Camera Lens Barrel Recess Assembly for Deformation Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing camera modules face challenges in achieving high pixel, small size, and large aperture requirements while maintaining imaging quality, particularly due to lens deformation in extreme environments like high temperature and high humidity.
Innovation Solution
The optical lens design incorporates a first and second lens member with a recess on the lens barrel surfaces, supported by an adhesive, allowing active alignment to maintain relative positions and reduce stress concentration, thereby stabilizing the lens structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the lens structure is made compact to reduce size, then the camera module size is reduced, but the lens becomes more susceptible to deformation in extreme environments
Solution Approach 1:
The lens is divided into multiple lens members (first lens member, second lens member, etc.) that are separately mounted in lens barrels. This segmentation allows each lens member to be independently positioned and secured, reducing stress concentration and deformation in compact structures.
Solution Approach 2:
Lens members are pre-aligned and positioned in the lens barrels before final assembly. The adhesive is applied in advance to secure the lens members at predetermined positions, ensuring proper alignment is maintained during subsequent assembly steps and preventing deformation under thermal stress.
2Manufacturing precision
If adhesive is used to fix lens members in compact arrangements, then assembly precision is improved, but stress concentration may cause deformation in extreme environments
Solution Approach 1:
Different regions of the lens assembly have different structural characteristics. The lens members are positioned at specific locations within the lens barrels, and adhesive is applied selectively at these positions. This local differentiation allows precise positioning while distributing stress away from concentrated adhesive bonds.
Solution Approach 2:
The adhesive acts as an intermediary material between the lens members and lens barrels, providing both positioning precision and stress relief. The adhesive layer allows for precise alignment while accommodating thermal expansion differences between components in extreme environments.
3Measurement precision
If lens members are closely arranged to achieve high pixel density, then imaging resolution is improved, but imaging quality deteriorates due to lens deformation
Solution Approach 1:
The optical system is divided into multiple lens members that can be independently positioned and secured. This segmentation allows each lens member to maintain its precise position and optical properties, ensuring consistent imaging quality even in compact high-resolution configurations.
Solution Approach 2:
Lens members are pre-aligned to achieve the precise positioning required for high-resolution imaging. The adhesive is applied in advance to lock in these precise positions, ensuring that the optical alignment is maintained and imaging quality consistency is preserved under varying environmental conditions.
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
The design reduces lens deformation in extreme environments, maintaining structural stability and imaging performance by distributing stress effectively through recesses on the lens barrel surfaces.
Implementation Method 1
a first adhesive located in a first gap between the first lens member and the second lens member, the first adhesive supporting and fixing the first lens member and the second lens member after curing
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The present application provides an optical lens, a camera module, and an assembly method therefor. The optical lens includes a first lens member (100), a second lens member (200) and a first adhesive (300). The first lens member (100) includes a first lens barrel (102) and at least one first lens (101) mounted in the first lens barrel (102). The second lens member (200) includes a second lens barrel (202) and at least one second lens (201) mounted in the second lens barrel (202). The second lens (201) together with the first lens (101) forms an imaging optical system. The first adhesive (300) is located in a first gap (400) between the first lens member (100) and the second lens member (200), with the first adhesive (300) supporting and fixing the first lens member (100) and the second lens member (200) after curing. A surface of the first lens barrel (102) and/or a surface of the second lens barrel (202) have at least one recess (1020). According to the optical lens, the camera module and the assembly method thereof, the position shift and the deformation of the lens caused by the deformation of the lens barrel can be reduced, and the imaging quality of the optical lens or the camera module can be improved.