Camera Bumper Structure for OIS Lateral Collision Cushioning
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Solution Overview
Problem
Small form factor cameras face challenges in cushioning lateral movement, which can lead to undesirable collisions with stationary structures, potentially damaging the camera and impacting performance and user experience, and also result in unwanted acoustic and electrostatic issues.
Innovation Solution
Incorporating bumper arrangements, such as spring bumpers or tabs, that cushion lateral movement by engaging with protrusions or recesses, reducing the risk of collision and electrostatic charge buildup, and providing acoustic mitigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the moveable platform is allowed to move laterally for optical image stabilization, then the camera can compensate for unwanted motion, but the moveable platform may collide with the stationary structure causing damage and acoustic issues
Solution Approach 1:
A bumper is attached to the moveable platform that protrudes toward the stationary structure. The bumper makes contact with the stationary structure before the moveable platform can collide with it, cushioning the lateral movement and preventing damage to the camera components while maintaining optical image stabilization functionality.
2Volume of moving object
If the moveable platform moves laterally close to the stationary structure, then compact design is achieved, but electrostatic charge buildup occurs causing performance issues
Solution Approach 1:
The bumper acts as an intermediary element between the moveable platform and the stationary structure. It maintains the necessary proximity for compact design while preventing direct contact that would generate electrostatic charge, thereby eliminating performance issues caused by electrostatic accumulation.
3Device complexity
If no bumper is used, then device complexity is reduced, but lateral movement causes damaging collisions and acoustic disturbances
Solution Approach 1:
The bumper provides a simple yet effective cushioning mechanism that prevents harmful collisions and acoustic disturbances before they can occur. The minimal structural addition of the bumper delivers significant protection against damage while maintaining relatively low device complexity.
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 bumper arrangements effectively prevent collisions, reduce electrostatic charge accumulation, and enhance the camera's performance and user experience by absorbing lateral movement, thus protecting the camera and improving operational stability.
Implementation Method 1
a spring attached to an outer surface of the moveable platform; a protrusion extending from the stationary structure towards the spring, the protrusion to engage the spring when a lateral movement stroke of the moveable platform reaches a stroke threshold
Data Source
AI summary
Various embodiments include a camera having one or more bumper arrangements to cushion lateral movement of one or more camera components. In some embodiments, the bumper arrangement(s) may cushion lateral movement of a moveable platform as the moveable platform approaches a stationary structure. According to some embodiments, the bumper arrangement(s) may include one or more bumper features attached to (and/or defined by) the moveable platform and/or the stationary structure.