Lens Module Positioning Structure for Stable Fixation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The stability and reliability of lens fixation in existing lens modules are compromised due to relative displacement between lenses, affecting imaging quality.
Innovation Solution
A positioning structure with a protrusion and groove arrangement is introduced, where the protrusion is embedded in the groove, enhancing the stability and reliability of lens fixation by preventing relative movement along the optical axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If lenses are fixed to each other by mutual pressing, then the structure is simple, but the stability and reliability of fixation deteriorates due to relative displacement between lenses
Solution Approach 1:
The lens fixation structure is segmented into three distinct components: a positioning structure on one lens, a holding structure on another lens, and positioning holes in the lens barrel. This segmentation allows each component to perform its specific function independently, improving overall fixation reliability while maintaining structural simplicity.
Solution Approach 2:
The positioning structure and holding structure act as intermediary elements between the lenses and the lens barrel. These intermediaries provide precise positioning and secure fixation, preventing direct mutual pressing between lenses while ensuring stable relative positions through the positioning holes in the lens barrel.
2Ease of manufacture
If lenses are fixed by mutual pressing, then manufacturing is easy, but imaging quality deteriorates due to poor fixation reliability
Solution Approach 1:
The fixation system is divided into modular components (positioning structures, holding structures, positioning holes) that can be manufactured independently and assembled together. This maintains ease of manufacture while achieving high precision fixation that ensures accurate lens alignment for improved imaging quality.
Solution Approach 2:
The positioning structures and holding structures are designed to automatically align and secure lenses within the positioning holes during assembly. This self-aligning mechanism ensures high manufacturing precision without requiring complex external positioning equipment or procedures.
Data Source
AI summary
A lens module, including: a lens barrel having a receiving space, a set of lenses received in the receiving space, the set of lenses including at least a first lens and a second lens close to the first lens, and a positioning structure fixing the first lens to the second lens. The first lens includes a first optical portion for imaging and a first fixing portion surrounding the first optical portion, and the second lens includes a second optical portion for imaging and a second fixing portion surrounding the second optical portion. The positioning structure includes a positioning part arranged on one of the first fixing portion and the second fixing portion, and a holding part arranged on the other one of the first fixing portion and the second fixing portion. The holding part holds the positioning part.