CN214334008U - Polarization spectrum imaging system - Google Patents
Polarization spectrum imaging system Download PDFInfo
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- CN214334008U CN214334008U CN202022726328.5U CN202022726328U CN214334008U CN 214334008 U CN214334008 U CN 214334008U CN 202022726328 U CN202022726328 U CN 202022726328U CN 214334008 U CN214334008 U CN 214334008U
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Abstract
The utility model discloses a polarization spectrum imaging system, which comprises a photoelectric signal converter, wherein the left end of the photoelectric signal converter is sequentially provided with a front lens module, a P-F interferometer, a collection detection module and an optical fiber along the light path, the right side of the photoelectric converter is connected with a computer through a signal line, the front lens module comprises a front telescopic optical lens and a front microscopic optical lens, the collection detection module comprises a collection lens and a polarization detector, the polarization detector comprises a first polarization diaphragm, a second polarization diaphragm and a third polarization diaphragm, the polarization detector is formed by randomly combining and configuring at least one of the first polarization diaphragm, the second polarization diaphragm and the third polarization diaphragm in a N matrix form, the system has no slit, higher energy utilization rate and small difficulty in processing and preparation process, the collection and detection precision of the polarized light is higher.
Description
Technical Field
The utility model relates to a spectral imaging technical field, specific field is a polarization spectrum imaging system.
Background
The spectral imaging and the polarization imaging are combined to form a novel optical remote sensing technology, namely a polarization spectral imaging technology, which is a novel detection technology capable of integrating image information, spectral information and polarization state information of a target into a whole, has obvious principle advancement and technical advantages, spectral imaging equipment possibly has the phenomena of 'same-spectrum foreign matter' and 'same-object different-spectrum', has certain limitation on the precision of identifying the target, can achieve the optimal detection and identification capability after adding the polarization information into the image and the spectral information, is particularly suitable for target detection under the conditions of turbid media (smoke, fog, haze, dust, water bodies and the like), has the characteristics of 'strong weakening light' and 'weak light reinforcement' of the polarization state, can greatly extend detection areas at the dark-bright ends of remote sensing, and can accurately depict and discover atmospheric attenuation by using a polarization means, can provide objective basis for the new atmospheric window theory, and the polarization spectrum imaging system based on the polarization grating: the system adopts a novel transmission type anisotropic polarization sensitive grating which can realize the separation of polarization dimension and spectrum dimension, but the system has aliasing phenomenon in the aspect of spectrum acquisition, the measurement of the polarization state needs to be calculated through combination, and meanwhile, the system has a slit, the energy utilization rate is not high, and the processing and preparation process difficulty of the transmission grating is large.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a polarization spectrum imaging system to solve the polarization spectrum imaging system based on polarization grating who provides in the above-mentioned background art: the system adopts a transmission type anisotropic polarization sensitive grating which can realize the separation of polarization dimension and spectrum dimension, but the system has aliasing phenomenon in the aspect of spectrum acquisition, the measurement of the polarization state needs to be calculated by combination, and meanwhile, the system has the problems of narrow slits, low energy utilization rate and large difficulty in the processing and preparation process of the transmission grating.
In order to achieve the above object, the utility model provides a following technical scheme: a polarization spectrum imaging system comprises a photoelectric signal converter, wherein a front lens module, a P-F interferometer, a collection detection module and an optical fiber are sequentially arranged at the left end of the photoelectric signal converter along a light path, a computer is connected to the right side of the photoelectric signal converter through a signal line, the front lens module comprises a front telescopic optical lens and a front microscopic optical lens, the front telescopic optical lens comprises a light inlet lens, a light collecting lens is arranged on the right side of the light inlet lens, an optical cavity is arranged between the light inlet lens and the light collecting lens, the front microscopic optical lens comprises a protective lens, a parallel light lens is arranged on the right side of the protective lens, the collection detection module comprises a collection lens and a polarization detector, the polarization detector comprises a first polarization membrane, a second polarization membrane and a third polarization membrane, and the polarization detector is composed of the first polarization membrane, At least one of the second polarizing film and the third polarizing film is configured in an N x N matrix form in any combination.
Preferably, the P-F interferometer comprises a G1 interference glass plate and a G2 interference glass plate, the G1 interference glass plate and the G2 interference glass plate are glass plates with inclined outer surfaces and slightly wedge angles, and the inner surfaces of the G1 interference glass plate and the G2 interference glass plate are parallel and plated with high-reflectivity films.
Preferably, the first polarizing film sheet is arranged in a 2 × 2 matrix from a 0-degree linear polarization direction, a 45-degree linear polarization direction, a 135-degree linear polarization direction, and a 90-degree polarization direction.
Preferably, the second polarizing film sheet is configured by a 0-degree linear polarization direction, a 45-degree linear polarization direction, a 135-degree linear polarization direction, and a circular polarization direction in a 2 × 2 matrix.
Preferably, the third polarizing film sheet is configured by a 0-degree linear polarization direction, a 45-degree linear polarization direction, a 135-degree linear polarization direction, and a non-polarizing direction in a 2 × 2 matrix.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a polarization spectrum imaging system, adopt leading camera lens module, P-F interferometer, gather detection module and optic fibre, photoelectric converter's right side is connected with the design thinking of computer through the signal line, change leading telescope optical lens and leading micro-optical lens through screwed connection, carry out preliminary parallel processing with polarized light through P-F interferometer, make gather that the detection module can be more accurate gather and survey polarized light, transmit the light signal to photoelectric converter through optic fibre afterwards and convert the signal of telecommunication, replace polarization spectrum imaging system based on polarization grating: meanwhile, the grating has the advantage that the separation of polarization dimension and spectrum dimension can be realized, the problems that the system has aliasing phenomenon in the aspect of spectrum acquisition and the measurement of the polarization state needs to be calculated in a combined mode are avoided, the system does not have a slit, the energy utilization rate is higher, the processing and preparation process difficulty is small, and the acquisition and detection accuracy of polarized light is higher.
Drawings
Fig. 1 is a schematic view of the main structure of the present invention (front telescopic optical lens);
fig. 2 is a schematic view of the main structure of the present invention (front micro-optical lens);
fig. 3 is a schematic structural diagram of a first polarizing film of the present invention;
fig. 4 is a schematic structural view of a second polarizing film of the present invention;
fig. 5 is a schematic structural diagram of a third polarizing film of the present invention.
In the figure: the system comprises a 1-photoelectric signal converter, a 2-front lens module, a 3-P-F interferometer, a 301-G1 interference glass plate, a 302-G2 interference glass plate, a 4-acquisition detection module, a 401-acquisition lens, a 402-polarization detector, a 4021-first polarization membrane, a 4022-second polarization membrane, a 4023-third polarization membrane, a 5-optical fiber, a 6-computer, a 7-front telescopic optical lens, a 701-light inlet lens, a 702-condenser lens, a 703-optical cavity, an 8-front microscopic optical lens, a 801-protective lens and an 802-parallel light lens.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a polarization spectrum imaging system comprises a photoelectric signal converter 1, wherein a front lens module 2 is sequentially arranged at the left end of the photoelectric signal converter 1 along a light path, the front telescopic optical lens 7 and a front microscopic optical lens 8 are replaced to realize the adaptability of the device to the telescopic field and the microscopic field, a P-F interferometer 3 is a high-resolution spectrum instrument manufactured by applying a multi-beam interference principle, a collecting and detecting module 4 collects and detects polarized light and an optical fiber 5 ensures the lossless transmission of optical signals, the right side of the photoelectric signal converter 1 is connected with a computer 6 through a signal line, the front lens module 2 comprises a front telescopic optical lens 7 and a front microscopic optical lens 8, the front telescopic optical lens 7 comprises an optical entrance lens 701, a light-gathering lens 702 is arranged at the right side of the optical entrance lens 701, an optical cavity 703 is arranged between the optical entrance lens 701 and the light-gathering lens 702, the front micro-optical lens 8 comprises a protective mirror 801, a parallel light lens 802 is arranged on the right side of the protective mirror 801, and the front micro-optical lens is matched with the protective mirror to achieve collection of a near point light source, the collection detection module 4 comprises a collection lens 401 and a polarization detector 402, the polarization detector 402 comprises a first polarization membrane 4021, a second polarization membrane 4022 and a third polarization membrane 4023, and the polarization detector 402 is formed by randomly combining and configuring at least one of the first polarization membrane 4021, the second polarization membrane 4022 and the third polarization membrane 4023 in a N x N matrix form to detect different polarized light.
Specifically, the P-F interferometer 3 includes a G1 interference glass plate 301 and a G2 interference glass plate 302, the G1 interference glass plate 301 and the G2 interference glass plate 302 are glass plates with inclined outer surfaces and slightly wedge angles, and the inner surfaces of the G1 interference glass plate 301 and the G2 interference glass plate 302 are parallel and plated with high-reflectivity films.
Specifically, the first polarizing film 4021 is formed by arranging 0 degree polarization direction, 45 degree polarization direction, 135 degree polarization direction, and 90 degree polarization direction in a 2 × 2 matrix, and detects polarized light in the 0 degree polarization direction, 45 degree polarization direction, 135 degree polarization direction, and 90 degree polarization direction.
Specifically, the second polarizing film 4022 is formed by arranging a 0-degree linear polarization direction, a 45-degree linear polarization direction, a 135-degree linear polarization direction, and a circular polarization direction in a 2 × 2 matrix, and detects polarized light in the 0-degree linear polarization direction, the 45-degree linear polarization direction, the 135-degree linear polarization direction, and the circular polarization direction.
Specifically, the third polarizing film 4023 is formed by arranging a 0-degree linear polarization direction, a 45-degree linear polarization direction, a 135-degree linear polarization direction, and a non-polarization direction in a 2 × 2 matrix, and detects polarized light in the 0-degree linear polarization direction, the 45-degree linear polarization direction, the 135-degree linear polarization direction, and the non-polarization direction.
The working principle is as follows: the utility model adopts the design idea that the right side of a photoelectric signal converter 1 is connected with a computer 6 through a signal line, a front telescopic optical lens 7 and a front microscopic optical lens 8 are replaced through a screw connection, the polarized light is primarily parallel processed through the P-F interferometer 3, so that the collection detection module 4 can collect and detect the polarized light more accurately, then the optical signal is transmitted to the photoelectric converter through the optical fiber 5 to be converted into an electric signal, when in use, the front telescopic optical lens 7 and the front microscopic optical lens 8 are replaced according to the field use condition, the front lens module 2 is aligned to collect a detection object, then G1 interference glass plate 301 and G2 interference glass plate 302 of the P-F interferometer 3 are finely adjusted, the primary parallel processing is carried out on the light, the incoming light then strikes the collecting lens 401, is refracted to the polarization detector 402 to detect the polarized light, is transmitted to the photoelectric signal converter 1 by the optical fiber 5 to convert the optical signal into an electrical signal, and is then transmitted to the computer 6 to display the result.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of description and attached drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model is including the conventional connected mode of circuit connection adoption conventional among the prior art, and here detailed description is not again.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A polarization spectral imaging system comprising an optoelectronic signal converter (1), characterized by: the left end of the photoelectric signal converter (1) is sequentially provided with a front lens module (2), a P-F interferometer (3), a collecting and detecting module (4) and an optical fiber (5) along a light path, the right side of the photoelectric signal converter (1) is connected with a computer (6) through a signal line, the front lens module (2) comprises a front telescopic optical lens (7) and a front micro-optical lens (8), the front telescopic optical lens (7) comprises a light inlet lens (701), a light gathering lens (702) is arranged on the right side of the light inlet lens (701), a light cavity (703) is arranged between the light inlet lens (701) and the light gathering lens (702), the front micro-optical lens (8) comprises a protective lens (801), a parallel light lens (802) is arranged on the right side of the protective lens (801), the collecting and detecting module (4) comprises a collecting lens (401) and a polarization detector (402), the polarization detector (402) comprises a first polarization film (4021), a second polarization film (4022) and a third polarization film (4023), and the polarization detector (402) is formed by randomly combining and configuring at least one of the first polarization film (4021), the second polarization film (4022) and the third polarization film (4023) in an N x N matrix form.
2. A polarized spectral imaging system according to claim 1, wherein: the P-F interferometer (3) comprises a G1 interference glass plate (301) and a G2 interference glass plate (302), the G1 interference glass plate (301) and the G2 interference glass plate (302) are glass plates with inclined outer surfaces and slight wedge angles, and the inner surfaces of the G1 interference glass plate (301) and the G2 interference glass plate (302) are parallel and plated with high-reflectivity films.
3. A polarized spectral imaging system according to claim 1, wherein: the first polarizing film (4021) is formed by arranging a 0-degree linear polarization direction, a 45-degree linear polarization direction, a 135-degree linear polarization direction and a 90-degree polarization direction in a 2 x 2 matrix.
4. A polarized spectral imaging system according to claim 1, wherein: the second polarizing film (4022) is formed by arranging a 0-degree linear polarization direction, a 45-degree linear polarization direction, a 135-degree linear polarization direction, and a circular polarization direction in a 2 x 2 matrix.
5. A polarized spectral imaging system according to claim 1, wherein: the third polarizing film (4023) is formed by arranging a 0-degree linear polarization direction, a 45-degree linear polarization direction, a 135-degree linear polarization direction, and a non-polarization direction in a 2 x 2 matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022726328.5U CN214334008U (en) | 2020-11-23 | 2020-11-23 | Polarization spectrum imaging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022726328.5U CN214334008U (en) | 2020-11-23 | 2020-11-23 | Polarization spectrum imaging system |
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| CN214334008U true CN214334008U (en) | 2021-10-01 |
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| CN202022726328.5U Expired - Fee Related CN214334008U (en) | 2020-11-23 | 2020-11-23 | Polarization spectrum imaging system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115931132A (en) * | 2023-02-20 | 2023-04-07 | 长春理工大学 | Infrared polarization detection system, device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115931132A (en) * | 2023-02-20 | 2023-04-07 | 长春理工大学 | Infrared polarization detection system, device and method |
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Granted publication date: 20211001 |