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Oslon Signal blue LED gets the green light

Osram 's new blue LED chip for emergency vehicle lighting comprises indium gallium nitride and can be operated at a high current while providing a sustained, powerful, bright blue light

With the Oslon Signal, Osram Opto Semiconductors says it has developed a new LED that currently boasts the world’s brightest blue light.



Oslon Signal LED

The Oslon Signal LED is made using a special thin-film chip technology.

This powerful blue light that lasts during long journeys is crucial for the signal lights needed by police and emergency vehicles.

Osram's Oslon Signal produces a blue colour with a luminous flux of 52 lumens at 350 mA. Its wavelength of 472 nm and all colour bins (groups) comply with the EU and US standards for signalling, 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 Oslon Signal includes chips incorporating UX:3 technology, which are capable of operating at very high performance levels even at extremely high currents. This is an important aspect, as blue signal light is often pulsed and therefore requires from high currents even greater luminous power. The LED measures only 3 x 3 mm. It is equipped with an insulated heat sink, and so can be mounted easily and conveniently, especially in combination with a conventional FR4 board.

The lens has a radiation angle of 80° and provides a highly symmetrical light output. This means the Oslon Signal can be easily mounted in existing emergency vehicle lighting applications and help provide significantly brighter signal lighting.

“Our developers have succeeded in doubling the brightness increase with blue LEDs within a very short time and therefore supplying the world’s brightest product in this sector. That’s why we support not only our customers in this regard but also contribute to greater road safety, as emergency vehicles can be seen sooner and better”, says Jennifer Rieder, marketing manager at Osram Opto Semiconductors.

In addition to blue LEDs, the entire Oslon family of the Regensburg-based company includes a variety of other colours such as red, yellow, green and white, which are all created using the latest thin-film chip technologies, which make them particularly effective.
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