Optical Systems with Adjustable Light Engines

Abstract: an electronic device, such as a head-mounted device, may include a support structure and a display system coupled to the support structure. the display system may include a light engine that emits light into a waveguide, which in turn guides the light to an eye box. to reposition the light engine relative to the waveguide, a positioner may be included in the display system. in particular, the positioner may rotate and/or laterally translate the light engine relative the waveguide. the positioner may be a fastener that moves the light engine about a pivot point, a flexure, a hinge, a curved rail, a cam and screw, a rack and pinion, or a piezoelectric actuator, as examples. multiple positioners may be used to move the light engine in multiple directions. the light engine may be moved manually or using a motor, such as in response to a sensor measurement.

Inventor(s): Dominic P. Cincione, Ali Arshad, Christopher Patton, Christopher M Scannell, Brian S. Lau, Chih Jen Chen

CPC Classification: G02B27/0176 (Head-up displays)

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