Deformable Eyewear Frame for Automatic Near-Far Vision Switching
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Solution Overview
Problem
Conventional bifocal lenses restrict users to specific portions for near and distance vision correction, limiting convenience and adaptability.
Innovation Solution
A head-mounted wearable device with a deformable frame and microcontroller that adjusts lens contours based on interpupillary distance, allowing seamless transition between near and distance vision modes without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If bifocal lenses with separate sections are used, then both near and distance vision correction are provided, but the user is restricted to specific portions of the lens for each vision mode
Solution Approach 1:
The patent employs a deformable lens that can dynamically change its optical power distribution based on user needs. The lens transitions between different focal states, allowing the entire lens surface to be utilized for both near and distance vision correction, unlike static bifocal lenses with fixed segmentation.
Solution Approach 2:
The optical parameters of the lens (specifically focal length and optical power) are made variable through deformation. By changing the physical state of the lens material or structure, the lens can adjust its refractive properties to provide appropriate correction for different viewing distances across the entire lens surface.
2Adaptability or versatility
If conventional bifocal lenses are used, then vision correction for multiple distances is achieved, but the device complexity increases due to separate correction sections
Solution Approach 1:
The deformable lens serves multiple functions with a single unified structure. Instead of having separate optical zones for near and distance vision, the entire lens surface can be configured for different viewing distances, eliminating the need for complex segmented designs while achieving multi-distance correction.
Solution Approach 2:
The lens structure is designed to be dynamically reconfigurable, allowing it to transition between different optical states. This dynamic capability enables a single simple lens structure to replace complex multi-section bifocal designs, reducing overall device complexity while maintaining adaptability.
3Ease of operation
If the frame transitions between states automatically, then user convenience is improved, but the control system complexity increases
Solution Approach 1:
The system incorporates sensors that automatically detect user needs (such as gaze direction or object distance) and trigger appropriate lens deformation without requiring manual input. The device serves itself by monitoring environmental cues and autonomously adjusting the optical configuration to match the user's visual requirements.
Solution Approach 2:
The control system uses feedback from sensors (such as eye tracking or distance detection) to automatically adjust the lens state. This closed-loop control enables convenient automatic mode switching while managing system complexity through intelligent sensor-based decision-making rather than complex mechanical switches.
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
Provides adaptable vision correction by automatically switching between near and distance vision modes, enhancing user convenience and flexibility.
Implementation Method 1
a deformable inner frame; and a microcontroller coupled to the frame, The microcontroller may be configured to apply a stimulus to the deformable inner frame
Data Source
AI summary
Systems and methods for changing a shape of a lens portion of ophthalmic eyewear are provided. A microcontroller may apply a voltage to a deformable inner frame portion of a frame of the eyewear, causing deformation of the deformable inner frame. Rim portions of the frame may deform together with the deformable inner frame, causing a shape, or contour, of lenses coupled in the rim portions to change. The change in shape, or contour of the lenses may provide for a variation in vision correction, and transition between near distance vision correction and far distance vision correction. The application of voltage may be triggered by a change in interpupillary distance detected in data collected by a gaze tracking device coupled to the frame.