Wearable Heads Up Displays
AssigneeDigiLens Inc.
InventorsJonathan David Waldern, Milan Momcilo Popovich, Alastair John Grant
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Abstract
An optical display, including a first waveguide having a first set of surfaces, an input grating, a fold grating, and an output grating; an image input image node assembly; and a prismatic relay optics is provided. The prismatic relay optics may be configured to be optomechanically connected to the waveguide and the input image node assembly. The optical display is may also be configured to operate alone or as integrated with a headpiece to be used as a HUD. The HUD may have a first and a second configuration wherein the waveguide is decoupled or coupled.
Claims21
A waveguide display comprising:
- an input image node (IIN) providing light of a first wavelength over an angular range;
- a first waveguide comprising at least one input grating configured to couple light from the IIN into a total internal reflection (TIR) path in the first waveguide;
- at least one grating for providing beam expansion in at least one direction and extracting light from the first waveguide;
- and
- wherein a spatially varying numerical aperture for providing uniform illumination at an eyebox of the waveguide display is provided by tilting a stop plane containing an IIN exit pupil relative to an input grating plane containing the at least one input grating of the first waveguide.
Dependencies are inferred from the claim text.