ARM Purification

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28 October 2019

Osram adds 850nm and 940nm IR LEDs to improve VR & AR eye-tracking systems

Osram Opto Semiconductors GmbH of Regensburg, Germany says that its new Firefly SFH 4030 and SFH 4060 infrared LEDs aim to help prevent the side effects of virtual reality (VR) and augmented reality (AR) - whereby some users are developing feelings of discomfort and dizziness when the virtual and real perceptions do not match - by enabling state-of-the-art eye-tracking solutions that provide a targeted point of reference, allowing users to safely immerse in other worlds.

Eye-tracking systems register the user’s viewing angle and the movements of their eyes. They illuminate the eyes with infrared light and register the reflections with a camera sensor. Software then determines the exact position of the eyes and the viewing direction of the user to derive relevant information for the imaging elements of the system.

Depending on the requirements of the target application, the 850nm-wavelength SFH 4060 benefits from the high sensitivity of the sensors in this wavelength range, whereas the 940nm-wavelength SFH 4030 avoids the disturbing ‘red glow’ effect where users see a red light.

The SFH 4030 and SFH 4060 feature compact dimensions of only 1.0mm x 0.325mm. Due to their low height of just 0.55mm, the side-emitting components can be easily installed, says Osram. A special feature is the black cap, which makes the two IREDs ‘invisible’ when installed.

Osram’s new Firefly SFH 4030/4060 infrared LED.

Picture: Osram’s new Firefly SFH 4030/4060 infrared LED.

“Eye-tracking offers a very intuitive way of human-machine interaction for AR and VR applications, including displaying important information about the focused object,” says product manager Bianka Schnabel. “With the IREDs’ two wavelength options and black package, we are broadening the options for our customers, and at the same time, making system integration easier.”

Tags: Osram IR LED

Visit: www.osram-os.com

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