Vehicle white LED with light efficiency of 40lm/W

OSRAM introduced the optical effect of 40lm/W car with a white LED Germany OSRAM Opto Semiconductors (OSRAM Opto Semiconductors GmbH) for the vehicle and camera flash and other purposes, recently developed higher luminous efficiency of the "Dragon (Golden DRAGON)" series of white light emitting diode (LED) new product LWW5SM. The company's old product LWW5SG light efficiency of 21lm/W (lumens per watt), the release of the LWW5SM reached 40lm/W, the overall size of 6 x 11 x 1.8mm, forward voltage of +3.2V, lower than the previous generation of products.

The LED in the drive current of 500mA, the amount of light reached 64lW. When the pulse is driven, the current can be up to 2A. At room temperature, the driving current is 250mA, the half life of the brightness is more than 50 thousand hours. As the maximum allowable welding temperature, DC and pulse conditions are +125 and +150. Each package is equipped with 1 blue LED chips of 1 cm2, combined with the use of phosphor to form white. Samples are now available for production in the first quarter of 2006.