AR Eyepiece Predictive Control via Gesture and Waveguide
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Solution Overview
Problem
Current augmented reality eyepieces lack effective integration of interactive controls and adaptive display technologies, limiting user interaction with virtual content and environmental awareness.
Innovation Solution
The eyepiece incorporates a nano-projector with an LCoS display, a freeform waveguide lens, and a translucent correction lens, along with an integrated processor and camera, enabling interactive control elements, gesture recognition, and adaptive display adjustments for enhanced user interaction and environmental awareness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an augmented reality eyepiece displays virtual content, then user interaction with virtual content is enabled, but user awareness of the real environment is reduced
Solution Approach 1:
The patent applies local quality by making the display lens partially transparent rather than fully opaque. This allows different regions of the user's visual field to have different properties: virtual content is displayed with sufficient brightness in certain areas while the surrounding real environment remains visible through the transparent portions of the lens, thus maintaining environmental awareness while enabling virtual content interaction
2Illumination intensity
If the display lens is made opaque to show virtual content clearly, then virtual content visibility is improved, but view of the real environment is blocked
Solution Approach 1:
The display lens is designed with spatially varying transparency properties. Certain zones of the lens have higher opacity to display virtual content with adequate contrast and brightness, while other zones maintain transparency to allow the user to see the real environment. This local differentiation of optical properties resolves the contradiction between virtual content visibility and environmental awareness
3Adaptability or versatility
If interactive control elements are added to the eyepiece, then user control capability is enhanced, but device complexity increases
Solution Approach 1:
The eyepiece integrates multiple functions into a single device: it displays virtual content, captures real environment images, recognizes gestures, and provides interactive control capabilities. By combining these diverse functions into one unified system, the patent enhances user control capability while managing overall device complexity through functional integration rather than adding separate independent components
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
This solution provides a seamless interaction with virtual content and the real environment, allowing users to control displayed content with gestures and maintain awareness of their surroundings, enhancing the overall augmented reality experience.
Implementation Method 1
a (two surface) freeform wave guide lens enabling TIR bounces
Implementation Method 2
The RGB LED module may emit field sequential color, wherein the different colored LEDs are turned on in rapid succession to form a color image that is reflected off the LCoS display
Data Source
AI summary
This disclosure concerns an interactive head-mounted eyepiece with an integrated processor for handling content for display and an integrated image source for introducing the content to an optical assembly through which the user views a surrounding environment and the displayed content, wherein the eyepiece includes predictive control of external device based on an event input.