Image Pickup Apparatus With Dual-Axis Motion for Optical Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image pickup apparatuses face challenges in miniaturization due to heavy lens bodies requiring large driving forces, and alignment difficulties during assembly affect optical performance.
Innovation Solution
An image pickup apparatus design with a movable component and a sensor component, driven by first and second driving components to move perpendicular and parallel to the optical axis, respectively, allowing for miniaturization and simplified alignment, incorporating voice coil motors and connectors for precise movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a glass lens body is adopted to improve image pickup quality, then image quality is improved, but the weight of the lens body increases greatly
Solution Approach 1:
The patent replaces the traditional mechanical driving mechanism (coils and magnets) with a piezoelectric actuator that utilizes piezoelectric effect to drive the lens body. This substitution reduces the complexity and size of the driving mechanism while maintaining the ability to drive the heavy glass lens body for focusing and anti-shake operations
2Reliability
If the lens body weight increases, then image pickup quality is improved, but the driving mechanism size increases
Solution Approach 1:
The patent replaces the traditional mechanical driving mechanism (coils and magnets) with a piezoelectric actuator that utilizes piezoelectric effect to drive the lens body. This substitution reduces the complexity and size of the driving mechanism while maintaining the ability to drive the heavy glass lens body for focusing and anti-shake operations
Solution Approach 2:
The piezoelectric actuator is designed to perform multiple functions: it can drive the lens body along the optical axis for focusing, and also drive it perpendicular to the optical axis for anti-shake operations. This multi-functionality reduces the overall device complexity by eliminating the need for separate driving mechanisms for different operations
3Adaptability or versatility
If focusing drive and anti-shake drive are arranged separately in lens and sensor, then functional separation is achieved, but alignment difficulty increases during assembly
Solution Approach 1:
The patent merges the focusing and anti-shake functions into a single integrated driving system using one piezoelectric actuator. The control unit coordinates the piezoelectric actuator to perform both focusing (optical axis movement) and anti-shake (perpendicular movement) operations, eliminating alignment issues between separate drives while maintaining functional versatility through coordinated control
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 miniaturization of the image pickup apparatus while improving optical axis alignment and image quality by reducing the need for large driving forces and integrating anti-shake and focusing functions without disturbing the lens position.
Implementation Method 1
The coil is fixed on a circumference of a lens body frame, so that after the coil is electrified to generate a magnetic field, the lens body moves under an electromagnetic force on the optical axis
Implementation Method 2
driving component used for driving the sensor component to move in the direction of the optical axis
Data Source
AI summary
The present invention discloses an image pickup apparatus, a camera and a mobile electronic device. The image pickup apparatus comprises a housing; a movable component and a fixed component, the fixed component comprising a lens with an optical axis, and the movable component comprising a moving frame and a sensor component; a first connector movably connecting the movable component with the fixed component; a first driving component used for driving the movable component to move in a direction perpendicular to the optical axis; a second connector movably connecting the moving frame with the sensor component; and a second driving component used for driving the sensor component to move in the direction of the optical axis. The image pickup apparatus coincides with the development direction of “miniaturization”, and facilitates optical axis alignment during assembly, thus improving the image pickup quality of the image pickup apparatus.