Patent ID: 8675141

Claim:
An apparatus, comprising: a plurality of light sources to emit a plurality of light beams; a controller to provide a plurality of control signals to drive the plurality of light sources; a scanning platform to receive the plurality of light beams and scan the plurality of light beams in a scanning pattern to project an image; one or more alignment detectors to provide a feedback signal indicative of relative beam position information of the plurality of light beams to the controller; and an optic disposed in a beam path of the plurality of light beams prior to the scanning platform to direct a pick-off beam to the one or more alignment detectors and to transform the beam position information of the plurality of light beams into a far field for the one or more alignment detectors; wherein the controller adjusts timing of when at least one of the plurality of light sources is turned on and turned off by adjusting timing of at least one of the plurality of control signals in response to the feedback signal received from the one or more alignment detectors to maintain electronic alignment of the light beams in a far field.