Patent ID: 11921289
Assignee: VUZIX CORPORATION
Field: Optics (Instruments)
Classification: CPC G  H | IPC F  G  H

Claim 19:
20. A personal display device for displaying virtual images to a wearer, comprising:
a frame having a right temple section, a left temple section, a right rear section, a left rear section, a right eye see-through section, and a left eye see-through section;
a projection display device connected to the frame operable to project image-bearing light beams;
at least one waveguide stack module connected to the frame, the at least one waveguide stack module operable to propagate image-bearing light beams along a length of the at least one waveguide stack module, the at least one waveguide stack module being configured to receive the image-bearing light beams from the projection display device, the at least one waveguide stack module including:
an in-coupling diffractive optic formed along the at least one waveguide stack module operable to diffract at least a portion of the image-bearing light beams from the projection display device into the at least one waveguide stack module in an angularly encoded form; and
an out-coupling diffractive optic spaced apart from the in-coupling diffractive optic along the length of the at least one waveguide stack module operable to diffract at least a portion of the image-bearing light beams from the at least one waveguide stack module in an angularly decoded form for viewing the image-bearing light beams from the projection display device;

a left hinge system positioned between the left temple section and the left rear section of the frame; and
a right hinge system positioned between the right temple section and the right rear section of the frame,
wherein at least the left or right hinge system includes a flex cable connected to a battery and arranged through a hinge.