Osram Research Achievement Provides Further Innovation for LED Products

An Osram research team has succeeded in constructing the most efficient LED lamp in the world. The lamp in tubular form consumes only half the power of currently common fluorescent and LED tubes, and also achieves significantly superior colour rendering. The record-breaking light source was developed by the central research department together with the optical semiconductor and lamp business units. "This research success represents yet another innovation push with LEDs and is based in particular upon our strategic position as integrated lighting experts," stated Peter Laier, Osram’s Chief Technology Officer and executive board member responsible for the company’s general illumination business.

The lamp to be presented by Osram at Light+Building 2014 achieves an almost unprecedented efficiency level of 215 lumens per watt, and therefore generates as much light (lumens) as currently common fluorescent or LED tubes with only half the power consumption (watts). In contrast to research demonstrations until now, the lamp with a length of 1.20 meters has an identical length to traditional fluorescent lamps. The peak efficiency is achieved both with warm and cool white light.

The record is based on a combination of high-efficiency red LED chips and green-whitish Osram LEDs containing a self-developed phosphor that is approaching production maturity. Materials with maximum reflection factors are also used as well as an innovative, integrated optic for minimizing absorption. The lamp is operated with a specifically developed control unit featuring efficiency of 95%. The demonstrator emits 3,900 lumens of warm white light (3000K) and achieves a very good colour rendering index (CRI 90).

The new forms of technology used will be integrated step-by-step into OSRAM product development, and the company is expecting series products with these forms of technology from 2015.

Osram is showing at Light+Building in Hall 2 (“Alte Festhalle”) and looks forward to your visit.

Lamp technical details:
Lamp efficiency	215lm/W
Control unit efficiency (so-called driver efficiency)	95%
System efficiency (lamp and control unit)	205lm/W
Power consumption	19W
Luminous flux	3900lm
Colour temperature	3000K
Colour rendering index (CRI)	90

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