Camera Module Bobbin Wire Coating for Stray Light Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional optical systems face challenges in achieving high image quality due to stray light reflection within the lens, which affects the performance of electronic devices with increasing functionality requirements.
Innovation Solution
A camera module design incorporating a fixed base, a carrier with a bobbin, an elastic element, an imaging lens, a coil, a magnetic element, a connection wire, and a light-blocking coating to prevent light reflection by providing freedom of movement and using a light-blocking coating to secure and protect the connection wire, ensuring high image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional lens configuration is used, then the device structure is simple, but light reflection occurs affecting image quality
Solution Approach 1:
The patent extracts the connection wire from the conventional lens configuration and relocates it to the bobbin structure. By taking out the problematic element (connection wire) from its original position where it caused light reflection, and placing it in a new location (bobbin) with light-blocking coating, the harmful light reflection is eliminated while maintaining the electrical connection function.
Solution Approach 2:
The patent introduces a light-blocking coating as an intermediary substance between the connection wire and the optical path. This coating acts as a mediator that prevents direct interaction between the connection wire and light, blocking the harmful reflection while allowing the electrical connection to function normally. The intermediary layer resolves the conflict between electrical connectivity and optical quality.
2Device complexity
If the connection wire is exposed without coating, then the manufacturing process is simpler, but light quality deteriorates due to reflection
Solution Approach 1:
The patent applies a light-blocking coating (typically black or dark-colored) to the connection wire and bobbin surfaces. This color change transforms the reflective surface into a light-absorbing surface, preventing stray light reflection. The color modification is a straightforward surface treatment that effectively eliminates the harmful optical effect with minimal added complexity.
3Stability of the object's composition
If the carrier is fixed without freedom of movement, then the structure is more stable, but the imaging function is compromised
Solution Approach 1:
The patent implements a dynamic carrier design that can move along the optical axis while maintaining lateral stability. The elastic element provides controlled movement capability, allowing the carrier to adjust its position for different imaging functions (such as focusing) while the overall structure remains stable. This dynamic design enables the carrier to adapt to different imaging requirements without compromising structural integrity.
Solution Approach 2:
The patent segments the carrier structure into movable and fixed portions. The carrier body can move along the optical axis for imaging adjustments, while the bobbin and connection wire assembly remains laterally stable. This segmentation allows different parts of the carrier to have different degrees of freedom, simultaneously achieving both stability and adaptability required for proper imaging function.
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 camera module effectively reduces light reflection, maintaining image quality and providing structural stability, suitable for high-end electronic devices with wide-angle imaging capabilities.
Implementation Method 1
The elastic element is connected to the fixed base and the carrier so as to provide freedom of movement of the carrier along a direction with respect to the fixed base
Implementation Method 2
The magnetic element is disposed corresponding to the coil so as to provide a driving force for moving the carrier along the direction
Implementation Method 3
The light-blocking coating is disposed on the at least part of the connection wire facing towards the optical axis
Data Source
AI summary
A camera module includes a fixed base, a carrier, an elastic element, an imaging lens, a coil, a magnetic element, a connection wire and a light-blocking coating. The carrier is disposed opposite to the fixed base and has a bobbin. The elastic element is connected to the fixed base and the carrier so as to provide freedom of movement of the carrier with respect to the fixed base. The imaging lens is disposed on the carrier and has an optical axis. The coil is disposed on the carrier. The magnetic element is disposed corresponding to the coil so as to provide a driving force for moving the carrier. The connection wire is disposed on the bobbin and electrically connected to the elastic element and the coil, and the connection wire has at least part facing towards the optical axis where the light-blocking coating is disposed.