Windshield Sensor Compartment Window for Distortion-Free Optical Detection
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Solution Overview
Problem
Existing driver assistance systems face challenges in improving the detection performance of optical sensors, such as lidar and cameras, due to integration with the windshield, which can lead to distortion, ghosting, and reduced light transmittance.
Innovation Solution
A sensor compartment with a light-transmitting compartment window is integrated into the windshield, allowing optical sensors to receive light directly through the window, and the compartment housing can be made of diverse materials and shapes, simplifying the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the optical sensor is integrated with the windshield using an inked area and light-transmitting area, then the sensor can be installed on the windshield, but the detection performance is reduced due to distortion, ghosting, and reduced light transmittance
Solution Approach 1:
The patent divides the windshield integration into two separate components: a sensor compartment housing (made of opaque or translucent material) and a separate light-transmitting compartment window. This segmentation allows the housing to be structurally integrated with the windshield while the window provides an optimized optical path, eliminating distortion and ghosting effects that occur when the sensor is directly integrated with the windshield glass.
Solution Approach 2:
The compartment window serves as an intermediary element between the external environment and the optical sensor. It is a dedicated light-transmitting component that mediates the optical path, allowing light to pass through while blocking harmful factors like direct sunlight and interference. This intermediary structure eliminates the distortion and ghosting problems associated with direct windshield integration.
2Reliability
If glass with excellent optical properties is used for the compartment window, then light detection performance is improved, but the assembly process becomes more complex
Solution Approach 1:
By separating the compartment housing from the compartment window, the patent allows each component to be manufactured and optimized independently. The housing can be made from various materials (opaque or translucent plastic, metal, or glass) using standard manufacturing processes, while the window can be made from high-performance optical glass. This segmentation simplifies assembly compared to integrating the optical sensor directly into the windshield, as the compartment can be pre-assembled and then mounted as a complete unit.
Solution Approach 2:
The patent provides flexibility in material selection for the compartment housing, allowing changes in physical parameters such as material type (opaque vs. translucent), shape, and size. This enables optimization of the housing for manufacturing ease while maintaining the optical performance of the separate window component, thus improving both detectability and ease of manufacture.
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 sensor compartment enhances the detection performance of optical sensors by improving light transmittance and reducing assembly complexity, while maintaining the aesthetic and functional integrity of the windshield.
Implementation Method 1
the window is a light-transmitting compartment window... light outside the compartment housing can be received by the optical sensor through the compartment window
Data Source
AI summary
A sensor compartment, a driving device having the sensor compartment, and a sensor compartment installation method relate to the field of driver assistance system technologies. An installation manner of an optical sensor in the sensor compartment can improve detection performance of the optical sensor. The sensor compartment includes a compartment housing, the compartment housing is of a sealed structure, the compartment housing has at least one window, and the window is a light-transmitting compartment window. In addition, the compartment housing is configured to place at least one optical sensor, and light outside the compartment housing can be received by the optical sensor through the compartment window.