Biaxial Rotating Element for Optical Path Stabilization
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Solution Overview
Problem
Existing optical anti-shake mechanisms are complex, bulky, difficult to assemble, costly, and voluminous, failing to effectively stabilize the optical path in optical systems like cameras against external and hand-induced shaking.
Innovation Solution
A biaxial rotating element with a multiple-frame structure, driven by an electromagnetic module using permanent magnets and coils, pivots about two axes to compensate for optical path instability, featuring a simple, compact, and cost-effective design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing optical anti-shake mechanisms are used, then image stability is improved, but device complexity and volume increase
Solution Approach 1:
The anti-shake device is divided into functionally independent modules: a detection module for detecting optical path deviation, a driving module for generating driving forces, and a rotating element for executing compensation movements. This segmentation allows each module to be optimized independently, reducing overall complexity while maintaining effective shake compensation functionality
Solution Approach 2:
The rotating element serves multiple functions: it acts as both the detection target and the compensation execution mechanism, while the driving module provides both detection and actuation capabilities. This multi-functionality reduces the number of separate components needed, simplifying the overall device structure without compromising image stability
2Reliability
If existing optical anti-shake mechanisms are used, then optical path stabilization is improved, but manufacturing cost increases
Solution Approach 1:
The resilient plate structure provides automatic mechanical support and positioning functions without requiring additional support components. The plate's inherent elasticity enables it to serve as both a structural support element and a flexible mounting substrate for the rotating elements, eliminating the need for separate support frames or mounting brackets and thereby reducing manufacturing complexity and cost
3Reliability
If existing optical anti-shake mechanisms are used, then shake compensation is improved, but device volume increases
Solution Approach 1:
The rotating elements are positioned within the hollow interior space of the resilient plate structure, and the driving module components are arranged in a nested configuration where coils and magnets are interleaved. This nesting approach maximizes space utilization, allowing the device to achieve effective biaxial shake compensation in a compact form factor without requiring additional external mounting space
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 provides effective shake compensation with a structurally simple, easy-to-assemble, and compact anti-shake device that stabilizes the optical path, preventing image blurring while being economical and easy to integrate into optical systems.
Implementation Method 1
an electromagnetic driving device composed of permanent magnets and coils drives a biaxial rotating element to pivot about two axes
Implementation Method 2
the biaxial rotating element being a thin resilient plate
Data Source
AI summary
An anti-shake device for use in an optical system comprises a biaxial rotating element and a electromagnetic driving module. The biaxial rotating element is made by grooving a thin resilient plate to form a special multiple-frame structure. The biaxial rotating element, when driven by the electromagnetic driving module, makes limited pivotal movement about two axes so as to provide shake compensation. The electromagnetic driving module, composed of a plurality of permanent magnets and a plurality of coils, is supported and positioned by an inner support frame and an outer support frame, both of which have uniquely designed structures. The resultant anti-shake device is structurally simple, easy to assemble, compact in size, and relatively low-cost.