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Micro-polarizing film array used for acquiring full-polarization parameters and production method and application thereof

A micro-polarizer array, micro-polarizer technology, applied in polarizing elements, optics, instruments, etc., can solve the problems of reduced imaging quality, complex array structure, etc., and achieve excellent linear and circular polarization detection capabilities, good polarization transmission. performance effect

Inactive Publication Date: 2014-12-17
NORTHWESTERN POLYTECHNICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The array structure of the three-layer structure is relatively complex. After the incident light is filtered by the first crystal grating, the second crystal grating and the polarizer, the attenuation of the light intensity reduces the imaging quality.

Method used

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  • Micro-polarizing film array used for acquiring full-polarization parameters and production method and application thereof
  • Micro-polarizing film array used for acquiring full-polarization parameters and production method and application thereof
  • Micro-polarizing film array used for acquiring full-polarization parameters and production method and application thereof

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Embodiment

[0041] Such as figure 1 , 2 As shown in and 3, a micro-polarizer array for obtaining full polarization parameters of the present invention includes a plurality of micro-polarizer units A with a size of 2×2, and each micro-polarizer unit A includes 0° polarizers 1, 45° polarizer 2, 90° polarizer 3 and circular polarizer 4, 0° polarizer 1 and 45° polarizer 2 are adjacent and in the same row, 90° polarizer 3 and circular polarizer 4 are adjacent and Located in the same row, the 0° polarizer 1 is adjacent to the 90° polarizer 3 and located in the same column, and the 45° polarizer 2 is adjacent to the circular polarizer 4 and located in the same column. The 0° polarizer 1, the 45° polarizer 2 and the 90° polarizer 3 are sub-wavelength grating structure polarizers, including a transparent substrate 5 and a grating 6, the grating 6 is arranged on the substrate 5, and the grating 6 includes protrusions and the groove, the surface layer of the protrusion is coated with a metal layer...

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Abstract

The invention discloses a micro-polarizing film array used for acquiring full-polarization parameters and a production method and application thereof. The micro-polarizing film comprises a plurality of micro-polarizing film units with size of 2*2. Each micro-polarizing film unit comprises a micro-polarizing film of 0 degree, a micro-polarizing film of 45 degrees, a circular micro-polarizing film and a micro-polarizing film of 90 degrees which are closely integrated on the same plane and further sequentially disposed from the top left corner in a clockwise manner. The micro-polarizing film array is easy to produce and high in polarizing light transmittance performance and integration level.

Description

technical field [0001] The invention belongs to the technical field of optical devices and applications, and in particular relates to a micro-polarizer array for obtaining full polarization parameters, a preparation method and an application thereof. Background technique [0002] In order to obtain the target polarization information, a variety of polarization imaging technologies have been developed, and the most commonly used one is the polarization imaging device based on mechanical rotating wheel. It sequentially collects images at multiple polarization angles by rotating the polarizer and wave plate. This method is simple and direct, but the time-sequential working method makes it impossible to obtain the polarization image of the moving target, so the target detection cannot be realized on the moving carrier. [0003] Polarization imaging technology continues to develop, and the most advanced polarization imaging device is a focal plane imaging device. It places a mi...

Claims

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Application Information

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IPC IPC(8): G02B27/28G02B5/30
Inventor 赵永强李杰
Owner NORTHWESTERN POLYTECHNICAL UNIV
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