Camera Actuator Assembly for Wide-Angle Shake and Distortion Control
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Solution Overview
Problem
Existing camera actuators face issues with image distortion and the inability to correct high-wide angle shake, requiring separate movement of the image sensor and lens, which leads to increased current consumption, load, and heat generation, while also needing additional space for movement.
Innovation Solution
A camera actuator design that allows the image sensor, lens, and substrate to rotate or move together, utilizing a housing, moving plate, movable parts, and ball parts to enable high-broadband correction with reduced current consumption and heat generation, suitable for ultra-slim and high-resolution cameras.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lens or camera module is tilted or moved for OIS, then image stabilization is achieved, but additional space for tilting or movement is required
Solution Approach 1:
The patent merges the lens and image sensor into a single movable unit, where both components are tilted or moved together as one integrated assembly. This combining of previously separate movable components reduces the overall space required while maintaining effective image stabilization functionality.
2Speed
If actuators for OIS move the lens excluding the image sensor, then tilting movement is achieved, but image distortion occurs
Solution Approach 1:
The patent combines the lens and image sensor into a single movable unit that tilts or moves together. This ensures that the relative positional relationship between the lens and image sensor is maintained during OIS operation, preventing image distortion while achieving the required tilting movement for shake correction.
3Device complexity
If the image sensor and lens are separated and only one is tilted, then movement control is simplified, but high-wide angle shake correction becomes difficult
Solution Approach 1:
The patent merges the lens and image sensor into a single movable unit that tilts or moves together as one assembly. This integrated approach maintains the relative positional relationship between components while enabling effective high-wide angle shake correction, as both components work together to correct image shake across the entire field of view.
4Reliability
If current OIS methods are used, then image stabilization is achieved, but current consumption and load increase
Solution Approach 1:
The patent combines the lens and image sensor into a single movable unit, which reduces the overall mass that needs to be accelerated and decelerated during OIS operation. This mass reduction leads to lower current consumption and reduced load on the actuators while maintaining effective image stabilization.
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 solution prevents image distortion, enables high-wide angle shake correction, reduces current consumption and heat generation, and allows for an ultra-slim, ultra-small camera module with improved image stabilization.
Implementation Method 1
a first ball part disposed between the moving plate and the movable part; and a second ball part disposed between the moving plate and the housing
Implementation Method 2
a coil disposed on the substrate part
Data Source
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AI summary
Disclosed in an embodiment of the present invention is a camera device comprising: a stationary part; a moving plate which is disposed on the stationary part; a first movable part which is disposed on the moving plate; a first drive part which tilts the first movable part about at least one of a first axis and a second axis; a first ball part which is disposed between the moving plate and the first movable part; and a second ball part which is disposed between the moving plate and the stationary part, wherein the first drive part includes a first coil disposed in the first movable part and a first magnet disposed in the stationary part.