Head-worn Computer Controller Tracking with Light Emitters
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Solution Overview
Problem
Current head-worn computer systems face challenges in optimizing user experience through see-through displays, requiring improved methods and systems for presenting content while maintaining a clear view of the environment and providing digital overlays effectively.
Innovation Solution
The development of advanced user interface systems for head-worn computing that incorporate contextual awareness, including sensors for environmental conditions and user gestures, allowing for adaptive control and interaction with external devices, and the use of optical modules with combiner elements like holographic and notch mirrors to provide clear see-through views while overlaying digital content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If see-through display is used to maintain clear environmental view, then transparency is improved, but digital content visibility deteriorates
Solution Approach 1:
The display alternates between showing digital content and allowing environmental view by controlling the light emitter activation cycles, creating periodic visibility patterns that serve both transparency and content display needs
Solution Approach 2:
The system dynamically adjusts the properties of the light emitter (intensity, wavelength, duration) based on environmental conditions and user interaction requirements, optimizing the balance between see-through capability and digital content visibility
2Measurement precision
If light emitter is activated for controller tracking, then tracking precision is improved, but environmental visibility deteriorates
Solution Approach 1:
The light emitter is directed specifically at the controller device rather than illuminating the entire field of view, concentrating tracking functionality in a localized area while preserving overall environmental visibility
Solution Approach 2:
The light emitter operates in periodic pulses synchronized with controller movement detection cycles, providing tracking illumination only when needed for measurement rather than continuous activation
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 user experience by enabling seamless integration of digital and real-world views, improving immersion and interaction through adaptive control and clear optical configurations, allowing for efficient control of head-worn computer systems and external devices.
Implementation Method 1
A head-worn computer (HWC) may include a light emitter, such as a laser, that is activated to emit light in a direction corresponding to a predicted location of an external controller
Data Source
AI summary
A head-worn computer includes a camera system positioned to capture a surrounding environment in front of a user, a processor that identifies a position of a plurality of light emitters mounted on a hand-held controller from images captured by the camera system and tracks the position of the plurality of light emitters as the hand-held controller moves in the surrounding environment and interprets the tracked position as positional changes of the hand-held controller. The processor uses the position of the plurality of light emitters as markers in three dimensional space, the markers used as an anchor for virtual content presented in a see-through display of the head-worn computer.