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US 12,736,799 B2Granted
Cover architectures in curved eyepiece stacks for mixed reality applications
AssigneeMagic Leap, Inc.
InventorsRyan Jason Ong, Ling Li, Chieh Chang, Sharad D. Bhagat, Christophe Peroz, Victor Kai Liu, Samarth Bhargava, Mauro Melli, Melanie Maputol West
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Abstract
Eyepieces and methods of fabricating the eyepieces are disclosed. In some embodiments, the eyepiece comprises a curved cover layer and a waveguide layer for propagating light. In some embodiments, the curved cover layer comprises an antireflective feature.
Claims20
A display system, comprising:
- a curved cover layer comprising an antireflective feature;
- a second cover layer;
- a waveguide layer between the curved cover layer and the second cover layer, wherein the waveguide layer is configured to propagate light therein;
- a projector configured to output the light for propagation in the waveguide layer;
- and
- an opening in the curved cover layer or second cover layer, the opening aligned with the projector and configured to optically couple the projector to the waveguide layer.
3 more elements
A method of fabricating an eyepiece, the method comprising:
- providing a waveguide layer having first and second opposing major surfaces, the waveguide layer configured to propagate light received from a projector;
- providing a curved cover layer facing the first opposing major surface, the curved cover layer comprising an antireflective feature;
- providing a second cover layer facing the second opposing major surface;
- and
- providing an opening in the curved cover layer or second cover layer, the opening aligned with the projector and configured to optically couple the waveguide layer to the projector.
2 more elements
A wearable head device, comprising:
- a first eyepiece;
- and
- a projector optically coupled to the first eyepiece, wherein the first eyepiece comprises:
- a curved cover layer, the curved cover layer comprising an antireflective feature;
- a second cover layer;
- a waveguide layer between the curved cover layer and the second cover layer, wherein the waveguide layer is configured to propagate light generated by the projector;
- and
- an opening in the curved cover layer or second cover layer, the opening aligned with the projector and configured to optically couple the projector to the waveguide layer.
5 more elements
Dependencies are inferred from the claim text.