Vehicle Camera View Guide for Dashboard Reflection Blocking
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Solution Overview
Problem
The reflection of dashboard light from the window shield into the camera lens of a vehicle video record system results in undesired reflections being included in the captured video, particularly affecting AR navigation systems.
Innovation Solution
A camera module with a view guide extending ahead of the lens to block reflected light, featuring a base view guide with a distal end shaped to drop downward from the center, and left and right view guides with ascending steps, minimizing the inclusion of dashboard reflections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the camera is positioned vertically inside the window shield to capture front surrounding video, then the field of view covers the required area, but reflected light from the dashboard enters the lens and creates unwanted reflections in the video
Solution Approach 1:
A view guide structure is introduced as an intermediary element between the dashboard and the camera lens. This view guide blocks the path of reflected light from the dashboard to the lens while maintaining the camera's vertical positioning and field of view coverage, effectively mediating between the conflicting requirements of comprehensive viewing area and reflection elimination
2Area of stationary object
If the vertical angle of view is increased to include the hood part, then the monitoring coverage is improved, but the influence of reflected light from the dashboard becomes greater
Solution Approach 1:
The view guide acts as a mediator that allows the camera to maintain its wide vertical field of view for hood monitoring while physically blocking the reflected light paths. The view guide's positioning and geometry are designed to intercept dashboard reflections before they reach the lens, enabling comprehensive coverage without the penalty of increased reflection interference
3Device complexity
If the camera is fixed inside the window shield for AR navigation, then the system integration is simplified, but dashboard reflections are introduced into the captured video
Solution Approach 1:
Rather than relocating the camera or complicating the system architecture, a view guide is introduced as a simple intermediary component within the existing window shield mounting structure. This maintains the simplicity of system integration while effectively blocking dashboard reflections from entering the lens, preserving the AR navigation functionality without introducing reflection artifacts
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
Minimizes the influence of dashboard reflections in the captured video, enabling effective AR navigation by cropping out affected areas.
Implementation Method 1
having a view guide extending ahead of the at least one camera to block reflected light coming into a lens of the at least one camera from inside the vehicle
Data Source
AI summary
A vehicle video record system includes a camera module for monitoring an area around a vehicle, a first memory for storing a video transmitted from the camera module, and a controller including a second memory configured to store a computer program for controlling storage of the video, and a processor configured to execute the computer program, where the camera module includes at least one camera having a view guide extending ahead of the at least one camera to block reflected light coming into a lens of the at least one camera from inside the vehicle, where a vertical field of view of the field of view increases from a center toward both ends along a horizontal expansion of the field of view.