Virtual Reality

Apple’s patent reveals solutions for future AR headset

EPA / Quique Garcia

Technology giant Apple Inc. has been granted another patent for its presumed headset system project, aimed at enhancing its position in the market for augmented and virtual reality (AR/VR) technologies. Documentation filed with the United States Patent and Trademark Office on June 4, 2012, is for a transparent display where images can be added for the user to see them projected in a high field of view (FOV), blending into real-world environment.

The system predates most of the competitors’ solutions in the segment, as the original invention with aspherical and diffractive optics dates from 2006, with approvals registered in 2009 and 2012. Apple has been focusing on recruiting prominent engineers and managers as well as on acquisitions of companies in the sector.

Patent US 9,383,582 B2

The patent includes a see-through visor or a plate used to project images from a source off axis. “Lenses and other optical components are used to give the user the perception that the images are coming from a greater distance, to prevent eyestrain. In head mounted displays (HMDs) that use a single display, the image is typically projected through optics that split the image into two identical images, and redirects each image to the respective eye,” Apple’s document notes. Transparent images come via partly reflective mirrors. The company’s designers claim the treatment of the peripheral area of the field of view reduces the chance of motion sickness.




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