Dual-Axis Camera Module Structure for Stabilization and Autofocus
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Solution Overview
Problem
Conventional camera modules suffer from image quality deterioration during image stabilization as only the lens moves or rotates, while the image sensor remains fixed, leading to suboptimal performance in auto focusing and image stabilization functions.
Innovation Solution
The camera module incorporates a design where both the lens and image sensor can move independently to enhance image stabilization and auto focusing capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only the lens moves or rotates during image stabilization, then the structure is simple, but the image quality deteriorates
Solution Approach 1:
The patent divides the camera module into independently movable components: the lens assembly and the image sensor assembly. Each can move separately along the optical axis, allowing the lens to focus while the image sensor compensates for shaking, thereby maintaining image quality without requiring a completely complex integrated system
Solution Approach 2:
The patent introduces dynamic movement capability to both the lens assembly and the image sensor assembly along the optical axis. The lens can move for auto-focusing while the image sensor simultaneously moves for shake compensation, creating a dynamic system that adapts to different operational requirements and improves overall image quality
2Adaptability or versatility
If the lens and image sensor move independently, then the image stabilization and auto focusing functions are enhanced, but the device complexity increases
Solution Approach 1:
By segmenting the camera module into separate lens assembly and image sensor assembly that can move independently, the patent enables specialized functions for each component while maintaining overall system versatility. The lens assembly handles auto-focusing while the image sensor assembly handles shake compensation
Solution Approach 2:
The patent creates a multi-functional system where the lens assembly and image sensor assembly can perform multiple functions: the lens assembly provides both optical focusing and can participate in shake compensation, while the image sensor assembly provides both image capture and active shake correction, thereby enhancing overall system adaptability
Data Source
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AI summary
A camera module is disclosed. The camera module includes a camera housing, a camera assembly including a lens and an image sensor, at least a portion of the camera assembly being disposed inside the camera housing, and a guide plate connected to the camera assembly and the camera housing. The camera assembly is rotatable with respect to each of a first rotation axis and a second rotation axis, which are substantially perpendicular to an optical axis L of the lens. The guide plate includes a central portion disposed in a peripheral portion of the lens, a first portion and a second portion, which extend from the central portion in a direction of the first rotation axis and are rotatably connected to the camera assembly, and a third portion and a fourth portion, which extend from the central portion in a direction of the second rotation axis and are rotatably connected to the camera housing.