (250), mounting means of three polarizing films (250) on polarizing film wheel (210)
Include:
0 ° of direction of grating of three polarizing films (250) and the angle of georeferencing reference axis are respectively 0 °, 60 ° and 120 °.
4. the infrared polarization image measuring device according to claim 2 or 3 based on rotatory polarization piece, which is characterized in that
The polarizing film (250) includes metal wire grating type polarizing film, and effective wavelength range is 3~12 μm.
5. the infrared polarization image measuring device according to any one of claim 2 to 4 based on rotatory polarization piece, special
Sign is that the servo motor (220) makes the working speed of polarizing film wheel (210) be at least 50r/s.
6. special based on the infrared polarization image measuring device of rotatory polarization piece according to any one of claim 2 to 5
Sign is that the polarizing film wheel (210) is tray type structure, and the installing port of polarizing film (250) is arranged on polarizing film wheel (210).
7. special based on the infrared polarization image measuring device of rotatory polarization piece according to any one of claim 2 to 6
Sign is that the measuring device further includes image processing unit (500),
Image processing unit (500) makes the every rotation one of polarizing film wheel (210) for handling the infrared intensity image
Week, the three width differences that infrared focal plane detector (300) obtains are polarized the infrared intensity image corresponding conversion of direction light beam
For the infrared polarization image of target scene.
8. special based on the infrared polarization image measuring device of rotatory polarization piece according to any one of claim 2 to 7
Sign is that described control unit (400) realizes polarizing film (250) with preset frequency for controlling servo motor (220) operation
Sequence switches.
9. the infrared polarization image measuring device according to any one of claim 1 to 8 based on rotatory polarization piece, special
Sign is, the measuring device further includes cabinet, and cabinet is infrared optical lens (100), the multi-direction unit (200) and red of being polarized
Outer focus planar detector (300) provides installation position；Camera Link for exporting infrared intensity image is set on the cabinet
Interface.
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Cited By (8)
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| CN110044483A (en) * | 2019-04-28 | 2019-07-23 | 南昌大学 | A kind of single photon compression polarization imaging device and method |
| CN110440926A (en) * | 2019-08-13 | 2019-11-12 | 北京环境特性研究所 | Time sharing mode infrared polarization imaging device and method for dynamic target measurement |
| CN111667519A (en) * | 2020-06-05 | 2020-09-15 | 北京环境特性研究所 | Registration method and device for polarized images with different fields of view |
| CN113055566A (en) * | 2021-02-23 | 2021-06-29 | 中国科学院合肥物质科学研究院 | Rapid polarization imaging device and method based on time-sharing method |
| CN113533215A (en) * | 2021-08-09 | 2021-10-22 | 哈尔滨工业大学（深圳） | Water drop detection system and method for optical mirror surface and water drop erasing system |
| CN114216562A (en) * | 2021-12-16 | 2022-03-22 | 中国科学院光电技术研究所 | Intensity-time integration type rapid polarization imaging method and device |
| CN114935579A (en) * | 2022-05-06 | 2022-08-23 | 北京环境特性研究所 | Strong light background suppression measuring device and method based on two-stage multipath polarization modulation |
| CN115201117A (en) * | 2022-07-11 | 2022-10-18 | 北京环境特性研究所 | Device and method for measuring infrared polarization characteristics of ultra-high temperature material |
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| CN113533215B (en) * | 2021-08-09 | 2023-10-03 | 哈尔滨工业大学（深圳） | Water droplet detection system, method and water droplet erasure system for optical mirror |
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| CN115201117A (en) * | 2022-07-11 | 2022-10-18 | 北京环境特性研究所 | Device and method for measuring infrared polarization characteristics of ultra-high temperature material |
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