I/O Assembly Optical Isolation for Camera Modules
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Solution Overview
Problem
The integration of multiple features in portable electronic devices, such as camera modules, becomes increasingly complex, and improper mounting or alignment of camera modules can lead to damage and degraded imaging performance.
Innovation Solution
A portable electronic device with an input/output (I/O) assembly that includes a first camera module, a second camera module, and a strobe module positioned between them, along with an audio transducer adjacent to the strobe module, is described. This assembly is secured to the device's enclosure using a trim and a turret, ensuring proper alignment and protection of the components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple camera modules and audio components are integrated into a single device, then the device functionality and imaging capability are improved, but the device complexity and mounting difficulty increase
Solution Approach 1:
The patent divides the complex I/O assembly into separate functional modules (camera modules, strobe module, audio transducer) that are independently mounted to the back wall. Each module has its own mounting structure and positioning features, allowing them to be assembled separately and then integrated into the final configuration, thereby reducing overall mounting complexity while maintaining multiple functions.
Solution Approach 2:
The back wall structure serves multiple functions simultaneously: it provides structural support for the device, acts as a mounting surface for all I/O components, and includes integrated features like the turret and trim that provide both mechanical support and optical isolation. This multi-functionality reduces the need for additional separate structures.
2Volume of moving object
If camera modules are mounted closer together to save space, then the device size is reduced, but the risk of component damage and alignment errors increases
Solution Approach 1:
The patent employs a nested mounting structure where the trim is positioned within the turret, and camera modules are mounted within the enclosed space defined by these structures. This nesting approach allows compact arrangement of components while maintaining proper spacing and protection through multiple layers of structural support.
Solution Approach 2:
The turret and trim structures are designed to provide protective enclosures around the camera modules before final assembly. These structures act as cushioning elements that prevent direct contact and potential damage between components, while also ensuring precise alignment through pre-formed mounting surfaces and positioning features.
3Volume of moving object
If the strobe module is positioned between camera modules, then space is optimized, but optical isolation becomes more difficult
Solution Approach 1:
The patent applies selective optical properties to different regions of the back wall and mounting structures. The turret and trim are designed with specific optical characteristics (such as light-absorbing or light-blocking properties in certain areas) to prevent strobe light from interfering with camera modules while allowing necessary light transmission in other areas. This localized optimization of optical properties resolves the interference issue without requiring complete separation of components.
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 described solution provides a compact and efficient way to combine camera modules, strobe modules, and audio components, improving image quality by optically isolating the strobe's light from the camera modules, and ensuring secure mounting to prevent damage.
Implementation Method 1
The audio transducer can detect audible signals
Implementation Method 2
a strobe module positioned between the first camera module and the second camera module
Data Source
AI summary
Portable electronic devices having I/O assemblies that can include optical and audio components are described. An exemplary I/O assembly can include a first camera module and a second camera module that can be carried within a camera module housing. A flex connector can carry a strobe that can be positioned between the first camera module and the second camera module. A trim can enclose the first camera, the second camera and the strobe and optically isolates the optical components. An exemplary portable electronic device can include a side wall retainer that defines its perimeter, a front cover glass and a rear cover glass that cooperate to form an enclosure. The I/O assembly can be secured to the enclosure both from inside and outside of the rear cover glass. I/O assembly can also include an audio transducer that can record sound when the camera module are recording videos.