Adjustable Lens Focusing Length for VR Vision Health
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Solution Overview
Problem
The increasing prevalence of nearsightedness among users of Virtual Reality (VR) and Augmented Reality (AR) devices due to prolonged focus on near distances and fixed focus states, which can lead to chronic vision problems if not addressed.
Innovation Solution
A method and system that adjust the focusing length by changing the optical properties of a lens, such as its location or curvature, based on vision setting information to exercise the ciliary muscles and crystalline lens, using a system that includes a display controlling unit and a focusing length controlling unit to adjust the lens position or curvature while content is being displayed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the focusing length is fixed during VR/AR content consumption, then the display quality and user experience are maintained, but vision loss and chronic nearsightedness occur due to prolonged near focus
Solution Approach 1:
The patent applies the dynamics principle by making the focusing length adjustable rather than fixed. The system dynamically changes the focusing length between near and far positions based on usage duration, allowing the lens to transition from a fixed state to a variable state that adapts to prevent vision degradation while maintaining display quality.
Solution Approach 2:
The patent implements periodic action by automatically adjusting the focusing length at predetermined time intervals during VR/AR content consumption. The system periodically switches between near and far focusing states to prevent prolonged near focus, thereby reducing the risk of vision loss and chronic nearsightedness.
2Reliability
If the focusing length is adjusted frequently to exercise ciliary muscles, then vision is enhanced and nearsightedness is prevented, but the display stability and user comfort may be affected
Solution Approach 1:
The patent uses periodic action to adjust focusing length at predetermined time intervals rather than continuously. This periodic adjustment exercises the ciliary muscles to prevent nearsightedness while maintaining display stability during each interval, balancing vision enhancement with display consistency.
Solution Approach 2:
The system incorporates feedback mechanisms to monitor usage duration and automatically trigger focusing length adjustments. By using feedback from usage time data, the system can maintain display stability while periodically exercising the eyes, preventing vision degradation without causing discomfort or instability.
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 approach helps prevent or decrease vision loss and enhance vision by periodically relaxing or contracting the ciliary muscles, effectively addressing nearsightedness, farsightedness, and astigmatism by simulating long or short distance focus during VR/AR content consumption.
Implementation Method 1
adjusting a focusing length from a lens to a virtual surface where eyes of a user are located by changing at least one optical property of the lens
Data Source
AI summary
A method and system for adjusting focusing length to enhance vision of a user. A method for adjusting focusing length includes controlling an object to be displayed and adjusting a focusing length indicating distance to a lens from a virtual surface where eyes of user are located by changing at least one optical property of then lens based on vision setting information while an object is displayed.