Retina Blue-Light Exposure Evaluation Method
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for reducing blue-light radiation injury to the retina, such as reducing color temperature and shifting the peak wavelength of blue light, may not adequately protect the retina as they do not account for variations in environmental brightness and pupil size, which affect the absolute radiation quantity reaching the retina.
Innovation Solution
A method and apparatus for evaluating blue-light-radiation injury to the retina, which involves acquiring current environmental and display brightness, determining a device-environment factor, and calculating an optimum middle-grayscale brightness for the display to ensure the retina is within a safe blue-light exposure threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the color temperature is reduced to decrease blue light content, then the blue light injury to retina is reduced, but the visual stimulation and display quality deteriorate
Solution Approach 1:
The patent changes the parameter of peak wavelength of blue light from short wavelength (400-450nm) to long wavelength (450-500nm), thereby reducing retinal injury while maintaining display quality and visual stimulation
Solution Approach 2:
The patent dynamically adjusts display parameters based on environmental brightness and viewing conditions to optimize both eye protection and visual stimulation, rather than using fixed color temperature reduction
2Object-affected harmful factors
If the peak wavelength of blue light is deviated toward long wave to reduce short-wavelength blue light injury, then the retinal damage is reduced, but the absolute radiation quantity reaching retina in dark environment remains high
Solution Approach 1:
The patent introduces feedback mechanisms that detect environmental brightness and pupil size conditions, then dynamically adjust display parameters to control the absolute radiation quantity of blue light reaching the retina across different viewing conditions
Solution Approach 2:
The patent performs preliminary evaluation of blue light radiation exposure based on environmental conditions and device parameters before actual viewing, allowing pre-adjustment of display settings to ensure safe radiation levels
3Illumination intensity
If manufacturers increase brightness and contrast to intensify visual stimulation, then the display performance is improved, but the blue light radiation injury to retina increases
Solution Approach 1:
The patent changes the spectral parameters of blue light (peak wavelength toward long wave) to achieve both high brightness/contrast for visual stimulation and reduced retinal injury by separating luminance from blue light hazard
4Quantity of substance
If only the relative proportion of blue light is reduced while maintaining display brightness, then the blue light content in white light is decreased, but the absolute radiation quantity reaching retina in dark environment remains dangerously high
Solution Approach 1:
The patent uses feedback from environmental brightness sensing and pupil size estimation to dynamically control the absolute radiation quantity of blue light, ensuring safety across different viewing conditions rather than relying on fixed proportional reductions
Solution Approach 2:
The patent makes the blue light radiation control dynamic by adjusting display parameters in real-time based on environmental conditions and viewing distance, rather than using static proportional reduction
Data Source
AI summary
A method and apparatus for evaluating blue-light-radiation injury to a retina, a computer device and a medium. The method includes: acquiring a current environmental brightness and a current middle-grayscale brightness of a displaying device; according to a weighted blue-light-radiation-exposure value of a current environment, current environmental brightness, a weighted blue-light-radiation-exposure value of displaying device and current middle-grayscale brightness of displaying device, determining a device-environment factor; according to device-environment factor and current environmental brightness, determining an optimum middle-grayscale brightness of the displaying device in the current environment; according to the current middle-grayscale brightness of displaying device, the optimum middle-grayscale brightness of the displaying device in the current environment and the weighted blue-light-radiation-exposure value of the current environment, determining a current retina weighted blue-light-radiation-exposure value; and according to comparison between the current retina weighted blue-light-radiation-exposure value and a retina blue-light maximum safety-tolerance value, determining whether an eye-protection safety standard is satisfied.