Blog

headlight-beam-distribution
Author: Tevin Donyes |

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 accuracy than ever before. Using Radiant’s “Points of Interest” tool in our ProMetric® Software, combined with a high-resolution ProMetric I-series Imaging Colorimeter, automotive manufacturers and suppliers can easily measure an entire headlamp beam distribution in a matter of seconds.


data transfer with ethernet connection
Author: Ashley Knutson |

Radiant imaging colorimeters are sophisticated precision tools that allow users to collect mountains of data, but that much data can take time to transfer. USB 2.0 ports are only able to transfer a maximum of 480 mb per second, whereas an Ethernet connection can transfer up to 1 gb per second.  That’s a big difference! So why not increase your transfer speed by using your ethernet connection?


View Angle Measurement
Author: Shaina Warner |

Display quality has never been more valued than it is today – and not just because we want the ultimate HDTV experience or the prestige that comes with owning the latest OLED smartphone (although these are definitely factors). The crux of the matter is that displays are more critical to device function and control than ever before. Think about it – how many analog components have been replaced by displays in this year’s vehicles? Beyond GPS panels, displays now function as consoles for all vehicle controls, including navigation, entertainment, heating and air conditioning, and even dashboard indicators and gauges. This trend continues in appliances, aerospace, commercial buildings, manufacturing spaces, and beyond. Displays are everywhere, and they are becoming central to the way we accomplish everyday tasks...


Recalibrating a Camera
Author: Bret Stonebridge |

When you drive a new car off the lot, you expect that it will require periodic maintenance throughout its lifetime to ensure it performs at its very best. Much like a car or other sophisticated machinery, we recommend regular recalibrations of your Radiant colorimeters and photometers. Recalibration finetunes the camera to ensure continued operation within our specifications and tolerances. Neglecting regular recalibration for long periods of time can result in debris and dust particles in the camera, dead pixels, out of spec performance, and moisture retention.


Judging Display Quality: Humans versus Imaging Colorimeters
Author: Hubert Kostal |

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 perception, meaning they “see” light and color the way a human does. In other words, an imaging colorimeter is a digital human eye. It combines the accuracy of human vision with the high repeatability of an automated system. This combination makes an imaging colorimeter superior in inspection applications than its human counterpart. Here’s why...


Truly Automated Light and Color Measurement for Tell-Tales and Indicators
Author: Shaina Warner |
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 harmonization of so many different shapes, sizes, colors, and positions of lighted features in a single space? The greatest stride thus far in light measurement over a wide area (such as a complete instrument panel) has been the application of imaging colorimeters. Colorimeters are CCD-based photometric measurement devices calibrated to match human visual sensitivity to brightness and color. These cameras capture high-resolution images of large areas and utilize special analytical software to apply visual inspection tools to capture data across an image. With an entire panel captured in a single image, colorimeters provide a two-dimensional environment where light and color data may be assessed for all illuminated symbols on an instrument cluster at once. Well... sort of...

Main functional elements — lens, filters, shutter and CCD — of an imaging colorimeter.
Author: Hubert Kostal |

The market for flat panel displays (FPDs) has undergone tremendous growth, driven mostly by increased demand for televisions, cell phones, computers, digital cameras and MP3 players. Similarly, applications for solid-state sources are expanding and include automotive lighting, surgical lamps, architectural luminaires, LED signs and a variety of consumer lighting products.

The need to support higher production quantities, together with escalating consumer demands for quality and competitive pressure, requires a metrology system that can provide manufacturers with high speed, accurate measurements of display and source luminance, color and defect characteristics. 

In this article we 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 FPDs and solid-state sources...


How to Use Imaging Colorimeters to Improve OLED Display Production
Author: Radiant Vision Systems |

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. OLEDs have superior contrast ratios and sharper images with deeper blacks and more vibrant colors. They require no backlight, resulting in a thinner, lighter-weight display that uses less power. OLEDs also bring a dramatic boost in responsiveness, about 1,000 times faster than existing technologies, virtually eliminating blur on fast-moving and 3D video...


Selecting a Light Measurement Solution: 7 Critical Parameters
Author: Radiant Vision Systems |

Precision measurement of luminance and chromaticity in information displays, light sources, or other light emitting or reflecting materials requires careful consideration of application requirements in order to identify the optimal light measurement system for the job. Resolution, imaging speed, and other parameters should be carefully weighed when designing a system. Imaging colorimeters are high sensitivity, high-accuracy CCD-based imaging systems and with multiple sensor, filter, and lens options available, and these systems can be optimized to meet the specific needs of an application. The priority of each of the following parameters should serve as a guide for selecting a colorimeter-based system...


Improving Quality Inspection of Flat Panel Displays with Imaging Colorimeters
Author: Radiant Vision Systems |

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 primary interface for these products; FPDs are also embedded in consumer products ranging from appliances, automobiles, and home security systems, to specialized commercial products for the medical, industrial, and defense industries. The importance of display quality to the success of these products and the cost – in both customer experience and the direct cost of repair and replacement - of shipping flawed products is driving manufacturers to seek alternatives to today’s quality control tests that rely on human inspection...


 
 
 
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