Aspherical Vehicle Side Mirror with Segmented Optical Power
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional side mirrors, whether plane or convex, fail to provide a uniform sense of perspective and accurate distance judgment due to optical distortion and limited field of view, leading to blind spots and inaccurate object distance perception.
Innovation Solution
A side mirror with a mirror housing and a divided aspherical mirror part, where the internal side is closer to the vehicle and the external side is farther, with mirror areas having the same optical power at borders and increasing gradually, ensuring a constant optical power rate and minimizing distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a convex mirror is used to widen the field of view, then the viewing angle is increased, but the distance judgment is impaired due to high reduction magnification and spherical aberration
Solution Approach 1:
The mirror surface is divided into multiple regions with different curvatures: a first region with higher curvature for wide-angle viewing and a second region with lower curvature for accurate distance judgment. This segmentation allows each region to serve its specific function while combining them in a single mirror structure.
Solution Approach 2:
Different regions of the mirror surface are given different optical properties (curvature values) according to their specific functions. The first region has higher curvature optimized for expanding field of view, while the second region has lower curvature optimized for maintaining accurate distance perception.
2Measurement precision
If a plane mirror is used for accurate distance judgment, then the distance perception is improved, but the field of view remains limited
Solution Approach 1:
The mirror surface is divided into multiple regions with different curvatures: a first region with higher curvature for wide-angle viewing and a second region with lower curvature for accurate distance judgment. This segmentation allows each region to serve its specific function while combining them in a single mirror structure.
Solution Approach 2:
The invention merges the advantages of both convex mirrors (wide field of view) and plane mirrors (accurate distance judgment) into a single integrated mirror structure with multiple regions having different curvatures, eliminating the need for separate mirrors.
3Area of moving object
If an assistant mirror is mounted to provide additional viewing area, then the field of view is expanded, but the border area causes severe image distortion and poor rear vision sense
Solution Approach 1:
The mirror surface is divided into multiple regions with different curvatures: a first region with higher curvature for wide-angle viewing and a second region with lower curvature for accurate distance judgment. This segmentation allows each region to serve its specific function while combining them in a single mirror structure.
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 drivers to predict distances accurately and see objects at various ranges with a clear sense of perspective, eliminating blind spots and minimizing image distortion, while widening the field of view.
Implementation Method 1
a mirror part supported by the mirror housing and divided into a plurality of mirror areas with an aspherical shape
Data Source
AI summary
The present invention relates to a side mirror for a vehicle, the side mirror being provided on a vehicle for facilitating the checking of road situations on the left, right, and rear sides. The side mirror for a vehicle comprises a mirror housing which is mounted on the exterior of the vehicle, and a mirror part which is supported by the mirror housing, and is divided into multiple mirror areas which are in aspherical form respectively across the horizontal direction from the internal side, which is close to the vehicle, to the external side, which is far from the vehicle. In the mirror part, the respective optical powers of the mirror areas gradually increase from the internal side to the external side so as to have the same optical power at the borders of the mirror areas, and the optical power rate for at least one of the mirror areas is constant.