Switchable Light Path Optical Anti-Shake Apparatus
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Solution Overview
Problem
In optical systems with dual-lens image modules, such as cameras and smartphones, unexpected shaking can cause unstable imaging due to deviations in light paths, leading to obscure images, and existing solutions either require separate image processing for each lens or rely on digital compensation, which may not fully address the issue of optical stability.
Innovation Solution
An optical anti-shake apparatus with a switchable light path that includes a dual-axis rotary element and a drive module, along with a switching device using a magnet and coil system or piezoelectric elements, allows for the adjustment and switching of light paths to project images onto a common image capturing module, compensating for shaking and improving image clarity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If digital compensation mechanism is used to correct imaging, then image clarity can be improved, but device complexity and processing time increase
Solution Approach 1:
The patent replaces the digital compensation mechanism (software-based image processing) with an optical compensation mechanism (physical lens movement). The shake-compensating device detects light path deviation and uses a driving member to physically adjust the lens position, correcting the imaging issue at the optical level rather than through complex digital processing, thereby reducing device complexity and processing time
Solution Approach 2:
The patent introduces a shake-compensating device as an intermediary component between the lens and image capturing module. This device includes a light path detecting element that detects deviation and a driving member that adjusts the lens position, serving as a mediator to correct optical instability before image capture, thus avoiding the need for complex post-capture digital processing
2Adaptability or versatility
If dual-lens image modules are used, then adaptability is improved, but device complexity and processing requirements increase
Solution Approach 1:
The patent merges two separate light paths into a common imaging system by using a shake-compensating device that can adjust the lens position to accommodate light from either the first or second light inlet window. This allows both lenses to share a common image capturing module and processing pipeline, reducing device complexity while maintaining dual-lens adaptability
Solution Approach 2:
The patent makes the image capturing module universal by enabling it to receive light from either the first or second light inlet window through the adjustable shake-compensating device. The single image capturing module and processing system can handle images from both lenses, eliminating the need for separate processing systems and reducing overall device complexity
3Stability of the object's composition
If optical compensation mechanism is introduced, then image stability is improved, but device complexity increases
Solution Approach 1:
The patent employs a piezoelectric element, which is a thin film-based actuator, to drive the dual-axis rotary element and adjust the lens position. This thin film-based approach provides precise optical compensation for image stability while maintaining a compact and relatively simple structural configuration, avoiding the need for complex mechanical compensation systems
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 enables effective compensation for shaking in optical systems by switching between light paths, enhancing image stability and clarity without the need for separate image processing, thus improving the performance of dual-lens devices like smartphones and cameras.
Implementation Method 1
a switching device using a magnet and coil system or piezoelectric elements
Implementation Method 2
a switching device using a magnet and coil system
Data Source
AI summary
An optical anti-shake apparatus with a switchable light path is furnished in an optical system having two light paths of different directions. The optical system also comprises a lens module, an image capturing module, an anti-shake device and a switching device. The lens module corresponds to the image capturing module in position. The switching device comprises a fixing member, a rotary member and a driving module. The rotary member is pivotal about the fixing member. The driving module is located between the rotary member and the fixing member. The anti-shake device is located on the rotary member such that the driving module can drive and rotate the rotary member together with the anti-shake device in order to perform switching operations, and thereby the light of either of the two light paths can be directed toward the lens module so as to focus at the image capturing module.