A-pillar blind spot display using virtual ellipsoid projection
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Solution Overview
Problem
Conventional blind spot removal systems for vehicles, such as blind spot mirrors and camera-based systems, suffer from distortion issues due to viewing angles and aesthetics, and fail to provide clear and timely recognition of obstacles, increasing the risk of collisions.
Innovation Solution
A pillar display system that uses an image projector to project a blind spot image onto a pillar, forming a pattern area with virtual ellipsoids aligned with the driver's eye position, minimizing distortion and providing a clear, continuous image of the blind spot by reflecting the image from the pillar to the driver's eyes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If blind spot mirrors are mounted on the vehicle, then blind spots can be removed, but the esthetic appearance of the vehicle deteriorates and depth perception of the driver is deteriorated
Solution Approach 1:
The invention extracts the blind spot monitoring function from traditional external mirrors and relocates it to the A-pillar display system. The camera captures blind spot images and the projector displays them on the A-pillar, removing the need for external convex mirrors while maintaining blind spot detection capability
Solution Approach 2:
The invention introduces an intermediary system consisting of cameras and projectors mounted on the vehicle. Instead of using external mirrors, the system uses cameras to capture images and projectors to display them on the A-pillar, serving as an intermediary between the blind spot area and the driver's view
2Reliability
If camera-based blind spot systems are used, then blind spots can be removed, but image distortion occurs depending on driver's viewing angle
Solution Approach 1:
The invention applies local quality by creating a pattern area with specific optical properties on the A-pillar. The pattern area consists of multiple facets oriented at different angles to reflect light from the projector to the driver's eyes, ensuring clear image display regardless of the driver's viewing angle
Solution Approach 2:
The invention uses virtual ellipsoids to model the optical path between the projector, A-pillar, and driver's eyes. By setting the projector and driver's eyes as foci of ellipsoids, the system ensures that images are reflected clearly to the driver's position from any viewing angle within the pattern area
3Reliability
If conventional blind spot systems are used, then blind spots can be detected, but the driver does not have enough time to recognize and cope with obstacles
Solution Approach 1:
The invention implements preliminary action by continuously displaying blind spot images on the A-pillar in the driver's field of view. This allows the driver to proactively monitor blind spot areas without needing to shift attention or wait for obstacles to become visible in traditional mirrors, enabling earlier recognition and response to potential hazards
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 system minimizes field of view deterioration, allows easy recognition of blind spots, and provides a clear image throughout the pattern area, enhancing driver safety by reducing the risk of collisions.
Implementation Method 1
a pattern area is formed by a combination of facets of the virtual ellipsoids disposed at a position where the virtual ellipsoids and the A-pillar meet each other... an image from the image projector is reflected from the A-pillar to the driver's eyes
Data Source
AI summary
A pillar display system for a blind spot of a vehicle may include an A-pillar disposed inside a vehicle; and an image projector projecting a blind spot image of the vehicle taken with a camera, wherein a plurality of virtual ellipsoids are formed by setting an area where a driver's eyes are positioned and the image projector as focuses, and a pattern area formed by a combination of facets of the virtual ellipsoids is disposed at a position where the virtual ellipsoids and the A-pillar meet each other wherein the image from the image projector is displayed on the pattern area.