Camera Module Lens Barrel Protrusion Groove Coupling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
As the number of lenses in a camera module increases, it becomes challenging to prevent the separation of lenses from the lens barrel, especially due to external impacts, which can lead to image quality issues.
Innovation Solution
The camera module incorporates a design where a first lens barrel and a second lens barrel are coupled using a protrusion and a groove, with a gap maintaining member and adhesive used to secure the lenses, preventing separation and enhancing coupling strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of lenses in the lens barrel is increased, then the imaging capability is improved, but the difficulty of fixing the lenses increases
Solution Approach 1:
The lens barrel is divided into multiple segments corresponding to different lens groups. Each segment has its own fixing structure (press-fit ring or adhesive application area), allowing independent fixation of each lens group. This segmentation enables effective fixing even as the number of lenses increases by distributing the fixation task across multiple locations rather than relying on a single fixation point.
2Reliability
If a press-fit ring or adhesive is used to fix the outermost lens, then lens separation is prevented, but the fixing effectiveness decreases as the number of lenses increases
Solution Approach 1:
The lens barrel is designed with universal fixing features that can accommodate different numbers of lenses. The same basic structure (press-fit ring or adhesive application area) serves multiple functions: fixing the outermost lens, providing structural support, and maintaining alignment. This multi-functionality allows the fixing structure to remain effective regardless of the number of lenses, preventing the need for increasingly complex fixation mechanisms.
3Volume of stationary object
If the lens barrel internal space is made wider to accommodate more lenses, then the lens accommodation capacity is improved, but the lens separation risk increases
Solution Approach 1:
The lens barrel employs local quality enhancement by providing targeted fixing features at specific locations where lenses are most prone to separation. Rather than uniformly reinforcing the entire barrel, press-fit rings and adhesive application areas are strategically positioned at the outermost lens locations and between lens groups. This localized reinforcement maintains lens stability while accommodating increased lens capacity, as the fixing structures are placed precisely where needed to prevent separation.
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 effectively prevents lens separation due to external impacts, reduces phenomena like lifting, shaking, and rattling, and improves image capturing quality by maintaining the optical system's integrity.
Implementation Method 1
the first lens barrel and the second lens barrel are configured to be coupled to each other by a protrusion and a groove
Implementation Method 2
applying an adhesive to the other side of the lens barrel
Data Source
AI summary
A camera module includes a first lens barrel including a first support portion supporting a lens accommodated in the first lens barrel on an object side of the first lens barrel, and a second lens barrel including a second support portion supporting a lens accommodated in the second lens barrel on an image side of the second lens barrel, wherein the first lens barrel and the second lens barrel are configured to be coupled to each other by a protrusion and a groove.