Interpupillary distance adjustment mechanism for a compact head-mounted display system

摘要

A head-mounted display (HMD) system includes an optical arrangement; at least one moveable image panel, wherein the optical arrangement directs image light from the moveable image panel along a first optical pathway; a fixed image panel, wherein a portion of image light emitted from the fixed image panel is combined with image light of the at least one moveable image panel by the optical arrangement; and an adjustment mechanism that is configured to adjust an interpupillary distance (IPD) of the HMD system by moving the optical arrangement and the moveable image panel relative to the fixed image panel between a first position and a second position corresponding to different IPDs. The adjustment to the IPD maintains the first optical pathway. The HMD system further may include a sensing module that measures an adjustment position of the optical arrangement, and control electronics configured that determines the IPD based on the measured adjustment position, and updates image light emitted by the fixed image panel based on the IPD.