Patent ID: 11892130
Assignee: 10644137 CANADA INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC F  G  H  A  Y | IPC A  F  G  H

Claim 6:
7. A light-emitting apparatus comprising:
a light-emitting layer for emitting light towards a source field of view (FOV); and
at least one metasurface layer in front of the light-emitting layer for directing the light emitted from the light-emitting layer towards a first FOV having an angular span smaller than that of the source FOV; and
a polarization-control layer sandwiched between the light-emitting layer and the at least one optical-transformation layer;
wherein the polarization-control layer is configured for, in response to a control signal, polarizing the light emitted from the light-emitting layer to a first polarization state or to a second polarization state; and
wherein the at least one optical-transformation layer is configured for directing the light from the polarization-control layer in the first polarization state towards a first FOV having an angular span smaller than that of the source FOV, and directing the light from the polarization-control layer in the second polarization state towards a second FOV having an angular span greater than that of the first FOV.