Optical System Aperture and Focus Mechanism
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Solution Overview
Problem
Existing camera module designs face challenges in achieving miniaturization while maintaining auto-focus, optical image stabilization, and adjustable light intake for electronic devices like smartphones.
Innovation Solution
The optical system incorporates a first optical element driving mechanism acting as an aperture mechanism to adjust light intake and a second optical element driving mechanism for auto-focusing and optical image stabilization, utilizing a combination of magnetic and rolling elements to enable precise movement and adjustment of optical elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple driving mechanisms are integrated into the camera module to achieve auto-focus, optical image stabilization, and adjustable aperture, then the functionality and image quality are improved, but the device size and structural complexity increase
Solution Approach 1:
The patent combines the aperture driving mechanism and the optical element driving mechanism into a single integrated structure. The first driving assembly drives both the movable element (aperture) and the movable assembly (optical elements) through a unified mechanical structure, reducing the overall volume while maintaining all required functions including auto-focus, optical image stabilization, and adjustable aperture.
Solution Approach 2:
The first driving assembly serves multiple functions simultaneously: it drives the movable element for aperture adjustment, drives the movable assembly for auto-focus, and enables optical image stabilization. This multi-functionality reduces the need for separate dedicated mechanisms, thereby minimizing the camera module size while achieving versatile functionality.
2Adaptability or versatility
If multiple driving mechanisms are integrated to achieve auto-focus, optical image stabilization, and adjustable aperture, then the functionality is improved, but the structural complexity increases
Solution Approach 1:
The patent merges the aperture driving mechanism and optical element driving mechanism into a single integrated driving structure. The first driving assembly uses a unified mechanical design with a movable element connected to the movable assembly, reducing structural complexity while maintaining all required functions.
Solution Approach 2:
The first driving assembly is designed as a universal mechanism that performs multiple functions: aperture control through the movable element, auto-focus through the movable assembly, and optical image stabilization. This multi-functional design eliminates the need for multiple separate complex mechanisms.
3Volume of moving object
If the aperture mechanism and optical element driving mechanism are integrated, then the device achieves miniaturization, but the precision of optical element movement may be compromised
Solution Approach 1:
The patent segments the integrated driving mechanism into distinct functional components: the movable element for aperture control and the movable assembly for optical element positioning. Each component has dedicated driving structures with precise mechanical connections, ensuring that miniaturization does not compromise the precision of optical element movement.
Solution Approach 2:
The patent employs magnetic driving assemblies that use magnetic fields to control the movement of the movable element and movable assembly. This magnetic actuation provides precise control with minimal mechanical contact, maintaining high positioning precision while enabling a compact integrated structure.
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 allows for continuous adjustment of aperture size and simultaneous achievement of auto-focusing and optical image stabilization, enhancing image quality and device functionality within a compact form factor.
Implementation Method 1
The first rolling assembly includes at least three first rolling elements. The first movable element rotates around the main axis relative to the first base and the first frame by the first rolling elements.
Data Source
AI summary
An optical system is provided and includes a first optical element driving mechanism, which includes a first fixed assembly, a first movable assembly, and a first driving assembly. The first movable assembly is configured to be connected to at least two first optical element, and the first movable assembly is movable relative to the first fixed assembly. The first movable assembly includes a first movable element. The first drive assembly is configured to drive the first movable assembly to move relative to the first fixed assembly. The first fixed assembly and the first movable assembly are arranged along a main axis, the first driving assembly is configured to drive the first movable element to move around the main axis, and a portion of the first driving assembly is disposed on the first movable element.