Dynamic Lighting System for Visual Fatigue Reduction
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Solution Overview
Problem
Conventional lighting equipment provides only single or limited lighting parameters, leading to prolonged exposure of the human eye to a fixed lighting state, causing visual fatigue due to the lack of dynamic adjustment.
Innovation Solution
A dynamic lighting method and device that automatically and dynamically change electrical parameters such as illumination and color temperature, ensuring a change rate imperceptible to users, thereby preventing visual fatigue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If lighting parameters are kept fixed for simplicity, then device complexity is reduced, but visual fatigue increases due to prolonged exposure to single lighting state
Solution Approach 1:
The patent implements dynamic lighting by continuously varying illumination intensity and color temperature within specific ranges (illumination: 50-10000lux, color temperature: 2000-10000K) at controlled change rates (≤0.02 lux/0.1s), transforming the static lighting system into a dynamic one that adapts over time to prevent visual fatigue while maintaining user comfort
Solution Approach 2:
The system changes multiple lighting parameters simultaneously including illumination intensity, color temperature, and spectral composition, with each parameter varying within defined ranges and rates to create a comprehensive dynamic lighting effect that addresses visual fatigue through multi-dimensional parameter modulation
2Object-affected harmful factors
If lighting parameters are dynamically adjusted frequently, then visual fatigue is reduced, but user perception of light change increases which may interfere with usage
Solution Approach 1:
The patent applies partial action by implementing dynamic lighting adjustments that are sufficient to prevent visual fatigue but deliberately limited in magnitude (change rate ≤0.02 lux/0.1s) to remain below human perception thresholds, achieving the minimum necessary effect without excessive visibility of changes
Solution Approach 2:
The system maintains continuous dynamic adjustment of lighting parameters over extended periods, ensuring the anti-fatigue effect persists throughout usage without interruption, while the controlled change rates ensure continuity remains imperceptible to users, creating seamless operation
3Object-affected harmful factors
If multiple lighting parameters are adjusted simultaneously, then visual health is improved, but control precision requirements increase
Solution Approach 1:
The patent segments the control of multiple lighting parameters by implementing independent control circuits for illumination intensity, color temperature, and spectral composition, with each parameter adjustable through dedicated dimming controls that operate within specific ranges and rates, dividing the complex multi-parameter control into manageable independent segments
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 dynamic lighting system effectively mitigates visual fatigue by subtly adjusting lighting conditions, ensuring user comfort and maintaining good vision health without interfering with device usage.
Implementation Method 1
one or multiple lighting parts of the dynamic lighting device generate a dynamically changed light signal under driving of the first power supply signal
Data Source
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AI summary
A dynamic illumination method, comprising: a power supply output module of a dynamic illumination device outputting a first power supply signal according to an illumination control signal, the electrical parameters of the power supply signal including one or more groups of dynamically changing electrical parameters; and the one or more illumination portions of the dynamic illumination device generating a dynamically changingan i optical signal under the driving of the first power supply signal, so that the dynamic illumination device outputs dynamically changing illumination light, wherein the rate of change in the illuminance of the illumination light is not more than 0.02 within any one time period of 0.1 second, and the ratio of the minimum value and the maximum value of the illuminance of the illumination light output by the dynamic illumination device is not more than 50%. The illumination method can make an eye structure of a user change accordingly with a change of illumination light, thereby solving the problem that visual fatigue easily occurs when eyes are used for a long time.