Camera Lens Module Adjustable Calibration for Eccentric Alignment
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Solution Overview
Problem
The existing camera lens assembly process is prone to assembly errors that result in reduced image resolution due to eccentric or tilted alignment of lenses with respect to the light sensor chip, and conventional assembling tolerances cannot be corrected once the lens barrels are assembled, affecting the optical quality and productivity of camera modules.
Innovation Solution
A camera lens module with adjustable optical lens modules that allow for pre-assembling and calibration of lens positions along six axes (X, Y, Z, U, V, W) before final assembly, using a calibration channel and UV-glue mixed with thermosetting adhesive for precise alignment and fixation, ensuring optimal image quality and reduced manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional assembling process is used for lens barrels, then assembly speed is maintained, but assembly errors cause lens eccentric or tilted alignment reducing image resolution
Solution Approach 1:
The patent applies preliminary action by pre-assembling lens modules with adjustable lens barrels before final assembly. The lens barrels are equipped with calibration channels and positioning structures that allow pre-positioning and calibration of lens components. This preliminary preparation enables precise alignment to be established before the final assembly step, thereby improving lens alignment precision without significantly impacting overall assembly speed.
Solution Approach 2:
The patent introduces intermediary calibration mechanisms including calibration channels, positioning pins, and adjustable mounting structures that act as mediators between the lens components and the final assembly. These intermediary structures enable precise positioning and calibration of lenses within the lens barrels, ensuring accurate alignment while maintaining a systematic assembly process that preserves productivity.
2Manufacturing precision
If lens barrels are assembled with conventional tolerances, then manufacturing cost is reduced, but assembly errors cannot be corrected affecting optical quality
Solution Approach 1:
The patent applies dynamics by designing lens barrels with adjustable and movable components rather than fixed rigid structures. The lens barrels include calibration channels, adjustable mounting positions, and movable lens holders that allow for post-assembly calibration and correction. This dynamic design enables the system to accommodate conventional manufacturing tolerances while providing the capability to correct assembly errors through calibration, thereby improving manufacturing precision without excessively increasing manufacturing complexity.
Solution Approach 2:
The patent utilizes parameter changes by incorporating calibration mechanisms that allow adjustment of lens position, orientation, and spacing after assembly. The calibration process involves changing physical parameters such as lens barrel position, lens mounting angle, and focal distance to correct assembly errors. This approach enables the system to achieve high optical quality by adjusting parameters after assembly, while still allowing conventional manufacturing tolerances during the manufacturing process.
3Manufacturing precision
If multiple lens barrels are assembled together, then optical system functionality is achieved, but cumulative assembly errors reduce image resolution
Solution Approach 1:
The patent applies segmentation by dividing the optical system into modular lens modules, each containing a lens barrel with calibrated lens components. Each lens module is independently calibrated and assembled with standardized interfaces, which reduces the cumulative effect of assembly errors. The modular structure allows for individual calibration of each module before final integration, maintaining high optical alignment accuracy while managing the complexity of multi-lens assemblies through standardized modular units.
4Manufacturing precision
If assembly calibration is performed after final assembly, then alignment correction is possible, but production efficiency is reduced
Solution Approach 1:
The patent applies preliminary action by performing initial calibration and positioning of lens components during the assembly process itself, rather than requiring separate post-assembly calibration steps. The lens barrels include built-in calibration channels and positioning structures that enable calibration to be integrated into the assembly workflow. This approach allows alignment correction to be performed as part of the manufacturing process, maintaining production efficiency while ensuring alignment accuracy.
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
This approach enhances image quality by correcting assembly errors, increasing production efficiency, and minimizing optical defects while maintaining cost-effectiveness, resulting in improved camera lens module performance.
Implementation Method 1
UV-glue mixed with thermosetting adhesive for precise alignment and fixation
Implementation Method 2
UV-glue mixed with thermosetting adhesive for precise alignment and fixation
Data Source
AI summary
Provided is a lens assembly, which comprises: a first optical lens module, comprising a first carrier and at least one first optical lens received in the first carrier; and a second optical lens module, comprising a second carrier, at least one second optical lens received in the second carrier, and a bearing portion connected to the second carrier. A lower end portion of the first carrier extends to the bearing portion, so as to constrain the relative positions of the first optical lens module and the second optical lens module.