Dispersion Hartmann sensor used for optical synthetic aperture imaging system inphase detection

A synthetic aperture and imaging system technology, applied in the direction of testing optical performance, etc., can solve problems such as inability to detect translation errors, achieve the effects of reducing system complexity, increasing reliability, and reducing detection errors

Active Publication Date: 2016-02-03
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
View PDF8 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dispersion fringe method can only detect the translation errors between two apertures at the same time, and cannot detect the translation errors between multiple apertures at the same time.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dispersion Hartmann sensor used for optical synthetic aperture imaging system inphase detection
  • Dispersion Hartmann sensor used for optical synthetic aperture imaging system inphase detection
  • Dispersion Hartmann sensor used for optical synthetic aperture imaging system inphase detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Such as figure 1 Shown is the structure of the dispersion Hartmann sensor of the present invention, which is composed of an interference area selection diaphragm 1, a dispersion element array 2, a lens array 3, and a camera CCD4. The broadband plane wavefront of the optical synthetic aperture imaging system first passes through the interference area selection diaphragm 1 to select several groups of adjacent two sub-aperture edge beams, and then the corresponding dispersive elements on the dispersive element array 2 of each group disperse the beam groups, and the final beam The group forms several dispersion fringes on the same camera CCD4 through corresponding lenses on the lens array 3 . These dispersion fringes are formed simultaneously so that translation errors between multiple apertures can be detected simultaneously.

[0025] Suc...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a dispersion Hartmann sensor used for optical synthetic aperture imaging system inphase detection. The sensor is composed of an interference region selected diaphragm, a dispersion element array, a lens array and a CCD camera. A number of light through holes which are corresponding to two adjacent sub-aperture edges are arranged in the interference region selected diaphragm. Each light through hole is provided with a corresponding dispersion element in the dispersion element array. Lenses which match the dispersion elements are arranged on the lens array. Groups of two adjacent sub-aperture edge beams are selected through the interference region selected diaphragm before a broadband plane wave of an optical synthetic aperture imaging system. The dispersion elements corresponding to the groups are used to disperse the beams. The beam groups form independent dispersion stripes on the sane camera target surface through the lenses at the same time. Translation errors of a number of sub-apertures are detected at the same time.

Description

technical field [0001] The invention relates to a translation error (pistone error) sensor, in particular to a sensor for detecting the translation error of an optical synthetic aperture imaging system. The invention belongs to the technical field of photoelectric measurement. Background technique [0002] The single mirror aperture of the imaging system has manufacturing technology bottlenecks and payload and volume limitations, which hinder the improvement of the angular resolution of the imaging system. In the 1970s, the optical synthetic aperture imaging technology was proposed to provide a new solution for improving the angular resolution of the imaging system. [0003] However, due to the combination of various factors, there will be translation errors between the multi-apertures, which greatly affect the imaging quality. The translation error is the aberration that has the greatest impact on the image quality of the optical synthetic aperture imaging system. Therefo...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02
Inventor 饶长辉李杨王胜千
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap