Osram Ostar Stage LEDs

The Osram Ostar Stage LEDs are suitable for moveable stage lights, known as moving heads, that provide powerful light beams for rock concerts and other events.

Instead of the usual lens, the LEDs feature a flat glass cover with an antireflective coating, giving the LED a much flatter profile. They are now only 1.23 mm high - one-quarter of the usual height - enabling a more compact spotlight design. The glass cover on the latest LEDs has been optimised for injection of the light into lens systems. Its etendue (the emission angle/area ratio of the emitting light surface to the projected light surface), in conjunction with customer optics, enables a very narrow beam of light (± 9°) to be produced. This beam is smaller by a factor of 2 than those of spotlights using plastic-encapsulated LEDs. This optimum bundling of the light also increases the luminance of the spotlight by a factor of two.

These light sources are based on Osram Ostar SMT platform and contain four different chips in red, green, blue and white. All four chips are manufactured using highly efficient thin-film technology. In pulse mode, the individual chips can be operated on a current of up to 2 A and up to 1 A in continuous mode.

The LEDs will last for more than 50,000 hours in constant use. They can be used in spotlights of any size, from small stage spotlights to large moving head luminaires.