Camera Module Ball Receiving Portion Rigidity
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Solution Overview
Problem
Camera modules in mobile devices face challenges in achieving high zoom ratios without increasing the overall length of the module, and the repeated use of movable parts can lead to the dent phenomenon between the ball member and the housing.
Innovation Solution
The camera module incorporates a reflection module with a guide ball member and a ball receiving portion made of a material with higher rigidity than the housing, featuring a groove portion and a flange portion to prevent the dent phenomenon and maintain performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a ball member is used to guide the rotation of the reflection module, then the rotation is guided smoothly, but the dent phenomenon occurs between the ball member and the housing due to repeated use
Solution Approach 1:
The patent changes the material parameter of the ball receiving portion from a softer material to a harder material (higher rigidity) to prevent the dent phenomenon while maintaining the rotation guidance function of the ball member
Solution Approach 2:
The patent uses a composite structure where the ball receiving portion is made of a different material (higher rigidity) than the housing, creating a material composite that resolves the contradiction between smooth rotation and dent prevention
2Measurement precision
If the camera module is designed with sufficient total track length for high zoom ratio, then the zoom performance is improved, but the overall length of the camera module increases
Solution Approach 1:
The patent uses a reflection module that redirects light at an angle, changing the optical path from a straight linear dimension to a multi-dimensional path that achieves longer effective optical length without increasing the physical length of the camera module
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 the dent phenomenon and maintains the performance of the camera module by ensuring stable rotation of the reflection module and reducing wear on the guide ball member.
Implementation Method 1
a driving unit rotating the reflection module. The driving unit may include a driving magnet and a driving coil electromagnetically interacting with the driving magnet
Implementation Method 2
A ball member capable of performing a rolling motion may be used to move or rotate the reflector
Data Source
AI summary
A camera module includes a reflection module; a housing provided for the reflection module to be rotatable; a guide ball member disposed between the reflection module and the housing to guide the rotation of the reflection module; and a ball receiving portion, coupled to the housing, including a groove portion where the guide ball member is disposed and a flange portion extending externally from the groove portion. The ball receiving portion is formed of a material having higher rigidity than a material of the housing.