Curved LED Tracking Ring for VR Controller Position Accuracy
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Solution Overview
Problem
Current VR controllers lack precise and intuitive tracking of hand motions and positions, limiting the realism and naturalness of user interactions in virtual environments.
Innovation Solution
A hand-held VR controller with a curved LED tracking ring and light sources mounted on its surface, designed to be captured by an imaging device for precise tracking of position and orientation, combined with a handle made of durable materials for comfortable grip and natural gesture recognition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional tracking methods are used in VR controllers, then device complexity is reduced, but measurement precision of hand position and orientation deteriorates
Solution Approach 1:
The patent introduces an intermediary tracking ring with LED light sources that mediates between the controller and the imaging device. This ring acts as a dedicated tracking interface that enhances measurement precision without requiring complex sensors throughout the entire controller structure.
Solution Approach 2:
The tracking functionality is segmented into a separate modular ring component that can be attached to the controller. This segmentation allows the tracking system to be optimized independently from the controller's structural design, improving tracking precision while maintaining simple controller construction.
2Measurement precision
If more tracking elements are added to improve tracking precision, then measurement precision improves, but device complexity increases
Solution Approach 1:
Multiple LED light sources are merged into a single integrated tracking ring structure. This combining approach provides enhanced tracking precision through multiple light sources while avoiding the complexity of separate components, as all LEDs are embedded within one modular ring assembly.
3Measurement precision
If a ring structure with light sources is added for tracking, then measurement precision improves, but manufacturing complexity increases
Solution Approach 1:
The tracking ring is designed as a pre-assembled modular unit with LEDs already integrated into the ring structure before attachment to the controller. This preliminary assembly simplifies manufacturing by allowing the tracking component to be produced and tested independently, then easily attached to the controller body.
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
Enables precise and intuitive manipulation of virtual objects with realistic hand movements, providing enhanced user experience and 'hand presence' in virtual environments by accurately tracking hand positions and orientations.
Implementation Method 1
Light sources are mounted on the curved outer surface and configured to emit light to be captured by an imaging device
Data Source
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AI summary
A hand-held controller includes a handle extending in a longitudinal direction. The handle is shaped and dimensioned to be grasped by a user's hand. A ring is attached to an end of the handle and surrounds a thumb of the user when the handle is grasped by the user's hand. The ring has an annular surface that defines a plane that forms a predetermined angle with respect to the longitudinal direction, and a curved outer surface. Light sources are mounted on the curved outer surface and configured to emit light to be captured by an imaging device for tracking a position or orientation of the hand-held controller. The light is emitted in a direction normal to the curved outer surface.