Varying a focus through a variable focus element based on user accommodation
AssigneeMagic Leap, Inc.
InventorBrian T. Schowengerdt
Life of this patent
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Abstract
Configurations are disclosed for presenting virtual reality and augmented reality experiences to users. The system may comprise an image-generating source to provide one or more frames of image data in a time-sequential manner, a light modulator configured to transmit light associated with the one or more frames of image data, a substrate to direct image information to a user's eye, wherein the substrate houses a plurality of reflectors, a first reflector of the plurality of reflectors to reflect transmitted light associated with a first frame of image data at a first angle to the user's eye, and a second reflector to reflect transmitted light associated with a second frame of the image data at a second angle to the user's eye.
Claims18
A system for displaying virtual content to a user, comprising:
- an accommodation tracking module to determine an accommodation of the user's eye;
- an image-generating source to provide one or more frames of image data in a time-sequential manner;
- a light generator to project light associated with the one or more frames of image data;
- a plurality of waveguides to receive light rays associated with image data and to transmit the light rays toward the user's eye;
- a first variable focus element (VFE) adjacent one side of the plurality of waveguides to vary a focus of the transmitted light based at least in part on the determined accommodation of the user's eye;
- a second VFE adjacent an opposite side of the plurality of waveguides to compensate to cancel out optical effects of the first VFE for light rays traveling from the real world through the at least one waveguide towards the user's eye;
- at least one lens respectively disposed between at least one respective pair of the plurality of waveguides,
- wherein each of the at least one lens has a static focal distance, and
- wherein the at least one lens causes the plurality of waveguides to simultaneously create a plurality of different focal planes of wavefronts.
Dependencies are inferred from the claim text.