Award-winning material

Opto-ceramic converters from SCHOTT can accelerate the breakthrough of powerful laser-phosphor projectors.

Opto-ceramic converters from SCHOTT can accelerate the breakthrough of powerful laser-phosphor projectors.

People want to share great emotions. This is clearer than ever at major events like the World Cup, when hundreds of thousands of fans celebrate together on the streets. So it was in 2014, when more than a billion people around the world watched Germany defeat Argentina in the final, either alone or at large and small public viewing events. And so it will be again this year for the title struggle in Russia. The quality of many of the projectors being used to cast games onto screens has changed in recent years. By 2020, one third of all these devices will use highly efficient laser diodes or LEDs as light sources. This so-called Solid State Lighting (SSL) offers higher brightness, superior image quality and high reliability. The technology also has the potential to fundamentally change digital projection and to be used cost effectively in movie theaters, lecture halls and home theaters.

Experts from SCHOTT have developed two inorganic ceramic-phosphor materials that are extremely temperature stable, heat conductive and energy efficient. They consist of yellow or green colored fluorescent ceramics that convert blue laser light into yellow light. The yellow light is segmented by color filters into the primary colors of projectors: red, green and blue (RGB). The ceramic-phosphor converters that were awarded the SCHOTT Innovation Award in 2018 offer outstanding performance with exceptional reliability, enabling long-life laser light sources. Lamps also no longer need to be replaced, which significantly reduces the total cost of ownership and energy costs. “SCHOTT is one of the technology leaders in this field and has already started supplying professional digital projector makers for movie theaters and major events,” adds Philippe Younès, Director Business Development at SCHOTT Advanced Optics. “Our technology will make the world a little brighter.”

Phillippe Younès, Director Business Development SCHOTT Advanced Optics.


How did SCHOTT succeed in making
projectors brighter and more powerful?



“We created a new material that combines
the properties of a ceramic with a highly
efficient phosphorus conversion. This
makes laser projectors more reliable in
terms of brightness and color reproduction.”

Philippe Younès (2nd from left) and Jens Vietor (2nd from right) accepted the 2018 SCHOTT Innovation Award for the “Opto-Ceramic Converters” project on behalf of the entire development team. They were congratulated by the Chairman of the Board of Management Dr. Frank Heinricht (right) and member of the Board of Management Hermann Ditz (left).

September 20, 2018


David Schimmel
Advanced Optics
SCHOTT North America, Inc.