Optical assemblies, head-mounted displays, and related methods
AssigneeMeta Platforms Technologies, LLC
InventorsRandall Scott Toy, James Schultz, Zhiqiang Liu, Jilin Yang
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Abstract
Optical assemblies may include a projector assembly, a waveguide, and at least two standoffs. The projector assembly may include at least one light projector and a housing. The waveguide may include at least one input grating corresponding to the at least one light projector. The standoffs may be between the housing and the waveguide, and may be configured for aligning the at least one light projector with the at least one input grating. Related head-mounted displays, systems, and methods are also disclosed.
Claims20
An optical assembly, comprising:
- a projector assembly including at least one light projector and a housing;
- a waveguide configured for redirecting light from the at least one light projector, the waveguide including at least one input grating corresponding to the at least one light projector;
- and
- at least two standoffs between the housing and the waveguide, wherein the at least two standoffs are configured for aligning the at least one light projector with the at least one input grating.
A head-mounted display, comprising:
- an optical assembly, comprising:
- a projector assembly including at least one light projector and a housing;
- a waveguide configured for redirecting light from the at least one light projector to a position in front of a user's eyes, the waveguide including at least one input grating corresponding to the at least one light projector;
- and
- standoffs between the housing and the waveguide, wherein the standoffs are configured for optically aligning the at least one light projector with the at least one input grating;
- and
- a frame configured for mounting the optical assembly on a head of the user with at least a portion of the waveguide in front of the eyes of the user.
A method of fabricating an optical assembly, the method comprising:
- determining a position and orientation of a projector assembly relative to a waveguide to optically align the projector assembly with the waveguide;
- removing at least a portion of a standoff of a plurality of standoffs extending from the projector assembly to achieve the determined position and orientation of the projector assembly relative to the waveguide when the standoffs are used to mount the projector assembly to the waveguide;
- and
- mounting the projector assembly to the waveguide using the plurality of standoffs to maintain the determined position and orientation.
Dependencies are inferred from the claim text.