Adjustable Display Optics for Dynamic Vision Correction
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Solution Overview
Problem
Users with vision corrections face suboptimal viewing experiences on various devices due to mismatched prescription needs across different display distances and devices, as standard glasses or contact lenses may not adequately correct vision for multiple viewing distances and devices.
Innovation Solution
A system with a display and adjustable optics that can alter light rays emitted by the display to match a user's prescription, using a transparent fluid with adjustable refractive index to form optics that can be adjusted based on user input, distance, and detected vision corrections, such as glasses or contact lenses, to enhance viewing clarity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard glasses or contact lenses are used for vision correction, then vision is corrected for a specific prescription, but the viewing experience is suboptimal for multiple viewing distances and devices
Solution Approach 1:
The patent implements a liquid crystal lens system where the focal length can be dynamically adjusted by changing the liquid crystal orientation through applied voltage. This allows the optical system to adapt its prescription in real-time, transitioning from a static lens to a dynamic, adjustable optical element that can accommodate multiple viewing distances and device types
Solution Approach 2:
The system changes the refractive index parameter of the liquid crystal material by applying different voltages, which directly alters the focal length of the lens. This parameter adjustment enables the same optical system to provide different prescriptions for different viewing conditions, resolving the contradiction between fixed correction and adaptive versatility
2Reliability
If separate prescription glasses are made for each device, then optimal viewing is achieved for each specific device, but the device complexity and user burden increase
Solution Approach 1:
The patent creates a universal optical system that can serve multiple devices and viewing conditions with a single adjustable lens assembly. The liquid crystal lens can be programmed to provide different prescriptions for smartphones, tablets, laptops, and televisions, eliminating the need for multiple dedicated glasses while maintaining optimal viewing quality across all devices
Solution Approach 2:
The system merges the functionality of multiple prescription glasses into a single optical device by integrating a tunable liquid crystal lens that can assume different focal lengths. This consolidation reduces the number of separate optical devices from multiple to one, while preserving the ability to optimize for each specific viewing condition
3Device complexity
If a fixed-focus display is used, then the display structure is simple, but the viewing experience deteriorates for users with different vision corrections and viewing distances
Solution Approach 1:
The patent introduces a liquid crystal lens as an intermediary optical element between the fixed-focus display and the user's eye. This mediator adjusts the light rays from the display to compensate for the user's vision correction needs, allowing the simple fixed-focus display to provide clear viewing for users with various prescriptions without requiring complex display modifications
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
The system improves user experience by dynamically adjusting optics to correct vision for each user's prescription, accommodating multiple users and automatically adjusting settings based on user identity and device usage, thereby enhancing clarity and comfort across different viewing distances and devices.
Implementation Method 1
an adjustable-prescription optics overlay; and circuitry to adjust the adjustable-prescription optics overlay to a selected prescription to alter a focus of light rays emitted by at least a portion of the display
Data Source
AI summary
A system can include a display configured to emit light rays; an adjustable-prescription optics overlay; and circuitry to adjust the adjustable-prescription optics overlay to a selected prescription to alter a focus of light rays emitted by at least a portion of the display. Various other apparatuses, systems, methods, etc., are also disclosed.