Lens Air-Duct Layout for Mobile Imaging Contamination Control
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Solution Overview
Problem
Imaging devices in mobile devices such as cars and drones suffer from contamination of the lens due to poor anti-contamination performance, affecting their normal use.
Innovation Solution
The implementation of air ducts around the lens that introduce and exhaust air to form air walls, redirecting stains away from the lens and enhancing anti-contamination performance by minimizing accumulation and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the imaging device is used in mobile devices such as cars and drones, then the imaging device can capture images during movement, but the lens becomes contaminated by stains due to poor anti-contamination performance
Solution Approach 1:
The patent introduces air as an intermediary substance between the lens and stains. Air ducts deliver airflow that creates a protective air barrier, preventing direct contact between stains and the lens surface. This mediator approach resolves the contradiction by allowing mobility while protecting the lens through the intermediary air flow.
Solution Approach 2:
The patent applies pneumatic principles by using air flow generated through air ducts to protect the lens. The controlled airflow creates positive pressure that actively pushes stains away from the lens, providing anti-contamination protection while maintaining the mobility required for applications in cars and drones.
2Object-affected harmful factors
If air ducts are introduced to protect the lens, then anti-contamination performance is improved, but device complexity increases
Solution Approach 1:
The air duct system is designed to serve multiple functions: it delivers air flow to create protective barriers, actively removes stains, and can be integrated with existing device structures. This multi-functionality reduces the need for separate protection mechanisms, thereby limiting the increase in device complexity while improving contamination protection.
Solution Approach 2:
The air ducts are designed with flexible, thin-walled structures that can be easily integrated into the device housing. This design minimizes the structural complexity and space required for the air duct system while maintaining effective air flow delivery to protect the lens.
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 air duct system effectively reduces the risk of lens contamination by guiding stains away, thereby improving the anti-contamination performance of the imaging device.
Implementation Method 1
Each air duct (20) includes an inlet duct (21) and an outlet duct (22) connected to the inlet duct (21). The inlet duct (21) is configured to introduce air, and the outlet duct (22) is configured to exhaust the air from the inlet duct (21).
Data Source
AI summary
An imaging device includes a lens and a plurality of air ducts. The lens includes a lens element having an optical axis extending along a first direction. Each air duct includes an inlet duct and an outlet duct. The inlet duct can introduce air. When viewed along the first direction, the outlet ducts are disposed around the lens element, each outlet duct extend towards the optical axis in a direction perpendicular to the first direction; each outlet duct includes an air outlet, and the air outlet can exhaust the air to form an air wall. Along an extending direction of each outlet duct, a projection of the air outlet onto the optical axis forms an axial segment, and the air wall from the air outlet passes through the axial segment, axial segments of the outlet ducts are spaced from each other. The present disclosure further provides a mobile device.