Results 211 to 220 of about 122,050 (289)

Coupling characteristics to single-mode fiber by using a holographic optical element for underwater optical communication systems

URSI General Assembly and Scientific Symposium, 2023
A holographic optical element (HOE) is proposed as a substitution for the fine pointing mechanism (FPM) in underwater wireless communication. The proposed HOE has a function to couple the receiving beam to the single-mode fiber and stabilize the coupling
Hiroki Yamashita, Akihiro Omura, K. Wakunami, Y. Ichihashi, Y. Takayama, R. Oi   +5 more
semanticscholar   +1 more source

Wide viewing angle holographic augmented reality near-eye display with holographic optical element

Digital Optical Technologies, 2023
Holographic Optical Elements (HOEs) have emerged as a pivotal technology in enhancing holographic Augmented Reality (AR) display systems. This paper presents an innovative approach that utilizes an off-axis arrangement with an HOE to secure a wide field ...
Seong Taek Lee, Hosung Jeon, Woonchan Moon, Minwoo Jung, Joonku Hahn   +4 more
semanticscholar   +1 more source

Dual‐view holographic AR display based on Bragg mismatched reconstruction of the holographic optical element

Journal of the Society for Information Display, 2022
A method for dual‐view holographic display based on Bragg mismatched reconstruction of holographic optical element (HOE) is proposed. Under the Bragg mismatched condition, the reconstructed images are guided into two separated viewing zones to realize ...
Xiujuan Qin, X. Sang, Hui Li, Rui Xiao, Chongli Zhong, Binbin Yan, Z. Sun, Yu Dong   +7 more
semanticscholar   +1 more source

Bandwidth of holographic optical elements

Optics Letters, 1982
The diffraction efficiency, bandpass, and spurious beam rejection are studied for the holographic cascade lens that consists of a diffraction grating in contact with an off-axis zone plate. An analysis is presented for the bandpass of the volume diffraction grating, including the effects of grain polarizability.
T, Stone, N, George
openaire   +2 more sources

Holographic optical element for digital lensless holographic microscopy's illumination

Digital Holography and 3-D Imaging 2022, 2022
We present the development of a holographic optical element that creates a micrometrical point source producing the divergent spherical illumination needed for Digital Lensless Holographic Microscopy.
Maria J. Lopera, C. Trujillo
semanticscholar   +1 more source

Waveguide-type floating display using holographic optical element with convergent power

AR, VR, MR, 2022
Waveguide-type optical combiners with holographic optical element couplers are advantageous in augmented reality field, especially for near-to-eye displays, with their structural features such as optical see-through capability, compact form factor, and ...
Junyoung Jang, Jae-Hyeung Park
semanticscholar   +1 more source

Holographic optical element (HOE) recording technique for see-through AR-NED display using holographic printing

Digital Holography and 3-D Imaging 2022, 2022
Holographic optical element (HOE) recording technique using holographic printing is presented. Holographic printer has the potential to realize complex optical functions with high diffraction efficiency and provides wide field of view for augmented ...
Erkhembaatar Dashdavaa, S. Imtiaz, M. Hossain, Hui-Ying Wu, Hoonjong Kang, Jong-Rae Jeong, N. Kim   +6 more
semanticscholar   +1 more source

Waveguide-type Maxwellian near-eye display using a pin-mirror holographic optical element array.

Optics Letters, 2021
We propose a novel, to the best of our knowledge, waveguide-type optical see-through Maxwellian near-eye display for augmented reality. A pin-mirror holographic optical element (HOE) array enables the Maxwellian view and eye-box replication.
Myeong-Ho Choi, Kwang-Soo Shin, Junyoung Jang, W. Han, Jae-Hyeung Park   +4 more
semanticscholar   +1 more source

Stratified volume holographic optical elements

Optics Letters, 1986
Volume holographic optical elements are of considerable interest for applications in optical information processing and computing systems and in optical interconnect technology. Typical volume holographic optical elements are fabricated from bulk photosensitive materials, such that the holographic recording process occurs throughout the entire volume ...
R V, Johnson, A R, Tanguay
openaire   +2 more sources

Simply structured full-color holographic three-dimensional display using angular-compensating holographic optical element

, 2021
A simply structured full-color holographic three-dimensional (3D) display system using an angular-compensating holographic optical element (ACHOE) is proposed.
Shufeng Lin, P. Gentet, Di Wang, Seung-hyun Lee, Eun-Soo Kim, Qiong‐Hua Wang   +5 more
semanticscholar   +1 more source