Chris Williams from Radiant Vision Systems a Konica Minolta company, chats to Tom Selway at AutoSens in Brussels 2018. Recorded at AutoSens Brussels 2018, the world's leading vehicle perception conference and exhibition, held at AutoWorld Museum, Brussels and coming to the USA in May 2019 at the Michigan Science Center, Detroit.
In today’s automobiles, versatile high-resolution touchpads have replaced analog gauges and knobs. Modern smart lighting adjusts to changing conditions. Radios have been replaced with multi-function, touch-sensitive infotainment displays. Generic sealed-beam and capsule headlamps have been superseded by stylish, aerodynamically-efficient, model-specific LED and HID headlamp assemblies. Head-up displays (HUDs) are becoming an automotive standard.
Charge-coupled device (CCD) sensors are used in many of today’s advanced digital cameras and imaging systems. CCDs were first developed in 1969 by physicists Willard Boyle and George Smith. They based CCD technology on Albert Einstein’s theory of the photoelectric effect, through which light is converted into electrons. A CCD sensor captures those electron signals in the form of image points, or pixels, enabling them to be read digitally.
In this article, we discuss unique measurement considerations for ensuring the quality of LED sources, and equipment for measuring LED displays, individual sources, and luminaires.
With the excitement surrounding the emergence of LED lighting and displays it is becoming increasingly important to be able to measure the performance of LEDs and LED-based systems in accurate and meaningful ways. This is even more important as LEDs are increasingly used as an alternative to more traditional technologies.
In this article published by Global LEDs/OLEDs, Radiant surveys a number of measurement methods that generate either near-field or far-field models of the LED or luminaire and evaluate their strengths and weaknesses to guide us in selecting the right measurement method for the application.
Southern California-based Deco Lighting is a manufacturer of innovative and intelligent LED lighting solutions. Learn how Radiant's Near-Field Measurement System is helping this leading company to deliver value to its customers.
In this article, we describe a method for the measurement of large light sources in a limited space that efficiently overcomes the physical limitations of traditional far-field measurement techniques. The measurement is performed from within the near-field of the light source, enabling a compact measurement set-up, and generates a detailed near-field color and luminance distribution model that can be directly converted to ray sets for optical design and that can be extrapolated to far-field
For optical design and product qualification, the output color and luminance distributions of large light sources are needed to qualify and predict the performance of architectural, automotive, street, security, entertainment and other lighting systems. However, these distributions are difficult to measure because of both the size of the source and the large space required for the measurement.
Facial recognition technology is gaining popularity across the world due to increasing cybersecurity threats. While helping to prevent security issues, it also comes with a safety risk to users if the near-infrared lasers are not measured. Radiant Vision Systems has developed a solution to measure near-IR light emissions with the introduction of the Near-Infrared Intensity Lens.
Take a look at the basic operating principles and performance tradeoffs of imaging colorimeters, a class of instruments that enable spatially resolved measurements of color and luminance that are directly applicable to displays and solid-state sources.
Imaging colorimeters excel at inspecting a range of qualities of a light source in a single measurment, thanks to significant spatial resolution that is able to capture and analyze the unifomity of light and color across an entire light source at once.
Editor in Chief of SID Information Display magazine, Jenny Donelan, interviews Radiant Vision Systems Chief Solutions Officer, Doug Kreysar, on the history and growth of Radiant Vision Systems. This article includes a Q&A with Radiant CSO Doug Kreysar and discusses the company's target markets, growth into the machine vision inspection sector, and new product releases in AR/VR display measurement for augmented and virtual reality devices.
In this article, learn how photometric and colorimetric technology matches the visual sensitivity of human vision. We discuss the advantages and applications of CCD imaging for light and color measurement, as well as component and surface inspection, that most accurately reflects the human visual experience.
Near-infrared light—the range of electromagnetic wavelengths between roughly 700 nanometers (nm) and 1500 nm—is invisible to the human eye, making it ideal for an increasing number of 3D sensing applications such as facial recognition, iris scanning, gesture recognition, terrain mapping, automobile LiDAR, and night-vision security cameras.
Near-Field Measurement Systems (NFMS) offer many benefits for characterizing lighting fixtures, including LED sources and luminaries, for intensity distribution and total flux measurements at any distance. Using Radiant's NFMS paired with PM-NFMS™ software, you can generate high-resolution 3D models and 2D spatial measurements of luminance and color as viewed from each angular position of the lighting fixture.
Learn the principles of light and color as perceived by human observers, and how to use Near-Field Measurement Systems to achieve measurements of luminance and color as viewed from each angular position of the lighting fixture, enabling the most accurate characterization of light sources in R&D environments and labs.In this Presentation, you will learn about:
Learn best practices for achieving light and color characterization for large light sources using Near-Field light measurement techniques for the most accurate and objective luminance data on fixtures as viewed from any angle. This presentation describes:Why Luminaires Need TestingNear- versus Far-FieldThe Far-Field MethodThe Near-Field MethodExtraction of Useful InformationAdvantage of Near-Field Testing