Design of compression-sensing projection measurement optical system based on digital micromirror device for spectral imaging

2021 ◽  
Author(s):  
Yaoyao Hu ◽  
Jun Chang ◽  
Xuehui Zhao ◽  
Yue Zhong
Keyword(s):  
Optical System ◽  
Spectral Imaging ◽  
Digital Micromirror Device ◽  
Compression Sensing

Development of a digital-micromirror-device-based multishot snapshot spectral imaging system

2011 ◽  
Vol 36 (14) ◽  
pp. 2692 ◽  
Author(s):  
Yuehao Wu ◽  
Iftekhar O. Mirza ◽  
Gonzalo R. Arce ◽  
Dennis W. Prather
Keyword(s):  
Imaging System ◽  
Spectral Imaging ◽  
Digital Micromirror Device

Study of an NIR digital micromirror device-based snapshot spectral imaging system

2012 ◽  
Author(s):  
Yuehao Wu ◽  
Iftekhar O. Mirza ◽  
Gonzalo R. Arce ◽  
Dennis W. Prather
Keyword(s):  
Imaging System ◽  
Spectral Imaging ◽  
Digital Micromirror Device

scholarly journals Spectral Imaging Experiments with Various Optical Schemes Based on the Same AOTF

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2984
Author(s):  
Vladislav Batshev ◽  
Alexander Machikhin ◽  
Alexey Gorevoy ◽  
Grigoriy Martynov ◽  
Demid Khokhlov ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Image Quality ◽  
Optical System ◽  
Spectral Imaging ◽  
Cost Effective ◽  
Tunable Filters ◽  
Spectral Image ◽  
Image Filtration ◽  
Spectral Imager ◽  
Coupling Components

Spectral image filtration by means of acousto-optical tunable filters (AOTFs) has multiple applications. For its implementation, a few different optical schemes are in use. They differ in image quality, number of coupling components, dimensions and alignment complexity. To choose the optical system of AOTF-based spectral imager properly, many factors have to be considered. Though various schemes of acousto-optic (AO) filtration have been tested and discussed, their comparative analysis has not been reported up to now. In this study, we assembled the four most popular schemes (confocal, collimating, tandem and double-path) using the same AO cells and experimentally compared their main features. Depending on the application, each scheme may be the basis of compact cost-effective spectral imaging devices.

Optical System of Hyper-spectral Imaging Sensor with Small F Number in Broadband by Air for the Coastal Ocean Observation

2018 ◽  
Vol 47 (8) ◽  
pp. 822003
Author(s):  
申远 SHEN Yuan ◽  
于磊 YU Lei ◽  
陈结祥 CHEN Jie-xiang ◽  
薛辉 XUE Hui
Keyword(s):  
Optical System ◽  
Spectral Imaging ◽  
Coastal Ocean ◽  
Hyper Spectral ◽  
Hyper Spectral Imaging ◽  
Imaging Sensor

A Field Emission System For Transmission Electron Microscopy

1973 ◽  
Vol 31 ◽  
pp. 298-299
Author(s):  
Michel Troyonal ◽  
Huei Pei Kuoal ◽  
Benjamin M. Siegelal
Keyword(s):  
Electron Microscope ◽  
Field Emission ◽  
Optical System ◽  
High Vacuum ◽  
Ultra High Vacuum ◽  
Objective Lens ◽  
Electron Optical System ◽  
Cross Sectional ◽  
Transmission Electron ◽  
Emission System

A field emission system for our experimental ultra high vacuum electron microscope has been designed, constructed and tested. The electron optical system is based on the prototype whose performance has already been reported. A cross-sectional schematic illustrating the field emission source, preaccelerator lens and accelerator is given in Fig. 1. This field emission system is designed to be used with an electron microscope operated at 100-150kV in the conventional transmission mode. The electron optical system used to control the imaging of the field emission beam on the specimen consists of a weak condenser lens and the pre-field of a strong objective lens. The pre-accelerator lens is an einzel lens and is operated together with the accelerator in the constant angular magnification mode (CAM).

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