Prototype thin-film IR-emitting chip sets efficiency record for Osram

Dec. 5, 2012
Regensberg, Germany--A 1 mm2 infrared (IR)-emitting prototype chip from Osram Opto Semiconductors has reached an efficiency of up to 72% at a 100 mA current at room temperature using thin-film technology.

Regensberg, Germany--A 1 mm2 infrared (IR)-emitting prototype chip from Osram Opto Semiconductors has reached an efficiency of up to 72% at a 100 mA current at room temperature using thin-film technology. At 930 mW from a DC operating current of 1 A, its light output under laboratory conditions is 25% higher than that of the chips currently available on the market, says Osram.

The efficiency is true wall-plug efficiency, or the ratio of the radiated power to the electrical input power. The prototype has a quantum efficiency that remains around 65% up to 1 A. The 850 nm emission is useful particularly for surveillance tasks and use with CCTV cameras. There are also potential safety applications in the automotive sector, such as precrash sensors and illumination sources for night-vision systems.

“The way in which the efficiency and brightness have been increased can be transferred from 850 nm to other wavelengths,” says Markus Bröll, project manager for the development of IRED chips at Osram Opto Semiconductors in Regensburg. “This means that it will be possible to create highly energy-efficient solutions for infrared lighting in the future." Fewer components will be needed in multi-chip applications, he notes, saving both money and energy.

The new chip is expected to go into series production by the middle of 2013.

About the Author

John Wallace | Senior Technical Editor (1998-2022)

John Wallace was with Laser Focus World for nearly 25 years, retiring in late June 2022. He obtained a bachelor's degree in mechanical engineering and physics at Rutgers University and a master's in optical engineering at the University of Rochester. Before becoming an editor, John worked as an engineer at RCA, Exxon, Eastman Kodak, and GCA Corporation.

Sponsored Recommendations

Request a quote: Micro 3D Printed Part or microArch micro-precision 3D printers

April 11, 2024
See the results for yourself! We'll print a benchmark part so that you can assess our quality. Just send us your file and we'll get to work.

Request a free Micro 3D Printed sample part

April 11, 2024
The best way to understand the part quality we can achieve is by seeing it first-hand. Request a free 3D printed high-precision sample part.

How to Tune Servo Systems: The Basics

April 10, 2024
Learn how to tune a servo system using frequency-based tools to meet system specifications by watching our webinar!

Precision Motion Control for Sample Manipulation in Ultra-High Resolution Tomography

April 10, 2024
Learn the critical items that designers and engineers must consider when attempting to achieve reliable ultra-high resolution tomography results here!

Voice your opinion!

To join the conversation, and become an exclusive member of Laser Focus World, create an account today!