Optical Imaging Apparatus Lens Segmentation for Actuator Weight Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Portable electronic devices face challenges in accommodating large and heavy actuators required for optical lens sets, which consume significant power and space, making it difficult to achieve optical image stabilization and focusing within limited spaces.
Innovation Solution
The optical imaging apparatus divides optical lenses into fixed and movable sets, where only the movable lens set is adjusted for focusing, zooming, and image stabilization, reducing the required driving force and actuator size, and incorporating actuators like voice coil motors, shape memory alloy motors, or piezoelectric motors to minimize weight and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire optical lens set is moved for focusing and image stabilization, then the optical characteristics can be adjusted, but the actuator size and weight increase significantly
Solution Approach 1:
The optical lens set is divided into a fixed lens set and a movable lens set. Only the movable lens set is driven by the actuator for focusing and image stabilization operations, while the fixed lens set remains stationary. This segmentation reduces the weight of the moving object (movable lens set) compared to moving the entire optical lens set, thereby reducing actuator size and power consumption while maintaining optical adjustment functionality.
2Force
If a large-sized actuator is used to drive the heavy optical lens set, then the required driving force is sufficient, but the device occupies more internal space
Solution Approach 1:
By segmenting the optical lens set into fixed and movable portions, the actuator only needs to drive the lighter movable lens set rather than the entire heavy lens set. This reduces the required driving force, allowing for a smaller-sized actuator that occupies less internal space within the portable electronic device.
3Force
If a large-sized actuator with large driving force is used, then the optical lens set can be moved effectively, but power consumption increases
Solution Approach 1:
The actuator only needs to provide sufficient driving force to move the movable lens set (a fraction of the total optical lens set weight) rather than the entire lens set. This significant reduction in required driving force directly lowers power consumption, making the system more energy-efficient for portable devices with limited power resources.
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
This configuration reduces the size and weight of the imaging apparatus, decreases power consumption, and allows for efficient optical image stabilization and focusing by minimizing the movement and weight of the movable lens set, thereby optimizing the use of actuators.
Implementation Method 1
The actuator is a voice coil motor, a shape memory alloy motor, a piezoelectric motor, or a combination of two or more thereof
Implementation Method 2
The actuator is a voice coil motor, a shape memory alloy motor, a piezoelectric motor, or a combination of two or more thereof
Implementation Method 3
The actuator is a voice coil motor, a shape memory alloy motor, a piezoelectric motor, or a combination of two or more thereof
Data Source
AI summary
An optical imaging apparatus includes a plurality of optical lenses. The optical lenses are arranged along an optical axis to capture an image in an image capture direction and project the image on an imaging plane. The plurality of optical lenses are divided into at least one fixed lens set and at least one movable lens set. The fixed lens set is fixedly disposed, and the movable lens set is configured to move relative to the fixed lens set, so as to adjust focal lengths of the optical lenses.