Mechanism for head mounted display that simultaneously adjusts diopter and interpupillary distances using a single knob assembly

Abstract

A head-mounted display apparatus is disclosed which including a main frame arranged with left and right display screens, left and right eyepieces arranged in correspondence with the left and right display screen. The main frame is further arranged with a diopter and interpupillary distance adjustment mechanism for adjusting a distance between the display screens and the eyepieces and a distance between two eyepieces at each side. The diopter and interpupillary distance adjustment mechanism employs a rotation operation and a sliding operation of a same knob assembly for achieving adjustments of a diopter and an interpupillary distance of the head-mounted display apparatus. That is, not only the operation is easier, but also the product structure is simplified, so that the head-mounted display apparatus has a more compact structure, lighter weight and more comfortable and convenient use.