Magic Leap has patented a display system that projects virtual image content to a user’s eye with varying divergence and collimation. The system includes an inward-facing imaging system to estimate the center of rotation of the user’s eye for accurate rendering. GlobalData’s report on Magic Leap gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Magic Leap, Smart glasses was a key innovation area identified from patents. Magic Leap's grant share as of January 2024 was 51%. Grant share is based on the ratio of number of grants to total number of patents.

Head-mounted display system projecting virtual images based on eye position

Source: United States Patent and Trademark Office (USPTO). Credit: Magic Leap Inc

A recently granted patent (Publication Number: US11883104B2) describes a display system designed to project light into a user's eye to display virtual image content in their field of vision. The system includes a frame worn on the user's head, a head-mounted display that projects virtual images, and an inward-facing imaging system to track the user's eye movements. The processing electronics analyze images of the user's eye to estimate the three-dimensional position of the center of rotation (CoR) of the eye. This estimation involves determining potential CoR positions based on the corneal sphere's center, calculating variations for each potential position, and selecting the position with the lowest variation.

Furthermore, the patent details a method implemented by the display system to display virtual image content, track eye movements, and estimate the CoR's three-dimensional position based on images captured by the inward-facing imaging system. The method involves determining potential CoR positions, calculating variations, and selecting the position with the lowest variation. Additionally, the method includes determining an estimate of the corneal sphere and performing the CoR estimation during an initial user calibration session. The patent also covers non-transitory computer storage media storing instructions for the display system to execute these functions, emphasizing the importance of accurately estimating the CoR for an optimal user experience.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.