Osram Opto Semiconductors has introduced a new version of the Ostar P3W LED called the Ostar Projection Power LED with a smaller package and more output. The monochrome, six-chip LED reportedly can equip mainstream projectors rated about 2500 lumen (lm) exclusively with LED lighting for the first time. The LED is available in red, converted green and blue. The company reduced the external dimensions of the new Osram Ostar Projection Power to just 27 mm x 16 mm x 2.1 mm, the same measurements as its sister LEDs, the LED P1W and P2W.
The company uses its latest UX:3 and thin-film chip technologies and production methods in the new P3W 01. At 36 amps pulsed, the red version has a typical brightness of 4500 lumen (lm). The green has a brightness of 11,000 lm, and the blue features a brightness of 33 W. Osram Opto points out that the new LED is now about 100 times brighter than the company’s LEDs in 2005.
With the new LEDs from Osram Opto Semiconductors, standard office projectors with luminous intensities of between 2500 and 3500 lm can now use LEDs as the sole light source for the first time. “In the past ten years the brightness of projectors equipped solely with LEDs has been increased by factor 100,” said Wolfgang Schnabel from Product Marketing LED at Osram Opto Semiconductors. “It is the result of years of research and development. Our customers have made huge progress in system development, and we have in chips and packages.”
One red, one green and one blue Osram Ostar Projection Power can be used as the light sources in a projector. Each of the six chips in the LED has an area of 2 mm². The chips operate in parallel.
Osram says its developers are using a novel type of connection between the chip and the heat sink which enables a small thermal resistance Rthof <0.5 K/W. Better heat dissipation allows the system to operate up to its maximum output limit. Additionally, Osram says that the faster heat dissipation allows the use of smaller heat sinks leading to a more compact design for the projectors.
The Osram Ostar Projection Power is available on request for first customer projects. Osram Opto intends to begin volume production at the end of January 2016.