Dual Compensation Optical Module for Image Stabilization and Autofocus
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Solution Overview
Problem
Shaking during the use of electronic devices with optical systems can cause blurry images, necessitating a design for a small and improved optical system that compensates for motion.
Innovation Solution
An optical system with two compensation assemblies, including a holder and first and second compensation assemblies, each with movable optical elements driven by magnetic assemblies, to stabilize images by adjusting the position of optical elements based on environmental conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional optical system is used, then the structure is simple, but image stability deteriorates due to device shaking
Solution Approach 1:
The optical system is segmented into multiple functional modules: a first compensation assembly for optical image stabilization (OIS) and a second compensation assembly for auto-focusing (AF). Each assembly independently handles specific compensation tasks, allowing the system to maintain image stability while managing complexity through modular design. The OIS assembly includes movable optical elements that shift to counteract hand shaking, while the AF assembly adjusts focus independently.
Solution Approach 2:
The patent merges two compensation functions (OIS and AF) into a single integrated optical system. Both the first compensation assembly for stabilizing images against shaking and the second compensation assembly for auto-focusing are combined within the same optical path, sharing common structural elements like the holder and optical module interface, thereby achieving dual functionality without proportionally increasing overall system complexity.
2Volume of moving object
If the optical system size is reduced, then portability improves, but image compensation capability deteriorates
Solution Approach 1:
The optical compensation elements are nested within the existing optical module structure. The movable optical elements for OIS and AF are integrated into the optical path without requiring external housing expansions. The compensation assemblies are positioned within the optical module's internal space, allowing size reduction compared to traditional external stabilization systems while maintaining full compensation capability.
Solution Approach 2:
The patent utilizes multi-dimensional positioning of optical elements to achieve compensation in multiple directions simultaneously. The OIS assembly moves optical elements laterally to counteract hand shaking in various directions, while the AF assembly adjusts focus along the optical axis, effectively using different spatial dimensions for different compensation functions within a compact volume.
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
Enhances image stability by compensating for device motion, improving image quality through both optical image stabilization and auto-focusing mechanisms.
Implementation Method 1
the first compensation assembly includes a first optical element. The first optical element includes a substrate, a first microstructure and a second microstructure
Implementation Method 2
The first driving assembly is configured to drive the first movable portion to move between a first position and a second position relative to the fixed portion
Implementation Method 3
The second driving assembly is configured to drive the second movable portion to move relative to the fixed portion within a range of motion
Data Source
AI summary
An optical system is provided. The optical system includes a holder and a first compensation assembly. The holder is connected to an optical module. The first compensation assembly compensates a light. The first compensation assembly includes a first optical element. The light enters the optical module through the first compensation assembly.