VR Lens Tint Recommendation Using Eye-Tracked Glare Sensitivity
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Solution Overview
Problem
Traditional visual assessment methods are limited to professional settings and lack dynamic adjustment of test parameters, making them less accurate and inaccessible for home use with household devices.
Innovation Solution
Implementing a virtual reality system using a head-mounted display and eye-tracking sensors to conduct interactive vision tests, simulating various lighting and glare conditions, and evaluating user responses to recommend customized lens tints and eyewear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional visual assessment methods are used in professional settings with fixed parameters, then reliability of assessment is maintained, but adaptability to different conditions and accessibility for home use deteriorates
Solution Approach 1:
The patent implements dynamic adjustment of test parameters including visual stimulus characteristics (brightness, contrast, size, duration) and timing intervals based on real-time eye-tracking data and user responses. This allows the system to adapt to individual user needs while maintaining assessment reliability through algorithmic control of parameter changes.
Solution Approach 2:
The system systematically varies multiple parameters including stimulus brightness levels, contrast ratios, presentation duration, and inter-stimulus intervals to comprehensively assess different aspects of visual function. These parameter changes enable versatile testing while reliability is maintained through standardized protocols and normative comparisons.
2Ease of operation
If traditional visual assessment methods are used with standardized procedures, then reliability is maintained, but accessibility for home use with household devices deteriorates
Solution Approach 1:
The system automatically guides users through the assessment process with on-screen instructions, real-time feedback, and adaptive stimulus presentation. Eye-tracking technology automatically captures and analyzes eye movements without user intervention, enabling reliable home-based assessment while maintaining ease of operation.
Solution Approach 2:
The system provides real-time feedback to users during testing and automatic analysis of eye-tracking data to generate comprehensive assessment reports. This feedback mechanism ensures reliability by objectively measuring visual responses while maintaining accessibility through user-friendly interfaces.
3Measurement precision
If fixed test parameters are used in traditional methods, then ease of operation is maintained, but measurement precision and accuracy deteriorate
Solution Approach 1:
The patent replaces manual administration and scoring of visual assessments with automated eye-tracking technology and computer-based stimulus presentation. This substitution enables precise measurement of eye movements and visual responses while the software manages system complexity, making high-precision assessment accessible.
4Measurement precision
If comprehensive vision testing is conducted with multiple parameters, then measurement precision improves, but device complexity increases
Solution Approach 1:
The system uses a single head-mounted display device with integrated eye-tracking sensors to perform multiple vision assessment functions including visual acuity, contrast sensitivity, glare sensitivity, and color vision testing. This multi-functional approach achieves comprehensive measurement precision while consolidating device complexity into one integrated platform.
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
Enables comprehensive and personalized assessments of light sensitivity, color perception, and color wavelength sensitivity in a controlled immersive environment, facilitating precise lens tint and eyewear recommendations.
Implementation Method 1
focusing the camera on an eye area of a user wearing the electronic device; while displaying the visual stimulus, in real time, capturing a sequence of eye images using the camera of the electronic device
Data Source
AI summary
A virtual reality (VR) system can be implemented for recommending lens tints through an interactive vision sensitivity test. The system can include an electronic device equipped with a head-mounted display (HMD) and eye-tracking sensors. The device can generate a VR user interface representing a three-dimensional virtual environment, which can be rendered on the HMD. Within this virtual environment, the system can sequentially simulate various lighting conditions and glare levels. Concurrently, the eye-tracking sensors can continuously monitor the user's responses to these simulated conditions in real-time. The device can evaluate the collected data to assess the user's vision sensitivity performance, ultimately facilitating the recommendation of appropriate lens tints.