CN205028554U - Multi -functional polarization imaging experiment teaching aid - Google Patents
Multi -functional polarization imaging experiment teaching aid Download PDFInfo
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- CN205028554U CN205028554U CN201520780964.2U CN201520780964U CN205028554U CN 205028554 U CN205028554 U CN 205028554U CN 201520780964 U CN201520780964 U CN 201520780964U CN 205028554 U CN205028554 U CN 205028554U
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Abstract
The utility model discloses a multi -functional polarization imaging experiment teaching aid, include light source module, carry thing revolving stage, polarization formation of image module, guide rail and put the thing platform, it is rotatable to carry thing revolving stage self, and two guide rails rotate with year thing revolving stage respectively to be connected, can rotate around carrying the thing revolving stage, and the target that awaits measuring setting is on year thing revolving stage, all be equipped with one on the every guide rail and put the thing platform, put the thing platform and can follow the guide rail slip, light source module sets up and puts the thing bench arbitrary one, and polarization formation of image module setting puts the thing bench at another, light source module includes light source, first inclined to one side vibration -damping sheet and the 1 14 wave plate that the common optical axis set gradually, the optical axis is rather than the the central axis coincidence of place guide rail. The utility model discloses a basic principle and the main formation of image mode of polarization formation of image, through the experiment make the student distinguish simultaneously with the polarization formation of image mode of timesharing, understand with the research line partially, the circle partially and the method of extracting of full polarization information such as inclined to one side.
Description
Technical field
The utility model belongs to optics teaching experimental apparatus technical field, is specifically related to a kind of multi-functional polarization imaging experiment teaching aid.
Background technology
Describe electromagnetic radiation characteristic and not only have amplitude, wavelength, transmission of phase direction, also have polarization state etc.Spectral polarization imaging technology is the combination of spectral imaging technology and polarization imaging technology, spatial information, spectral information and polarization information are melted into a whole, four-dimensional radiation detection (intensity, spectrum, two-dimensional space) is expanded to 7 degree of freedom (intensity, spectrum, two-dimensional space, degree of polarization, polarization angle, polarization ellipticity), make the information obtaining target and scene abundanter, more be conducive to target identification, especially for the target identifying those and background " homochromy with composing ", the contrast of object and background can effectively be improved.
Stokes vector representation intactly can describe the polarization state of light wave, and its four parameters can be expressed as the time average of light intensity, directly can be detected device detection.At present, polarized light teaching experimental is the rising partially of polarized light, analyzing experiment mainly, the experiments such as checking Malus law, Brewster's law and demonstration polarized light optically-active characteristic, polarized light interference, stress birefrin.China Patent No. 201120570176.2 proposes a kind of polarized light, optically-active experimental provision, can carry out polarized light and optically-active experiment, but function singleness; Chinese patent 201320333238.7 proposes a kind of multi-functional polarized light comprehensive demonstration instrument, can achieve the demonstration of multiple properties of polarized light, but level of integrated system is high on a kind of equipment, is unfavorable for that student starts combination experiment.Utilize the polarization characteristic of light wave, the full polarization information carrying out target obtains and Polarization Detection etc., and be one of important application of current polarization optics, the introducing of these contents is a kind of beneficial complement to polarized light experimental teaching.
Summary of the invention
The purpose of this utility model is to provide a kind of multi-functional polarization imaging experiment teaching aid, enables student control light source module both wave plates and polaroid, realizes the multi-polarization states such as natural light, polarized light or partial poolarized light and exports; Control loading turntable and guide rail manually can change the angle of incident angle, search angle and loading rotating disk, realize multiangular measurement; Control polarization imaging module manual configuration and rotatory polarization device, realize simultaneously and the linear polarization of timesharing, polarization Multi-band Polarization imaging entirely.
The technical solution realizing the object of the invention is: a kind of multi-functional polarization imaging experiment teaching aid, comprises light source module, loading turntable, polarization imaging module, guide rail and articles holding table; Loading turntable self is rotatable, and two guide rails are rotationally connected with loading turntable respectively, and can rotate around loading turntable, target to be measured is arranged on loading turntable; Every root guide rail is equipped with an articles holding table, articles holding table can along slide; Light source module is arranged on any one articles holding table, and polarization imaging module installation is on another articles holding table; Light source module comprises light source, the first polaroid and the first quarter wave plate that common optical axis sets gradually, the central axes of described optical axis and its place guide rail.
Four CCD polarization imaging unit or timesharing list CCD polarization imaging unit while that described polarization imaging module being.
When polarization imaging module is while during four CCD polarization imaging unit, also comprise registration printing opacity framework, registration printing opacity framework comprises two sizes different square frame, triangle frame and circle frame, the square frame that size is little is arranged in the large square frame of size, and be connected by connecting rod with it, triangle frame is arranged in the little square frame of size, wherein has and the drift angle of the square frame only having drift angle little with size overlaps, circle frame and triangle frame inscribe; The four width images that registration printing opacity framework is used for CCD is formed mate and calibrate.
The present invention compared with prior art, its remarkable advantage is: (1) embodies the ultimate principle of polarization imaging and main imaging mode, with the polarization imaging mode of timesharing while of making student understand by experiment, grasp the extracting method of the polarization information such as degree of polarization, polarization angle; (2) the multi-angle combination of the polarizers such as filter plate, phase delay chip and polaroid can be carried out, to problems such as polarization state change, the full polarization parameter measurements of multiband in Optical system, there is important using value; (3) manually configuration and rotatory polarization device realize simultaneously and the linear polarization of timesharing, polarization Multi-band Polarization imaging entirely.This experiment teaching aid structure is simple, and systemic-function is enriched, and extendability is strong, and can improve the manipulative ability of student, be a kind of beneficial complement to polarized light experimental teaching.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of multi-functional polarization imaging experiment teaching aid of the present utility model.
Polarization imaging modular structure schematic diagram while Fig. 2 is multi-functional polarization imaging experiment teaching aid of the present utility model.
Fig. 3 is the timesharing polarization imaging modular structure schematic diagram of multi-functional polarization imaging experiment teaching aid of the present utility model.
Fig. 4 is the registration unit structural representation of the polarization imaging module of multi-functional polarization imaging experiment teaching aid of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Composition graphs 1, a kind of multi-functional polarization imaging experiment teaching aid, comprises light source module 1, loading turntable 2, polarization imaging module 3, guide rail 4 and articles holding table 5; Loading turntable 2 self is rotatable, and two guide rails 4 are rotationally connected with loading turntable 2 respectively, can rotate around loading turntable 2, and target to be measured is arranged on loading turntable 2; Every root guide rail is equipped with an articles holding table 5, articles holding table 5 can slide along guide rail 4; Light source module 1 is arranged on any one articles holding table 5, and polarization imaging module 3 is arranged on another articles holding table 5; Light source module 1 comprises light source 101, first polaroid 102 and the first quarter wave plate 103 that common optical axis sets gradually, the central axes of described optical axis and its place guide rail 4.
Four CCD polarization imaging unit or timesharing list CCD polarization imaging unit while that described polarization imaging module 3 being.
Composition graphs 4, when polarization imaging module 3 is while during four CCD polarization imaging unit, also comprise registration printing opacity framework 305, registration printing opacity framework 305 comprises two sizes different square frame, triangle frame and circle frame, the square frame that size is little is arranged in the large square frame of size, and is connected by connecting rod with it, and triangle frame is arranged in the little square frame of size, wherein to have and the drift angle of the square frame only having drift angle little with size overlaps, circle frame and triangle frame inscribe; Registration printing opacity framework 305 is for calibrating CCD301.
Embodiment 1
Four CCD polarization imaging unit while that described polarization imaging module 3 being, implement full polarization imaging simultaneously.
A kind of multi-functional polarization imaging experiment teaching aid, comprises light source module 1, loading turntable 2, polarization imaging module 3, guide rail 4 and articles holding table 5; Loading turntable 2 self is rotatable, and two guide rails 4 are rotationally connected with loading turntable 2 respectively, can rotate around loading turntable 2, and target to be measured is arranged on loading turntable 2; Every root guide rail is equipped with an articles holding table 5, articles holding table 5 can slide along guide rail 4; Light source module 1 is arranged on any one articles holding table 5, and polarization imaging module 3 is arranged on another articles holding table 5; Light source module comprises light source 101, first polaroid 102 and the first quarter wave plate 103 that common optical axis sets gradually, the central axes of described optical axis and its place guide rail 4.
Composition graphs 2, polarization imaging module 3 comprises CCD301, second polaroid 302, second quarter wave plate 303, Amici prism group 304, filtering runner 306 and preposition collimation camera lens 307, Amici prism group 304 comprises the first Amici prism 3041, second Amici prism 3042 and the 3rd Amici prism 3043, common optical axis sets gradually preposition collimation camera lens 307, filtering runner 306, first Amici prism 3041, second Amici prism 3042, second quarter wave plate 303, second polaroid 302 and CCD301, above-mentioned parts place optical axis is primary optic axis, the central axes of primary optic axis and its place guide rail 4, second Amici prism 3042 reflected light place light path is provided with the second quarter wave plate 303, second polaroid 302 and CCD301 successively.First Amici prism 3041 reflected light place light path is provided with the 3rd Amici prism 3043, second quarter wave plate 303, second polaroid 302 and CCD301 successively.3rd Amici prism 3043 reflected light place light path is provided with the second quarter wave plate 303, second polaroid 302 and CCD301 successively.
Filtering runner 306 is disk, disc face is along the circumferential direction uniformly distributed 6 circular holes, is provided with filter plate in circular hole.Light beam through described filter plate, transmission from filtering runner 306.
Utilize registration printing opacity framework 305 for calibrating four CCD301, method is as follows: light path is as Fig. 2, the direct irradiation of light source 101 is to registration printing opacity framework 305, four CCD301 were arrived respectively after entering light splitting, adjust four CCD301 to the image space of registration printing opacity framework 305, make four CCD301 imagings can form fit, complete calibration.The while that next step being implemented when full polarization imaging, remove registration printing opacity framework 305.
Light source 101 sends light beam, by the combination of polaroid 102 and the first quarter wave plate 103, export natural light, linearly polarized light, circularly polarized light, elliptically polarized light or partial poolarized light, be irradiated in target to be measured, reflect through target to be measured, carry the light beam of target information to be measured, inject the preposition collimation camera lens 307 of polarization imaging module 3, after collimated light beam, through filtering runner 306 light-emitting window, be incident to the first Amici prism 3041, the first transmitted light and the first reflected light is divided into through the first Amici prism 3041, first transmitted light is incident to the second Amici prism 3042, the second transmitted light and the second reflected light is divided into through the second Amici prism 3042, second transmitted light and the second reflected light are respectively through the second quarter wave plate 303, after second polaroid 302, received by CCD301, first reflected light is incident to the 3rd Amici prism 3043, is divided into the 3rd transmitted light and the 3rd reflected light through the 3rd Amici prism 3043, and the 3rd transmitted light and the 3rd reflected light after the second quarter wave plate 303, second polaroid 302, are received by CCD301 respectively.
Second quarter wave plate 303 of four CCD301 front ends and the polarization direction of the second polaroid 302 respectively meet below four conditions time, obtain four width plot of light intensity pictures: the fast axle of (1) second quarter wave plate 303 is consistent with the second polaroid 302 printing opacity direction, with the intensity map I (0 °, 0 °) of x-axis angle 0 °; The fast axle of (2) second quarter wave plate 3031/4 wave plate is consistent with the second polaroid 302 printing opacity direction, with the intensity map I (90 °, 0 °) of x-axis angle 90 °; The fast axle of (3) second quarter wave plates 303 is consistent with the second polaroid 302 printing opacity direction, with the intensity map I (45 °, 0 °) of x-axis angle 45 °; The fast axle of (4) second quarter wave plates 303 and 45 °, x-axis angular separation, the intensity map I (45 °, 90 °) of the second polaroid 302 polarization direction and x-axis angle 0 °.CCD301 obtains above-mentioned four width images simultaneously, can be calculated full polarization imaging information.
Embodiment 2
Four CCD polarization imaging unit while that described polarization imaging module 3 being, implement isochrone polarization imaging.
A kind of multi-functional polarization imaging experiment teaching aid, comprises light source module 1, loading turntable 2, polarization imaging module 3, guide rail 4 and articles holding table 5; Loading turntable 2 self is rotatable, and two guide rails 4 are rotationally connected with loading turntable 2 respectively, can rotate around loading turntable 2, and target to be measured is arranged on loading turntable 2; Every root guide rail is equipped with an articles holding table 5, articles holding table 5 can slide along guide rail 4; Light source module 1 is arranged on any one articles holding table 5, and polarization imaging module 3 is arranged on another articles holding table 5; Light source module comprises light source 101, first polaroid 102 and the first quarter wave plate 103 that common optical axis sets gradually, the central axes of described optical axis and its place guide rail 4.
Composition graphs 2, polarization imaging module 3 comprises CCD301, the second polaroid 302, Amici prism group 304, filtering runner 306 and preposition collimation camera lens 307, Amici prism group 304 comprises the first Amici prism 3041, second Amici prism 3042 and the 3rd Amici prism 3043, common optical axis sets gradually preposition collimation camera lens 307, filtering runner 306, first Amici prism 3041, second Amici prism 3042, second polaroid 302 and CCD301, above-mentioned parts place optical axis is the central axes of primary optic axis, primary optic axis and its place guide rail 4; Second Amici prism 3042 reflected light place light path is provided with the second polaroid 302 and CCD301 successively.First Amici prism 3041 reflected light place light path is provided with the 3rd Amici prism 3043, second polaroid 302 and CCD301 successively.3rd Amici prism 3043 reflected light place light path is provided with the second polaroid 302 and CCD301 successively.
Filtering runner 306 is disk, disc face is along the circumferential direction uniformly distributed 6 circular holes, is provided with filter plate in circular hole.Light beam through described filter plate, transmission from filtering runner 306.
Utilize registration printing opacity framework 305 for calibrating four CCD301, method is as follows: light path is as Fig. 2, the direct irradiation of light source 101 is to registration printing opacity framework 305, four CCD301 were arrived respectively after entering light splitting, adjust four CCD301 to the image space of registration printing opacity framework 305, make four CCD301 imagings can form fit, complete calibration.Time next step implements isochrone polarization imaging, remove registration printing opacity framework 305.
Light source 101 sends light beam, by the combination of polaroid 102 and the first quarter wave plate 103, export natural light, linearly polarized light, circularly polarized light, elliptically polarized light or partial poolarized light, be irradiated in target to be measured, reflect through target to be measured, carry the light beam of target information to be measured, inject the preposition collimation camera lens 307 of polarization imaging module 3, after collimated light beam, through filtering runner 306 light-emitting window, be incident to the first Amici prism 3041, the first transmitted light and the first reflected light is divided into through the first Amici prism 3041, first transmitted light is incident to the second Amici prism 3042, the second transmitted light and the second reflected light is divided into through the second Amici prism 3042, second transmitted light and the second reflected light warp respectively, after second polaroid 302, received by CCD301, first reflected light is incident to the 3rd Amici prism 3043, is divided into the 3rd transmitted light and the 3rd reflected light through the 3rd Amici prism 3043, and the 3rd transmitted light and the 3rd reflected light after, the second polaroid 302, are received by CCD301 respectively.
The orientation angle of above-mentioned four the second polaroids 302 is respectively 0 °, 45 °, 90 ° and 135 °.Four CCD301 four imagings simultaneously, and calculate linear polarization image-forming information.
Embodiment 3
Described polarization imaging module 3 is timesharing list CCD polarization image-generating unit, implements timesharing full polarization imaging.
A kind of multi-functional polarization imaging experiment teaching aid, comprises light source module 1, loading turntable 2, polarization imaging module 3, guide rail 4 and articles holding table 5; Loading turntable 2 self is rotatable, and two guide rails 4 are rotationally connected with loading turntable 2 respectively, can rotate around loading turntable 2, and target to be measured is arranged on loading turntable 2; Every root guide rail is equipped with an articles holding table 5, articles holding table 5 can slide along guide rail 4; Light source module 1 is arranged on any one articles holding table 5, and polarization imaging module 3 is arranged on another articles holding table 5; Light source module comprises light source 101, first polaroid 102 and the first quarter wave plate 103 that common optical axis sets gradually, the central axes of described optical axis and its place guide rail 4.
Composition graphs 3, described polarization imaging module 3 comprise set gradually along optical axis preposition collimation camera lens 307, filtering runner 306, second quarter wave plate 303, second polaroid 302 and CCD301, the central axes of place optical axis and guide rail 4 residing for it.
Light source 101 sends light beam, by the combination of polaroid 102 and the first quarter wave plate 103, export natural light, linearly polarized light, circularly polarized light, elliptically polarized light or partial poolarized light, be irradiated in target to be measured, reflect through target to be measured, carry the light beam of target information to be measured, inject the preposition collimation camera lens 307 of polarization imaging module 3, after collimated light beam, through filtering runner 306 light-emitting window, be incident to the second quarter wave plate 303, then after the second polaroid 302, received by CCD301.
Second quarter wave plate 303 of four CCD301 front ends and the polarization direction of the second polaroid 302 respectively meet below four conditions time, obtain four width plot of light intensity pictures: the fast axle of (1) second quarter wave plate 303 is consistent with the second polaroid 302 printing opacity direction, with the intensity map I (0 °, 0 °) of x-axis angle 0 °; The fast axle of (2) second quarter wave plate 3031/4 wave plate is consistent with the second polaroid 302 printing opacity direction, with the intensity map I (90 ° of x-axis angle 90 °, 0 °), the fast axle of (3) second quarter wave plates 303 is consistent with the second polaroid 302 printing opacity direction, with the intensity map I (45 °, 0 °) of x-axis angle 45 °; The fast axle of (4) second quarter wave plates 303 and 45 °, x-axis angular separation, the intensity map I (45 °, 90 °) of the second polaroid 302 polarization direction and x-axis angle 0 °; CCD301 timesharing obtains above-mentioned four width images, can be calculated full polarization imaging information.
Embodiment 4
Described polarization imaging module 3 is timesharing list CCD polarization image-generating unit, implements the imaging of timesharing linear polarization.
A kind of multi-functional polarization imaging experiment teaching aid, comprises light source module 1, loading turntable 2, polarization imaging module 3, guide rail 4 and articles holding table 5; Loading turntable 2 self is rotatable, and two guide rails 4 are rotationally connected with loading turntable 2 respectively, can rotate around loading turntable 2, and target to be measured is arranged on loading turntable 2; Every root guide rail is equipped with an articles holding table 5, articles holding table 5 can slide along guide rail 4; Light source module 1 is arranged on any one articles holding table 5, and polarization imaging module 3 is arranged on another articles holding table 5; Light source module comprises light source 101, first polaroid 102 and the first quarter wave plate 103 that common optical axis sets gradually, the central axes of described optical axis and its place guide rail 4.
Composition graphs 3, described polarization imaging module 3 comprise set gradually along optical axis preposition collimation camera lens 307, filtering runner 306, second polaroid 302 and CCD301, the central axes of place optical axis and guide rail 4 residing for it.
Light source 101 sends light beam, by the combination of polaroid 102 and the first quarter wave plate 103, export natural light, linearly polarized light, circularly polarized light, elliptically polarized light or partial poolarized light, be irradiated in target to be measured, reflect through target to be measured, carry the light beam of target information to be measured, inject the preposition collimation camera lens 307 of polarization imaging module 3, after collimated light beam, through filtering runner 306 light-emitting window, after being incident to the second polaroid 302, received by CCD301.
The orientation angle of above-mentioned four the second polaroids 302 is respectively 0 °, 45 °, 90 ° and 135 °.Four CCD301 timesharing, four imagings, and calculate linear polarization image-forming information.
The main devices that the utility model adopts is described below:
(1) quarter wave plate adopts the achromatism quarter wave plate of Thorlabs company, model AQWP10M-600, service band 400-760nm, phase delay accuracy λ/40-λ/120, diameter of phi 22.6mm.
(2) polaroid adopts the laminated film linear polarizer of Thorlabs company, model LPVISE100-A, anti-reflection wave band 400-760nm, extinction ratio: 1000:1, diameter of phi 25.4mm.
(3) filter plate adopts the dielectric coating filter of Thorlabs company, diameter of phi 25.4mm, and centre wavelength and bandwidth are respectively 450 ± 10nm, 500 ± 10nm, 550 ± 10nm, 600 ± 10nm, 650 ± 10nm, 700 ± 10nm be totally 6 filter plates, is placed on filtering runner.
(4) Amici prism adopts the unpolarized beam-dividing cube of Thorlabs company, model BS013, and reflection and transmittance are 50:50, wave band 400-760 nanometer, diameter of phi 25.4mm.
(5) CCD301 selects the LM165 monochromatic CCD camera of UMENER company, resolution 659x494, spectrum respective range 400nm-760nm, adopts USB to carry out data transmission and power supply, portable notebook computer can be supported to transmit and power supply.
Claims (3)
1. a multi-functional polarization imaging experiment teaching aid, is characterized in that: comprise light source module (1), loading turntable (2), polarization imaging module (3), guide rail (4) and articles holding table (5); Loading turntable (2) self is rotatable, and two guide rails (4) are rotationally connected with loading turntable (2) respectively, and can rotate around loading turntable (2), target to be measured is arranged on loading turntable (2); Every root guide rail is equipped with an articles holding table (5), articles holding table (5) can slide along guide rail (4); Light source module (1) is arranged on any one articles holding table (5), and polarization imaging module (3) is arranged on another articles holding table (5); Light source module (1) comprises light source (101), the first polaroid (102) and the first quarter wave plate (103) that common optical axis sets gradually, the central axes of described optical axis and its place guide rail (4).
2. multi-functional polarization imaging experiment teaching aid according to claim 1, is characterized in that: four CCD polarization imaging unit or timesharing list CCD polarization imaging unit while that described polarization imaging module (3) being.
3. multi-functional polarization imaging experiment teaching aid according to claim 1, it is characterized in that: when polarization imaging module (3) is while during four CCD polarization imaging unit, also comprise registration printing opacity framework (305), registration printing opacity framework (305) comprises two sizes different square frame, triangle frame and circle frame, the square frame that size is little is arranged in the large square frame of size, and be connected by connecting rod with it, triangle frame is arranged in the little square frame of size, wherein to have and the drift angle of the square frame only having drift angle little with size overlaps, circle frame and triangle frame inscribe; Registration printing opacity framework (305) is for CCD(301) the four width images that formed mate and calibrate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520780964.2U CN205028554U (en) | 2015-10-09 | 2015-10-09 | Multi -functional polarization imaging experiment teaching aid |
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| CN201520780964.2U CN205028554U (en) | 2015-10-09 | 2015-10-09 | Multi -functional polarization imaging experiment teaching aid |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108230850A (en) * | 2018-01-18 | 2018-06-29 | 刘隐秀 | A kind of optical tester |
| CN108766160A (en) * | 2018-08-02 | 2018-11-06 | 河南师范大学 | A kind of Miniature digital optical interdferometer |
| CN113884466A (en) * | 2021-08-30 | 2022-01-04 | 清华大学深圳国际研究生院 | Surface refractive index imaging sensor based on weak measurement and measurement method thereof |
-
2015
- 2015-10-09 CN CN201520780964.2U patent/CN205028554U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108230850A (en) * | 2018-01-18 | 2018-06-29 | 刘隐秀 | A kind of optical tester |
| CN108766160A (en) * | 2018-08-02 | 2018-11-06 | 河南师范大学 | A kind of Miniature digital optical interdferometer |
| CN108766160B (en) * | 2018-08-02 | 2023-12-19 | 河南师范大学 | Small digital optical interferometer |
| CN113884466A (en) * | 2021-08-30 | 2022-01-04 | 清华大学深圳国际研究生院 | Surface refractive index imaging sensor based on weak measurement and measurement method thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20201009 |