Vehicle Sun Visor with Adjustable Light Transmission
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Solution Overview
Problem
Conventional sun visors in vehicles block light completely, obstructing the driver's view and compromising driving safety.
Innovation Solution
A sun shading device with a transparent touch display that adjusts light transmission rates based on user input, allowing partial light blocking without obstructing the view, using a support to rotate the light adjusting device to a preset angle and incorporating fingerprint authentication for secure operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an opaque sun visor is used to block light completely, then light blocking effectiveness is improved, but the driver's view is obstructed
Solution Approach 1:
The sun visor transitions from a static opaque structure to a dynamic adjustable device that can change its light transmission properties. The visor incorporates display panels with controllable transparency, allowing it to switch between opaque and transparent states or adjust to intermediate levels, thereby dynamically balancing light blocking effectiveness with driving visibility
Solution Approach 2:
The invention changes the optical parameter (transparency) of the sun visor from a fixed opaque state to a variable state. By controlling the transparency parameter of the display panels, the visor can adjust its light transmission rate to achieve optimal light blocking while maintaining sufficient visibility for the driver
2Loss of information
If a transparent display device is used to maintain view, then driving visibility is improved, but light blocking effectiveness is reduced
Solution Approach 1:
The transparent display device incorporates adjustable transparency control, allowing it to dynamically modify its light transmission properties. This enables the display to maintain visibility when needed while providing sufficient light blocking when required, resolving the contradiction between transparency and light blocking effectiveness
Solution Approach 2:
The sun visor integrates multiple functions into a single device: it serves as both a display interface and a light blocking mechanism. The display panels can function as information displays while simultaneously providing adjustable sunlight blocking, eliminating the need for separate opaque visor materials
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
Enables effective light blocking while maintaining a clear view for the driver, enhancing driving safety by allowing adjustable light transmission rates and sub-area division for optimal sunlight management.
Implementation Method 1
the light adjusting device at least partially blocks external light by adjusting its light transmission rate
Data Source
AI summary
The present invention discloses a sun shading device, a sun shading method and a transportation vehicle. The sun shading device comprises a support and a light adjusting device provided on the support, the light adjusting device at least partially blocks external light by adjusting its light transmission rate. In the technical solutions of the sun shading device, the sun shading method based on the sun shading device, and the transportation vehicle comprising the sun shading device provided in the present invention, the sun shading device may not only block light, but also avoid blocking a user's view.