Blink Detection and Stimulation for Eye Health

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Solution Overview

Problem

Computer Vision Syndrome (CVS) is prevalent due to inadequate blinking while using digital devices, as existing technologies do not effectively monitor or prevent the associated eye and vision-related problems such as dry eyes, blurry vision, and fatigue.

Innovation Solution

A device with sensors to track blinks and actuators to initiate stimulation actions, such as flashing lights, haptic taps, or pneumatic puffs, when the blink rate falls below a threshold or the blink interval exceeds a defined time, to encourage users to blink more frequently.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If users continuously view digital devices, then productivity and usage time are improved, but eye health deteriorates due to insufficient blinking

Engineering Contradiction:
Improvedevice usage timeVSAvoideye health
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The system continuously monitors the user's blink rate using sensors and provides real-time feedback through stimulation signals when the blink rate falls below a threshold. This closed-loop feedback mechanism ensures that productivity can be maintained while eye health is protected through automatic intervention when abnormal blinking patterns are detected.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system enables users to take care of their own eye health by automatically detecting their blink patterns and providing appropriate stimulation without requiring external monitoring or manual intervention. The device serves itself by using its own sensors and actuators to monitor and correct user behavior.

Inventive Principle:
Principle #25Self-service

2Object-affected harmful factors

If blink stimulation actions are initiated frequently, then eye health is improved, but user distraction increases

Engineering Contradiction:
Improveeye healthVSAvoiduser distraction
Core Design Contradiction:
Object-affected harmful factorsVSEase of operation

Solution Approach 1:

The system applies stimulation actions selectively rather than continuously, only when the blink rate falls below a predetermined threshold. This partial action approach ensures that eye health is protected without causing unnecessary distraction during normal blinking patterns, balancing health benefits with user comfort.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The system establishes predetermined blink rate thresholds and stimulation parameters in advance, allowing it to respond automatically without requiring real-time decision-making that could distract the user. The preliminary setup of parameters ensures that stimulation is provided only when truly necessary.

Inventive Principle:
Principle #10Preliminary action

3Object-affected harmful factors

If blink monitoring is continuously performed, then eye health protection is improved, but energy consumption increases

Engineering Contradiction:
Improveeye health protectionVSAvoidenergy consumption
Core Design Contradiction:
Object-affected harmful factorsVSUse of energy by moving object

Solution Approach 1:

The system performs blink monitoring continuously but initiates stimulation actions only periodically when the blink rate threshold is violated. This periodic intervention approach maintains eye health protection while reducing energy consumption compared to continuous stimulation, as the actuators operate only when necessary rather than constantly.

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS10198068B2Blink detection, tracking, and stimulation
Publication Date: 2019.02.05 MICROSOFT TECHNOLOGY LICENSING LLC
  • US10198068B2 patent drawing
  • US10198068B2 patent drawing
  • US10198068B2 patent drawing

AI summary

Systems and methods are disclosed for blink detection, tracking, and stimulation. In one implementation, a device can include a sensor configured to receive an input, the input corresponding to perceiving one or more blinks of an eye of a user. The input can be processed to determine a blink rate or an elapsed time interval since a blink of the user. Based on the blink rate or the elapsed time interval, a blink stimulation action directed to the user can be initiated.