NEWS ARTICLE ARCHIVESMonitor Architectural Lighting Temperature Profiles with FLIRPure lighting pleasure, thanks to FLIR Systems
FLIR technology helps to improve the durability of Delta Light lighting Pure lighting pleasure. That has been the mantra of lighting specialist Delta Light for many years. The Belgian manufacturer of architectural lighting always tries to delight its customers by combining an appealing lighting design with thorough research and development. A continuous focus of the R&D team is ensuring the fire safety as well as improving the durability of its lighting designs. To achieve this, the team uses thermal imaging technology from FLIR Systems. Delta Light is a true trendsetter in architectural lighting. By always coming out with innovative lighting designs, the company has built itself a worldwide reputation. Delta Light currently employs some 200 people at its head office in Wevelgem, Belgium, and the company is active in over 110 countries. "A Delta Light product is always a combination of innovative system design, the right light ambiance and quality materials," says Koen Dequae, Quality and Standards Manager at Delta Light. "In terms of quality, we are especially interested in the durability of a lighting system. One of the most critical factors of durability is temperature. In order to better monitor the temperature profile of our products, Delta Light decided to purchase a thermal imaging camera from FLIR Systems."
Critical temperatures "Monitoring the temperatures of our products is critical in the design, development and qualification phase," says Koen Dequae. "We now work with LED lights that have a lifetime of up to 100,000 hours. If you realize that a temperature raise in the lighting system of a mere 10 degrees can reduce the LED lifetime by half, then you know that keeping the temperatures under control is essential."
International safety regulations "These safety standards stipulate that a lighting system design cannot exceed a certain temperature," says Koen Dequae. "To make sure that is the case, we look at the entire design and look for the hottest point. If that hottest point does not exceed that temperature, we meet the standard." Thanks to the FLIR E30 camera, Delta Light can now perform these qualification tests in house. The company does no longer need to rely on external agencies to do that. That saves Delta Light a lot of time and effort in the qualification phase.
Thermal imaging versus thermocouples "To meet the required safety standards for our products, we heavily rely on finding the hottest spot on our lighting design," says Koen Dequae. "However, with thermocouples that is not always very simple. Just by moving a thermocouple just a few millimeters on the lighting design, the temperature values can present significant differences. In other words, relying on thermocouples alone for temperature measurement is not sufficient. Only using thermocouples is like groping in the dark."
A thermal imaging camera on the other hand provides more confidence. By using the FLIR E30 camera, the Delta Light R&D specialists have an immediate overview of the temperature values of the total lighting system design in the blink of an eye. This saves valuable time. "We also use the FLIR camera to look at our electronics designs," says Koen Dequae. "This helps us see overheated components and prevent bigger component failures. Try and put a thermocouple on certain SMD board components ... It's just not possible due to their small size. With a FLIR camera, we cán see these temperature differences, also on the smallest printed circuit board components."
Speed and flexibility
"The camera gives us the speed and flexibility boost we need," says Koen Dequae. "When we are in the design phase of a lighting system, we can quickly use the FLIR camera to see whether a certain approach is feasible in terms of temperature build up. But also in the qualification phase, the FLIR E30 allows us to see temperature profiles instantly, which would take hours with thermocouples."
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