How to measure the luminance distribution of the road lighting?

Road lighting has a particular impact on improving road safety, and it is the luminance measurement that determines the level of “brightness” of the road surface observed by the driver. In this article we will discuss how to use an Imaging Luminance Measuring Device for road lighting verification in accordance with current regulations.  by Miko [...]

Does your LED product comply with new Ecodesign requirements for flicker and stroboscopic effect?

A year from now, at the end of 2021, the new Commission Regulation EU 2019 2020 (Ecodesign) enters into force. The specific requirements for electrical equipment including LED light sources are changing. In addition to the new energy efficiency classes, completely new minimum requirements for flicker and the so-called stroboscopic effect are introduced. Lamp manufacturers, [...]

UV measurements for disinfection of air, water and surfaces

Recent events related to the coronavirus pandemic have resulted in a significant increase in the interest in UV-lamp disinfection. Thus, in the article below selected issues regarding UV LED measurements along with practical tips on the specifics of working with LEDs for special applications are discussed.  by Miko Przybyla and Marcin Pelko | GL Optic [...]

Testing the quality of road lighting according to the criterion of illuminance

The quality of road lighting and the way in which urban spaces and public spaces are illuminated have been widely discussed in recent years in view of the increasing use of LED lighting, which is significantly different from traditional lighting systems with discharge lamps. New technology affects the change in the construction of the luminaire, [...]

Quantity vs. quality of LED lighting. Evaluation measures with consideration of physiology of vision, efficiency, and photobiological safety.

LED technology and its application in luminaires pose a new challenge for quantitative and qualitative evaluation of lighting, taking consideration of its influence on the comfort of performing visual tasks, on photobiological effects, and on photobiological safety. The field of LED lighting is in a particular way interpenetrated by issues related to the design, construction, [...]

Road lighting quality verification using luminance distribution method.

The use of modern LED luminaires in road lighting allows for significant energy savings and can be an opportunity to improve lighting conditions on illuminated road sections. Therefore, cities, municipalities and road managers decide to invest in modern lighting solutions. Optimal use of the advantages of the new LED technology and ensuring proper quality of [...]

Verifying indoor LED lighting for classrooms. Standard requirements, available instruments and new quality considerations

By Mikołaj Przybyła IES Member CIE Member| GL Optic  Proper lighting plays a key role in creating the right lighting conditions for learning and working in schools and other educational institutions, providing visual comfort, safety and energy efficiency. However, it is not enough to replace old luminaires with modern ones. What should be done to [...]

New Ecodesign Regulation on flicker and stroboscopic effect in LED lighting.

Flicker and Stroboscopic Visibility Measure (SVM) to be introduced by the revised Ecodesign Regulation for light sources by the end of 2019. Evaluation and measurements of optical flicker is a new task for electronic developers who provide solutions for LED lighting applications. When new drivers, power supplies or dimming electronics is purchased or designed, engineers [...]

How to organize a modern photometric laboratory Part 3 – introduction to luminance measuring devices

Luminance is the most important quantity in lighting design and the most important measure in road lighting and architectural illumination. It is also the measure that is probably the easiest to understand and notice by the user, because it determines the “brightness” of the observed objects and surfaces. The 21st century, revolutionized by the widely [...]

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