Compact IRED from Osram Sets New Standards in Eye Tracking

By CIOReview | Tuesday, December 8, 2015

SUNNYVALE, CA: Osram, a global lighting manufacturer recently launched SFH 4770S infrared LED (IRED), which it claims to be the most compact IRED in the high power class. Its low height and high optical output of 1200 mill watts turns to be rather beneficial for smart phones and tablet. The broad emission characteristics of SFH 4770S also make it ideal for facial recognition and eye-tracking systems. It enables the applications to be activated in response to eye blinking instead of the usual double-click.

The SFH 4770S is the first component in which synios package have been used. Synios is an earlier introduced Osram package for LEDs in visible spectral range having a compact measuring of 2.7mm x 2.0mm x 0.6mm. “The SFH 4770S capture very little space,” said Chris Goeltner, Product Marketing Manager at Osram Opto Semiconductors. “Compared to the Oslon, previously Osram most compact high-power IRED, we have managed with Synios to reduce the footprint by almost one-third and the height by around one quarter.”

The IRED SFH 4770S have an emission angle of 120° to illuminate the target area. This emission characteristics helps the SFH 4770S to achieve radiant intensity of 375 mW/sr at 1 ampere which makes the IRED suitable for facial recognition and eye-tracking systems, since these systems requires brightly and uniformly illuminated user face.