Compact micro snapshot channel modulation full polarization imaging detection device and method

A detection device and a snapshot technology, which are applied in the direction of measuring devices, measuring the polarization of light, and methods of obtaining spatial resolution, etc., can solve the problems of increased system size and greater influence of environmental factors, so as to achieve high work efficiency and avoid Effects of jitter noise and environmental changes, high time resolution

Inactive Publication Date: 2017-11-17
XI AN JIAOTONG UNIV
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Problems solved by technology

However, this series of technologies requires a combination of imaging and collimating mirro

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  • Compact micro snapshot channel modulation full polarization imaging detection device and method
  • Compact micro snapshot channel modulation full polarization imaging detection device and method
  • Compact micro snapshot channel modulation full polarization imaging detection device and method

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Embodiment Construction

[0043] see Figure 1 to Figure 4 As shown, the present invention is a compact micro-snapshot channel modulation full-polarization imaging detection device, which includes an objective lens 10, a full-polarization modulation module 11 and an area array detector 12 arranged in sequence along the incident light direction.

[0044] The full polarization modulation module 11 includes a first birefringent prism 111, a first half-wave plate 115, a second birefringent prism 112, a second half-wave plate 116, a third birefringent prism 113, a third Half-wave plate 117, the 4th birefringent prism 114 and linear polarizer 118, they are all placed close to each other; Linear polarizer 118 is placed close to the photosensitive surface of area array detector 12; The photosensitive surface of area array detector 12 is perpendicular to The optical axis of the detection device is placed parallel to the image plane of the objective lens 10 ; the area array detector 12 is connected with a data a...

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Abstract

The invention discloses a compact micro snapshot channel modulation full polarization imaging detection device and method. The detection device comprises an object lens, a full polarization modulation module and a surface array detector which are sequentially arranged along incident light, wherein the full polarization modulation module comprises a first birefringence prism, a first half-wave plate, a second birefringence prism, a second half-wave plate, a third birefringence prism, a third half-wave plate, a fourth birefringence prism and a linear polarizer which are sequentially arranged along the incident light, the parts cling to each other, the linear polarizer is arranged clinging to a photosurface of the surface array detector, and the photosurface of the surface array detector is perpendicular to an optical axis of the detection device and is at the image plane position of the object lens. The detection device is advantaged in that the full polarization modulation module capable of realizing combination prism light splitting is employed, the interference intensity information of a detected two-dimensional target through channel modulation at the certain time can be acquired through shooting an image, and two-dimensional space polarization graphs corresponding to all the Stokes polarization parameters can be acquired through utilizing a Fourier demodulation algorithm for processing.

Description

technical field [0001] The invention belongs to the field of optical remote sensing detection, and relates to a polarization imaging device used in the field of polarized radiation detection, in particular to a compact micro-snapshot channel-modulated full-polarization imaging detection device capable of obtaining real-time full polarization information of two-dimensional space objects and its detection method. Background technique [0002] The electromagnetic waves reflected by objects contain important polarization remote sensing information, which can not only be used to remove background noise, provide high-contrast surface, shape, shadow and roughness information, but also can be used to invert physical and chemical properties such as size and concentration of the target . Polarization imaging is an advanced remote sensing detection technology that simultaneously acquires target space and polarization information. It has certain potential for improving the efficiency a...

Claims

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Application Information

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IPC IPC(8): G01J4/00G01N21/23G01N21/17
CPCG01J4/00G01N21/17G01N21/23G01N2021/1793G01N2021/1789G01N2021/178G01N2021/1772G01J4/02
Inventor 穆廷魁
Owner XI AN JIAOTONG UNIV
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