Eyewear with LCD Glare Detection and Blocking
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Solution Overview
Problem
Standard sunglasses are ineffective in addressing specific glare sources, leading to reduced visibility, especially in situations like driving during sunrise or sunset, as they fail to account for directional light and can obstruct peripheral vision.
Innovation Solution
Integration of a micro camera on eyewear to detect glare sources and a transparent LCD panel that darkens a specific circular area to block glare while preserving overall vision, using a system that adjusts to maintain a fixed focal distance and angular alignment with the pupil.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If standard sunglasses are used to block intense light, then glare from light sources is reduced, but visibility to ancillary areas and side of the light source is reduced
Solution Approach 1:
The patent applies local quality by making only a specific circular portion of the transparent LCD panel dark to block the glare source, while the rest of the panel remains transparent. This allows selective blocking of harmful light from specific directions while preserving visibility in other areas, resolving the contradiction between glare reduction and peripheral vision maintenance.
2Object-affected harmful factors
If standard sunglasses are used to block intense light, then glare is reduced, but overall visibility and peripheral vision are obstructed
Solution Approach 1:
The transparent LCD panel darkens only a specific circular area corresponding to the glare source location, while maintaining transparency in all other areas. This localized approach blocks intense light from the glare direction while preserving overall illumination and visibility in non-glare areas.
Solution Approach 2:
The system dynamically adjusts the darkened circular area's position, size, and opacity based on real-time detection of glare source location and intensity by the micro camera. This dynamic adaptation allows the eyewear to respond to changing glare conditions while maintaining optimal overall visibility.
3Extent of automation
If a micro camera and transparent LCD panel are integrated into eyewear, then automatic detection and blocking of glare sources is achieved, but device complexity increases
Solution Approach 1:
The micro camera serves multiple functions: detecting glare sources, determining their location and intensity, and providing feedback for controlling the LCD panel. This multi-functionality reduces the need for separate sensors and control mechanisms, thereby limiting the increase in device complexity while achieving automatic glare management.
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 solution effectively reduces glare interference, allowing clear vision along the line of sight by automatically detecting and blocking glare sources, enhancing visibility and reducing visual disability from intense light sources.
Implementation Method 1
the development of micro cameras and liquid crystal displays (LCDs) suggests a potential solution to this problem
Implementation Method 2
a transparent LCD panel that darkens a specific circular area to block glare while preserving overall vision
Data Source
AI summary
An eyewear system for automatically detecting and blocking a source of glare from at least one eye of a user. The eyewear system having a first transparent LCD lens; a second transparent LCD lens having a plurality of pixel positions, each of the plurality of pixel positions configured to activate to block the source of glare from the eye of the user; a transparent material with a view of the source of glare; and a control system for detecting the source of the glare and activating at least one of the plurality of pixel positions.