Patent ID: 11947110
Assignee: AKONIA HOLOGRAPHICS LLC
Field: Optics (Instruments)
Classification: CPC G | IPC F  G

Claim 15:
16. An optical system comprising:
a waveguide having a first substrate with a first surface and a second surface opposite the first surface, having a second substrate with a third surface and a fourth surface opposite the third surface, and having a grating medium sandwiched between the first and second substrates, wherein the first surface extends parallel to the second and third surfaces and the grating medium contacts the second surface;
a prism having a first wedge mounted to the second surface of the substrate and having a second wedge mounted to the first wedge, wherein the prism is configured to direct light through the first and second wedges and into the waveguide; and
a holographic coupler in the grating medium and configured to diffract the light directed into the waveguide by the prism.