White Papers

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...

White Paper

Efficient Measurement of Large Light Source Near-Field Color and Luminance Distributions for Optical Design and Simulation

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...
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...

White Paper

Guide to CCD-Based Imaging Colorimeters

Specially calibrated to replicate human spatial perception of brightness and color, imaging colorimeters and photometers are ideal in a broad range of measurement and inspection applications. With multiple options for CCDs, control electronics, filters, and lenses, these powerful tools can be tailored to...
Specially calibrated to replicate human spatial perception of brightness and color, imaging colorimeters and photometers are ideal in a broad range of measurement and inspection applications. With multiple options for CCDs, control electronics, filters, and lenses, these powerful tools can be tailored to...

White Paper

Choosing a Measurement System for LED Sources, Luminaires and Displays

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...
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...

White Paper

Methods for Measuring Display Defects and Mura as Correlated to Human Visual Perception

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 environments. Traditional methods for automated defect detection do not relate directly to human perception....
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 environments. Traditional methods for automated defect detection do not relate directly to human perception....

White Paper

How to Use Imaging Colorimeters for Automated Visual Inspection of Displays

The use of imaging colorimeter systems and analytical software to assess display brightness and color uniformity, contrast, and to identify defects in displays is well established. A fundamental difference between imaging colorimetry and traditional machine vision is imaging colorimetry's accuracy in...
The use of imaging colorimeter systems and analytical software to assess display brightness and color uniformity, contrast, and to identify defects in displays is well established. A fundamental difference between imaging colorimetry and traditional machine vision is imaging colorimetry's accuracy in...

White Paper

How to Use Imaging Colorimeters to Improve OLED Display Production Testing Efficiency and Yields

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 smartphones and large-format TVs at lower cost and power than other display technologies. As OLED...
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 smartphones and large-format TVs at lower cost and power than other display technologies. As OLED...