Electro-Optic Mirror with Lane Detection for Glare Reduction
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Solution Overview
Problem
Conventional rearview mirrors and automatic driving systems have limitations in detecting lane deviations and providing warnings, especially in low-light conditions, leading to increased driver reaction time and reduced safety due to visual dizziness from reflected light and limited lane information display.
Innovation Solution
A movable carrier auxiliary system with an optical image capturing system, warning module, and displaying device, featuring a lens group with specific refractive power and field angle characteristics, captures lane markings, generates warning signals for lane deviations, and displays them to the driver, while an electro-optic medium layer adjusts between anti-glare and mirror modes to reduce visual strain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional rearview mirror reflects front light from overtaking or subsequent vehicles, then the driver can see the rear view, but the driver experiences visual dizziness and reduced visual ability
Solution Approach 1:
The patent applies an electro-optic medium layer that can dynamically change its optical properties between transparent and reflective states based on electrical signals. This dynamic adjustment allows the system to adapt to different lighting conditions and eliminate glare caused by reflected light from subsequent vehicles, thereby resolving the contradiction between providing rear view visibility and preventing visual dizziness.
2Illumination intensity
If conventional rearview mirror is used in dark environment, then the driver's pupil enlarges to capture more light, but the driver becomes extremely sensitive to sudden light
Solution Approach 1:
The system performs preliminary detection of ambient light conditions and proactively adjusts the electro-optic medium layer's transparency before the driver encounters sudden light changes. By detecting dark environments in advance and preparing the optical state, the system prevents the driver's pupils from enlarging and becoming overly sensitive to sudden light, thereby maintaining driving safety.
3Loss of information
If automatic assisted driving system uses conventional sensing devices, then the system can detect external environment, but the system cannot effectively integrate lane information into image output device for wide-angle display
Solution Approach 1:
The patent combines multiple functions into a single integrated system: the image capturing module captures lane markings, the operation module processes and detects lane information, and the displaying device presents the processed information overlaid on the captured image. This merging of sensing, processing, and display functions into one cohesive system effectively integrates lane information without significantly increasing overall system complexity.
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 driving safety by providing a wide-angle view of lane information, reducing driver distraction, and improving reaction time through effective lane deviation warnings and adaptive glare management.
Implementation Method 1
Each of the optical image capturing systems has at least one lens group, wherein the at least one lens group includes at least two lenses having refractive power
Implementation Method 2
an electro-optic medium layer disposed between the first transparent assembly and the second transparent assembly
Implementation Method 3
at least one reflective layer, and at least one transparent conductive layer
Data Source
AI summary
A movable carrier auxiliary system includes at least one optical image capturing system disposed on a movable carrier, at least one warning module, and at least one displaying device. The optical image capturing system includes an image capturing module and an operation module, and has at least one lens group including at least two lenses having refractive power. The image capturing module captures and produces an environmental image surrounding the movable carrier. The operation module electrically connected to the image capturing module detects at least one lane marking in the environmental image to generate a detecting signal. The warning module electrically connected to the operation module receives the detecting signal to determine whether a moving direction of the movable carrier deviates from a lane, and generate a warning signal when the moving direction deviates from the lane. The displaying device electrically connected to the warning module displays the warning signal.