Patent ID: 11860367
Assignee: AVEGANT CORP.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 19:
20. A display system for augmented head mounted device (HMD) comprising:
an arm;
a lens having a base angle and a pantoscopic tilt;
a waveguide on the lens, the waveguide having an out-coupler for displaying augmented reality images;
a display engine and optics to generate an image, an output of the optics having an optical axis;
a prism to direct the output from the optics to an in-coupler of the waveguide, at an altered angle from the optical axis, such that the image out-coupled by the out-coupler is at a correct angle for display, the prism designed to alter the angle of the image by a compound angle based on the base angle, the pantoscopic tilt, and the optical axis.