Curved lightguides with spatial light modulators for augmented reality applications
AssigneesSwave Photonics Inc., Swave BV
InventorMichal Makowski
Life of this patent
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Abstract
Disclosed herein are curved lightguides with spatial light modulators (SLMs) for augmented reality (AR) applications and associated devices and systems. An example AR display hardware includes a lightguide having a concave outer surface and a convex outer surface (e.g., the lightguide is a curved lightguide); and an SLM attached to a portion of the lightguide, wherein the lightguide includes a first diffractive optical element (DOE) for outcoupling light incident thereon and a second DOE for outcoupling light incident thereon, the first DOE is over a portion of the concave outer surface of the lightguide, and the second DOE is over a portion of the convex outer surface of the lightguide.
Claims20
A holographic display arrangement, comprising:
- a lightguide having a concave outer surface and a convex outer surface;
- and
- a spatial light modulator (SLM) attached to a portion of the lightguide,
- wherein:
- the lightguide includes a first holographic optical element (HOE) for outcoupling light incident thereon and a second HOE for outcoupling light incident thereon,
- the first HOE is over a portion of the concave outer surface of the lightguide, and
- the second HOE is over a portion of the convex outer surface of the lightguide.
A holographic display arrangement, comprising:
- a curved lightguide having a first outer surface and a second outer surface;
- and
- a spatial light modulator (SLM) attached to a portion of the lightguide,
- wherein:
- the curved lightguide includes a transmissive diffractive optical element (DOE) over a portion of the first outer surface of the lightguide,
- the curved lightguide includes a reflective DOE over a portion of the second outer surface of the lightguide, and
- each of the transmissive DOE and the reflective DOE is configured to outcouple light incident thereon.
Augmented reality (AR) glasses, comprising:
- a lightguide having a first surface and a second surface opposite the first surface;
- a first volume hologram having a first surface on a portion of the first surface of the lightguide, and having a second surface opposite the first surface of the first volume hologram;
- and
- a second volume hologram having a first surface on a portion of the second surface of the lightguide, and having a second surface opposite the first surface of the second volume hologram,
- wherein:
- a first portion of light is incident on the first surface of the first volume hologram,
- the first volume hologram is to outcouple a portion of the first portion of light from the second surface of the first volume hologram,
- a second portion of light is incident on the first surface of the second volume hologram, and
- the second volume hologram is to outcouple a portion of the second portion of light from the first surface of the second volume hologram.
Dependencies are inferred from the claim text.