Lens Module Adhesive Slot Design for Stability
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Solution Overview
Problem
Existing lens modules in portable electronic devices suffer from insufficient anchoring force, leading to imaging instability due to loose lenses, as the current adhesive fixation methods are inadequate.
Innovation Solution
The lens module design incorporates a protrusion on the bearing portion of the lens, creating separate adhesive accommodation slots that increase the adhesive attachment area, ensuring lenses are arranged closer and the module is more reliable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive is dispensed at the plug to fix the lens module, then the lens module can be assembled, but the anchoring force is insufficient and lenses are easily loosened
Solution Approach 1:
The bearing portion is divided into an inclined surface, a vertical surface, and a bottom surface that are separated to form an adhesive accommodation slot. This segmentation increases the total adhesive attachment area and improves the anchoring force compared to a single continuous surface.
Solution Approach 2:
The adhesive attachment area is extended from a two-dimensional plane to a three-dimensional slot structure by creating depth through the inclined surface, vertical surface, and bottom surface. This dimensional change allows adhesive to be contained and distributed more effectively, increasing the anchoring force.
2Reliability
If a simple plug structure is used for fixation, then the device complexity is low, but the anchoring force is insufficient leading to imaging instability
Solution Approach 1:
The bearing portion is segmented into multiple surfaces (inclined, vertical, and bottom surfaces) that form an adhesive accommodation slot. This segmentation enhances fixation reliability without requiring additional separate components, thus maintaining relatively low device complexity.
Solution Approach 2:
The bearing portion serves multiple functions: it supports the optical element, provides structural positioning, and creates the adhesive accommodation slot for enhanced fixation. This multi-functionality improves reliability without adding separate dedicated fixation components.
3Reliability
If lenses are arranged with sufficient spacing, then assembly is easier, but the module reliability decreases due to insufficient adhesive attachment area
Solution Approach 1:
The adhesive attachment area is expanded from a flat two-dimensional surface to a three-dimensional slot structure with depth. The inclined surface, vertical surface, and bottom surface create a volumetric adhesive region that increases the effective attachment area without requiring larger lateral spacing between lenses.
Solution Approach 2:
The bearing portion is segmented into multiple surfaces that collectively form the adhesive accommodation slot. This segmentation distributes the adhesive across multiple surfaces (inclined, vertical, and bottom surfaces), increasing the total attachment area and improving reliability.
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 design enhances the reliability and stability of the lens module by increasing the adhesive attachment area, resulting in improved imaging performance and reduced lens loosening.
Implementation Method 1
The adhesive accommodation slot includes an inclined surface, a vertical surface, and a bottom surface; and the adhesive attachment area is increased by dispensing adhesive into the adhesive accommodation slot
Data Source
AI summary
The present disclosure provides a lens module, including a lens barrel and a lens group. The lens group including at least one lens, and the lens barrel including an inside surface and an outside surface. The lens includes an optical portion and a bearing portion. The bearing portion includes an object side, an image side, a lateral surface and an inclined surface. The inside surface includes a first abutting surface, an extend surface and a second abutting surface, the lateral surface abutting against the first abutting surface, the lateral surface is provided with a protrusion extending from the lateral surface towards the second abutting surface. The protrusion is separated from the second abutting surface. The protrusion, the lateral surface, the extend surface and the second abutting surface form a first adhesive accommodation slot, and the inclined surface, the protrusion and the second abutting surface form a second adhesive accommodation slot.