Curved light guide for thin structure illumination

An electronic projector device comprising:

• a movable projector sub-assembly comprising:
• at least one processor,
• at least one memory electronically coupled to the at least one processor,
• a projector illumination source,
• a projector lens positioned to project light from the projector illumination source onto a surface, and
• a motorized positioning subsystem configured to adjust a direction of light projected by the movable projector sub-assembly;
• a light sub-assembly comprising:
• a curved light sub-assembly backing ring, and
• a plurality of light-emitting diodes (LEDs), each LED of the plurality of LEDs being coupled to the curved light sub-assembly backing ring;
• a curved light guide having an edge coupled to the light sub-assembly, the curved light guide comprising:
• a pattern of optical extraction features that distribute light from the plurality of LEDs to an exterior surface of the curved light guide, the pattern of optical extraction features positioned on the exterior surface of the curved light guide with areal density based on a local curvature of the curved light guide for uniformly distributing light from the plurality of LEDs;
• a curved reflector comprising an exterior surface coupled to an interior surface of the curved light guide, wherein the exterior surface is reflective, wherein an interior surface of the curved reflector surrounds the at least one processor and the at least one memory;
• and
• a volumetric diffuser coupled to the exterior surface of the curved light guide,
• wherein the light sub-assembly, the curved light guide, the curved reflector, and the volumetric diffuser each comprise a notch allowing the motorized positioning subsystem to reposition the projector lens about an axis parallel to a ceiling.