Optical Element Drive Layout With Recessed Base for Thin Modules
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Solution Overview
Problem
The integration of optical elements with long focal lengths in electronic devices increases device thickness, hindering miniaturization efforts.
Innovation Solution
An optical element driving mechanism with a base having a stepped structure and a recessed accommodation portion, along with a movable part and a driving assembly, allows for the miniaturization of the device by optimizing the spatial arrangement of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an optical element with a long focal length is provided in an electronic device, then the optical performance is improved, but the thickness of the electronic device increases
Solution Approach 1:
The patent transitions from a traditional linear arrangement where the optical element moves along the optical axis to a configuration where the optical element moves in a direction oblique to the optical axis within a recessed accommodation portion. This dimensional change allows the optical element to achieve its required travel distance without increasing the overall thickness of the device, thereby maintaining optical performance while reducing device thickness.
Solution Approach 2:
The optical element is nested within a recessed accommodation portion formed in the base. This nesting structure allows the optical element and its driving mechanism to be housed within the existing device thickness, effectively hiding the movement mechanism within the base structure rather than adding to the overall device thickness.
2Length of stationary object
If the optical element driving mechanism is miniaturized, then the device thickness is reduced, but the stability of optical element movement may be compromised
Solution Approach 1:
The driving assembly is positioned specifically within the recessed accommodation portion of the base, concentrating the driving force application point. This localized quality ensures that the optical element is driven stably along its oblique path while the rest of the device maintains a compact profile. The recessed structure provides localized support and guidance that maintains movement stability without requiring the entire device to be thicker.
Data Source
AI summary
An optical element driving mechanism is provided, including a fixed part, a movable part, and a driving assembly. The fixed part includes a base. The base corresponds to an optical module. The movable part is connected to an optical element. The movable part is movable relative to the fixed part. The driving assembly drives the movable part to move relative to the fixed part. The base includes an accommodation portion, and the accommodation portion has a recessed structure.