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.

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

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.

P‐82: Viewing‐Angle Enhanced 3D Display Based on Lens Array Holographic Optical element

2019 ◽  
Vol 50 (1) ◽  
pp. 1543-1546
Author(s):  
Han-Le Zhang ◽  
Sai Li ◽  
Min-Yang He ◽  
Huan Deng ◽  
Da-Hai Li ◽  
...  
Keyword(s):  
Optical Element ◽  
Viewing Angle ◽  
3D Display ◽  
Lens Array ◽  
Holographic Optical Element

High-resolution augmented reality 3D display with use of a lenticular lens array holographic optical element

2019 ◽  
Vol 36 (4) ◽  
pp. 588 ◽  
Author(s):  
Huan Deng ◽  
Cong Chen ◽  
Min-Yang He ◽  
Jiao-Jiao Li ◽  
Han-Le Zhang ◽  
...  
Keyword(s):  
High Resolution ◽  
Augmented Reality ◽  
Optical Element ◽  
3D Display ◽  
Lens Array ◽  
Holographic Optical Element ◽  
Lenticular Lens

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

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 A Fast Computer-Generated Holographic Method for VR and AR Near-Eye 3D Display

2019 ◽  
Vol 9 (19) ◽  
pp. 4164 ◽  
Author(s):  
Xin Yang ◽  
HongBo Zhang ◽  
Qiong-Hua Wang
Keyword(s):  
Optical Element ◽  
Speckle Noise ◽  
3D Display ◽  
Holographic Method ◽  
Point Spread Functions ◽  
3D Images ◽  
Fast Computer ◽  
Holographic Optical Element ◽  
Projection Images ◽  
Display Systems

A fast computer-generated holographic method with multiple projection images for a near-eye VR (Virtual Reality) and AR (Augmented Reality) 3D display is proposed. A 3D object located near the holographic plane is projected onto a projection plane to obtain a plurality of projected images with different angles. The hologram is calculated by superposition of projected images convolution with corresponding point spread functions (PSF). Holographic 3D display systems with LED as illumination, 4f optical filtering system and lens as eyepiece for near-eye VR display and holographic optical element (HOE) as combiner for near-eye AR display are designed and developed. The results show that the proposed calculation method is about 38 times faster than the conventional point cloud method and the display system is compact and flexible enough to produce speckle noise-free high-quality VR and AR 3D images with efficient focus and defocus capabilities.

Fabrication of a micro-lens array for improving depth-of-field of integral imaging 3D display

2020 ◽  
Vol 59 (29) ◽  
pp. 9104
Author(s):  
Yuyan Peng ◽  
Xiongtu Zhou ◽  
Yongai Zhang ◽  
Tailiang Guo
Keyword(s):  
Depth Of Field ◽  
3D Display ◽  
Integral Imaging ◽  
Lens Array ◽  
Micro Lens Array ◽  
Micro Lens
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