Space, time and angular multiplexed dynamic image transfer for augmented reality display
AssigneeArizona Board of Regents on Behalf of the University of Arizona
InventorsYuzuru Takashima, Brandon Hellman
Life of this patent
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Abstract
A design and implementation of a new optical architecture: space, time, and angular division multiplexed image transfer by Digital Micromirror Device. The method, like various multiplexing methods employed in communication engineering, enables image transfer via an angular band-limited data channel such as an optical image guide by dynamically redistributing a signal into multiple domains such as space, time, angle, wavelength, and polarization.
Claims17
An optical projection system, comprising:
- a light source configured to emit modulated light;
- a digital mirror device positioned relative to the light source such that the digital mirror device is configured to receive the modulated light emitted from the light source;
- wherein the digital mirror device splits the modulated light into doubly modulated light by at least two of angular, spatial, and temporal modulation;
- a catadioptric optical sub-system comprising a beam splitter configured to receive the doubly modulated light and convert the doubly modulated light into one or more plane waves.
A method for generating augmented reality displays, comprising the steps of:
- illuminating a modulator with modulated light by at least two of angular, spatial, and temporal modulation, resulting in doubly modulated light;
- capturing the doubly modulated light at an optical system comprising a beam splitter;
- and
- converting, via the optical system, the doubly modulated light into one or more plane waves.
An optical projection system, comprising:
- an angular spatial light modulator configured to modulate light in angle and space over time at a single plane to create multiple spatial patterns of light and emit the light into respective multiple directions;
- a set of two or more image guides, each image guide having an input and an output;
- an optical system positioned to receive the emitted light and configured to direct the emitted light of each of the multiple directions into respective image guides;
- wherein the light propagates through the image guides, and each image guide output is configured to output the light at different angles.
Dependencies are inferred from the claim text.