Multi-Sensor Contact Lens for Blink and Orientation Detection
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Solution Overview
Problem
Current technologies lack effective methods for simultaneously detecting eye blinks and contact lens orientation using multiple sensors on a contact lens, which is essential for controlling features and communicating with remote devices.
Innovation Solution
A multi-sensor contact lens with sensors strategically positioned around its periphery, coupled with a control circuit that monitors sensor states to determine blinking and orientation, allowing for local control and communication of eye blink and orientation information to remote devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple sensors are positioned around the periphery of the contact lens to detect blinks and orientation, then detection precision is improved, but the risk of obstructing vision increases
Solution Approach 1:
The patent applies local quality by strategically positioning sensors at specific locations around the periphery of the contact lens (e.g., at 12 o'clock, 3 o'clock, 6 o'clock, and 9 o'clock positions) rather than uniformly distributing them. This localized placement optimizes detection capability for blink and orientation events while minimizing visual obstruction in the central vision area.
Solution Approach 2:
The patent transitions from a single-dimension approach to a multi-dimensional sensor arrangement by positioning sensors in different angular positions around the lens periphery. This spatial distribution in multiple dimensions allows the system to detect orientation changes and blinks more accurately without concentrating sensors in one location where they would obstruct vision.
2Measurement precision
If multiple sensors are used to detect blink patterns and orientation, then detection capability is improved, but device complexity increases
Solution Approach 1:
The patent implements multi-functionality by designing a sensor system where the same set of sensors performs multiple functions: detecting eye blinks, determining contact lens orientation, and identifying blink patterns. This universal approach allows one sensor array to replace what would otherwise require separate detection systems, thereby improving detection capability while managing device complexity.
Solution Approach 2:
The patent combines multiple detection functions into a single integrated sensor system. By merging blink detection, orientation sensing, and pattern recognition capabilities into one multi-sensor array on the contact lens, the system achieves enhanced detection capability without proportionally increasing overall device complexity.
3Measurement precision
If sensors are positioned to detect partial blinks and orientation changes, then measurement precision is improved, but the number of sensors required increases
Solution Approach 1:
The patent applies preliminary action by pre-positioning sensors at strategic locations around the contact lens periphery before the lens is worn. This advance placement optimization allows the system to detect partial blinks and orientation changes with fewer sensors, as each sensor is positioned to maximize its contribution to detection precision rather than requiring a dense uniform array.
Solution Approach 2:
The patent segments the detection function across multiple discrete sensor positions around the lens periphery. Rather than using a continuous array or excessive number of sensors, the system divides the detection task among strategically placed sensor segments at key angular positions, achieving comprehensive detection capability with a minimized sensor count.
Data Source
AI summary
This disclosure relates to systems and/or methods for detection of eye blinking using an active contact lens with multiple sensors and detecting orientation of the active contact lens.