Haptic Gloves for Virtual Reality Tactile Feedback
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Solution Overview
Problem
Current head-mounted displays (HMDs) lack the capability to effectively simulate physical interactions with virtual objects, failing to provide realistic tactile feedback and textures in virtual environments.
Innovation Solution
A system comprising a haptic device and a haptic feedback controller that can be integrated into articles of clothing or the HMD itself, using various actuators to simulate textures, pressures, and movements, allowing users to feel virtual objects through dynamic adjustments and feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If HMD is used to present virtual environments, then visual immersion is improved, but tactile feedback capability deteriorates
Solution Approach 1:
The patent combines visual display (HMD) and tactile feedback (haptic devices) into a single integrated system. The HMD presents visual virtual environments while haptic devices simultaneously provide tactile feedback corresponding to virtual object interactions, merging two separate sensory modalities into one unified immersive experience.
Solution Approach 2:
The haptic feedback controller acts as an intermediary between the virtual environment rendering and the haptic device actuation. It receives interaction data from the virtual environment and translates it into appropriate haptic feedback signals, mediating between the digital virtual world and the physical tactile sensation.
2Reliability
If haptic devices are added to provide tactile feedback, then interaction realism is improved, but device complexity increases
Solution Approach 1:
The haptic feedback controller serves multiple functions: it processes interaction data from the virtual environment, determines appropriate haptic feedback parameters, and controls multiple haptic devices. This multi-functionality reduces the need for separate dedicated controllers for each haptic device, simplifying the overall system architecture.
Solution Approach 2:
The system dynamically adjusts haptic feedback parameters (intensity, frequency, duration) based on virtual object properties and user interactions. By changing parameters rather than requiring different hardware configurations for different interaction types, the system maintains simplicity while achieving diverse tactile feedback effects.
3Measurement precision
If multiple haptic actuators are used to simulate different textures and movements, then tactile fidelity is improved, but energy consumption increases
Solution Approach 1:
The haptic feedback system operates periodically based on user interactions with virtual objects rather than continuously. Haptic actuators are activated only when interaction events occur (e.g., touching, grasping, manipulating virtual objects), reducing energy consumption compared to continuous operation while maintaining tactile fidelity during interaction moments.
Solution Approach 2:
The system applies haptic feedback selectively to specific fingers or hand regions based on which virtual objects are being interacted with, rather than activating all haptic actuators simultaneously. This partial action approach maintains tactile fidelity for relevant interactions while minimizing overall energy consumption.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances the immersive experience by providing realistic tactile feedback, allowing users to interact with virtual objects in a more physically engaging manner, simulating textures, pressures, and movements with high fidelity.
Implementation Method 1
The haptic device can include one or more of a compressed gas, a liquid, an electric motor, a linear motor, an electromagnet, a piezo-electric device
Implementation Method 2
The haptic device can include one or more of a compressed gas, a liquid, an electric motor, a linear motor, an electromagnet
Implementation Method 3
The haptic device can include one or more of a compressed gas, a liquid, an electric motor, a linear motor, an electromagnet, a piezo-electric device, a heating element, a cooling element
Data Source
AI summary
A system and method of using a peripheral device for interfacing with a virtual reality scene generated by a computer for presentation on a head mounted display. The peripheral device includes a haptic device capable of being placed in contact with a user and a haptic feedback controller for processing instructions for outputting a haptic signal to the haptic device. The haptic feedback controller receiving the instructions from the computer so that haptic feedback of the haptic device changes to correspond to a user's virtual interactions with a virtual object in the virtual reality scene as presented on the head mounted display.