US Patent 8743464 Waveguide with embedded mirrors

A waveguide with embedded mirrors includes an in-coupling region for receiving input light into the waveguide and an out-coupling region for emitting output light from the waveguide. The mirrors include a plurality of in-coupling mirrors disposed within the in-coupling region of the waveguide and orientated to reflect the input light down the waveguide towards the out-coupling region as guided light. The mirrors further include a plurality of out-coupling mirrors disposed within the out-coupling region of the waveguide and orientated to reflect the guided light out of the waveguide as the output light.