FEEL TECHWear : Enhancing Mixed Reality Experience with Wrist to Finger Haptic

FEEL TECH Wear is a system that facilitates haptic interactions while keeping most of the palm free, by presenting directional force through rotational skin-stretch distribution feedback to the wrist and providing texture sensation through vibration feedback to the fingertips. With advancements in hand tracking and passthrough technologies, hand interactions in Mixed Reality (MR) environments have become more accessible, necessitating palm-free haptic feedback methods that do not hinder interactions with real objects or impair vision-based hand tracking. The hardware of FEEL TECH Wear primarily consists of two components: a hand-mounted device for each hand and a control unit located at the back of the head. The hand-mounted device is equipped with four channels of rotational skin-stretch tactors at the wrist and vibration tactors at the thumb and index finger. Using FEEL TECH Wear, three applications have been realized: haptic feedback for virtual objects, haptic augmentation for real objects, and haptic guidance towards objects.