Electronic device

A wearable device comprising:

• a frame;
• and
• a pair of securement arms extending from the frame, each securement arm of the pair of securement arms comprising:
• a plurality of arm segments comprising a proximal arm segment coupled to the frame, a distal arm segment, and an intermediate arm segment between the proximal arm segment and the distal arm segment;
• and
• a plurality of joints interconnecting the plurality of arm segments, wherein each joint of the plurality of joints comprises:
• adjacent first and second arm segments of the plurality of arm segments;
• and
• a biasing member configured to provide a biasing force resisting a relative movement between the adjacent first and second arm segments, wherein the biasing member comprises an elastomer cord extending along the plurality of arm segments.

An electronic device comprising:

• a viewing frame;
• an optically transparent window secured to the viewing frame;
• a projector secured to the viewing frame;
• an optical waveguide configured to direct light from the projector and displayed at the optically transparent window;
• and
• a securement arm extending from the viewing frame, the securement arm comprising:
• a plurality of arm segments including a first arm segment, a second arm segment, and a third arm segment;
• and
• a plurality of joints interconnecting the plurality of arm segments, wherein each joint of the plurality of joints comprises:
• adjacent arm segments of the plurality of arm segments;
• and
• a biasing member configured to resist an outward rotation of one of the plurality of arm segments away from the viewing frame, wherein the biasing member comprises a shape memory material.