US Patent 10353221 Audio eyeglasses with cable-through hinge and related flexible printed circuit

Various aspects include audio eyeglasses with through-hinge wiring configurations. In particular aspects, audio eyeglasses include: a frame for resting on a head of a user, the frame having: a lens region; a pair of arms extending from the lens region; and a hinge coupling the lens region and one of the pair of arms, the hinge including: a body; and a cavity within the body, the cavity sized to accommodate a cable extending therethrough, the hinge permitting movement of the arm relative to the lens region; and an electro-acoustic transducer at least partially housed in the frame and having a sound-radiating surface for providing an audio output.