Technical Articles

Radiant Vision Systems has published these technical articles:

(Electrical and Electronic Test Equipment)
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An imaging system's color measurement accuracy is highly dependent on its internal color filter system. Two kinds of filters are common for color measurement applications of displays-Bayer Pattern... (View Full Article)
(Inspection Tools and Instruments)
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Perhaps no single component is as critical to the usability and perceived quality of today's smartphones, tablets, and other electronics as their displays. The use of imaging colorimeter systems and... (View Full Article)
(Inspection Tools and Instruments)
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Selecting the right CCD-based imaging colorimeter for an inspection application requires understanding a few basic trade-offs in imaging colorimeter architecture. Proper selection of CCD, control... (View Full Article)
(Machine Vision Equipment)
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Replacing human inspectors with imaging colorimeters is one way manufacturers can ensure improved, consistent quality in the displays leaving the factory. Imaging colorimeters replicate human visual... (View Full Article)
(Inspection Tools and Instruments)
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With technological advances, auto manufacturers are tasked with meeting ever-evolving regulations and industry standards for the safety and performance of virtually every element of a vehicle. To help... (View Full Article)
(Machine Vision Equipment)
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Are you facing a tough visual inspection challenge with your devices? Advanced vision solutions leverage photometry-based imaging systems to apply higher resolution, dynamic range, and signal-to-noise... (View Full Article)
(Automotive Equipment and Products)
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Head-up display (HUD) technology is one of the largest growth areas in the automotive market, with a key focus on increased passenger safety through improved vehicle operations and operator awareness.... (View Full Article)
(Inspection Tools and Instruments)
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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... (View Full Article)
(Electrical and Electronic Test Equipment)
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Learn how one company is helping automakers connect people with their cars, using Radient colorimeters to support the development of illuminated USB connectivity modules. With the ProMetric® I... (View Full Article)
(Inspection Tools and Instruments)
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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,... (View Full Article)
(Inspection Tools and Instruments)
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This paper discusses the challenges of near-to-eye display (NED) measurement to ensure the quality of devices such as virtual (VR), augmented (AR), and mixed reality (MR) headsets. It introduces... (View Full Article)
(Inspection Tools and Instruments)
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Radiant Vision Systems has developed a solution to measure near-IR light emissions: the Near-Infrared (NIR) Intensity Lens. This February, the editors at New Equipment Digest interviewed Jens Jensen,... (View Full Article)
(Inspection Tools and Instruments)
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Human visual perception and judgment is the standard when inspecting parts for lowcontrast, subtle, and unpredictable defects. In industries like consumer electronics, aerospace, and automotive... (View Full Article)
(Inspection Tools and Instruments)
From this Article:
OLEDs (Organic Light-Emitting Diodes) are emerging as the next wave of technology in the flat-panel display market. This is exciting because OLED displays promise improved display appearance for both... (View Full Article)
(Inspection Tools and Instruments)
From this Article:
The need to support higher production quantities for display-based devices, together with escalating consumer demands for quality and competitive pressure, requires a metrology system that can provide... (View Full Article)
(Inspection Tools and Instruments)
From this Article:
Perhaps no single component is as critical to the usability and perceived quality of today's smartphones, tablets, and other electronics as their displays. Flat panel displays (FPDs) serve as the... (View Full Article)
(Video Cameras and Accessories)
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So, you're looking for an imaging system and you've just been pitched an 80-megapixel camera with a small price tag... Here are a couple of things you should know before buying inSo, you're looking... (View Full Article)
(Inspection Tools and Instruments)
From this Article:
Luminator Technology Group is a family of brands that manufacture passenger information signs, lighting, and display solutions for bus, rail, and aerospace industries. Based in Plano, Texas, Luminator... (View Full Article)
(Quality Assurance, Test and Compliance Software)
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This paper describes precise geometric, optical, and software parameters of a sparkle measurement method, which has been proven to match human visual perception of display quality with repeatable... (View Full Article)
(Inspection Tools and Instruments)
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Human vision and perception are the ultimate determinants of display quality, however human judgment is variable, making it difficult to define and apply quantitatively in research or production... (View Full Article)
(Inspection Tools and Instruments)
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Transparent displays? Flexible and foldable phones? Stick-on displays? These may sound like the displays of the future, but already Organic Light Emitting Diodes (OLEDs) are providing the foundation... (View Full Article)
(Inspection Tools and Instruments)
From this Article:
Head-up diplays (HUDs) are becoming more common in both automobiles and airplanes, helping to increase safety and reduce distractions for drivers and pilots. In aviation, HUDs have been used for... (View Full Article)
(Inspection Tools and Instruments)
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Engineers have been making big strides in recent years to apply quantum discoveries and nanotechnologies to areas such as computing, sensing, cryptology, metrology, and imaging. If you've spent much... (View Full Article)
(Optoelectronics)
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Resolution and dynamic range are two important specifications to be considered when evaluating the capabilities of an imaging colorimeter, yet they are easily misconstrued. The common assumption is... (View Full Article)
(Machine Vision Equipment)
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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,... (View Full Article)
(Inspection Tools and Instruments)
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Precision measurement of luminance and chromaticity in information displays, light sources, or other light emitting or reflecting materials requires careful consideration of application requirements... (View Full Article)
(Quality Assurance, Test and Compliance Software)
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In December 2018, Radiant released a new software module (a package of application-specific software tests and parameters from our TrueTest™ Software) that can evaluate all visual aspects of HUD... (View Full Article)
(Quality Assurance, Test and Compliance Software)
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The Radiant Vision Systems solution for OLED inspection and correction helps manufacturers of OLED devices improve product quality and yield. A ProMetric® imaging colorimeter or photometer... (View Full Article)
(Quality Assurance, Test and Compliance Software)
From this Article:
Photometry-based assembly verification performs better than typical machine vision or human inspectors when it comes to catching subtle defects in complex electromechanical assemblies, helping... (View Full Article)
(Quality Assurance, Test and Compliance Software)
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Radiant TrueTest Software offers several advantages for testing to the DFF (German Flat Panel Display Forum) Black Mura standard. Read this technical note for a method that automates testing to Black... (View Full Article)
(Machine Vision Equipment)
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Traditional machine vision systems are sufficient for many types of inspection tasks, but they aren't effective for high-precision, low-contrast, and challenging assembly verification tasks. When... (View Full Article)
(Machine Vision Equipment)
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For high-precision, highly-detailed, complex, or low-contrast assembly inspection tasks, Radiant's INSPECT.assembly solution is more accurate than human vision, and offers the speed, consistency, and... (View Full Article)
(Quality Assurance, Test and Compliance Software)
From this Article:
The automotive industry is one of the most regulated industries in the world. In order to keep up with the increasingly strict safety standards, manufacturers are in need of equipment with higher... (View Full Article)
(Inspection Tools and Instruments)
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Manufacturers of flat panel displays, illuminated keyboards, and LED lighting products need accurate, repeatable, and easy-to-use light and color measurement solutions to ensure product quality,... (View Full Article)
(Inspection Tools and Instruments)
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As the name would imply, a miniLED is small-but not as small as a microLED (µLED). While there are no official definitions, microLEDs are typically less than 50 micrometers (µm) square, with most... (View Full Article)
(Inspection Tools and Instruments)
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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... (View Full Article)
(Inspection Tools and Instruments)
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Although displays have improved the ease with which we interface with devices, the proliferation of displays into all areas of life provides a unique challenge. We are no longer tethered to stationary... (View Full Article)
(Quality Assurance, Test and Compliance Software)
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Radiant Product Manager Shannon Roberts demonstrates just a few of the different tests and features available for backlit symbol testing in our software packages.... (View Full Article)
(Quality Assurance, Test and Compliance Software)
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When it comes to inspecting the accuracy and uniformity of light-emitting symbols on an instrument panel, manufacturers are faced with a small quality control nightmare. Is it possible to ensure the... (View Full Article)
(Inspection Tools and Instruments)
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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... (View Full Article)
(Machine Vision Equipment)
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Today's electronics consumers expect a flawless device right out of the box. Scratches, dents, smudges or other imperfections can damage your brand's reputation or result in costly returns.... (View Full Article)
(Machine Vision Equipment)
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Advanced imaging solutions-such as scientific-grade CCD-based systems-offer the ability to inspect low-contrast regions in extreme detail for detection and classification of the subtlest variabilities... (View Full Article)
(Quality Assurance, Test and Compliance Software)
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To measure pixel-dense displays and individual emissive elements, Radiant provides a specially designed lens option: our Microscope Lens. Designed for high-resolution imaging of small light source and... (View Full Article)
(Inspection Tools and Instruments)
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Scientific methods allow us to understand and quantify our perception of visible light and color. In this infographic, you will learn the language of light, understand color spaces and color matching... (View Full Article)
(Quality Assurance, Test and Compliance Software)
From this Article:
The idea behind inkjet OLED printing is essentially the same: nozzles deposit a precise amount of material onto a substrate such as glass or film to build up the pixels of a display. OLED inkjet... (View Full Article)
(Quality Assurance, Test and Compliance Software)
From this Article:
As OLED production ramps up around the globe, a critical success factor for the technology is the ability to inspect and qualify these displays to ensure visual performance and quality. When a quality... (View Full Article)
(Inspection Tools and Instruments)
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This paper discusses 3D sensing and how NIR light is used for facial recognition systems. It explains the importance of measuring radiant intensity of NIR emissions and the challenges of obtaining... (View Full Article)
(Inspection Tools and Instruments)
From this Article:
Consumers used to smart phones and high-resolution display screens expect no less from their vehicle displays. Testing automotive display quality must accommodate requirements for measuring high... (View Full Article)
(Quality Assurance, Test and Compliance Software)
From this Article:
Moiré is especially common when capturing an image of a television, computer, or other screen, where the frequency of the pixelated pattern on the screen is different from the frequency of the pixels... (View Full Article)
(Machine Vision Equipment)
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While addressing fatigue issues associated with human visual inspectors, traditional machine vision systems have not typically been able to match their visual acuity when it comes to spotting subtle... (View Full Article)
(Quality Assurance, Test and Compliance Software)
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Blue light has been getting some attention in popular news lately regarding the potential negative effects of exposure to humans. The widespread adoption of phosphor-coated white LEDs (which encompass... (View Full Article)
(Spectroscopy)
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To mark the 150th anniversary of the Periodic Table of Elements, originally published in 1869, we explore how chemisty affects the colors we see, chemical properties of colored light, LEDs, and more.... (View Full Article)
(Inspection Tools and Instruments)
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Electronic paper (aka e-paper, e-ink, and electrophoretic display) is a unique visual display technology designed to replicate the look of ink printed on paper. Compared to traditional LCD, LED or... (View Full Article)
(Machine Vision Equipment)
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Radiant's Advanced Vision solutions are a new class of automated visual inspection technology. Our approach combines the benefits of automated machine vision inspection systems with the power of true... (View Full Article)