Lens Module Fixation Stability via Segmented Positioning
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Solution Overview
Problem
The imaging quality of lens modules in electronic devices is compromised due to poor stability and reliability of fixation between the lens and the light-blocking member, which tend to move relative to each other when fixed by pressing.
Innovation Solution
A lens module with a positioning structure comprising a protrusion and groove arrangement between the lens and the light-blocking member, where the protrusion is fixedly held by a matching groove, enhancing the stability and reliability of their fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the lens is fixed to the light-blocking member by pressing, then the structure is simple, but the stability and reliability of fixation deteriorates
Solution Approach 1:
The fixation structure is segmented into multiple independent positioning structures (first positioning structure, second positioning structure, etc.), each with positioning parts and holding parts. This segmentation allows each positioning structure to independently contribute to fixation stability while maintaining overall structural simplicity.
Solution Approach 2:
The positioning structures extend the fixation from a single pressing dimension to multiple spatial dimensions. The positioning parts and holding parts create multi-directional constraints, preventing relative movement in various directions and significantly improving fixation reliability without substantially increasing complexity.
2Ease of manufacture
If the lens and light-blocking member are pressed together, then the assembly process is simple, but relative movement between components occurs
Solution Approach 1:
The positioning parts (protrusions) and holding parts (grooves) are pre-formed on the lens and light-blocking member respectively during manufacturing. This preliminary action ensures that when components are assembled, the positioning structures automatically engage to prevent relative movement, maintaining position stability without complex assembly procedures.
Solution Approach 2:
The positioning structures act as intermediary elements between the lens and light-blocking member. Rather than relying solely on direct pressing contact, the positioning parts and holding parts serve as mediators that establish stable geometric relationships, preventing relative movement while keeping the assembly process simple.
Data Source
AI summary
Provided is a lens module, including a lens barrel, a set of lenses and a light-blocking member. The set of lenses includes a first lens disposed adjacent to the light-blocking member. The first lens includes a first optical portion for imaging and a first fixing portion surrounding the first optical portion. The lens module further includes a first positioning structure configured to fix the first lens to the light-blocking member. The first positioning structure includes a first positioning part arranged on one of the first fixing portion and the light-blocking member, and a first holding part arranged in the other one of the first fixing portion and the light-blocking member; the first holding part holds the first positioning part. The lens module according to the present disclosure has an improved stability and reliability of fixation between the lens and the light-blocking member.