Optical Image Capturing Module Multi-Lens Frame Alignment
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Solution Overview
Problem
Current video-recording devices with multiple lenses face challenges in achieving accurate image quality due to misalignment of the optical axis with the CMOS active pixel sensor during assembly, and require a solution to incorporate multiple lenses while maintaining fine imaging quality.
Innovation Solution
An optical image capturing module with a multi-lens frame that embeds signal transmission elements, ensuring the optical axis of each fixed-focus lens assembly overlaps with the central normal line of the sensing surface, and includes a circuit assembly with image sensor elements and lens bases with accommodating holes for precise light transmission, minimizing module size and preventing deformation-related issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple lenses are included to meet higher photographic requirements, then the photographic capability is improved, but the alignment precision between optical axis and CMOS sensor deteriorates
Solution Approach 1:
The patent divides the lens system into multiple independent lens assemblies (first lens assembly, second lens assembly, third lens assembly, fourth lens assembly) mounted on a common lens holder. Each lens assembly can be independently positioned and adjusted, allowing precise alignment of each optical axis with the CMOS sensor while maintaining the benefits of multiple lenses for enhanced photographic capability.
Solution Approach 2:
The patent introduces a lens holder as an intermediary component that provides a stable mounting platform for multiple lens assemblies. The lens holder includes positioning structures and adjustment mechanisms that mediate between the lens assemblies and the CMOS sensor, ensuring accurate optical axis alignment while supporting multiple lenses for improved photographic versatility.
2Ease of manufacture
If signal transmission elements are not embedded in the lens frame, then the manufacturing process is simpler, but component deformation and short-circuiting occur during packing
Solution Approach 1:
The patent merges the signal transmission elements with the lens frame by embedding conductive patterns directly into the lens frame structure. This integration ensures that signal transmission elements maintain their positional relationship with the lens components, preventing deformation and short-circuiting during packing while still allowing for a streamlined manufacturing process through combined structure formation.
Solution Approach 2:
The patent incorporates signal transmission elements into the lens frame during the lens frame manufacturing process itself, before the packing and assembly stages. This preliminary action ensures that the signal transmission elements are already in their correct positions and protected within the lens frame structure, preventing deformation and short-circuiting that would occur if they were added later during packing.
3Productivity
If the optical axis does not overlap with the central normal line of the sensing surface, then the assembly process is faster, but the image quality deteriorates
Solution Approach 1:
The patent designs the lens assemblies with self-aligning features where the optical axis is inherently oriented to overlap with the central normal line of the CMOS sensor through the lens holder's structure. This self-service alignment mechanism ensures accurate image quality without requiring complex post-assembly calibration procedures, thus maintaining both assembly speed and image quality.
Solution Approach 2:
The patent replaces complex mechanical alignment procedures with a structurally predetermined alignment system. The lens holder and lens assemblies are designed with fixed geometric relationships that automatically ensure the optical axis overlaps with the central normal line of the sensing surface, eliminating the need for time-consuming manual alignment while guaranteeing image quality.
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 solution ensures high image quality by aligning the optical axis with the sensing surface, preventing signal deformation, and minimizing module size, while allowing for the inclusion of multiple lenses without compromising imaging quality.
Implementation Method 1
Each of the fixed-focus lens assemblies may have at least two lenses with refractive power
Data Source
AI summary
An optical image capturing module is provided, including a circuit assembly and a lens assembly. The circuit assembly may include a circuit substrate, a plurality of image sensor elements, a plurality of signal transmission elements, and a multi-lens frame. The image sensor elements may be connected to the circuit substrate. The signal transmission elements may be electrically connected between the circuit substrate and the image sensor elements. The multi-lens frame may be manufactured integrally and covered on the circuit substrate and the image sensor elements. A part of the signal transmission elements may be embedded in the multi-lens frame, whereas the other part may be surrounded by the multi-lens frame. The lens assembly may include a lens base and a fixed-focus lens assembly. The lens base may be fixed to a multi-lens frame. The fixed-focus lens assembly may have at least two lenses with refractive power.