Periscope Camera Module Magnetic Actuation for Anti-Shake
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Solution Overview
Problem
Shaking during image capture affects the imaging quality of periscope cameras in mobile devices, necessitating simultaneous focus and zoom capabilities while implementing anti-shake functions to improve image quality.
Innovation Solution
An image acquisition module with magnetic components and coils that move the lens and light transmission components using magnetic fields, coupled with movement control and sensing components to adjust positions based on motion detection and image quality parameters, enabling optical image stabilization and improved image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the lens is moved to achieve focus and zoom functions, then the imaging quality is improved, but the device complexity increases due to additional moving components
Solution Approach 1:
The patent combines the focus adjustment mechanism and zoom mechanism into a unified optical system where the lens assembly includes both a focus lens and a zoom lens. The drive mechanism integrates multiple drive coils that can independently control the focus lens and zoom lens positions, merging multiple functions into a single coordinated system rather than separate mechanisms.
Solution Approach 2:
The drive mechanism is designed with universal functionality to perform multiple operations: the first drive coil controls focus adjustment while the second drive coil controls zoom. The magnetic field generation system serves dual purposes by enabling both focal plane adjustment and focal length change through the same basic electromagnetic actuation principle.
2Manufacturing precision
If anti-shake function is implemented by moving the lens, then image quality is improved, but the device complexity increases due to additional control mechanisms
Solution Approach 1:
The drive mechanism serves multiple functions: it performs focus adjustment, zoom, and anti-shake compensation all through the same electromagnetic actuation system. The control unit intelligently switches between these functions based on operational requirements, eliminating the need for separate mechanical stabilization mechanisms.
Solution Approach 2:
The control unit receives input signals that indicate the need for anti-shake compensation and automatically adjusts the lens position accordingly. The system monitors operational status and dynamically controls the drive coils to counteract shaking effects, implementing a closed-loop feedback mechanism for stabilization.
3Adaptability or versatility
If multiple moving components are used for focus, zoom, and anti-shake, then the functionality is improved, but the use of energy increases due to continuous magnetic field generation
Solution Approach 1:
The drive coils generate magnetic fields only when specific actions are required: focus adjustment, zoom, or anti-shake compensation. The control unit activates the appropriate coil based on the current operational mode, rather than maintaining continuous magnetic field generation, thereby reducing overall energy consumption while maintaining full functionality.
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 effectively stabilizes the image acquisition module, enhancing imaging quality by compensating for camera shake and optimizing lens and light transmission component positions, thereby improving the overall shooting experience.
Implementation Method 1
a first coil fixedly arranged on a housing of the image acquisition module, wherein the first coil generates a magnetic field when applied with a first driving signal, and drives the first magnetic component and the lens to move through the magnetic field
Implementation Method 2
the first coil generates a magnetic field when applied with a first driving signal, and drives the first magnetic component and the lens to move through the magnetic field
Implementation Method 3
a second coil fixedly arranged on the housing, wherein the second coil generates a magnetic field when applied with a second driving signal, and drives the second magnetic component and the light transmission component to move through the magnetic field
Implementation Method 4
the second coil generates a magnetic field when applied with a second driving signal, and drives the second magnetic component and the light transmission component to move through the magnetic field
Implementation Method 5
a light transmission component, configured to transmit ambient light to the lens through at least one reflection
Data Source
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AI summary
The present disclosure discloses an image acquisition module and a terminal. The image acquisition module includes: a lens; a first moving component, including: a first magnetic component fixedly arranged on the lens, and a first coil fixedly arranged on a housing of the image acquisition module, and the first coil generates a magnetic field when applied with a first driving signal, and drives the first magnetic component and the lens to move through the magnetic field; a light transmission component, configured to transmit ambient light to the lens through at least one reflection; and a second moving component, including: a second magnetic component fixedly arranged on the light transmission component, and a second coil fixedly arranged on the housing, and the second coil generates a magnetic field when applied with a second driving signal, and drives the second magnetic component and the light transmission component to move through the magnetic field.