CN204807203U - Polarizer based on liquid crystal is harmonious - Google Patents
Polarizer based on liquid crystal is harmonious Download PDFInfo
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- CN204807203U CN204807203U CN201520388492.6U CN201520388492U CN204807203U CN 204807203 U CN204807203 U CN 204807203U CN 201520388492 U CN201520388492 U CN 201520388492U CN 204807203 U CN204807203 U CN 204807203U
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- liquid crystal
- lens
- polarizer
- light source
- field stop
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Abstract
The utility model relates to a polarizer based on liquid crystal is harmonious, it is main including light source (1), field stop (4), first lens (5), aperture stop (6), second lens (7), first liquid crystal (9), second liquid crystal (10), third lens (11), third liquid crystal (12), fourth liquid crystal (13), light filter (15) and camera (16), direction according to the laser light path sets gradually light source (1), field stop (4), first lens (5), aperture stop (6), second lens (7), first liquid crystal (9), second liquid crystal (10), third lens (11), third liquid crystal (12), fourth liquid crystal (13), light filter (15) and camera (16). The utility model provides an examining of polarizer based on liquid crystal is harmonious does not have rotatable parts and modulator in the inclined to one side device, and mechanical modulation system polarizer for traditional can be applicable to high -speed measuring environment, measures the high -speed target better.
Description
Technical field
The utility model relates to a kind of polarization imaging technology for atmospheric scattering, particularly relates to a kind of polarizer tuning based on liquid crystal, belongs to polarization imaging 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.
Conventional polarization imaging adopts passive working method, good concealment, but imaging effect and operating distance all limit by extraneous factors such as meteorological conditions.
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 polarizer tuning based on liquid crystal, mainly comprise light source, field stop, the first lens, aperture diaphragm, the second lens, the first liquid crystal, the second liquid crystal, the 3rd lens, the 3rd liquid crystal, the 4th liquid crystal, optical filter and camera, set gradually light source, field stop, the first lens, aperture diaphragm, the second lens, the first liquid crystal, the second liquid crystal, the 3rd lens, the 3rd liquid crystal, the 4th liquid crystal, optical filter and camera according to the direction of laser optical path.
Preferably, spotlight and fan diffuser is provided with between above-mentioned light source and field stop.
Preferably, the first polaroid is provided with between above-mentioned second lens and the first liquid crystal.
Preferably, along optical path direction, on rear side of described 4th liquid crystal, be provided with the second polaroid.
Preferably, above-mentioned light source is white light optical fiber source.
Preferably, the laser that above-mentioned light source sends arrives camera through the 3rd liquid crystal, the 4th liquid crystal, optical filter successively successively after field stop, the first lens, aperture diaphragm, the second lens, the first liquid crystal, the second liquid crystal, the 3rd lens after scene objects reflection.
There is no rotatable parts and modulator in the Calibrator of the polarizer tuning based on liquid crystal that the utility model provides, relative to traditional mechanically modulated polarizer, the environment measured at a high speed can be applicable to, better high-speed target be measured.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Reference numeral: 1-light source; 2-spotlight; 3-fan diffuser; 4-field stop; 5-first lens; 6-aperture diaphragm; 7-second lens; 8-first polaroid; 9-first liquid crystal; 10-second liquid crystal; 11-the 3rd lens; 12-the 3rd liquid crystal; 13-the 4th liquid crystal; 14-second polaroid; 15-optical filter; 16-camera; 17-scene objects.
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 polarizer tuning based on liquid crystal that the utility model provides, mainly comprise light source 1, field stop 4, first lens 5, aperture diaphragm 6, second lens 7, first liquid crystal 9, second liquid crystal 10, the 3rd lens 11, the 3rd liquid crystal 12, the 4th liquid crystal 13, optical filter 15 and camera 16, set gradually light source 1, field stop 4, first lens 5, aperture diaphragm 6, second lens 7, first liquid crystal 9, second liquid crystal 10, the 3rd lens 11, the 3rd liquid crystal 12, the 4th liquid crystal 13, optical filter 15 and camera 16 according to the direction of laser optical path.
Wherein, spotlight 2 and fan diffuser 3 is provided with between light source 1 and field stop 4.The first polaroid 8 is provided with between second lens 7 and the first liquid crystal 9.Along optical path direction, on rear side of the 4th liquid crystal 13, be provided with the second polaroid 14.Light source 1 is white light optical fiber source.The laser that light source 1 sends arrives camera 16 through the 3rd liquid crystal 12, the 4th liquid crystal 13, optical filter 15 successively successively after field stop 4, first lens 5, aperture diaphragm 6, second lens 7, first liquid crystal 9, second liquid crystal 10, the 3rd lens 11 after scene objects 17 reflects.
There is no rotatable parts and modulator in the Calibrator of the polarizer tuning based on liquid crystal that the utility model provides, relative to traditional mechanically modulated polarizer, the environment measured at a high speed can be applicable to, better high-speed target be measured.
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 (6)
1. one kind based on the tuning polarizer of liquid crystal, it is characterized in that: the described polarizer tuning based on liquid crystal mainly comprises light source (1), field stop (4), first lens (5), aperture diaphragm (6), second lens (7), first liquid crystal (9), second liquid crystal (10), 3rd lens (11), 3rd liquid crystal (12), 4th liquid crystal (13), optical filter (15) and camera (16), light source (1) is set gradually according to the direction of laser optical path, field stop (4), first lens (5), aperture diaphragm (6), second lens (7), first liquid crystal (9), second liquid crystal (10), 3rd lens (11), 3rd liquid crystal (12), 4th liquid crystal (13), optical filter (15) and camera (16).
2. the polarizer tuning based on liquid crystal according to claim 1, is characterized in that: be provided with spotlight (2) and fan diffuser (3) between described light source (1) and field stop (4).
3. the polarizer tuning based on liquid crystal according to claim 1, is characterized in that: be provided with the first polaroid (8) between described second lens (7) and the first liquid crystal (9).
4. the polarizer tuning based on liquid crystal according to claim 1, is characterized in that: along optical path direction, and described 4th liquid crystal (13) rear side is provided with the second polaroid (14).
5. the polarizer tuning based on liquid crystal according to claim 1, is characterized in that: described light source (1) is white light optical fiber source.
6. according to the polarizer tuning based on liquid crystal one of claim 1-5 Suo Shu, it is characterized in that: the laser that described light source (1) sends arrives camera (16) through the 3rd liquid crystal (12), the 4th liquid crystal (13), optical filter (15) successively successively after field stop (4), the first lens (5), aperture diaphragm (6), the second lens (7), the first liquid crystal (9), the second liquid crystal (10), the 3rd lens (11) after scene objects (17) reflection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520388492.6U CN204807203U (en) | 2015-06-03 | 2015-06-03 | Polarizer based on liquid crystal is harmonious |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520388492.6U CN204807203U (en) | 2015-06-03 | 2015-06-03 | Polarizer based on liquid crystal is harmonious |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204807203U true CN204807203U (en) | 2015-11-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520388492.6U Expired - Fee Related CN204807203U (en) | 2015-06-03 | 2015-06-03 | Polarizer based on liquid crystal is harmonious |
Country Status (1)
| Country | Link |
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| CN (1) | CN204807203U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576395A (en) * | 2017-09-22 | 2018-01-12 | 中国科学院西安光学精密机械研究所 | A kind of multispectral camera lens, multispectral survey device and its scaling method |
-
2015
- 2015-06-03 CN CN201520388492.6U patent/CN204807203U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576395A (en) * | 2017-09-22 | 2018-01-12 | 中国科学院西安光学精密机械研究所 | A kind of multispectral camera lens, multispectral survey device and its scaling method |
| CN107576395B (en) * | 2017-09-22 | 2023-12-26 | 中国科学院西安光学精密机械研究所 | Multispectral lens, multispectral measuring device and calibration method thereof |
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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: 20160603 |