Round LEDs offer better efficiency over square ones

May 07, 2012 // By Christoph Hammerschmidt
Luminus Devices, Inc. (Billerica, USA) has announced a family of round LEDs: They will accelerate the adoption of solid-state technology by displacing conventional light sources in high brightness lighting applications, the company claims.

“Optical architectures of high power entertainment fixtures are frequently defined by a circular aperture, so using a traditional square LED was like putting a square peg into a round hole,” said Don McDaniel, Global Marketing Director for Entertainment Lighting at Luminus. “Our new round LED increases system-level efficiency by as much as 30%, enabling our customers to use a single LED to replace a 250W HID lamp.” 

Other markets and applications that will benefit from Luminus' round LED technology include medical, machine vision, portable and retail spot lighting. In fiber-coupled lighting systems, round LEDs offer clear benefits, since it does away with the mismatch between round and rectangular geometries. “The fiber is round, the optic is round, but the LED has always been square – it was an optical mismatch. This has now been resolved with the round LED breakthrough that will enable us to replace the 300W Xenon lamp in an application like endoscopy.”

The company says it is investing significantly into R&D and operational infrastructure into this technology. The round LEDs will be available through distributor EBV Elektronik.

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