Results 51 to 60 of about 5,247 (233)
The Holographic Stereogram [PDF]
, 1969 The holographic stereogram, a hologram synthesized from ordinary stereoscopic component photographs, is investigated as an alternative to classical holograms and to previous types of stereograms for three-dimensional perfect imagery.
McCrickerd, John Thomas
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Aerial Projection 3D Display Based on Integral Imaging
Photonics, 2021 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.
Wu-Xiang Zhao +4 more
doaj +1 more source
Super‐Resolution and High‐Data‐Density Acoustic Meta‐Hologram via Amplitude and Phase Coupling
Advanced Science, EarlyView.A super‐resolution acoustic meta‐hologram utilizes amplitude‐phase coupling under energy conservation constraints to overcome the traditional diffraction limit. This conceptually advanced approach achieves high‐fidelity acoustic field reconstruction and dense information transmission, unlocking new potentials for high‐resolution acoustic imaging and ...
Xiao Guo +15 more
wiley +1 more source
, 2018 A holographic optical element (HOE) was developed to collimate a monochromatic light-emitting diode (LED). The fabrication was achieved by the interference of collimated and diverging beams from a 532 nm laser to produce the required photonic structure ...
Keshri, Sanjay +4 more
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Foveated Retinal Optimization for See-Through Near-Eye Multi-Layer Displays
IEEE Access, 2018 In order to implement 3-D displays with focus cues, several technologies, including multi-layer displays, have been introduced and studied. In multi-layer displays, a volumetric 3-D scene is represented by 2-D layer images via optimization process ...
Seungjae Lee +6 more
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Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective
Advanced Electronic Materials, EarlyView.Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe +4 more
wiley +1 more source
Fast and continuous recording of refreshable holographic stereograms
, 2018 We present a technique to record refreshable holographic stereograms continuously. We eliminated the translation stage that shifts the recording beams back and forth and replaced it with an uninterrupted transparent belt holding holographic lenses.
Pierre-Alexandre Blanche +7 more
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3D Fourier imaging based on 2D heterodyne detection at THz frequencies
APL Photonics, 2019 Holographic imaging techniques, which exploit the coherence properties of light, enable the reconstruction of the 3D scenery being viewed. While the standard approaches for the recording of holographic images require the superposition of scattered light ...
Hui Yuan +4 more
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Label-free viability assay using in-line holographic video microscopy
Scientific Reports, 2022 Total holographic characterization (THC) is presented here as an efficient, automated, label-free method of accurately identifying cell viability. THC is a single-particle characterization technology that determines the size and index of refraction of ...
Rostislav Boltyanskiy +3 more
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Sensors, 2023 Lensless holographic microscopy (LHM) comes out as a promising label-free technique since it supplies high-quality imaging and adaptive magnification in a lens-free, compact and cost-effective way.
José Ángel Picazo-Bueno +4 more
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