Electrochromic Blue Light Blocking via Cumulative Intensity Thresholds
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Solution Overview
Problem
Prolonged exposure to blue light radiation, emitted from various sources including display devices and natural light, can lead to eye damage due to its high energy level and cumulative effect on the retina.
Innovation Solution
An apparatus comprising a radiation detector that converts blue light into a photo voltage, a processor that calculates cumulative radiation intensity over a time interval and compares it to a threshold value, and a controller that adjusts the blocking of blue light using an electrochromic layer when the intensity exceeds the threshold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If blue light is blocked completely, then eye protection is improved, but light transmission and visibility are worsened
Solution Approach 1:
The patent applies dynamics by making the blue light blocking capability adjustable rather than fixed. The controller can dynamically control the electrochromic layer to block different degrees of blue light based on cumulative radiation intensity thresholds, allowing the system to adapt between maximum protection and normal light transmission conditions.
Solution Approach 2:
The patent changes the blocking parameter of the electrochromic layer from a fixed state to a variable state. By controlling the electrochromic layer's light blocking degree between a first degree (lower blocking) and a second degree (higher blocking), the system can adjust the blue light blocking parameter according to radiation intensity conditions.
2Object-affected harmful factors
If blue light blocking is increased, then eye protection effectiveness is improved, but user convenience and normal vision are worsened
Solution Approach 1:
The patent applies self-service by enabling the system to automatically monitor cumulative blue light radiation intensity and autonomously adjust the blocking degree without user intervention. The controller automatically activates the electrochromic layer when thresholds are exceeded, making the protection process convenient and requiring no manual operation from the user.
Solution Approach 2:
The patent implements feedback by continuously monitoring the cumulative radiation intensity and using this information to control the blocking degree. The system receives feedback from the radiation environment and adjusts the electrochromic layer's blocking state accordingly, creating a closed-loop control system that balances protection and convenience.
3Reliability
If radiation monitoring is continuous, then eye protection reliability is improved, but energy consumption and device complexity are worsened
Solution Approach 1:
The patent applies periodic action by monitoring radiation intensity continuously but only activating the electrochromic layer when cumulative thresholds are exceeded. Rather than maintaining constant blocking, the system periodically activates protection only when necessary, reducing energy consumption while maintaining reliability through threshold-based triggering.
Solution Approach 2:
The patent applies preliminary action by calculating and monitoring cumulative radiation intensity in advance to determine when protection is needed. The system accumulates radiation data over time and activates the electrochromic layer before significant damage occurs, allowing for proactive rather than reactive protection that optimizes energy usage.
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
Effectively protects the user's eyes from blue light radiation by adjustably blocking harmful blue light when the cumulative radiation intensity exceeds a predetermined threshold, thereby reducing the risk of eye damage.
Implementation Method 1
a radiation detector configured to selectively convert blue light from a light source into a photo voltage having a voltage value
Implementation Method 2
an electrochromic layer configured to adjustably block at least a portion of blue light from the user's eye when the cumulative radiation intensity exceeds the threshold value
Data Source
Figure 1A
Figure 1B
Figure 2~3
AI summary
An apparatus for protecting a user's eye from blue light radiation is disclosed. The apparatus includes a radiation detector configured to convert blue light from a light source into a photo voltage having a voltage value; a processor coupled to the radiation detector and configured to calculate a cumulative radiation intensity based on the voltage value cumulated over a time interval, and to compare the cumulative radiation intensity with a threshold value; and a controller coupled to the processor, configured to adjustably control blocking of at least a portion of blue light from the user's eye when the cumulative radiation intensity exceeds the threshold value.