February 3, 2006—OSRAM Opto Semiconductors announces the newest member of its versatile OSTAR light-emitting diode (LED) family with OSTAR LED, originally announced late 2004, that now offers 30% more luminous efficacy than previous versions. At 420 lumens and an operating current of 700 milliamps (mA), the six-chip design with lens is brighter than a 20-watt low-voltage halogen lamp. Setting new brightness records the latest OSTAR LED is geared for a wide variety of general lighting applications, including individual workplace lighting, reading lights, residential and commercial lighting, and even specialty flashlights, according to OSRAM.
OSRAM’s OSTAR for lighting applications is equipped with four or six series-connected chips and now has a hexagonal shape that enables more LEDs to be linked together into space-saving, high-intensity packages. This arrangement provides designers flexibility in their solutions, from a single component lamp to a multi-component spotlight. A specially developed hemispherical lens, art of the standard equipment, improves the efficiency with which the light is emitted without affecting the beam characteristics.
The six-chip versions of these high-output LEDS produce 420 lumens with a lens and 300 lumens without a lens, in each case at an operating current of 700 mA and an output of 15W. The four-chip versions produce 280 lumens with a lens and 200 lumens without a lens, in each case at an operating at 700 mA and an output of 10W. The new OSTAR’s high luminous intensity makes the device a good choice as a rapid flashing light for effect lighting or stroboscopes, as this mode of operation does not shorten the product’s life.
OSRAM credits its OSTAR LED lighting breakthrough to its proprietary thin-film technology that ensures all the internally produced light is emitted at the top of the device. The white color is constant from every viewing angle and comes from a color conversion based on the chip-coating method. The yellow converter, which enables conversion to white light, is located directly on the blue chip.
For more information, visit the OSRAM Web site.
