US Patent 11635198 Head wearable devices and methods

A head wearable device includes a headband, a housing attached to the headband, a luminaire, a duct system connecting the luminaire to the housing, a ball joint movably connecting the duct system to the luminaire, and an air moving device, which is adjacent to an exhaust of the housing and is configured to induce an air flow through an inlet in the luminaire through the ball joint, through the duct system, and out of the exhaust of the housing attached to the headband.