Results 41 to 50 of about 26,334 (245)

Palm-Sized Single-Shot Full-Color Incoherent Digital Holographic Camera System with White Light

Advanced Devices & Instrumentation
The realization of full-color motion-picture holographic imaging with daily-use light is an important research objective. To achieve it, various types of single-shot phase-shifting incoherent digital holography (SSPS IDH) systems have been proposed up to
Tatsuki Tahara, Tomoyoshi Shimobaba
doaj   +1 more source

Optical memory disks in optical information processing [PDF]

, 1990
We describe the use of optical memory disks as elements in optical information processing architectures. The optical disk is an optical memory devicew ith a storage capacity approaching 1010b its which is naturally suited to parallel access.
Kobayashi, Seiji, Neifeld, Mark A., Psaltis, Demetri, Yamamura, Alan   +3 more
core  

Diffractive Optical Elements with a Large Angle of Operation Recorded in Acrylamide Based Photopolymer on Flexible Substrates

International Journal of Polymer Science, 2014
A holographic device characterised by a large angular range of operation is under development. The aim of this study is to increase the angular working range of the diffractive lens by stacking three layers of high efficiency optical elements on top of ...
Hoda Akbari, Izabela Naydenova, Lina Persechini, Sean M. Garner, Pat Cimo, Suzanne Martin   +5 more
doaj   +1 more source

Study on Two-Dimensional Exit Pupil Expansion for Diffractive Waveguide Based on Holographic Volume Grating

Applied Sciences, 2023
Diffraction gratings are becoming a preferred option for waveguide head-mounted in–out coupling devices due to their flexible optical properties and small size and light weight.
Mianhui Weng, Yizhao Wang, Xuechang Ren, Qinghong Lu   +3 more
doaj   +1 more source

Techniques for writing and reading data on an optical disk which include formation of holographic optical gratings in plural locations on the optical disk [PDF]

, 2005
An optical memory for storing and/or reading data on an optical disk. The optical disk incorporates a material in which holographic gratings can be created, and subsequently detected, at plural locations within the disk by an electro-optical head ...
Liu, Tsuen-Hsi, Mok, Fai H., Psaltis, Demetri, Zhou, Gan   +3 more
core   +1 more source

POLICRYPS-based electrically switchable Bragg reflector [PDF]

, 2015
The formation and characterization of a switchable volume reflective element fabricated from a polymer liquid crystal (LC) polymer slice (POLICRYPS) structure by holographic photopolymerization at high temperature (65 °C) using a photosensitive/nematic ...
Bunning, Timothy J., De Sio, Luciano, Tabiryan, Nelson   +2 more
core   +1 more source

Hybrid refractive holographic single vision spectacle lenses

Journal of the European Optical Society-Rapid Publications, 2019
In this contribution, we investigate hybrid single vision spectacle lenses (SVSLs) consisting of holographic optical elements (HOEs) embedded into a refractive lens.
Jannik M. Trapp, Toufic G. Jabbour, Gerhard Kelch, Thomas Pertsch, Manuel Decker   +4 more
doaj   +1 more source

See-through display based on commercial photopolymer: Optimization and shrinkage effects

Heliyon, 2023
Nowadays augmented reality, 3D Image, mixed reality and see-through applications are very attractive technologies due to their great potential. Holographic optical elements can provide interesting solutions for injection and extraction of the image in ...
Joan Josep Sirvent-Verdú, Juan Carlos Bravo, Jaume Colomina-Martínez, Cristian Neipp, Daniel Puerto, Andrés Márquez, Sergi Gallego   +6 more
doaj   +1 more source

Simultaneous reconstruction of phase and amplitude contrast from a single holographic record [PDF]

, 2009
We present a reconstruction technique for simultaneous retrieval of absorption and phase shifting properties of an object recorded by in-line holography.
Barton, Barton, Cuche, Fink, Fink, Gabor, Hans-Werner Fink, Huang, Matsumoto, Matsumoto, Matsumoto, Pedrini, Tatiana Latychevskaia, Tong, Yamazaki, Zhang, Zhang, Zhang   +17 more
core   +1 more source

Compact design for optical-see-through holographic displays employing holographic optical elements

Optics Express, 2018
Holographic AR display is a promising technology for head-mounted display devices. However, it usually has a complicated optical system and a large form factor, preventing it from widespread applications. In this work, we propose a flat-panel design to produce a compact holographic AR display, where traditional optical elements are replaced by two ...
Pengcheng Zhou, Yan Li, Shuxin Liu, Yikai Su   +3 more
openaire   +2 more sources