Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Space-time joint modulation Fourier transform imaging spectrometer and manufacturing method

A technology of Fourier transform and imaging spectrometer, applied in the field of manufacturing method and system of infrared imaging spectrometer, can solve problems such as limiting the luminous flux of the system, and achieve the effects of solving the low signal-to-noise ratio of the system, improving luminous flux and improving reliability

Active Publication Date: 2016-08-17
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the spatially modulated Fourier transform imaging spectrometer contains slits related to the spatial resolution, which limits the light flux entering the system

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
  • Space-time joint modulation Fourier transform imaging spectrometer and manufacturing method
  • Space-time joint modulation Fourier transform imaging spectrometer and manufacturing method
  • Space-time joint modulation Fourier transform imaging spectrometer and manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0029] Specific implementation mode 1. Combination figure 1 and figure 2To illustrate this embodiment, the system structure is composed of a front imaging system 1, an interference system 2, a rear imaging system 3 and a focal plane detector 4. The interference system 2 includes a plane mirror 5, a cube beam splitter 6 and a multi- step micro-mirror 7; in this embodiment, a multi-step micro-mirror 7 is used to replace the moving mirror in the traditional time-modulated Fourier transform imaging spectrometer, so that the whole system is static; After being imaged by the pre-imaging system 1, the emitted light is divided into two beams of coherent light with the same intensity by the cube beam splitter 6. One beam of light is reflected by the cube beam splitter 6 and then imaged on the plane mirror 5, and the other beam passes through After the cube beam splitter 6 is transmitted, it is imaged on the multi-level stepped micro-mirror 7 . Wherein the different reflective surfac...

specific Embodiment approach 2

[0039] Specific embodiment two, combine Figure 3 to Figure 5 This embodiment is described. This embodiment is a method for manufacturing the space-time joint modulation Fourier transform imaging spectrometer described in Embodiment 1. The method is implemented by the following steps:

[0040] a. Select the base and make a reference line on the base;

[0041] The specific process is: choose aluminum, copper, titanium, stainless steel or silicon as the base material, make the base material according to the designed size requirements to make the base of the system, and polish the upper surface; the roughness of the polished surface is less than 10 microns, and the plane The degree is less than or equal to 50 microns. Such as image 3 As shown, according to the analysis and calculation, the reference lines perpendicular to each other are made on the polished substrate by the precision machining method or the photolithography and etching method based on MOEMS technology as the r...

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 space-time combined modulation Fourier transform imaging spectrometer and its manufacturing method relate to the field of earth observation imaging spectrometers, and solve the problem that existing imaging spectrometers contain slits related to spatial resolution, which limit the luminous flux entering the system and have poor real-time performance, including Pre-optical imaging system, interference system, post-imaging beam shrinking system and focal plane detector. The interference system includes a plane mirror, a cube beam splitter and a multi-level stepped micro-mirror; the target beam enters the The cube beam splitter is divided into two beams of light, one beam of light is reflected by the cube beam splitter and imaged on the plane mirror as the first image point, and the other beam of light is transmitted to a stepped surface of the multi-level stepped micro-mirror by the cube beam splitter Imaging is the second image point; the light emitted by the first image point and the second image point are respectively transmitted and reflected by the cube beam splitter and then incident to the rear imaging beam reduction system for imaging, and the focal plane detector receives the imaging information; the present invention greatly The luminous flux of the system is improved.

Description

technical field [0001] The invention relates to the field of remote sensing observation of the earth, in particular to a manufacturing method and system of an infrared imaging spectrometer with joint modulation of time and space. Background technique [0002] Imaging spectrometer is an important tool for ground remote sensing detection. It combines the advantages of spectrometer and multispectral imager, and realizes the detection of "map-spectrum integration" of objects. Therefore, it is widely used in space remote sensing, military target detection, geological resource exploration, environmental monitoring, meteorological analysis and other fields. According to different working principles, it is mainly divided into two types: dispersion type and Fourier transform type. The dispersive imaging spectrometer can directly obtain the spectral information of the object. It mainly uses a prism or a grating as a spectroscopic element, and receives the radiation information of eac...

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 Patents(China)
IPC IPC(8): G01J3/45G01J3/02
Inventor 梁中翥梁静秋王维彪吕金光田超秦余欣
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com