White Papers

White Paper

Fractional Pixel Method for Improved Pixel-Level Measurement and Correction (Demura) of High-Resolution Displays

As display resolutions increase, imaging systems are challenged to continue to provide accurate pixel-level measurements while applying increasingly limited relative imaging resolution during single-image analysis (necessary for production efficiency). A fractional pixel registration and measurement method...
As display resolutions increase, imaging systems are challenged to continue to provide accurate pixel-level measurements while applying increasingly limited relative imaging resolution during single-image analysis (necessary for production efficiency). A fractional pixel registration and measurement method...

White Paper

How to Use Imaging Colorimeters to Correct OLED, MicroLED, and Other Emissive Displays for Improved Production Efficiency and Yields

Emissive OLED, microLED (μLED), and miniLED are emerging as the next wave of technology in the display market. This is exciting because these displays promise improved display performance and visual appearance with greater efficiency than other display technologies, thanks to their individually emissive...
Emissive OLED, microLED (μLED), and miniLED are emerging as the next wave of technology in the display market. This is exciting because these displays promise improved display performance and visual appearance with greater efficiency than other display technologies, thanks to their individually emissive...

White Paper

Methods for Measuring Small Defects in Automotive Curved Displays

Curved displays offer manufacturers new design flexibility for vehicle interiors, but also introduce challenges for display measurement. This paper presents the results of several lab tests measuring a 1500R LED-lit curved display using an imaging colorimeter and analysis software to evaluate the...
Curved displays offer manufacturers new design flexibility for vehicle interiors, but also introduce challenges for display measurement. This paper presents the results of several lab tests measuring a 1500R LED-lit curved display using an imaging colorimeter and analysis software to evaluate the...

White Paper

Measuring Near-Infrared (NIR) Light Sources for Effective 3D Facial Recognition

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 accurate measurement to ensure the quality of facial recognition systems in devices such as smartphones, laptops...
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 accurate measurement to ensure the quality of facial recognition systems in devices such as smartphones, laptops...

White Paper

Enabling Display Measurement within Augmented & Virtual Reality Headsets

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 Radiant's integrated AR/VR Lens solution, and outlines the solution's advantages for evaluating human visual...
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 Radiant's integrated AR/VR Lens solution, and outlines the solution's advantages for evaluating human visual...

White Paper

Understanding Imaging System Specifications for Pixel-Level Measurement of Displays: Comparing Measurement Performance of Current CCD and CMOS Sensors

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...
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...

White Paper

Method for Repeatable Measurement of Sparkle in Anti-Glare Displays

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 results. Using this method, OEMs and manufacturers of displays can define precise, measurable tolerances for...
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 results. Using this method, OEMs and manufacturers of displays can define precise, measurable tolerances for...

White Paper

Five Signs that a Photometry-Based Imaging System is the Right Choice for Your Inspection Application

Photometric imaging solutions bridge the gap between machine vision systems and true human vision, offering consistent, quantifiable data that matches the visual acuity of human inspectors. With this balance of human and mechanical advantages, manufacturers employing photometry-based systems can establish...
Photometric imaging solutions bridge the gap between machine vision systems and true human vision, offering consistent, quantifiable data that matches the visual acuity of human inspectors. With this balance of human and mechanical advantages, manufacturers employing photometry-based systems can establish...

White Paper

Automated Solutions for SAE Standard HUD Measurement

Head-up display (HUD) technology is one of the largest growth areas in the automotive market, and standard measurement criteria are rapidly being defined to evaluate HUD performance for quality and safety. This paper introduces methods for meeting the requirements of the new SAE J1757-2 standard and outlines...
Head-up display (HUD) technology is one of the largest growth areas in the automotive market, and standard measurement criteria are rapidly being defined to evaluate HUD performance for quality and safety. This paper introduces methods for meeting the requirements of the new SAE J1757-2 standard and outlines...

White Paper

Resolution and Dynamic Range: How These Critical CCD Specifications Impact Imaging System Performance

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 that the higher the camera resolution, the higher the dynamic range, the better the image quality. Why then do...
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 that the higher the camera resolution, the higher the dynamic range, the better the image quality. Why then do...