Blue LED light aims at police and emergency services

June 26, 2012 // By Christoph Hammerschmidt
With the Oslon Signal blue high-power LED, Osram Opto Semiconductors provides a LED that currently boasts the world's brightest blue light. Made using a special thin-film chip technology, the Oslon Signal can be operated at a high current while providing a sustained, powerful, bright blue light. Potential applications for the device are signal lights of police and emergency services.

The Oslon Signal produces a blue color at an very high brightness level, with a luminous flux of 52 lumens (lm) at 350 milliamperes (mA). Its wavelength of 472 nm and all color bins (groups) comply with the EU and US standards for signaling, in particular for Emergency Vehicle Lighting. The package platform of the Oslon family, consisting of a ceramic substrate with built-in connecting contacts and a silicone lens, remains stable and resistant to aging caused by the short-wave blue light.

The blue signal LED lamp includes chips of the high-performance UX:3 technology, which are capable of operating at very high performance levels even at extremely high currents. This aspect is important, as blue signal light is often pulsed and therefore requires from high currents even greater luminous power. Despite its power, the LED measures only 3 x 3 mm. It is equipped with an insulated heat sink, so it can be mounted easily in combination with a conventional FR4 board. The lens has a radiation angle of 80° and provides a highly symmetrical light output; the Oslon Signal can therefore also be mounted in existing emergency vehicle lighting applications and help provide significantly brighter signal lighting.

In addition to blue LEDs, the Oslon family of the Regensburg-based company includes a variety of other colors such as red, yellow, green and white, which are all designed using the latest thin-film chip technologies for better efficiency.

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