Posted: Mon, December 3, 2018
Head-up display (HUD) systems in automobiles offer safety and design advantages, by projecting speed, navigation, and situational alerts onto the car's windshield directly in the driver's field of view. Two-dimensional, fixed-distnace displays are starting to come on the market; but the next generation of 3D and augmented reality displays are already set to overtake them. How does the process of HUD measurement change with the incorporation of 3D and AR-HUD systems, which project new types of virtual images, across larger fields of view, and at a range of depths?
Posted: Mon, November 19, 2018
Albert Einstein's discovery of the photoelectric effect not only helped to resolve the quandry of whether light is a particle or a wave (it's both). But also led directly to the development of CCD sensors, the fundamental technology behind today's digital photography and imaging. Learn more about the science of CCDs and how they work to create detailed and precise images that a broad range of applications, from light & color measurement to medical imagaing.
Posted: Fri, November 9, 2018
The F-35 Generation III Helmet is currently the most advanced helmet-mounted display system (HDMS) in the world. It integrates with the F-35 Lightning II Joint Strike Fighter plane to provide an uprecedentel level of visual information, data, and responsiveness to support a pilot's situational awareness. Read more about the development and design considerations of this helmet and its head-up display (HUD), get a peek at the experience of being a modern "Top Gun" in the cockpit of this state-of-the-art aircraft, and learn about quality testing for HMDs, HUDs, and near-eye displays (NEDs).
Posted: Mon, October 29, 2018
Today's electronic devices like cell phones, laptops, and medical devices present increasingly complex assembly verification challenges. These "hard" inspection problems push the limitantions of any visual inspection method—human or machine. Assembly verification requires inspection of multiple features simultaneously and at high speed. If not caught, subtle defects—such as misrouted cables, missing screws, or misaligned connectors—can escape and end up in customer hands causing latent failures. The cost of these failures can be severe in terms of returns and warranty claims, customer dissatisfaction, and damage to brand reputation. Learn how photometry-based methods offer new capabilities to solve the hard inspection challenges.
Posted: Mon, October 22, 2018
The most important part of any camera is the lens, which directs incoming light to capture an image that mirrors reality. Today's highly sophisticated lenses are the result of a long history of optical and scientific experiments stretching all the way back to ancient civilizations. In this blog post, we look back at a bit of that history, examine how modern compound lenses work, and preview some innovative lens technologies of the future.
Posted: Mon, September 17, 2018
Customers of today’s consumer electronics devices expect a flawless product out of the box. Scratched, dented, and otherwise imperfect products can result in costly returns and warranty claims. Worse, visible defects damage your brand’s reputation and future business. Device manufacturers have employed machine vision systems and human inspectors to protect the quality of their products. Now, Advanced Vision solutions allow you to apply photometry-based surface inspection techniques that match the precision and discernment of the human eye, at automation speeds.
Posted: Tue, September 4, 2018
Luminance, illuminance, luminous flux, intensity, brightness...how do we describe the qualities and brightness of light? We explain and discuss the spectrum of electromagnetic waves, including both visible (light) and invisible (e.g., radio, microwave), and how to quantify them with photometric or radiometric measurements.
Posted: Mon, August 20, 2018
What is the CIE color space? How does "color gamut" affect the viewing experience of display screens, from smart phones to big-screen TVs? Using the colors of the 2018 World Cup, we'll explain some of the science of light and color and how to quanitify and measure displays to ensure the highest quality.
Posted: Mon, July 9, 2018
How do CCD-based imaging photometers and colorimeters simulate human visual perception to provide the most accurate measurements of light and color? In which applications does this technology add the most value in terms of R&D, end-product quality, and improved yield? Radiant addresses these topics...
Posted: Mon, June 25, 2018
These days we’re even more reliant on our screens than Snow White’s queen was on her magic mirror. Considering their importance, the need for quality and clarity of displays—from televisions and smart phones to automobile dashboards to VR headsets—is no fairy tale. Mura is a Japanese word that means unevenness, irregularity, or blemish. In the display industry, this word has been adopted as the name for irregularities and “clouding” effects seen on LCD—and more recently OLED—screens. Learn more about mura types, causes, and what you can do about it.