Vehicle Rear Imaging Optics With Split Magnification Regions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle surroundings monitoring devices do not meet the high-resolution image requirements for normal traveling, despite satisfying the angle of view needed when the moving object moves backward.
Innovation Solution
An imaging apparatus installed in a moving object, featuring an optical system that forms a high-resolution region and a peripheral resolution region at different magnifications, with the optical axis inclined upward to capture a wide-angle image while maintaining high resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a conventional monitoring device uses a single optical system, then it can provide a wide angle of view for backward movement, but it cannot provide high-resolution images for normal traveling
Solution Approach 1:
The optical system is divided into multiple regions with different magnifications. A first region provides high magnification for high-resolution imaging during normal traveling, while a second region provides low magnification for wide-angle viewing during backward movement. This segmentation allows the single optical system to deliver multiple resolution levels simultaneously, resolving the contradiction between high resolution and wide angle of view coverage.
2Adaptability or versatility
If the optical axis is oriented straight backward, then the image captures the area directly behind the moving object, but it cannot provide both high resolution and wide-angle view simultaneously
Solution Approach 1:
Different regions of the imaging device are assigned different qualities or functions. The first region is optimized for high resolution with higher magnification, while the second region is optimized for wide-angle viewing with lower magnification. This local differentiation allows the system to provide high resolution where needed while maintaining wide-angle coverage for other areas, enabling dual functionality without sacrificing image quality.
3Device complexity
If a single optical system is used, then the device complexity is reduced, but it cannot satisfy both high-resolution requirements and wide-angle requirements
Solution Approach 1:
The single optical system is designed to perform multiple functions by incorporating regions with different magnifications. It can simultaneously provide high-resolution imaging for normal traveling and wide-angle imaging for backward movement, making one device universal for multiple purposes. This eliminates the need for separate optical systems while maintaining adaptability across different operating conditions.
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 imaging apparatus achieves a high-resolution image for normal traveling while providing a wide-angle view for monitoring the area behind the moving object, enhancing visibility for the driver.
Implementation Method 1
The optical system is configured to input the optical image to the imaging circuit
Data Source
AI summary
An imaging apparatus provided in a moving object to capture an image of an area behind the moving object includes an imaging circuit and an optical system. The imaging circuit outputs an image based on an optical image input to a light-receiving surface. The optical system inputs the optical image to the imaging circuit. The optical system forms a first region at a first magnification and a second region at a second magnification lower than the first magnification. The second region is formed around the first region. The imaging apparatus is installed in the moving object so that, on the light-receiving surface of the imaging circuit, an axis passing through a center of the first region and extending in a direction from which the optical system receives light is inclined toward an upper side of the moving object with respect to a backward direction of the moving object.