Components | IR-LEDs | May 30, 2017

Sights Set Right! Augmented and Virtual Reality Systems Use Infrared LEDs to “Know” Where the User is Looking

Osram’s compact IREDs provide the illumination needed by eye-tracking systems in headsets - Osram Opto Semiconductors is launching its smallest sidelooking infrared LED to date. The new SFH 4055 is based on the proven Firefly platform, used widely for LEDs in the visible spectrum. The new transmitter, which has a wavelength of 850 nm, is primarily targeted at eye-tracking systems in augmented and virtual reality headsets.

Eye-tracking systems use multiple infrared LEDs to illuminate users’ eyes and capture the light reflected back with camera sensors. This allows these systems to compute the position of the user’s pupil and work out what direction the user is looking in. Incorporating this technology into virtual reality (VR) or augmented reality (AR) headsets calls for extremely compact infrared LEDs, tiny enough to fit into glasses around eyepieces. With a footprint of just 1.0 x 0.325 x 0.55 millimeters, the new Firefly fits the bill perfectly. The LED is a sidelooker with an impressively low height of just 0.325 mm.

Intuitive Interaction, Less Computing Power
Eye tracking supports entirely new, highly intuitive forms of interaction in VR and AR applications and enables users to control software programs by directing their gaze. For instance, AR glasses can display information that relates specifically to an object that a user has selected.

There is an added benefit for VR systems: They can exploit eye tracking to reduce the amount of computing power they require – a useful capability given the need to render images extremely quickly so as to offer users a realistic experience. Image rendering calls for computers that can deliver a lot of processing and graphics power. With eye tracking, these systems can focus on rendering images at a high resolution in the line of sight and maintain a lower resolution in the periphery.

Benefits for Optical Touchscreens Too
Infrared transmitters, lasers and photodetectors from Osram are already in use in VR and AR solutions, and the company’s first infrared Firefly will enable it to support new use cases in this fast-growing market.

The SFH 4055 is generally aimed at applications that require exceptionally compact infrared transmitters. Optical touchscreens, for instance, rely on very low-profile, side-emitting infrared LEDs to create a grid of infrared light used for detecting finger positions.


SFH 4055, Osram’s smallest sidelooking infrared LED to date, serves as a source of illumination for the eye-tracking systems used in augmented and virtual reality headsets

Add comment

You can add a comment by filling out the form below. Plain text formatting. Comments are moderated.

Question: What is 1 + 3 ?
Your answer:
FEATURED

BJB Connection Interface for Outdoor LED Modules

BJB Connection Interface for Outdoor LED Modules The model for the future design of human living areas is a "smart city" with intelligent technologies and applications. Smart Cities utilize sensors and controllers in outdoor lighting to conserve resources and enhance human comfort and safety. Read more »

FEATURED

Cree Launches Industry’s Highest Efficacy 90 CRI COB LEDs

Cree Launches Industry’s Highest Efficacy 90 CRI COB LEDs Cree, Inc. announces the XLamp® eTone™ LEDs, a breakthrough set of chip-on-board (COB) LEDs that delivers beautiful 90 color rendering index (CRI) light quality at the same efficacy as today’s standard 80 CRI LEDs. Delivering up to 155 lumens per watt (LPW) at 3000K CCT, 85°C, Cree’s new eTone COB ... Read more »

FEATURED

Nanosilica Filled Epoxy with High Abrasion Resistance

Nanosilica Filled Epoxy with High Abrasion Resistance Master Bond EP30NS is a two component epoxy system that cures at room temperature or more rapidly at elevated temperatures. It is optically clear especially in thin sections and can be used as an adhesive, sealant, coating and encapsulation compound. EP30NS offers dimensional stability, linear ... Read more »

FEATURED

WHITE PAPER - How to Overcome the Security Challenges of Smart Lighting

WHITE PAPER - How to Overcome the Security Challenges of Smart Lighting IoT-powered lighting systems are backbones for smart building applications such as energy harvesting, space optimization, and predictive maintenance. Read more »

EDITORIAL

High Conductive Foils Enabling Large Area Lighting

High Conductive Foils Enabling Large Area Lighting Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP as one of the leading partners for research and development for surface technologies and organic electronics and Sefar AG, a leading manufacturer of precision fabrics from monofilaments, developed a roll-to-roll ... Read more »

page_peel