Optical Member Driving Mechanism for Thin Long-Focal Cameras
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Solution Overview
Problem
Conventional consumer electronic devices with long focal length lenses face challenges in maintaining thinness due to increased thickness, which complicates the design of thin and convenient devices.
Innovation Solution
An optical member driving mechanism comprising a first movable portion, a fixed portion, and a driving assembly that allows the optical member to adjust its emission direction by rotating around multiple axes, enabling flexible positioning of the optical member within the device without increasing thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lens with a long focal length is disposed in the electronic device, then the photography or recording function is improved, but the thickness of the electronic device is increased
Solution Approach 1:
The patent introduces a movable portion that can rotate around a first axis perpendicular to the optical axis, enabling the optical member to deflect light in a direction orthogonal to the traditional focusing plane. This dimensional change allows the system to achieve focus adjustment without extending the optical path length, thereby maintaining thin device profile while preserving photography function.
Solution Approach 2:
The patent employs a dynamic movable portion that can rotate around the first axis, transforming the static optical path into a dynamic one. By rotating the movable portion, the optical member's orientation changes, enabling focus adjustment and light deflection without increasing the device's thickness. This dynamic mechanism resolves the contradiction between maintaining long focal length functionality and keeping the device thin.
2Adaptability or versatility
If the optical member is positioned to adjust emission direction, then light path manipulation is improved, but the device structure becomes more complex
Solution Approach 1:
The patent combines the focus adjustment function and light deflection function into a single movable portion that rotates around the first axis. This merging of functions reduces the need for separate adjustment mechanisms, thereby simplifying the overall device structure while maintaining versatile light path manipulation capability.
Solution Approach 2:
The movable portion serves multiple functions: it adjusts the focal position by changing the optical member's orientation and simultaneously deflects light in the direction perpendicular to the optical axis. This multi-functionality reduces the number of components needed, simplifying the device structure while enhancing light path manipulation versatility.
Data Source
AI summary
An optical member driving mechanism is provided. The optical member driving mechanism is configured to hold an optical member and drive the optical member to move. The optical member driving mechanism includes a first movable portion, a fixed portion, and a driving assembly. The first movable portion is movable relative to the fixed portion. The driving assembly is configured to drive the first movable portion to move relative to the fixed portion.