Head-mounted device with adjustment mechanism

An adjustment assembly configured to move an optical module of a head-mounted device, comprising:

• a first adjustment stage configured to be coupled to a primary housing of the head-mounted device and configured to move the optical module laterally relative to the primary housing, wherein the first adjustment stage includes a first spring that is configured to bias the first adjustment stage to an initial position relative to the primary housing;
• a second adjustment stage coupled to the first adjustment stage and configured to move the optical module vertically relative to the first adjustment stage;
• and
• a third adjustment stage coupled to the second adjustment stage and to the optical module, the third adjustment stage configured to move the optical module longitudinally relative to the second adjustment stage.

A head-mounted device, comprising:

• a primary housing;
• an optical module;
• and
• an adjustment assembly configured to move the optical module relative to the primary housing, including:
• a first rail connected to the primary housing,
• a first carriage slidably coupled to the first rail and configured to slide along the first rail to move the optical module laterally relative to the primary;
• housing,
• a first spring slidably coupled to the first rail and positioned between the first carriage and the primary housing, the first spring configured to bias the optical module to an initial lateral position relative to the primary housing,
• a second rail connected to the first carriage,
• a second carriage slidably coupled to the second rail and configured to slide along the second rail to move the optical module vertically relative to the first carriage,
• a third rail connected to the second carriage, and
• a third carriage coupled to the optical module, slidably coupled to the third rail, and configured to move the optical module longitudinally relative to the second carriage.