Lens Moving Module Elastic Support for Shock-Stable Imaging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing camera modules, particularly in small electronic devices like smartphones, face challenges in withstanding shocks and hand tremors, leading to inaccurate image capture due to inadequate stabilization mechanisms.
Innovation Solution
A lens moving apparatus is designed with a bobbin, coil, magnet, and elastic members to electromagnetically move a lens barrel, incorporating a support system that includes a housing, frame connection portions, and support members to distribute stress and improve hand tremor compensation, featuring a unique coupling and connection structure to enhance stability and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional camera module structure is used, then the device can be manufactured with standard components, but the module cannot effectively withstand shocks and hand tremors leading to inaccurate image capture
Solution Approach 1:
The camera module is divided into separate functional components: a movable lens assembly mounted on an elastic member, and a fixed housing. The elastic member acts as an independent vibration isolation element that segments the shock transmission path, allowing the lens to move independently from housing vibrations while maintaining manufacturing feasibility.
Solution Approach 2:
An elastic member is introduced as an intermediary element between the lens assembly and the housing. This mediator absorbs and dampens shock vibrations, preventing them from reaching the lens while allowing controlled lens movement for focusing and stabilization, thus resolving the contradiction between shock resistance and image accuracy.
2Reliability
If vibration isolation components are added to the camera module, then shock resistance improves, but the device complexity increases
Solution Approach 1:
The elastic member serves multiple functions simultaneously: it provides vibration isolation, supports the lens assembly, enables focusing movement, and facilitates hand tremor compensation. By making this single component multi-functional, the patent avoids adding separate complex mechanisms while achieving reliable vibration isolation.
Solution Approach 2:
The elastic member is implemented as a flexible component that can deform elastically to absorb vibrations. This flexible element provides effective hand tremor compensation without requiring rigid, complex mechanical isolation structures, thus improving reliability while minimizing added complexity.
3Manufacturing precision
If the lens assembly is made movable for stabilization, then image capture accuracy improves, but the structure becomes more complex and vulnerable to shock damage
Solution Approach 1:
The elastic member provides a flexible mounting solution that allows the lens assembly to move smoothly for stabilization while inherently protecting against shock damage through elastic deformation. This flexible support structure achieves precise image capture without requiring complex mechanical guides or rigid mounting mechanisms.
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 apparatus effectively distributes stress from shocks and improves the accuracy of hand tremor compensation, ensuring clearer image capture by stabilizing the lens movement during device use.
Implementation Method 1
a first coil and a magnet configured to electromagnetically interact with each other so as to move the bobbin
Implementation Method 2
an elastic member including an inner frame coupled to the bobbin, an outer frame coupled to the housing, and a frame connection portion configured to connect the inner frame and the outer frame to each other
Data Source
AI summary
Embodiments provide a lens moving apparatus including a bobbin in which a lens is mounted, a first coil and a magnet configured to electromagnetically interact with each other so as to move the bobbin, a housing configured to accommodate the bobbin therein, an elastic member including an inner frame coupled to the bobbin, an outer frame coupled to the housing, and a frame connection portion configured to connect the inner frame and the outer frame to each other, and a support member connected to the elastic member and configured to support the housing, and the outer frame includes a first coupling portion coupled to the housing, a second coupling portion coupled to the support member, the second coupling portion being spaced apart from the first coupling portion, and a single connection portion configured to connect the first coupling portion and the second coupling portion to each other.