See-through 2D/3D compatible integral imaging display system using lens-array holographic optical element and polymer dispersed liquid crystal

2020 ◽  
Vol 456 ◽  
pp. 124615 ◽  
Author(s):  
Han-Le Zhang ◽  
Huan Deng ◽  
Hui Ren ◽  
Min-Yang He ◽  
Da-Hai Li ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Optical Element ◽  
Display System ◽  
Integral Imaging ◽  
Lens Array ◽  
Polymer Dispersed Liquid Crystal ◽  
Holographic Optical Element ◽  
Polymer Dispersed

Depth-enhanced integral imaging display system with electrically variable image planes using polymer-dispersed liquid-crystal layers

2007 ◽  
Vol 46 (18) ◽  
pp. 3766 ◽  
Author(s):  
Yunhee Kim ◽  
Heejin Choi ◽  
Joohwan Kim ◽  
Seong-Woo Cho ◽  
Youngmin Kim ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Display System ◽  
Integral Imaging ◽  
Polymer Dispersed Liquid Crystal ◽  
Polymer Dispersed ◽  
Image Planes

Dual-side see-through integral imaging 3D display system based on lens array holographic optical element

Displays ◽  
2021 ◽  
pp. 102093
Author(s):  
Wu-Xiang Zhao ◽  
Han-Le Zhang ◽  
Qing-Lin Ji ◽  
Huan Deng ◽  
Da-Hai Li
Keyword(s):  
Optical Element ◽  
Display System ◽  
3D Display ◽  
Integral Imaging ◽  
Lens Array ◽  
Holographic Optical Element

Enhanced depth-of-field of an integral imaging microscope using a bifocal holographic optical element-micro lens array

2017 ◽  
Vol 42 (16) ◽  
pp. 3209 ◽  
Author(s):  
Ki-Chul Kwon ◽  
Young-Tae Lim ◽  
Chang-Won Shin ◽  
Munkh-Uchral Erdenebat ◽  
Jae-Moon Hwang ◽  
...  
Keyword(s):  
Optical Element ◽  
Depth Of Field ◽  
Integral Imaging ◽  
Lens Array ◽  
Holographic Optical Element ◽  
Micro Lens Array ◽  
Micro Lens

Depth enhancement of integral imaging by using polymer-dispersed liquid-crystal films and a dual-depth configuration

2010 ◽  
Vol 35 (18) ◽  
pp. 3135 ◽  
Author(s):  
Duc-Quang Pham ◽  
Nam Kim ◽  
Ki-Chul Kwon ◽  
Jae-Hyun Jung ◽  
Keehoon Hong ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Integral Imaging ◽  
Liquid Crystal Films ◽  
Polymer Dispersed Liquid Crystal ◽  
Crystal Films ◽  
Polymer Dispersed ◽  
Depth Enhancement

scholarly journals See-through integral imaging display using a resolution and fill factor-enhanced lens-array holographic optical element

2014 ◽  
Vol 22 (23) ◽  
pp. 27958 ◽  
Author(s):  
Changwon Jang ◽  
Keehoon Hong ◽  
Jiwoon Yeom ◽  
Byoungho Lee
Keyword(s):  
Fill Factor ◽  
Optical Element ◽  
Integral Imaging ◽  
Lens Array ◽  
Holographic Optical Element

scholarly journals Dual-View Integral Imaging 3D Display Based on Multiplexed Lens-Array Holographic Optical Element

2019 ◽  
Vol 9 (18) ◽  
pp. 3852 ◽  
Author(s):  
Hanle Zhang ◽  
Huan Deng ◽  
Minyang He ◽  
Dahai Li ◽  
Qionghua Wang
Keyword(s):  
Optical Element ◽  
Experimental Results ◽  
3D Display ◽  
Integral Imaging ◽  
Lens Array ◽  
Holographic Optical Element ◽  
Spherical Wavefront ◽  
Elemental Image

We propose a dual-view integral imaging 3D display based on a multiplexed lens-array holographic optical element (MHOE). A MHOE is a volume holographic optical element obtained by multiplexing technology, which can be used for dual-view integral imaging 3D display due to the angle selectivity of the volume HOE. In the fabrication of the MHOE, two spherical wavefront arrays with different incident angles are recorded using photopolymer material. In the reconstruction, two projectors are used to project the elemental image arrays (EIA) with corresponding angles for two viewing zones. We have developed a prototype of the dual-view integral imaging display. The experimental results demonstrate the correctness of the theory.

scholarly journals Aerial Projection 3D Display Based on Integral Imaging

Photonics ◽  
2021 ◽  
Vol 8 (9) ◽  
pp. 381
Author(s):  
Wu-Xiang Zhao ◽  
Han-Le Zhang ◽  
Qing-Lin Ji ◽  
Huan Deng ◽  
Da-Hai Li
Keyword(s):  
Glass Plate ◽  
Optical Element ◽  
Parabolic Mirror ◽  
3D Display ◽  
Thin Glass ◽  
3D Images ◽  
Integral Imaging ◽  
Lens Array ◽  
Holographic Optical Element ◽  
Volume Holography

We proposed an aerial projection 3D display based on integral imaging. It is composed of a projector, a lens-array holographic optical element (HOE), and two parabolic mirrors. The lens-array HOE is a diffraction grating and is made by the volume holography technique. The lens-array HOE can be produced on a thin glass plate, and it has the optical properties of a lens array when the Bragg condition is satisfied. When the display beams of the element image array (EIA) are projected on the lens-array HOE, 3D images can be reconstructed. The two parabolic mirrors can project 3D images into the air. The Bragg-unmatched light simply passes through the lens-array HOE. Therefore, the aerial projection 3D images appear to be imaged in the air without any medium. In the experiment, a BenQ projector was used for the projection of 3D images, with a resolution of 1600 × 1200. The diameter and the height of each parabolic mirror are 150 mm and 25 mm, respectively. The inner diameter of the parabolic mirror is 40 mm. The 3D images were projected in the air, and the experimental results prove the correctness of our display system.

scholarly journals Polymer Dispersed Cholesteric Liquid Crystals With a Toroidal Director Configuration under an Electric Field

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 732
Author(s):  
Anna P. Gardymova ◽  
Mikhail N. Krakhalev ◽  
Victor Ya. Zyryanov ◽  
Alexandra A. Gruzdenko ◽  
Andrey A. Alekseev ◽  
...  
Keyword(s):  
Optical Properties ◽  
Liquid Crystal ◽  
Electric Field ◽  
Point Defects ◽  
Structural Response ◽  
Optical Filters ◽  
Response Curves ◽  
Polymer Dispersed Liquid Crystal ◽  
Dichroic Dye ◽  
Polymer Dispersed

The electro-optical properties of polymer dispersed liquid crystal (PDLC) films are highly dependent on the features of the contained liquid crystal (LC) droplets. Cholesteric LC droplets with homeotropic boundaries can form several topologically different orientational structures, including ones with single and more point defects, layer-like, and axisymmetric twisted toroidal structures. These structures are very sensitive to an applied electric field. In this work, we have demonstrated experimentally and by computer simulations that twisted toroidal droplets reveal strong structural response to the electric field. In turn, this leads to vivid changes in the optical texture in crossed polarizers. The response of droplets of different sizes were found to be equivalent in terms of dimensionless parameters. In addition, the explanation of this phenomenon showed a comparison of theoretical and experimental structural response curves aids to determine the shape of the droplet. Finally, we demonstrated that the addition of a dichroic dye allows such films to be used as optical filters with adjustable color even without polarizers.

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