Virtual and augmented reality systems and methods
AssigneeMagic Leap, Inc.
InventorBrian T. Schowengerdt
Life of this patent
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Abstract
A method for displaying virtual content to a user, the method includes determining an accommodation of the user's eyes. The method also includes delivering, through a first waveguide of a stack of waveguides, light rays having a first wavefront curvature based at least in part on the determined accommodation, wherein the first wavefront curvature corresponds to a focal distance of the determined accommodation. The method further includes delivering, through a second waveguide of the stack of waveguides, light rays having a second wavefront curvature, the second wavefront curvature associated with a predetermined margin of the focal distance of the determined accommodation.
Claims20
A system to provide at least one of a virtual or an augmented reality experience to a user, the system comprising:
- a frame;
- and
- a display system comprising a waveguide having a thicker portion, a thinner portion, and a variable thickness that decreases in thickness along a length of the waveguide from the thicker portion to the thinner portion;
- and
- a light source configured to direct light toward an entrance portion of the waveguide in the thicker portion of the waveguide, wherein the light enters the waveguide at entrance portion at the thicker portion, propagates via total internal reflection along the length of the waveguide toward the thinner portion, and exits the waveguide at the thinner portion toward an eye of the user, and
- wherein the display system is carried by the frame and positionable in front of the eye of the user when the frame is worn by the user.
A method for displaying virtual content to a user, comprising:
- a light source directing light toward a display system, wherein the display system comprises a waveguide, the waveguide having
- a thicker portion and a thinner portion, and
- a variable thickness that decreases in thickness along a length of the waveguide from the thicker portion to the thinner portion;
- and
- allowing the light to
- enter the waveguide at defined angles via an entrance portion of the thicker portion of the waveguide,
- propagate along the length of the waveguide via total internal reflection toward the thinner portion, and
- exit the waveguide at the thinner portion.
Dependencies are inferred from the claim text.