Dynamic Focus Plane Adjustment in AR Head-Mounted Displays

The patent applies the dynamics principle by transitioning from a fixed focus plane to a dynamically adjustable focus plane. The focus adjuster modifies the optical path in real-time based on the depth of displayed objects, allowing the focus plane to move dynamically. This resolves the contradiction by introducing controlled complexity that eliminates visual vergence accommodation conflict, thereby improving user visual comfort while maintaining reasonable device complexity.

The patent implements dynamics by making the focus plane adjustable rather than fixed. The focus adjuster dynamically modifies the optical path based on object depth information, enabling the visual adjustment function to work effectively. This allows the system to maintain simplicity when possible while activating adjustment capabilities when needed, resolving the contradiction between structural simplicity and functional reliability.

The patent applies the intermediary principle by introducing a focus adjuster as a mediating component between the display and the user's eye. This intermediary device modifies the optical path based on depth information from an eye-ball tracker, enabling dynamic focus adjustment. The focus adjuster acts as a bridge that translates depth information into optical adjustments, improving user comfort while containing complexity through modular design.