Folded Camera Module With Dual-Axis Mirror Stabilization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing camera modules in portable electronic devices struggle to accurately correct shaking during video recording and adjust imaging direction when a subject is moving, leading to difficulties in capturing clear video footage.
Innovation Solution
A folded module with a housing, carrier, and rotation holder, featuring intersecting axes and magnets/coils for precise rotation of a reflective member, allowing the camera module to track a moving subject and correct shake, combined with a lens module for autofocus and zoom functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a camera module is provided with actuator to correct shake, then shake correction capability is improved, but the ability to accurately correct shaking during continuous video recording deteriorates
Solution Approach 1:
The patent implements a dual-axis rotation mechanism where the reflection module can rotate around both a first axis (for shake correction) and a second axis (for subject tracking). This dynamic multi-directional adjustment allows the system to adapt to continuous shaking movements and maintain accurate correction during ongoing video recording, resolving the limitation of single-axis actuators that cannot handle continuous shake effectively.
2Device complexity
If the camera module is fixed in position, then device simplicity is maintained, but the ability to track moving subjects deteriorates
Solution Approach 1:
The patent introduces a rotation holder that enables the reflection module to rotate around a second axis while the carrier rotates around a first axis. This dynamic configuration allows the camera module to track moving subjects by adjusting the reflection angle, while maintaining a relatively compact structure. The dual-axis rotation provides versatility for both shake correction and subject tracking without requiring a completely complex reconfigurable system.
3Adaptability or versatility
If the user manually moves the terminal to adjust imaging direction, then adaptability to moving subjects is improved, but user convenience and operational ease deteriorate
Solution Approach 1:
The patent implements an automated rotation mechanism where the carrier and rotation holder work together to automatically adjust the imaging direction. The system uses the rotation of the carrier around the first axis and the rotation holder around the second axis to track moving subjects without requiring manual user intervention. This self-adjusting capability maintains adaptability to moving subjects while significantly improving ease of operation, as the camera automatically follows the subject's movement.
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
Enables effective stabilization of images and videos by adjusting the camera's angle to maintain focus on a moving subject, enhancing image quality and facilitating features like Picture in Picture (PIP) functionality.
Implementation Method 1
The carrier may include a first magnet for driving, and the housing may include a first coil which faces the first magnet, in the housing
Implementation Method 2
The rotation holder may include a second magnet for driving, and the housing may include a second coil which faces the second magnet
Implementation Method 3
The carrier is rotatable, with respect to the housing, around a first axis formed by one rotating shaft ball, the rotation holder is rotatable with respect to the carrier around a second axis formed by two ball members
Data Source
AI summary
A folded module includes a housing, a carrier provided in the housing, and a rotation holder provided on the carrier and including a reflective member. The carrier is rotatable, with respect to the housing, around a first axis formed by one rotating shaft ball, the rotation holder is rotatable with respect to the carrier around a second axis formed by two ball members, and the first axis and the second axis intersect each other, and the one rotating shaft ball and the two ball members are provided together on a plane on which both the first axis and the second axis are provided.