Lens Module Base Hole Filling for Compact Camera Design
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Solution Overview
Problem
The miniaturization of electronic products is hindered by the need for a safety distance between electronic components and the lens module base, which increases the thickness and height of the lens module, limiting its size optimization.
Innovation Solution
A rigid-flexible circuit board with a filling layer of insulating material in the base's holes allows for the reduction of the safety distance between the base and electronic components, using a lens holder with a thread system to secure the lens, thereby minimizing the base thickness and height of the lens module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a safety distance is reserved between electronic components and the base of the lens module, then the camera function is protected from interference, but the thickness and height of the lens module increase
Solution Approach 1:
An insulating filling layer is introduced as an intermediary substance between the electronic components and the base of the lens module. This filling layer serves multiple functions: it provides electrical insulation to protect camera functionality, fills the safety distance gap, and allows the base thickness to be reduced while maintaining the necessary isolation between electronic components and the lens base.
2Reliability
If a safety distance is reserved between electronic components and the base of the lens module, then the camera function is protected from interference, but the height of the lens module increases
Solution Approach 1:
The insulating filling layer acts as a mediator that eliminates the need for excessive safety distance in the height direction. By providing insulation within the compact space, it enables reduced lens module height while maintaining camera function protection.
Solution Approach 2:
The insulating filling layer changes the electrical insulation parameter distribution within the lens module structure, allowing closer placement of electronic components to the base while maintaining functional isolation through the insulating properties of the filling material.
3Reliability
If the thickness of the base is increased to reserve safety distance, then the lens module height increases, but the overall size of electronic products is reduced
Solution Approach 1:
The insulating filling layer functions as a thin film that provides necessary electrical insulation without requiring the base thickness to be increased. This thin film approach maintains compact lens module dimensions while ensuring camera function protection, thereby reducing the overall volume of electronic products.
Data Source
AI summary
A lens module includes a circuit board, a base mounted on the circuit board, and at least one electronic component mounted on the circuit board. The base comprises a first surface and a second surface facing away from the first surface. The second surface is mounted on the circuit board. The base further comprises at least one first hole passing through the first surface and the second surface. The at least one electronic component is received in the at least one first hole. The lens module further comprises a filling layer in each of the at least one first hole and located on a side of the at least one electronic component facing away from the circuit board. The disclosure also provides an electronic device having the lens module.