Multi-Lens Frame Optical Module for Precise Axis Alignment
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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 during assembly, and managing the complex composition of components, especially when incorporating multiple lenses for improved photographic capabilities.
Innovation Solution
An optical image capturing module is designed with a circuit assembly, lens assembly, and multi-lens frame, where the multi-lens frame is manufactured integrally to cover the circuit substrate and image sensor elements, with signal transmission elements embedded within, and includes fixed-focus and auto-focus lens assemblies positioned to ensure accurate alignment and image quality, using materials like thermoplastic resin and metal for enhanced performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple lenses are used to meet higher photographic requirements, then photographic capability is improved, but assembling and packaging quality becomes difficult to manage
Solution Approach 1:
The patent combines multiple lens assemblies (fixed-focus and auto-focus) and signal transmission elements into a single integrated multi-lens frame structure. This merging approach consolidates what would otherwise be separate components requiring individual assembly, thereby improving photographic capability while managing the complexity of assembling and packaging quality through a unified structural design.
Solution Approach 2:
The multi-lens frame serves multiple functions simultaneously: it provides structural support for lens assemblies, guides light transmission through integrated light channels, and embeds signal transmission elements for electrical connections. This multi-functionality reduces the number of separate components needed, improving photographic capabilities while simplifying assembly and packaging management.
2Adaptability or versatility
If multiple lenses are incorporated for improved photographic capabilities, then imaging quality requirements are met, but optical axis alignment with CMOS sensor becomes difficult to calibrate
Solution Approach 1:
The patent implements preliminary action by pre-aligning the optical axes of multiple lens assemblies with the CMOS sensor during the manufacturing of the integrated multi-lens frame. The light channels and structural features are pre-configured to ensure proper optical alignment, eliminating the need for complex field calibration and ensuring accurate optical axis alignment with the CMOS sensor before the device is even assembled.
Solution Approach 2:
The multi-lens frame acts as an intermediary structure that mediates between the lens assemblies and the CMOS sensor. It provides integrated light channels and alignment features that guide and ensure proper optical axis alignment, serving as a precision reference framework that transfers alignment accuracy from the manufacturing process to the final assembled device.
3Ease of manufacture
If signal transmission elements are routed externally, then ease of assembly is maintained, but manufacturing precision and image quality are compromised
Solution Approach 1:
The patent applies the nesting principle by embedding signal transmission elements within the multi-lens frame structure itself. The transmission elements are nested inside the frame's light channels and structural cavities, allowing them to be positioned with high manufacturing precision during frame fabrication. This eliminates the need for external routing while maintaining assembly ease through the integrated design.
Solution Approach 2:
The patent merges the signal transmission function with the structural and optical guidance function of the multi-lens frame. By combining these functions into a single integrated structure, the signal transmission elements can be precisely positioned during frame manufacturing, ensuring both manufacturing precision for image quality and ease of assembly through the unified design.
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 and improved image quality by embedding signal transmission elements within the multi-lens frame, allowing for accurate optical axis alignment and effective management of complex components, thereby addressing the challenges of multiple lenses in video-recording devices.
Implementation Method 1
The fixed-focus lens assembly and the auto-focus lens assembly 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, a fixed-focus lens assembly, an auto-focus lens assembly, and a driving assembly. The lens base may be fixed to a multi-lens frame.