Electrically variable liquid crystal lens with spiral electrode

2021 ◽  
pp. 127783
Author(s):  
Anastasiia Pusenkova ◽  
Oleksandr Sova ◽  
Tigran Galstian
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Lens

Simulation of modal control liquid crystal lens with step sheet resistance distribution

2020 ◽  
Vol 35 (9) ◽  
pp. 908-913
Author(s):  
Wei-xing GONG ◽  
◽  
Tao YU ◽  
Wei-zhi WANG ◽  
Jia-lun ZHANG ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Sheet Resistance ◽  
Modal Control ◽  
Liquid Crystal Lens

scholarly journals Gradient pretilt angle alignment materials with different photosensitivity for tunable polarization‐independent self‐aligned liquid crystal lens

2021 ◽  
Author(s):  
Veronika S. Bezruchenko ◽  
Alexander A. Muravsky ◽  
Anatoli A. Murauski ◽  
Alexander I. Stankevich ◽  
Uladzimir V. Mahilny
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Lens ◽  
Polarization Independent ◽  
Pretilt Angle

Liquid Crystal Lens Array with Hexagonal-Hole-Patterned Electrodes

2004 ◽  
Vol 43 (9A) ◽  
pp. 6108-6111 ◽  
Author(s):  
Mao Ye ◽  
Shin Hayasaka ◽  
Susumu Sato
Keyword(s):  
Liquid Crystal ◽  
Lens Array ◽  
Hexagonal Hole ◽  
Patterned Electrodes ◽  
Liquid Crystal Lens

AN ELECTRICALLY TUNABLE FOCUSING PICO PROJECTION SYSTEM BASED ON A LIQUID CRYSTAL LENS ADOPTING A LIQUID CRYSTAL AND POLYMER COMPOSITE FILM

2011 ◽  
Vol 20 (04) ◽  
pp. 477-484 ◽  
Author(s):  
HUNG-CHUN LIN ◽  
MING-SYUAN CHEN ◽  
YI-HSIN LIN
Keyword(s):  
Liquid Crystal ◽  
Composite Film ◽  
Polymer Composite ◽  
Optical Analysis ◽  
Projection System ◽  
Polymer Composite Film ◽  
Liquid Crystal On Silicon ◽  
Focusing Lens ◽  
Liquid Crystal Lens ◽  
Image Performance

An electrically tunable liquid-crystal-on-silicon (LCOS)-based pico projection system based on a liquid crystal lens adopting a liquid crystal and polymer composite film (LCPCF) is demonstrated. The LC lens consists of two built-in sub-lenses: one is an electrically tunable focusing lens controlled by a LC layer and the other is a fixed focused LCPCF lens. The electrically tunable focusing range of the pico projection system is 200 cm to ~7 cm when the voltage is from 0 to 35 Vrms. The image performance is also demonstrated. The related optical analysis is discussed. This study opens a new window for electrically tunable focusing pico projection system.

scholarly journals Dual layer electrode liquid crystal lens for 2D/3D tunable endoscopy imaging system

2016 ◽  
Vol 24 (8) ◽  
pp. 8527 ◽  
Author(s):  
Amir Hassanfiroozi ◽  
Yi-Pai Huang ◽  
Bahram Javidi ◽  
Han-Ping D. Shieh
Keyword(s):  
Liquid Crystal ◽  
Imaging System ◽  
Liquid Crystal Lens

Effective Voltage Control of Liquid Crystal Lens for Rapid Focal Length Change

2021 ◽  
Author(s):  
Tsugumi Fukui ◽  
Sota Shimizu ◽  
Keigo Muryobayashi ◽  
Marenori Kawamura ◽  
Susumu Sato ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Focal Length ◽  
Voltage Control ◽  
Length Change ◽  
Effective Voltage ◽  
Liquid Crystal Lens

Modeling of a photo-assisted refocusable adaptive modal liquid crystal lens with a photoconductive layer

2021 ◽  
Vol 60 (11) ◽  
Author(s):  
Isa Ahmadalidokht ◽  
Ezeddin Mohajerani ◽  
Hosna Tajvidi Safa ◽  
Mohammad Mohammadimasoudi
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Lens

scholarly journals Liquid Crystal Based Head-Up Display with Electrically Controlled Contrast Ratio

Crystals ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 311
Author(s):  
Yueda Liu ◽  
Yan Li ◽  
Quanming Chen ◽  
Sida Li ◽  
Yikai Su
Keyword(s):  
Liquid Crystal ◽  
Geometric Phase ◽  
Cholesteric Liquid Crystal ◽  
Contrast Ratio ◽  
Driving Safety ◽  
Ambient Light ◽  
Circular Polarizer ◽  
Relative Brightness ◽  
Liquid Crystal Lens ◽  
Good Visibility

With the growing demand for driving safety and convenience, Head-Up Displays (HUDs) have gained more and more interest in recent years. In this paper, we propose a HUD system with the ability to adjust the relative brightness of ambient light and virtual information light. The key components of the system include a cholesteric liquid crystal (CLC) film, a geometric phase (GP) liquid crystal lens, and a circular polarizer. By controlling the voltage applied to the GP lens, the contrast ratio of the virtual information light to ambient light could be continuously tuned, so that good visibility could always be obtained under different driving conditions.

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