Multiple waveguide imaging structure

A wearable display device, comprising:

• left and right display lens systems configured for augmented reality imaging;
• left and right imaging units of the respective left and right display lens systems configured to generate an augmented reality image that includes a virtual image;
• each of the left and right imaging units 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.

A method to combine fields of view for a wider field of view in a wearable display device, the method comprising:

• generating an augmented reality image that includes a virtual image with left and right imaging units of the wearable display device, each of the left and right imaging units performing:
• 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 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 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.