Optical Image Capturing Module With Integrated Multi-Lens Frame
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Solution Overview
Problem
Current video-recording devices with multiple lenses face challenges in achieving accurate image quality due to difficulties in calibrating the optical axis with CMOS active pixel sensors and complex component assembly, particularly when incorporating multiple auto-focus lenses, which affects image quality and assembly precision.
Innovation Solution
An optical image capturing module with an integrally manufactured multi-lens frame that embeds signal transmission elements, such as gold wire, to ensure accurate alignment and prevent deformation, along with a lens assembly that includes auto-focus lens assemblies with specific optical parameters to optimize image quality and minimize module size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple lenses are integrated into a single module, then the photographic capability is improved, but the assembly precision and optical axis alignment become more difficult to control
Solution Approach 1:
The patent integrates multiple lens assemblies (including wide-angle, telephoto, and depth-of-field lenses) into a single unified module with a shared optical axis. The lens holder and circuit board are designed as integrated structures that pre-align multiple lens assemblies, ensuring their optical axes coincide with the CMOS sensor's central normal line, thereby resolving the alignment precision issue while maintaining multi-lens functionality.
2Measurement precision
If more lenses are added to meet photographic requirements, then the imaging quality is improved, but the device complexity and assembly difficulty increase
Solution Approach 1:
The patent divides the multi-lens system into distinct functional modules (wide-angle lens assembly, telephoto lens assembly, depth-of-field lens assembly), each with its own lens holder and driving mechanism. This segmentation allows independent optimization and assembly of each lens unit, reducing the overall assembly complexity while maintaining high imaging quality through specialized design of each lens group.
Solution Approach 2:
The circuit board serves multiple functions: it acts as the mounting base for the CMOS sensor, provides electrical connections to all lens assemblies, and serves as part of the structural support framework. This multi-functionality reduces the number of separate components needed, thereby simplifying the overall device structure and assembly process while supporting multiple lens functions.
3Adaptability or versatility
If auto-focus function is implemented, then the versatility is improved, but the component composition becomes more complicated and packaging quality becomes difficult to manage
Solution Approach 1:
The patent implements auto-focus functionality by incorporating driving mechanisms (such as voice coil motors or piezoelectric actuators) that enable the lens assemblies to dynamically adjust their positions along the optical axis. The driving assemblies are integrated into the lens holder structure, allowing compact packaging while maintaining the dynamic focusing capability. The system can switch between fixed-focus and auto-focus modes based on operational requirements.
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 precise alignment of auto-focus lens assemblies with the image sensor, maintaining image quality while minimizing module size and preventing component deformation, thus addressing the challenges of complex assembly and multiple lens integration.
Implementation Method 1
Each of the auto-focus lens assemblies may have at least two lenses with refractive power... An optical axis of each of the auto-focus lens assemblies may overlap the central normal line of the sensing surface in such a way that light is able to pass through each of the auto-focus lens assemblies
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 be covered on the circuit substrate and the image sensing elements. The signal transmission elements may be embedded in the multi-lens frame. The lens assembly may include a lens base, an auto-focus lens assembly, and a driving assembly. The lens base may be fixed to a multi-lens frame. The auto-focus lens assembly may have at least two lenses with refractive power.