Stacked LOE Waveguide Layout for Wider Near-Eye Field of View

The patent divides the single light-guide into multiple stacked waveguides (first waveguide, second waveguide, third waveguide), each handling different portions of the image field. This segmentation allows each waveguide to transmit specific angular ranges independently, overcoming the FoV limitation of a single light-guide while maintaining image transmission quality through coordinated operation.

The patent transitions from a single-dimensional light-guide to a multi-dimensional stacked waveguide structure. By adding the vertical stacking dimension, the system can transmit images with wider field-of-view without compromising transmission quality, as each waveguide layer handles different angular portions of the image.

The patent segments the angular range transmission across multiple stacked waveguides. Even though each individual waveguide uses low-refractive-index materials with limited angular range, the collective system achieves wider angular coverage by distributing different angular portions across the stacked layers, maintaining ease of manufacture while expanding functional capability.

The patent merges multiple waveguides into a stacked configuration where each waveguide contributes to the overall angular range transmission. The combination of multiple waveguides with individual angular ranges produces a composite system with expanded angular coverage, reconciling manufacturing ease with functional performance.

The patent segments the optical path across multiple thin waveguides stacked vertically, rather than using a single heavy geometric structure. This segmentation achieves wide field-of-view through the collective action of lightweight waveguide layers, significantly reducing device weight compared to traditional geometric boundary solutions.

The patent changes the optical parameters by using stacked waveguides with specific refractive index relationships and aperture expander configurations. This parameter optimization achieves wide field-of-view without increasing device weight, as the solution relies on optical parameter management rather than heavy geometric structures.

The patent designs the stacked waveguide system where each waveguide performs multiple functions: receiving image portions, expanding beams in specific dimensions, and transmitting to adjacent waveguides. The aperture expanders serve dual purposes of beam expansion and angular range management. This multi-functionality reduces the need for separate components, managing system complexity while achieving wide field-of-view.

The patent implements a nested structure where waveguides are stacked vertically with aperture expanders positioned within or between the waveguide layers. This nested arrangement achieves multi-dimensional beam expansion in a compact configuration, managing device complexity through hierarchical organization of functional elements.