Preserving Real-World Finger Dexterity Using a Lightweight Fingertip Haptic Device for Virtual Dexterous Manipulation

TL;DR

This paper introduces a lightweight, wearable fingertip haptic device that provides physics-based feedback for virtual manipulation without impairing real-world finger movements, enhancing virtual dexterity and daily usability.

Contribution

The study presents a novel, ultra-light fingertip haptic device that combines minimal weight with effective physics-based feedback for virtual and real-world dexterous tasks.

Findings

Participants could perceive pressure and vibration feedback.

The device significantly improved virtual manipulation efficiency.

It preserved tactile sensations and did not hinder real-world interactions.

Abstract

This study presents a lightweight, wearable fingertip haptic device that provides physics-based haptic feedback for dexterous manipulation in virtual environments without hindering real-world interactions. The device's design utilizes thin strings and actuators attached to the fingernails, minimizing the weight (1.76g each finger) while preserving finger flexibility. Multiple types of haptic feedback are simulated by integrating the software with a physics engine. Experiments evaluate the device's performance in pressure perception, slip feedback, and typical dexterous manipulation tasks. and daily operations, while subjective assessments gather user experiences. Results demonstrate that participants can perceive and respond to pressure and vibration feedback. These limited haptic cues are crucial as they significantly enhance efficiency in virtual dexterous manipulation tasks. The device's ability to preserve tactile sensations and minimize hindrance to real-world operations is a key advantage over glove-type haptic devices. This research offers a potential solution for designing haptic interfaces that balance lightweight, haptic feedback for dexterous manipulation and daily wearability.