Multispectral Ocular Photosensitivity Analysis for Threshold Detection
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Solution Overview
Problem
The relationship between light spectra and visual photosensitivity is not well understood, necessitating a device capable of quantifying visual photosensitivity thresholds.
Innovation Solution
An ocular photosensitivity analyzer comprising a programmable light source with multi-spectra light modules, sensing system with high-definition cameras and sensors, and software modules to measure and analyze visual photosensitivity under varying conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a programmable light source with multiple multi-spectra light modules is used to emit light at a range of wavelengths, then the ability to measure visual photosensitivity under varying spectral conditions is improved, but the device complexity increases
Solution Approach 1:
The light source is divided into multiple independent multi-spectra light modules, each capable of emitting at different wavelengths. This segmentation allows the system to achieve spectral versatility through modular components rather than a single complex light source, making the system more manageable and maintainable while preserving the ability to test under various spectral conditions
Solution Approach 2:
Each multi-spectra light module is designed to emit light across multiple wavelengths, making each module universally applicable for testing different spectral conditions. This multi-functionality reduces the need for separate specialized light sources for each wavelength, thereby reducing overall device complexity while maintaining adaptability
2Measurement precision
If multiple high-definition cameras and sensors are used to collect subject responses, then the measurement precision and reliability are improved, but the device complexity and cost increase
Solution Approach 1:
Different sensors are positioned to capture specific local responses: cameras capture facial expressions and eye movements, EMG sensors detect muscle activity in specific regions, and GSR sensors monitor skin conductance. This localized sensing approach ensures high measurement precision for each response type while allowing the system to focus computational resources on analyzing relevant data from each sensor type
Solution Approach 2:
The system integrates multiple sensor inputs to create a comprehensive feedback loop for detecting subject responses. The software synthesizes data from cameras, EMG, and GSR sensors to accurately determine whether discomfort or pain is experienced, improving measurement precision through multi-modal verification while managing complexity through integrated processing
3Reliability
If machine-learning algorithms are used to analyze subject responses and classify discomfort or pain, then the reliability of threshold determination is improved, but the processing time and computational requirements increase
Solution Approach 1:
The machine-learning model is trained in advance on labeled data to recognize patterns associated with discomfort and pain. This preliminary training allows the system to perform rapid classification during actual measurements without requiring complex real-time computations, thereby maintaining high reliability while minimizing processing time during the actual photosensitivity testing
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 reliable, scalable, and comprehensive measurements of visual photosensitivity thresholds, providing insights into how wavelength affects discomfort and pain thresholds.
Implementation Method 1
Each of the multi-spectral light modules may comprise a ring of lights around a center, wherein each of the lights comprises one or more light-emitting diodes
Data Source
AI summary
Ocular photosensitivity analyzer. In an embodiment, a programmable light source, comprising a plurality of multi-spectra light modules, is configured to emit light according to a lighting condition. For one or a plurality of iterations, the programmable light source is activated to emit the light according to the lighting condition, and collect a response, by a subject, to the emitted light via a sensing system comprising one or more sensors. Between iterations, the programmable light source may be reconfigured based on the response to determine a visual photosensitivity threshold of the subject.