Optical Element Driving Mechanism for Long Focal Length Compactness
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Solution Overview
Problem
The challenge is to design an optical element driving mechanism that allows for the miniaturization of electronic devices equipped with long focal length optical elements, without increasing the device's thickness.
Innovation Solution
The proposed optical element driving mechanism includes a movable part connected to an optical element, a fixed part with an outer frame and base, a driving assembly for generating driving force, a circuit assembly for external connectivity, and a connecting element for structural integration. This configuration enables the optical element to move relative to the fixed part, allowing for compact device design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a long focal length optical element is provided in an electronic device, then the optical performance is improved, but the thickness of the electronic device increases
Solution Approach 1:
The optical system is divided into multiple lens elements (first lens element, second lens element, third lens element, fourth lens element, and fifth lens element) with different focal lengths and optical powers. This segmentation allows the achievement of long focal length optical performance through the combined effect of multiple elements rather than a single thick element, thereby improving optical performance while controlling device thickness.
Solution Approach 2:
The patent employs a compact nested arrangement where multiple lens elements are positioned closely together along the optical axis. The lens elements are arranged in a sequence that maximizes space utilization, with each element contributing to the overall optical function. This nesting approach enables long focal length capability while maintaining a compact overall thickness.
2Measurement precision
If multiple lens elements are arranged to achieve long focal length, then optical performance is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple lens elements into a single integrated optical assembly where the elements work together as a unified system. The lens elements are arranged in a fixed sequence with specific spacing, forming a compact module that achieves long focal length performance. This merging approach reduces the need for complex individual mechanisms for each element, thereby managing overall device complexity while improving optical performance.
Data Source
AI summary
An optical element driving mechanism is provided, including a movable part, a fixed part, a driving assembly, a circuit assembly, and a connecting element. The movable part is for connecting an optical element. The fixed part includes an outer frame and a base, wherein the movable part is movable relative to the fixed part. The driving assembly is for generating a driving force to drive the movable part to move relative to the fixed part. The circuit assembly is for connecting to an external circuit. The circuit assembly includes a first terminal. The outer frame is fixedly connected to the base via the connecting element.