In time for the Electronica show in Germany, Osram Opto Semiconductors has introduced updated Ostar.
The new version of the Ostar Headlamp LED from Osram has a number of features that improve the accuracy of the light pattern. The LED can be equipped with between one and five chips. Instead of the usual silicone encapsulation, a glass cover bonded to the frame protects the chips, and also prevents scatter losses.
A high-precision shutter integrated in the glass provides a clearly defined beam pattern on the road without losing light, as was the case previously with mechanical shutters. Compared with conventional solutions the mounting depth is also significantly reduced. Also, the glass cover itself makes the LED more robust.
Different lighting scenarios can be created, such as high beam, low beam and cornering beam, by combining different chip configurations on which lenses can be mounted.
Depending on the number of chips arranged in series, the Ostar Headlamp LED produces between 125 lm at 700 mA (one chip) and 1000 lm at 1 A (five chips). With a power rating of 12 W, as in the previous version, the enhanced brightness results from improvements in the chips themselves, as well as in the converter (phosphor) and the package. Thermal resistance for the five-chip version is around 3 K/W.