The most important part of any camera is the lens, which directs light in ways that create images to mirror reality. Today’s photographic lenses are sophisticated instruments composed of multiple elements (individual glass or plastic lens discs), paired with an aperture, shutter, and controls, all arranged along a central axis, and held within the lens casing.
Near-eye displays – like those used in augmented (AR), virtual (VR), and mixed (MR) reality devices – project virtual objects and information in close proximity to the human eye, sometimes encompassing the user’s entire angular field of view. This proximity not only magnifies display projections, but also enhances defects like non-uniformity, line and pixel defects, poor image clarity, and image positioning issues.
“Help me, Obi-Wan Kenobi. You’re my only hope.” In 1977, these words first introduced Star Wars audiences to Princess Leia, perhaps the most famous hologram in history. Except, she wasn’t really a three-dimensional (3D) hologram—the projection was a product of movie special-effects magic, just an image on film, because 3D holographic technology didn’t exist at the time.
As the display industry increasingly turns to pixel-dense displays to create vivid and detailed on-screen images, there is a growing need for precise, high-resolution measurement methods to ensure quality of these displays. Particularly with emissive technologies like OLED and microLED, and microdisplays that are viewed near to the eye, a single defective pixel or sub-pixel can impact display performance and user experience.
MicroLED (µLED) displays offer the potential of wider color gamut, higher contrast ratio, and deeper blacks than LCD (liquid crystal display) and OLED (organic light-emitting diode) displays. MicroLEDs match OLED technology for response time and view-angle performance, but exceed OLED in brightness and ruggedness, with much lower power consumption.
When we think of virtual reality (VR) and augmented reality (AR), the first thing that comes to mind is typically entertainment and games like VR sports or Pokémon GO. But the uses of this technology go far beyond recreation. In fact, AR and VR devices are poised to revolutionize medicine with new clinical applications and treatments.
The F-35 Gen III Helmet is the most advanced helmet-mounted display (HMD) in the world.
The TT-ARVR module for TrueTest Software provides a test suite to efficiently perform light, color, and dimensional measurements used to evaluate the quality of displays integrated into augmented (AR), virtual (VR), and mixed (MR) reality devices and headsets.
The TT-HUD module for TrueTest Software provides a test suite to efficiently perform light, color, and dimensional measurements used to evaluate the optical quality of head-up displays (HUD), including conventional, augmented reality (AR), and other HUD projection types.
The TT-NIRI module of TrueTest Software provides a test suite to efficiently perform high-resolution angular measurement of NIR light distributions, as well as dots in structured light patterns produced by diffractive optical elements (DOE). This Spec Sheet features: Applications and Benefits of TT-NIRI Software Key Features Specifications
Imaging systems rely on sensors to accurately interpret light as photometric data and enable evaluation of displays. This paper discusses properties of today’s high-resolution sensors used for image-based photometric display testing, and examines measurement examples to compare sensor type (CCD versus CMOS), pixel size, and signal-to-noise ratio (SNR), and the effect of these properties on the accuracy and repeatability of data for pixel-level display measurement.
Watching the Winter Olympics has me dreaming of spinning through the air like snowboarder Chloe Kim, soaring off the ski jump, or racing across the ice like a speed skater—if only I had the youth and physical prowess of an athlete! However, thanks to the magic of virtual reality, I can share those experiences without risking any broken bones.
Technology industry prognosticators have been saying that 2020 will be a big year for 5G networks. It looks like they’re right, as a flurry of rollouts have taken place around the globe, starting with a handful of high-profile (if limited) carrier launches in 2019, and more coming almost weekly.
Absolute product quality has become a prerequisite to compete in a number of industries. Standard machine vision inspection systems are inadequate for detecting the subtle issues in high-end products that now dictate a manufacturer’s brand reputation. More sophisticated inspection technology is needed to replicate the acuity of the human user to see defects and anomalies. Advanced imaging solutions—such as scientific-grade CCD-based systems—offer the ability to inspect low-contrast regions in
Radiant technologies are thoughtfully engineered to achieve the fastest, simplest, and most accurate measurements of light, color, and surfaces. Imaging colorimeters and photometers leverage scientific-grade CCDs, high resolution, low noise, and factory calibration to ensure consistency of data across R&D to production. Utilizing photopic filters, Radiant cameras acquire absolute luminance and color information to qualify devices against human visual perception.
Ah, Los Angeles—the beaches, the sunshine, the sights of Hollywood…