Gray-scale deformable grating spatial light modulator for high-speed optical processing

1997 ◽  
Author(s):  
Miles L. Scott ◽  
Lawrence A. Bieber ◽  
Thottam S. Kalkur
Keyword(s):  
High Speed ◽  
Spatial Light Modulator ◽  
Optical Processing ◽  
Gray Scale ◽  
Light Modulator

Pseudo-Color Coded Optical System Based on the Spatial Light Modulator and Charge-Coupled Device

2012 ◽  
Author(s):  
S. N. Zhao ◽  
H. Chang ◽  
J. Wei ◽  
Z. Wei
Keyword(s):  
Real Time ◽  
Optical System ◽  
Spatial Light Modulator ◽  
Processing System ◽  
Optical Processing ◽  
Gray Scale ◽  
Light Modulator ◽  
Time Modulation ◽  
Gray Scale Image ◽  
Pseudo Color

A new pseudo-color coded optical system based on the liquid crystal spatial light modulator (LC-SLM) and a digital camera (CCD) is proposed. The SLM is used to replace the holographic grating with gray-scale image information, a gray-scale image in real-time modulation methods is proposed by synthesizing phase hologram and Ronchi grating, combined with the 4f coherent optical processing system and spatial filtering. For the high resolution gray image processed with existing digital pseudo-color method, the color sensitivity is low, algorithm is very complex. For traditional optical pseudo-color method, the gray scale image needs chemical pretreatment. The process is complex and time-consuming, and the real-time modulation could not be achieved. Our new method has enhanced the flexibility and adaptability of the optical pseudo-color, and give full play to the high sensitivity, high-capacity, rich colors and other features of the optical processing mode. At the same time, it overcomes the disadvantages of pure optical system which could not perform real-time processing. Therefore, it can be widely used in the field of remote sensing, biomedical, environmental monitoring, public security and criminal investigation, etc.

Ferroelectric liquid crystal cell having gray scale for high-speed spatial light modulator

1992 ◽  
Author(s):  
Yoshihiko Toyoda ◽  
Takeshi Mori ◽  
Noboru Mikami ◽  
Masahiro Nunoshita ◽  
Tatsuo Masumi
Keyword(s):  
Liquid Crystal ◽  
High Speed ◽  
Spatial Light Modulator ◽  
Liquid Crystal Cell ◽  
Ferroelectric Liquid Crystal ◽  
Gray Scale ◽  
Light Modulator ◽  
Crystal Cell

High-speed programmable lithium niobate thin film spatial light modulator

2021 ◽  
Vol 46 (5) ◽  
pp. 1037
Author(s):  
Xuanchao Ye ◽  
Fengchao Ni ◽  
Honggen Li ◽  
Haigang Liu ◽  
Yuanlin Zheng ◽  
...  
Keyword(s):  
Thin Film ◽  
Lithium Niobate ◽  
High Speed ◽  
Spatial Light Modulator ◽  
Light Modulator

High‐speed binary optically addressed spatial light modulator

1989 ◽  
Vol 55 (6) ◽  
pp. 537-539 ◽  
Author(s):  
G. Moddel ◽  
K. M. Johnson ◽  
W. Li ◽  
R. A. Rice ◽  
L. A. Pagano‐Stauffer ◽  
...  
Keyword(s):  
High Speed ◽  
Spatial Light Modulator ◽  
Light Modulator

Utilization of a liquid crystal spatial light modulator in a gray scale detour phase method for Fourier holograms

2012 ◽  
Vol 51 (32) ◽  
pp. 7877 ◽  
Author(s):  
Ghaith Makey ◽  
Moustafa Sayem El-Daher ◽  
Kanj Al-Shufi
Keyword(s):  
Liquid Crystal ◽  
Spatial Light Modulator ◽  
Phase Method ◽  
Gray Scale ◽  
Light Modulator
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