Rear-View Camera Mounting Structure for Vibration-Stable Imaging

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Solution Overview

Problem

Existing rear-view camera assemblies for vehicles face issues with image stability due to vibrations from road surfaces and wind, leading to diminished image clarity, and require proper weight support to improve image quality.

Innovation Solution

A rear-view assembly comprising a frame secured to the vehicle with a housing and at least one camera, where the camera is secured within a cavity of the frame using a cap with a void to allow lens viewing in a rearward direction, and optionally a second camera for outward viewing, with a bezel aperture for lens alignment, and an actuator for adjusting a reflective element to enhance image capture and stability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a camera is mounted in the mirror housing to capture rearward field of view, then the camera can identify hazards and provide rear vision, but the camera produces images with diminished clarity due to vibrations from road surfaces and wind

Engineering Contradiction:
Improveimage clarityVSAvoidvibrations
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent separates the camera mounting structure from the mirror housing by introducing a dedicated camera support bracket that attaches to the vehicle body rather than the mirror assembly. This segmentation isolates the camera from vibration sources in the mirror mechanism while maintaining its rearward viewing function.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary damping element or isolation mechanism between the camera and the vehicle body mounting structure. This intermediary component absorbs and reduces vibrations transmitted to the camera, thereby improving image clarity while maintaining reliable hazard detection capability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the camera weight is not properly supported, then the assembly remains simple, but the image quality deteriorates due to instability

Engineering Contradiction:
Improveimage qualityVSAvoidmounting structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The mounting system is segmented into multiple functional components: a rigid support bracket for weight bearing, separate damping elements for vibration isolation, and adjustable positioning mechanisms. This segmentation allows each component to be optimized for its specific function while collectively providing stable camera support.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent employs composite mounting structures combining rigid materials (for weight support) with damping materials (for vibration reduction). This composite approach provides both the structural integrity needed to support camera weight and the vibration isolation necessary for image quality, balancing complexity with performance.

Inventive Principle:
Principle #40Composite materials

Data Source

PatentUS20230303001A1Rear-View Camera Assembly
Publication Date: 2023.09.28 MOTHERSON INNOVATIONS CO LTD
  • US20230303001A1 patent drawing
  • US20230303001A1 patent drawing
  • US20230303001A1 patent drawing

AI summary

Embodiments of the present disclosure relate to a rear-view assembly comprising a housing, a frame, wherein the frame is secured to a vehicle and the housing is secured to the frame, and at least one camera, having at least one lens is secured to the frame to improve image stability. The rear-view assembly may also include a bezel and a reflective element. The bezel has a bezel aperture which allows the at least one lens to view a rearward direction with respect to the vehicle.