CN204807204U - Analytical equipment takes place for fixed polarization spin - wave plate - Google Patents
Analytical equipment takes place for fixed polarization spin - wave plate Download PDFInfo
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- CN204807204U CN204807204U CN201520468244.2U CN201520468244U CN204807204U CN 204807204 U CN204807204 U CN 204807204U CN 201520468244 U CN201520468244 U CN 201520468244U CN 204807204 U CN204807204 U CN 204807204U
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Abstract
The utility model relates to an analytical equipment takes place for fixed polarization spin - wave plate, by wave plate (1), polaroid (2), detector (3) and motor (4) constitution, polaroid (2) are connected with detector (3) and motor (4) respectively. Wave plate (1) is clockwise spin - wave plate around the optic axis rotation. The rotational angular velocity of wave plate (1) is invariable. Wave plate (1) still is connected with a phase retardation device. Polaroid (1) still is connected with an electric optic modem. The utility model provides an analytical equipment takes place for fixed polarization spin - wave plate simple structure, with low costs, the signal is gathered in the timesharing, has improved detection speed greatly, and phase modulation's time greatly shortens.
Description
Technical field
The utility model relates to the analyzing element of a kind of mechanical rotation modulation, particularly relates to a kind of fixing polarization rotating wave plate generation analytical equipment, belongs to polarizer apparatus field.
Background technology
Electromagnetic Scattering Theory discloses, and polarization is an important information of light.Polarization Detection, as a useful supplement of strength investigation, can extend to 7 degree of freedom quantity of information from three-dimensional, contributes to the accuracy improving target detection and Objects recognition.Traditional images often depends on strength characteristic and the wavelength characteristic of light, and Polarization Detection can find can realize the target identification in complex background by some essential characteristic (material, details etc. as target) of target.Current Polarization Detection has become the important detection means of one in Military Application, for the fields such as target identification, intelligence reconnaissance provide effective information.Simultaneously due to the polarization sensitivity of air and object spectrum radiation, visible and infrared polarization remote sensing progressively becomes the new technical means of ground, aviation and moonscope, is applied in the field such as remote sensing of the earth and astronomical research.
Polarized light modulator approach is widely used in rising partially and Calibrator in active polarization imaging system, but does not have the special element being suitable for inclined Calibrator at present.
Utility model content
In order to overcome the deficiencies in the prior art, resolving the problem of prior art, making up the deficiency of existing existing product in the market.
The utility model provides a kind of fixing polarization rotating wave plate generation analytical equipment, and be made up of wave plate, polaroid, detecting device and motor, polaroid is connected with detecting device and motor respectively.
Preferably, above-mentioned wave plate is the rotating wave plate rotated around optical axis clockwise.
Preferably, the angular velocity of rotation of above-mentioned wave plate is constant.
Preferably, above-mentioned wave plate is also connected with a phase delay device.
Preferably, above-mentioned polaroid is also connected with an electrooptic modulator.
The fixing polarization rotating wave plate generation analytical equipment structure that the utility model provides is simple, cost is low, and acquisition time signal, substantially increases speed of detection, and the time of phase-modulation greatly shortens.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Reference numeral: 1-wave plate; 2-polaroid; 3-detecting device; 4-motor.
Embodiment
Understand for the ease of those of ordinary skill in the art and implement the utility model, below in conjunction with the drawings and the specific embodiments, the utility model being described in further detail.
As shown in Figure 1, the fixing polarization rotating wave plate generation analytical equipment that the utility model provides, typical laser radar remote sensing system is made up of laser instrument, emission coefficient, receiving system and imaging system.Laser radar polarized imaging system then adds polarization generation device and polarization analysis device.Polarization generation device is the device of the complete polarized light producing known, any controllable state.Polarization analysis device measures the polarization state of light wave, can by realizing the measurement of one group of Stokes parameter, and measuring accuracy depends on spatial resolution and the temporal resolution of measurement.
The fixing polarization rotating wave plate generation analytical equipment that the utility model provides, be made up of wave plate 1, polaroid 2, detecting device 3 and motor 4, polaroid 2 is connected with detecting device 3 and motor 4 respectively.Wave plate 1 is the rotating wave plate rotated around optical axis clockwise.The angular velocity of rotation of wave plate 1 is constant.Wave plate 1 is also connected with a phase delay device.Polaroid 1 is also connected with an electrooptic modulator.Motor 4 drives polaroid 2 to rotate around optical axis with Constant Angular Velocity and modulates light wave.
The fixing polarization rotating wave plate generation analytical equipment structure that the utility model provides is simple, cost is low, and acquisition time signal, substantially increases speed of detection, and the time of phase-modulation greatly shortens.
The embodiment of the above is better embodiment of the present utility model; not limit concrete practical range of the present utility model with this; scope of the present utility model comprises and is not limited to this embodiment, and the equivalence change that all shapes according to the utility model, structure are done is all in protection domain of the present utility model.
Claims (5)
1. a fixing polarization rotating wave plate generation analytical equipment, it is characterized in that: described fixing polarization rotating wave plate generation analytical equipment is made up of wave plate (1), polaroid (2), detecting device (3) and motor (4), and polaroid (2) is connected with detecting device (3) and motor (4) respectively.
2. fixing polarization rotating wave plate generation analytical equipment according to claim 1, is characterized in that: described wave plate (1) is the rotating wave plate rotated around optical axis clockwise.
3. fixing polarization rotating wave plate generation analytical equipment according to claim 2, is characterized in that: the angular velocity of rotation of described wave plate (1) is constant.
4. fixing polarization rotating wave plate generation analytical equipment according to claim 1, is characterized in that: described wave plate (1) is also connected with a phase delay device.
5. fixing polarization rotating wave plate generation analytical equipment according to claim 1, is characterized in that: described polaroid (1) is also connected with an electrooptic modulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520468244.2U CN204807204U (en) | 2015-06-25 | 2015-06-25 | Analytical equipment takes place for fixed polarization spin - wave plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520468244.2U CN204807204U (en) | 2015-06-25 | 2015-06-25 | Analytical equipment takes place for fixed polarization spin - wave plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204807204U true CN204807204U (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520468244.2U Expired - Fee Related CN204807204U (en) | 2015-06-25 | 2015-06-25 | Analytical equipment takes place for fixed polarization spin - wave plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204807204U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272284A (en) * | 2020-03-11 | 2020-06-12 | 西安应用光学研究所 | Large-caliber laser polarization characteristic measuring instrument |
-
2015
- 2015-06-25 CN CN201520468244.2U patent/CN204807204U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272284A (en) * | 2020-03-11 | 2020-06-12 | 西安应用光学研究所 | Large-caliber laser polarization characteristic measuring instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20160625 |