Anti-glare Screen for Data Display Glasses
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Solution Overview
Problem
Current data display glasses struggle with visibility issues in high luminosity conditions, as the contrast of the information is not sufficient against intense incident light, and the use of solar lenses or sunglasses is not compatible with all data display technologies, making it difficult to maintain clear data perception regardless of ambient light intensity.
Innovation Solution
The glasses feature an anti-glare screen with a variable transmission coefficient, controlled through pulse width modulation, allowing a majority of light rays to directly reach the user while adjusting the transmission to reduce glare, ensuring moderate brightness perception and maintaining data visibility in varying light conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the transmission coefficient of the screen is increased to improve data visibility, then the brightness of incident light also increases, causing glare and reduced contrast
Solution Approach 1:
The patent applies a variable transmission coefficient that dynamically adapts to ambient light conditions. The screen transitions from a static optical element to a dynamic one that adjusts its light transmission properties in real-time, allowing it to optimize the balance between data visibility and glare reduction based on environmental lighting conditions.
Solution Approach 2:
The invention changes the transmission parameter of the screen from a fixed value to a variable one. By modifying the transmission coefficient according to ambient light intensity, the system achieves optimal contrast between displayed data and background glare, resolving the contradiction between visibility and glare protection.
2Object-affected harmful factors
If solar lenses or sunglasses are used to reduce incident light intensity, then glare is reduced, but compatibility with all data display technologies is lost
Solution Approach 1:
The variable transmission screen serves multiple functions: it acts as both a display medium and a glare control mechanism. Unlike specialized solar lenses that are limited to specific display technologies, this screen is universally compatible while providing adaptive light transmission control, achieving both glare reduction and broad technology compatibility.
Solution Approach 2:
The variable transmission screen acts as an intermediary between the incident light and the user's eye. It mediates the light transmission in a controlled manner, allowing beneficial light (displayed data) to pass through while filtering harmful glare, without requiring specialized solar lens materials that would limit display technology options.
3Object-affected harmful factors
If the transmission coefficient is decreased to reduce glare, then incident light intensity is reduced, but data visibility also deteriorates
Solution Approach 1:
Rather than using a fixed low transmission coefficient to reduce glare, the system dynamically adjusts the transmission coefficient based on ambient light conditions. This allows the screen to maintain high data visibility when needed while providing glare protection when incident light intensity becomes problematic, resolving the contradiction between glare reduction and data visibility.
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 enables clear reading of data displayed on the glasses even in bright light, adapting the screen's transmission coefficient to match ambient light intensity, preventing glare and maintaining sufficient contrast, thus ensuring the user can perceive data effectively regardless of the brightness of the surrounding environment.
Implementation Method 1
the anti-glare screen transmits light when the display means displays data, light from the data displayed on the display area and directed towards the anti-glare screen passes through the anti-glare screen
Data Source
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Figure 3~4
AI summary
The invention relates to glasses (1) provided with at least one lens (2) and intended to be worn by a user, said glasses (1) comprising display means (7) that can be used to project data in the user's field of view, and an anti-glare screen (8) having a variable transmission coefficient that can be used to attenuate the intensity of incident light intended to pass through the lens (2) towards the user. The display means (7) and the anti-glare screen (8) are positioned such that part of the rays emitted by the display means (7) in order to display the data hit the anti-glare screen (8). The glasses (1) are configured to adapt the transmission coefficient of the anti-glare screen (8) according to the intensity of the incident light. In addition, the display means (7) are coupled to the anti-glare screen (8) such that the display means (7) display data when the anti-glare screen (8) transmits light.