scholarly journals Two-dimensional and three-dimensional transparent screens based on lens-array holographic optical elements

2014 ◽  
Vol 22 (12) ◽  
pp. 14363 ◽  
Author(s):  
Keehoon Hong ◽  
Jiwoon Yeom ◽  
Changwon Jang ◽  
Gang Li ◽  
Jisoo Hong ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Two Dimensional ◽  
Optical Elements ◽  
Lens Array ◽  
Holographic Optical Elements

scholarly journals Rapid Fabrication of Continuous Surface Fresnel Microlens Array by Femtosecond Laser Focal Field Engineering

Micromachines ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 112 ◽  
Author(s):  
Linyu Yan ◽  
Dong Yang ◽  
Qihuang Gong ◽  
Yan Li
Keyword(s):  
Femtosecond Laser ◽  
Three Dimensional ◽  
Fresnel Lens ◽  
Two Dimensional ◽  
Direct Writing ◽  
Lens Array ◽  
Two Photon ◽  
Rapid Fabrication ◽  
Continuous Surface ◽  
Two Photon Polymerization

Femtosecond laser direct writing through two-photon polymerization has been widely used in precision fabrication of three-dimensional microstructures but is usually time consuming. In this article, we report the rapid fabrication of continuous surface Fresnel lens array through femtosecond laser three-dimensional focal field engineering. Each Fresnel lens is formed by continuous two-photon polymerization of the two-dimensional slices of the whole structure with one-dimensional scan of the corresponding two-dimensional engineered intensity distribution. Moreover, we anneal the lens array to improve its focusing and imaging performance.

Color transparent screen using planar glass combined with lens array holographic optical elements

2016 ◽  
Author(s):  
Siqi Liu ◽  
Fei Yuan ◽  
Anqiu Chen ◽  
Haiyu Zhang ◽  
Shengqian Chang ◽  
...  
Keyword(s):  
Optical Elements ◽  
Lens Array ◽  
Holographic Optical Elements ◽  
Transparent Screen

scholarly journals Solution for pseudoscopic problem in integral imaging using phase-conjugated reconstruction of lens-array holographic optical elements

2014 ◽  
Vol 22 (11) ◽  
pp. 13659 ◽  
Author(s):  
Jiwoon Yeom ◽  
Keehoon Hong ◽  
Youngmo Jeong ◽  
Changwon Jang ◽  
Byoungho Lee
Keyword(s):  
Optical Elements ◽  
Integral Imaging ◽  
Lens Array ◽  
Holographic Optical Elements

scholarly journals Optical See-through 2D/3D Compatible Display Using Variable-Focus Lens and Multiplexed Holographic Optical Elements

Photonics ◽  
2021 ◽  
Vol 8 (8) ◽  
pp. 297
Author(s):  
Qinglin Ji ◽  
Huan Deng ◽  
Hanle Zhang ◽  
Wenhao Jiang ◽  
Feiyan Zhong ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Display Device ◽  
3D Display ◽  
Optical Elements ◽  
Reconstruction Process ◽  
Holographic Optical Elements ◽  
Projection Display ◽  
Spherical Wavefront ◽  
2D And 3D ◽  
Variable Focus

An optical see-through two-dimensional (2D)/three-dimensional (3D) compatible display using variable-focus lens and multiplexed holographic optical elements (MHOE) is presented. It mainly consists of a MHOE, a variable-focus lens and a projection display device. The customized MHOE, by using the angular multiplexing technology of volumetric holographic grating, records the scattering wavefront and spherical wavefront array required for 2D/3D compatible display. In particular, we proposed a feasible method to switch the 2D and 3D display modes by using a variable-focus lens in the reconstruction process. The proposed system solves the problem of bulky volume, and makes the MHOE more efficient to use. Based on the requirements of 2D and 3D displays, we calculated the liquid pumping volume of the variable-focus lens under two kinds of diopters.

Recent progress in see-through three-dimensional displays using holographic optical elements [Invited]

2015 ◽  
Vol 55 (3) ◽  
pp. A71 ◽  
Author(s):  
Changwon Jang ◽  
Chang-Kun Lee ◽  
Jinsoo Jeong ◽  
Gang Li ◽  
Seungjae Lee ◽  
...  
Keyword(s):  
Recent Progress ◽  
Three Dimensional ◽  
Optical Elements ◽  
Holographic Optical Elements
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