Patent attributes
Embodiments of the disclosure describe on-head detection processes for HMD devices that include at least one lens, an optical sensor positioned in front of the lens to detect light reflected from the lens, at least one image source positioned in front of the lens, and a frame assembly to support the lens and the image source for wearing on a head of the user, wherein the frame assembly comprises a flexible frame assembly to flex such that the optical sensor moves closer to the at least one lens when the HMD is worn by the user. In some embodiments, the optical sensor is positioned to also detect a reflected light from the user's face. The light received by the optical sensor is stronger when the user is wearing the HMD, and thus embodiments determine whether the user is wearing the HMD based on the optical sensor data.
