Multiple waveguide imaging structure
AssigneeMicrosoft Technology Licensing, LLC
InventorSteven John Robbins
Life of this patent
Estimating the term…
Abstract
In embodiments of a multiple waveguide imaging structure, an imaging structure includes a first waveguide for see-through viewing of an environment at a first field of view, and includes a second waveguide for see-through viewing of the environment at a second field of view. The first and second waveguides each include a polarizing beam splitter to reflect light that enters at a first polarization orientation angle in the respective first and second waveguides, and the polarizing beam splitters pass through the light that enters at a second polarization orientation angle. The imaging structure also includes a polarization switch to rotate the polarization of the light through the first and second polarization orientation angles.
Claims12
An imaging structure, comprising:
- a first waveguide configured for see-through viewing of an environment at a first field of view;
- a second waveguide configured for see-through viewing of the environment at a second field of view;
- the first and second waveguides each including a polarizing beam splitter configured to reflect light that enters at a first polarization orientation angle in the respective first and second waveguides, and the polarizing beam splitters further configured to pass through the light that enters at a second polarization orientation angle;
- and
- a polarization switch configured to cycle the polarization of the light through the first and second polarization orientation angles.
A method, comprising:
- cycling light through first and second polarization orientation angles;
- reflecting the light that enters a first waveguide at the first polarization orientation angle, the first waveguide configured for see-through viewing of an environment at a first field of view;
- passing the light that enters the first waveguide at the second polarization orientation angle through to a second waveguide configured for see-through viewing of the environment at a second field of view;
- and
- changing the light that passes through the first waveguide from the second polarization orientation angle back to the first polarization orientation angle before the light then enters the second waveguide at the first polarization angle.
An imaging structure, comprising:
- a polarization switch configured to cycle light through first and second polarization orientation angles;
- a polarizing beam splitter configured to reflect the light that enters a first waveguide at the first polarization orientation angle, the first waveguide configured for see-through viewing at a first field of view, the polarizing beam splitter further configured to pass the light that enters the first waveguide at the second polarization orientation angle through to a second waveguide configured for see-through viewing at a second field of view;
- and
- a half waveplate configured to change the light that passes through the first waveguide from the second polarization orientation angle back to the first polarization orientation angle before the light then enters the second waveguide at the first polarization angle.
Dependencies are inferred from the claim text.