Optical Module Restraining Structure for Vibration-Stable Focusing
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Solution Overview
Problem
Conventional optical modules experience a deterioration in focusing performance due to vibrations caused by impacts, leading to abnormal movements of the movable portion relative to the fixed portion, which affects the stability and quality of photography and video recording.
Innovation Solution
An optical module design that includes a restraining component with a first restraining element made of plastic, a containing structure, and a linking structure made of metal, which contacts the movable portion and fixed portion to prevent abnormal movement, ensuring stability during vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a movable portion is designed to carry optical elements for focusing and zooming functions, then the optical functionality is improved, but the module becomes susceptible to abnormal movements during vibrations and impacts
Solution Approach 1:
A restraining component acts as an intermediary between the movable portion and the environment, absorbing vibration energy and preventing abnormal movements while allowing the movable portion to maintain its optical adjustment capabilities. The restraining component includes a restraining element that directly contacts the movable portion and a damping element that absorbs shock energy.
Solution Approach 2:
The damping element is pre-installed in the restraining component to provide cushioning protection before vibrations or impacts occur. This prior cushioning mechanism absorbs shock energy during vibrations and impacts, preventing the movable portion from experiencing abnormal movements that would compromise reliability.
2Reliability
If a restraining component is added to prevent abnormal movement during vibrations, then movement stability is improved, but the device complexity increases
Solution Approach 1:
The restraining component merges multiple functions into a single integrated structure: the restraining element directly contacts the movable portion to limit abnormal movements, while the damping element absorbs vibration energy. This combined structure provides both stabilization and vibration protection without requiring separate complex mechanisms.
Solution Approach 2:
The restraining component applies local quality by positioning the damping element specifically at locations where vibration energy is most impactful, and the restraining element at precise contact points with the movable portion. This targeted approach provides effective stabilization without adding complexity throughout the entire device.
Data Source
AI summary
An optical module is provided, including a fixed portion, a movable portion, and a driving component. The movable portion is connected with an optical element. The driving component is configured to drive the movable portion to move relative to the fixed portion. The movable portion is movable within a range of motion relative to the fixed portion.