October 7, 2020
Waveguide combiners are the window into see-through headsets
A nanophotonics review frames field of view, brightness and colour uniformity as one linked design trade-off.
The archive
20 entries shown, each prepared after the events it records and published with its sources attached.
A spinning LED blade draws a flat image that looks solid
HYPERVSN's own pages describe a rotating-blade display; the resulting image is flat, not volumetric.
October 13, 2005
A tensioned foil scaled Pepper's ghost to concert-size stages
Two 2004 patents describe the foil, the 45-degree angle and the rigging that turned an 1862 illusion into a touring stage system.
October 10, 2014
Pulse Evolution's own SEC filing names Pepper's ghost, not a hologram
The company's 10-K reports the Billboard Music Awards act used what it calls a Pepper's Ghost illusion, and describes the ensuing patent dispute.
Haze is a regulated fluid before it is a beam effect
ANSI standards and a fluid maker's own data sheets treat atmosphere as a safety and contrast variable.
November 28, 2012
A Kickstarter campaign restarted consumer virtual reality
Cheap panels and wide lenses funded a developer kit that made head tracking and latency the real engineering problem.
April 14, 1903
A barrier or a lens decides which pixels reach which eye
Ives' 1903 parallax stereogram patent and later display surveys show how a fixed screen splits a stereo pair, and what that splitting costs.
August 19, 2021
Horizon Workrooms tracked hands, not faces, in a shared room
Meta's 2021 announcement describes Horizon Workrooms as a hand-tracked shared VR room for up to 16 people, not a face-capture system.
Broadcast flash-safety guidance also applies to LED walls
ITU-R BT.1702 and independent flash testing show photosensitive-seizure risk is tested, not eyeballed.
July 8, 2020
Together Mode cut out faces and seated them in one scene
Microsoft's 2020 announcement describes segmentation into a shared background, and today's documentation shows what survived.
Pepper's own 1890 memoir explains the ghost illusion's staging
Pepper's 1890 book records the double-stage glass technique, the Dircks dispute over credit, and why Victorian audiences were fooled.
August 14, 2024
A securities filing sizes Sphere's interior and exterior LED screens
Sphere Entertainment's 10-K documents the venue's 16K interior screen and 1.2 million-LED Exosphere, not what any show looks like inside.
February 8, 2011
A published standard puts a number on projection contrast
AVIXA's Image System Contrast Ratio standard defines the measurement producers need before blaming ambient light for a weak image.
July 31, 2024
Congress has not yet passed a federal digital-replica right
S.1367, the reintroduced NO FAKES Act, remains referred to committee as of September 2026 and has not been enacted.
January 11, 2018
BASE Hologram named its own projector, not a hologram principle
BASE Entertainment's 2018 launch announcement names Epson projection technology for its Roy Orbison and Maria Callas tours.
May 15, 1948
Gabor's 1948 paper proposed holography to fix microscopes
Nature's 1948 paper and the Nobel record show holography began as a fix for electron-microscope resolution, years before lasers existed.
Depthkit turns depth cameras into playable volumetric video
Depthkit's documentation specifies which depth cameras it supports and what a capture exports for a game engine to render.
Object Capture turns iPhone photos into ready 3D models
Apple's WWDC 2021 session and developer documentation specify photo counts, detail tiers and USDZ output.
September 16, 2022
Webex Hologram took years to move from pitch to hardware
Cisco's own posts trace Webex Hologram from an October 2021 announcement to a 12-camera light-field rig shipped to beta customers.
December 1, 2007
Tracking one head turned a flat screen into a window
A December 2007 demonstration used a Wii remote to track a viewer's head and re-render a scene, producing convincing depth without stereo.