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holograms News
One-Step Hologram Generation Speeds 3D Display Creation
SHANGHAI, April 24, 2024 — Researchers from the University of Shanghai for Science and Technology (USST) introduced a one-step method to generate holograms in real time. This approach to creating computer-generated holograms (CGH) could provide a practical solution to create immersive 3D visualizations, opening a path to adopt holographic displays in diverse industries and applications. The method uses a Split-Lohmann lens-based diffraction model based on a Fourier holography system between an RGB image and the
Laser Warning Lights: From Red Bulbs to Holograms
Aug 31, 2022 — From the very first use of lasers, a key safety practice has involved providing some type of indication to alert people that they are about to enter a room where a laser is on or powered up. Further emission indicators on the laser, its power...
WiMi Hologram Cloud Inc. Establishes Subsidiary
BEIJING, Aug. 19, 2020 — WiMi Hologram Cloud Inc. announced the establishment of a wholly owned subsidiary to accelerate the development of its holographic-vision intelligent robots and fabless semiconductor businesses. The subsidiary is Lixin Technology Co. Ltd., and with...
Holograms as Security Features: Origination, Development, and Perception
Mar 30, 2020 — As anti-counterfeiting features, holograms are present on various products, from banknotes and credit cards to children’s strollers. Most people encounter them every day, yet they are often unaware of their presence. Holograms are subject to...
New Metahologram Design Created
POHANG, South Korea, Jan. 29, 2020 — A multifunctional meta-hologram design, developed by researchers at Pohang University of Science and Technology (POSTECH), can be used to create different hologram images depending on the direction of the incident light that falls on the device....
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The Reality of Intelligent Manufacturing
Jan 23, 2020 — “Rise of the Machines,” the third “Terminator” sci-fi movie, features a future controlled by cold, calculating cyborgs that make their own decisions, including going back in time to exterminate the human resistance. While the...
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Metamaterials Extend Photonics
Jan 20, 2020 — Metamaterials — engineered to have unique photonic and other properties — can enable previously difficult or impossible-to-achieve performance. Radar or lidar steering, for instance, can be achieved inexpensively without moving parts....
Interactive Hologram Uses Ultrasound Waves and LEDs
SUSSEX, England, Nov. 15, 2019 — Researchers at the University of Sussex have built a device that uses LEDs and ultrasound waves to levitate a polystyrene bead and create tactile, 3D holograms. The device, known as a Multimodal Acoustic Trap Display (MATD), maneuvers the 2 mm-wide...
UAVenture Capital: Fostering Collaboration
Nov 14, 2019 — Fletcher J. McCusker is CEO and founder of UAVenture Capital in Tucson, Ariz. He is a third-generation Tucsonan and a 1974 University of Arizona (UA) graduate. He received an honorary doctorate from the university in 2015. In 2013, McCusker and...
Improved Holographic Printing Technology Creates Realistic Colorful Holograms
BORDEAUX, France, Nov. 8, 2019 — Researchers have developed a printer that is able to produce digital 3D holograms with an unprecedented level of detail and realistic color. The printer could be used to create high-resolution color re-creations of objects or scenes for museum...
Compressive Sensing Techniques Speed 2-Photon Microscopy
HONG KONG, Sept. 16, 2019 — To enhance the imaging speed of two-photon microscopy without compromising resolution, researchers from The Chinese University of Hong Kong combined compressive imaging techniques with a multifocus laser illumination method that uses a digital...
Holographic Color Prints Combine Phase and Amplitude Control of Light for Better Optical Security
SINGAPORE, Jan. 10, 2019 — A new optical anticounterfeiting device, called “holographic color prints” by its developers at the Singapore University of Technology and Design (SUTD), provides a dual function to increase security and deter counterfeiting. The device creates...
Capasso Group Designs Metasurface Polarization Optics
CAMBRIDGE, Mass., Aug. 9, 2018 — The Capasso Group at Harvard University's John A. Paulson School of Engineering and Applied Sciences (SEAS) is focusing much of its research on metasurfaces and metasurface polarization optics. The metasurfaces are made of titanium dioxide and...
Life-Size Holograms Revolutionize Videoconferencing
Jul 24, 2018 — Holograms are pretty much everywhere. You can find them in currency, at the doctor’s office, in entertainment, and in smartphone-based augmented reality. Many people may recall rap artist Tupac Shakur’s posthumous holographic “appearance” at the...
Massive Hologram Conveys Jet Engine in Golden Hues
Apr 4, 2018 — Today, most of us need not look very far to see a hologram. They’re a common anticounterfeit feature on driver’s licenses and credit cards. But they weren’t always so commonplace — or small, for that matter. Case in point:...
Holographic Waveguide HUD Touts Larger Eye Box for Enhanced Display
TUCSON, Ariz., March 13, 2018 — Researchers demonstrated a functional prototype head-up display (HUD) that uses optical holographic elements to achieve an eye box substantially larger than what is available without the holographic component. Current head-up displays have a small...
A New Use for Deep Learning — Hologram Reconstruction
LOS ANGELES, Feb. 26, 2018 — Researchers have used a deep learning-based, computational approach to reconstruct a hologram and form a microscopic image of an object. This deep learning-based technique rapidly eliminates twin-image and self-interference-related artifacts using...
Holography Helps Uniquely Identify Free-Flowing Particles in the Air
MANHATTAN, Kan., Oct. 6, 2017 — Researchers used overlapping lasers to create holographic images of free flowing air particles. A green laser was used to measure light deflection; a red laser to provide a 3D image that could subjectively account for a variety of particle shapes....
Method Pairs Gated Digital Holography with Laser to See Obscured Objects
WASHINGTON, D.C. and SAN FRANCISCO, June 29, 2017 — A new methodology based on gated digital holography paired with a specially designed laser system allows lidar to see through obscured elements of terrain like foliage or netting. Researchers from the Naval Research Laboratory in Washington D.C....
Novel Material May Allow Everyday 3D Holography
MELBOURNE, Australia, June 15, 2017 — What could be the world’s thinnest hologram could also be the harbinger of what’s to come in consumer electronics, by paving the way for 3D holography compact enough to be integrated into everyday electronics like smartphones, laptops...
Holographic Process Uses WiFi to Generate 3D Images
MUNICH, May 16, 2017 — A holographic imaging process that generates 3D images using the microwave radiation of a Wi-Fi transmitter could be used in automated industrial facilities to track objects as they moved through production. Although processes already exist that...
Optical Diffusers Improve Definition, Viewing Angle for 3D Holograms
DAEJEON, South Korea, Feb. 17, 2017 — A wavefront shaping technique has been used to create a dynamic 3D holographic image with a viewing angle of 35 degrees in a volume of 2 cm in length, width and height. Use of the technique was shown to yield a 3D holographic display that performed...
Holographic Atomic Memory Produces Photons On Demand
WARSAW, Poland, Feb. 10, 2017 — A device that is able to generate single photons on demand in groups of several dozen or more could help scientists overcome one of the fundamental obstacles facing the construction of quantum computers. Physicists from the Faculty of Physics at the...
Holograms Gain Efficiency from Metasurface Fabrication Technique
CAMBRIDGE, Mass., May 16, 2016 — Nanostructured metasurfaces have been incorporated into compact holograms, enabling the production of different images depending on the polarization of incident light. The highly efficient holograms lose very little light in the processing of...
New Optical Component Enhances Augmented Reality Devices
LONDON, July 10, 2014 — A novel optical component could transform wearable augmented-reality and display devices. TruLife Optics Ltd. developed the component in conjunction with the National Physical Laboratory in London. The 2-mm-thick optic incorporates two holograms and...
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May 2024
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