AR Eyepiece Predictive Gesture Control

The patent integrates multiple optical components (LCoS display, waveguide lens, coupling lens, wedge-shaped optic) into a compact nested structure where smaller components are positioned within or alongside larger ones. The nano-projector is embedded in the eyepiece housing, with the LCoS display positioned adjacent to the waveguide lens, and the coupling lens optically coupled between them, creating a space-efficient nested arrangement that maintains high display quality while managing device complexity.

The patent combines multiple functional elements into integrated assemblies. The waveguide lens and correction lens are optically coupled to work together as a unified optical system. The coupling lens merges the light paths from the LCoS display into the waveguide lens. The wedge-shaped optic is integrated with the correction lens to provide both waveguide coupling and optical correction functions simultaneously, reducing the number of separate components needed.

The patent implements field sequential color projection by rapidly switching between red, green, and blue LED light sources in periodic succession. Each LED emits light for a brief interval (typically milliseconds), and the LCoS display modulates the light for each color field. The human eye integrates these sequential color fields into a full-color image, achieving energy-efficient color projection without requiring all three LEDs to operate simultaneously, thus improving energy efficiency while managing device complexity.

The patent replaces traditional color wheel or filter-based color separation mechanisms with an electronic field sequential approach. Instead of mechanically rotating a color wheel or using physical filters to separate colors, the system uses electronic control to switch between LED light sources and corresponding LCoS display segments, substituting mechanical color separation with electronic timing and modulation control, thereby improving energy efficiency and reducing mechanical complexity.

The patent incorporates feedback mechanisms where the system detects user gestures through cameras or sensors, processes the gesture data to determine user intent, and provides visual feedback through the augmented reality display to confirm recognition. The system monitors gesture progression in real-time and provides intermediate feedback (such as highlighting selectable elements or showing predicted actions) to help users understand whether their gestures are being correctly interpreted, thereby improving gesture detection precision while maintaining ease of operation.

The patent implements preliminary gesture recognition where the system begins processing and interpreting gestures before they are fully completed. As the user performs a gesture, the system predicts the intended action based on the gesture's current state and provides preliminary feedback or pre-selection of expected outcomes. This allows the system to prepare for the intended action in advance, improving response time and gesture detection accuracy while making the interaction feel more natural and easier to operate.