Results 181 to 190 of about 1,985,754 (220)

Frequency-based optimized random phase for computer-generated holographic display.

Applied Optics, 2021
Random phases with all frequency components lead to excessive diffusions of object waves, resulting in loss of detail in holographic reconstructions.
Zehao He, Xiaomeng Sui, Hao Zhang, Guofan Jin, Liangcai Cao   +4 more
semanticscholar   +1 more source

Digital holographic display

SPIE Proceedings, 2009
This paper describes how a Digital Holographic Projector is designed and implemented to project two-dimension virtual images onto the volumetric display media. In this research, we focus on the method to create 3D models, diffractive algorithm and the display media.
Cheok Peng Lee, Yong Poo Chia, Vijay Raj Singh, A. Asundi, Xuan Jie Khoo, Kiat Long Tay, Junxiang Zhou   +6 more
openaire   +1 more source

Holographic Flat Panel Display

Frontiers in Optics / Laser Science, 2020
We will discuss optical architectures for holographic flat panel displays and present some of our approaches to implement the slim holographic display.
Hong-Seok Lee, Chil-Sung Choi, Jungkwuen An, Yunhee Kim, Kanghee Won, Young Kim, Jong-Young Hong, Hoon Song, Byonggwon Song, Hong Suk Kim, Sunghoon Hong   +10 more
openaire   +1 more source

Research Progress of Large Viewing‐Area 3D Holographic Near‐Eye Display

Laser & Photonics Reviews, 2023
With the development of the information industry, the wearable three‐dimensional (3D) near‐eye display that can provide complete visual information has attracted increasing attention.
Taijiang Liu, Honglong Ning, Hongkun Cao, D. Luo, Zhuohui Xu, Cheng Luo, Guoping Su, Yuxiang Liu, Rihui Yao, Junbiao Peng   +9 more
semanticscholar   +1 more source

Wide-angle speckleless DMD holographic display using structured illumination with temporal multiplexing.

Optics Letters, 2020
We propose a digital micromirror device (DMD) holographic display, where speckleless holograms can be observed in the expanded viewing zone. Structured illumination (SI) is applied to expand the small diffraction angle of the DMD using a laser diode (LD)
Byounghyo Lee, Dongheon Yoo, Jinsoo Jeong, Seungjae Lee, Dukho Lee, Byoun-gkil Lee   +5 more
semanticscholar   +1 more source

Three-dimensional color holographic display

Applied Optics, 1999
Three-dimensional (3D) color holograms are recorded in a cerium-doped, strontium barium niobate (SBN:60) photorefractive crystal. These holograms are shown to reconstruct true color reproductions of the original object with an observable field of view of 37 degrees.
B P, Ketchel, C A, Heid, G L, Wood, M J, Miller, A G, Mott, R J, Anderson, G J, Salamo   +6 more
openaire   +2 more sources

Holographic Display using Volume Holographic Recording Medium

Imaging and Applied Optics 2018 (3D, AO, AIO, COSI, DH, IS, LACSEA, LS&C, MATH, pcAOP), 2018
We propose a holographic display technique that reproduces complex optical field by combing analog hologram and digital referencing. In the proposed method, large number of basis light are pre-recorded in a volume holographic recording medium and they are optically addressed and reconstructed by using a spatial light modulator.
Dae-Youl Park, Jae-Hyeung Park
openaire   +1 more source

Holographic See-Through Displays

Digital Holography and Three-Dimensional Imaging 2019, 2019
See-through displays, including head-up displays (HUD) and augmented reality (AR) displays, allow the viewer to see both the natural world and a projected image thanks to a combiner element. To offer larger field of view (FOV) and an increased eye box, holographic combiners have been used in the past.
Pierre-Alexandre Blanche, Colton Bigler, Craig Draper, Micah Mann   +3 more
openaire   +1 more source

Wide angle holographic video projection display

Optics Letters, 2021
Holographic projection displays provide high diffraction efficiency. However, they have a limited projection angle. This work proposes a holographic projection display with a wide angle, which gives an image of size 306 m m × 161 m m at 700 mm and reduced speckle noise. The solution uses single
Maksymilian Chlipała, Tomasz Kozacki, Han-Ju Yeom, Juan Martinez-Carranza, Rafał Kukołowicz, Jinwoong Kim, Jong-Heon Yang, Ji Hun Choi, Jae-Eun Pi, Chi-Sun Hwang   +9 more
openaire   +2 more sources

3D digital holographic display

The 17th Annual Meeting of the IEEELasers and Electro-Optics Society, 2004. LEOS 2004., 2004
This study presents a 3D display system based on phase-shifting digital holography. This work also shows optical recording (within 30 frames/s) of a temporally changing 3D object and its numerical reconstruction. Thus, the system can be used for real-time recording, data transmission, and reconstruction of 3D object.
O. Matoba, B. Javidi
openaire   +1 more source