US 2024/0176141 A1 · FULL COLOR OPTICAL COMBINER FOR VIRTUAL REALITY OR AUGMENTED REALITY HEADSET OR HEADS-UP DISPLAY OR SIMILAR DEVICE

Abstract

An optical combiner includes first, second, and third polarization volume holograms (PVHs) configured to deflect light of a first color, a second color, and a third color, respectively. The optical combiner further includes a first polarization interference filter (PIF) configured to switch light of the first color from a polarization that is not deflected by the first PVH to a polarization that is deflected by the first PVH. The optical combiner may further include a second PIF configured to switch light of the second color from a polarization that is not deflected by the second PVH to a polarization that is deflected by the second PVH. The optical combiner may further include a third PIF configured to switch light of the third color from a polarization that is not deflected by the third PVH to a polarization that is deflected by the third PVH.

Claims20

Dependent claims

A device comprising:

an optical combiner including:
a first polarization volume hologram (PVH) configured to deflect light of a first color;
a second PVH configured to deflect light of a second color that is different from the first color;
a third PVH configured to deflect light of a third color that is different from the first and second colors;
and
a first polarization interference filter (PIF) configured to switch light of the first color from a polarization that is not deflected by the first PVH to a polarization that is deflected by the first PVH.

3 more elements

A device comprising:

an optical combiner including:
a first polarization volume hologram (PVH) configured to deflect light of a first color and having a first polarization and configured to not deflect light of the first color and having a second polarization;
a second PVH configured to deflect light of a second color and having the first polarization and configured to not deflect light of the second color and having the second polarization;
a third PVH configured to deflect light of a third color and having the first polarization and configured to not deflect light of the third color and having the second polarization;
a first polarization interference filter (PIF) configured to switch light of the first color from the second polarization to the first polarization;
a second PIF configured to switch light of the second color from the second polarization to the first polarization;
and
a third PIF configured to switch light of the third color from the second polarization to the first polarization;
wherein:
the first PVH is disposed between the first PIF and the second PIF,
the second PVH is disposed between the second PIF and the third PIF, and
the third PIF is disposed between the second PVH and the third PVH.

9 more elements

Dependencies are inferred from the claim text.

Full color optical combiner for virtual reality or augmented reality headset or heads-up display or similar device

Life of this patent

Full color optical combiner for virtual reality or augmented reality headset or heads-up display or similar device

Life of this patent

Abstract

Claims20