Transparent Sun Visor Panel With Sliding Mirror for Glare Control
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Solution Overview
Problem
Conventional opaque sun visors block sunlight glare but also obstruct the driver's view, contributing to higher traffic accident rates during dawn and dusk.
Innovation Solution
A substantially transparent sun visor apparatus with a sliding mirror assembly, using materials like polycarbonate or Trivex, that allows visibility by blocking sunlight glare without obstructing the view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional opaque sun visors are used to block sunlight glare, then sunlight glare is blocked, but the driver's field of view is obstructed
Solution Approach 1:
The sun visor panel transitions from an opaque state to a transparent state through electrochromic or PDLC technology, allowing it to change its optical properties based on driving conditions. This enables the visor to block sunlight glare when needed while maintaining visibility when the panel is in transparent mode, thus resolving the contradiction between glare blocking and field of view.
2Object-affected harmful factors
If opaque materials are used for sun visor panel, then sunlight glare is blocked effectively, but visibility for driver is reduced
Solution Approach 1:
The optical parameters of the visor panel are dynamically changed by applying voltage to switch between transparent and opaque states. This allows the panel to provide effective glare blocking when required while maintaining driver visibility during normal conditions, thus resolving the contradiction between glare blocking effectiveness and driver visibility reliability.
3Illumination intensity
If a sliding mirror assembly is added to the transparent visor, then visibility is enhanced, but device complexity increases
Solution Approach 1:
The sliding mirror assembly integrates multiple functions into a single mechanism: it provides glare reflection, night vision enhancement, and adjustable positioning. The mirror can be positioned in different locations on the visor panel to address various lighting conditions, thus enhancing road visibility while keeping the added complexity manageable through multi-functionality.
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
Enhances road visibility for drivers by blocking harmful sunlight glare while maintaining an unobstructed view, reducing the risk of traffic accidents.
Implementation Method 1
Polycarbonate and Trivex are preferred materials for constructing the panel component because they offer strong protection against UV rays
Implementation Method 2
Conventional sun visors also commonly comprise an opaque mirror component
Data Source
AI summary
Disclosed herein are substantially transparent vehicle sun visor apparatuses comprising a panel component, a top edge, a bottom edge, and at least one track; a stopper, wherein the stopper may be configured to attach to the panel component at the end of the at least one track; and a mirror assembly comprising an accessory slider, wherein the accessory slider comprises a wedge-shaped protrusion configured to slide onto the track.