A liquid crystal tunable filter based shortwave infrared spectral imaging system: Design and integration

2012 ◽  
Vol 80 ◽  
pp. 126-134 ◽  
Author(s):  
Weilin Wang ◽  
Changying Li ◽  
Ernest W. Tollner ◽  
Glen C. Rains ◽  
Ronald D. Gitaitis
Keyword(s):  
Liquid Crystal ◽  
System Design ◽  
Imaging System ◽  
Spectral Imaging ◽  
Tunable Filter ◽  
Infrared Spectral ◽  
Imaging System Design ◽  
Shortwave Infrared

Design and Calibration of Liquid Crystal Tunable Filter Based Spectral Imaging System

2012 ◽  
Author(s):  
Weilin Wang ◽  
Changying Li ◽  
Ernest W Tollner ◽  
Ronald D Gitaitis ◽  
Glen C Rains
Keyword(s):  
Liquid Crystal ◽  
Imaging System ◽  
Spectral Imaging ◽  
Tunable Filter

scholarly journals Compressive spectral imaging system based on liquid crystal tunable filter

2018 ◽  
Vol 26 (19) ◽  
pp. 25226 ◽  
Author(s):  
Xi Wang ◽  
Yuhan Zhang ◽  
Xu Ma ◽  
Tingfa Xu ◽  
Gonzalo R. Arce
Keyword(s):  
Liquid Crystal ◽  
Imaging System ◽  
Spectral Imaging ◽  
Tunable Filter

scholarly journals Underwater Spectral Imaging System Based on Liquid Crystal Tunable Filter

2021 ◽  
Vol 9 (11) ◽  
pp. 1206
Author(s):  
Hong Song ◽  
Syed Raza Mehdi ◽  
Chaopeng Wu ◽  
Zixin Li ◽  
Hai Gong ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Imaging System ◽  
Spectral Response ◽  
Image Data ◽  
Spectral Imaging ◽  
Tunable Filter ◽  
Test Analysis ◽  
Spectral Bands ◽  
Collecting Efficiency ◽  
Imaging Sensor

In the past decade, underwater spectral imaging (USI) has shown great potential in underwater exploration for its high spectral and spatial resolution. This proposal presents a stare-type USI system combined with the liquid crystal tunable filter (LCTF) spectral splitting device. Considering the working features of LCTF and the theoretical model of USI, the core structure containing “imaging lens-LCTF-imaging sensor” is designed and developed. The system is compact, and the optical geometry is constructed minimally. The spectral calibration test analysis proved that the spectral response range of the system covers a full band of 400 nm to 700 nm with the highest spectral resolution between 6.7 nm and 18.5 nm. The experiments show that the system can quickly collect high-quality spectral image data by switching between different spectral bands arbitrarily. The designed prototype provides a feasible and reliable spectral imaging solution for in situ underwater targets observation with high spectrum collecting efficiency.

scholarly journals Miniature Compressive Ultra-spectral Imaging System Utilizing a Single Liquid Crystal Phase Retarder

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Isaac August ◽  
Yaniv Oiknine ◽  
Marwan AbuLeil ◽  
Ibrahim Abdulhalim ◽  
Adrian Stern
Keyword(s):  
Liquid Crystal ◽  
Imaging System ◽  
Spectral Imaging ◽  
Crystal Phase ◽  
Liquid Crystal Phase

Tunable infrared spectral imaging system

2020 ◽  
Author(s):  
Christine Y. Wang ◽  
Nolan Peard ◽  
Dennis Callahan ◽  
Joy Perkinson ◽  
Neil Patel ◽  
...  
Keyword(s):  
Imaging System ◽  
Spectral Imaging ◽  
Infrared Spectral
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