Intermittent Blue Light Control for Eye Strain Reduction

The patent applies periodic action by emitting blue light intermittently at a fixed frequency (1/30 to 1/15 seconds) rather than continuously. The control module regulates the blue light source to turn on and off periodically, creating a flickering effect that generates visual persistence in the human eye, thereby maintaining perceived screen visibility while reducing cumulative blue light exposure and macular damage risk

The patent introduces dynamics by making the blue light emission state changeable between on and off states at controlled frequencies. The control module dynamically adjusts the light emission timing, and the rotatable polarizer dynamically changes the polarization angle, transforming the static continuous light into a dynamic intermittent light that adapts to reduce eye strain while maintaining visibility

By implementing periodic blue light emission at 1/30 to 1/15 seconds frequency, the patent allows the eye's visual system to persist the image between flickers, maintaining color display quality while providing periodic relief to the ciliary muscle, preventing continuous tension and reducing eye fatigue and pseudomyopia risk

The patent introduces a rotatable polarizer as an intermediary component that modifies the blue light before it reaches the eye. The polarizer changes the polarization angle of the blue light, acting as a mediator that maintains the light's color display function while altering its physical properties to reduce scattering and ease the eye's focusing burden