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US 2026/0194751 A1Published application
Multi-directional reflective incoupler and split exit pupil expander to reduce lens size
AssigneeGoogle Inc.
InventorsDaniel Adema, Shreyas Potnis
Life of this patent
Estimating the term…
Abstract
A waveguide combiner includes an incoupler, an outcoupler, and a plurality of exit pupil expanders. The incoupler is configured to split incoming display light into multiple light beams. Each exit pupil expander of the plurality of exit pupil expanders includes one or more facets configured to receive a corresponding light beam of the multiple light beams and to output light towards the outcoupler based on the received corresponding light beam.
Claims20
A waveguide combiner comprising:
- an incoupler configured to split incoming display light into multiple light beams;
- an outcoupler;
- and
- a plurality of exit pupil expanders each exit pupil expander of the plurality of exit pupil expanders comprising one or more facets configured to receive a corresponding light beam of the multiple light beams and to output light towards the outcoupler based on the received corresponding light beam.
1 more element
A waveguide combiner comprising:
- an incoupler;
- a first exit pupil expander comprising one or more facets;
- a second exit pupil expander comprising one or more facets;
- and
- an outcoupler,
- the incoupler configured to direct display light to the first pupil exit expander;
- the first exit pupil expander configured to direct light based on the display light to the second exit pupil expander and to further direct light based on the display light to the outcoupler;
- and
- the second exit pupil expander configured to direct light to the outcoupler based on the light directed from the first exit pupil expander.
6 more elements
A near-eye display system comprising:
- an eyeglasses frame;
- an ophthalmic lens comprising a waveguide optical combiner comprising:
- an incoupler configured to split incoming display light into multiple light beams;
- an outcoupler;
- and
- a plurality of exit pupil expanders, each exit pupil expander of the plurality of exit pupil expanders comprising one or more facets configured to receive a corresponding light beam of the multiple light beams and to output light towards the outcoupler based on the received corresponding light beam;
- and
- a display source to project display light toward the incoupler.
5 more elements
Dependencies are inferred from the claim text.