Periscopic Zoom Module Assembly for Precise Continuous Optical Zoom
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Solution Overview
Problem
Current mobile devices lack a miniaturized periscopic module capable of continuous optical zoom with high precision, and existing periscopic camera modules face assembly challenges due to complex structures and accumulative errors, leading to low yield and poor imaging quality.
Innovation Solution
A periscopic optical zoom module with an adjustable optical assembly comprising a bearing base, driving mechanism, zoom and compensating optical assemblies, and guide rods, allowing for compact design and precise assembly, enabling continuous optical zoom.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a periscopic module is used to achieve telephoto in limited space, then the device size is reduced, but the module becomes more complex and assembly difficulty increases
Solution Approach 1:
The optical system is divided into multiple independent lens groups (first lens group, second lens group, third lens group, fourth lens group) that can move relative to each other. Each group has specific optical powers and can be adjusted independently to achieve zoom and focus functions, reducing the overall module size while maintaining optical performance.
Solution Approach 2:
The patent implements a nested structure where the first lens group is positioned in front of the second lens group, and the third and fourth lens groups are positioned behind the second lens group. This nested arrangement allows multiple optical elements to be compactly organized within a limited space, achieving telephoto function without increasing module volume.
2Adaptability or versatility
If the number of lenses is increased to achieve optical zoom, then zoom capability is improved, but manufacturing precision requirements increase and yield decreases
Solution Approach 1:
The patent implements a dynamic optical system where the first lens group can move along the optical axis to change the effective focal length of the system. This dynamic adjustment mechanism enables continuous optical zoom from wide-angle to telephoto without requiring a fixed complex multi-element lens design, thereby reducing manufacturing and assembly precision requirements.
Solution Approach 2:
The patent changes the optical parameters of the system by moving the first lens group to different positions, thereby altering the effective focal length and achieving zoom. This parameter-based approach (changing position rather than redesigning the entire lens structure) simplifies manufacturing while maintaining versatile zoom capability.
3Device complexity
If a fixed focus lens is used, then the structure is simple, but digital zooming quality is poor
Solution Approach 1:
The patent transforms a static fixed-focus lens into a dynamic optical system where the first lens group can move along the optical axis. This dynamic capability enables true optical zoom by changing the effective focal length, providing high-quality imaging at different magnification levels without relying on poor-quality digital zooming algorithms.
Data Source
AI summary
Provided is an adjustable optical assembly (900), including a bearing base (921), a driving mechanism (910), a zoom optical assembly (200), and a compensating optical assembly (300). The driving mechanism (910) includes: a bracket (911) having a bottom end connected to the bearing base (921) and a top end having a top groove (911a) open upwards; guide rods (912, 913) supported on the top groove (911a), the guide rods (912, 913) coinciding with the direction of optical axes of the zoom optical assembly (200) and the compensating optical assembly (300); a zoom bearer (914); a compensating bearer (915); a zoom driving assembly; and a compensating driving assembly. The zoom bearer (914) and the compensating bearer (915) are both mounted on the guide rods (912, 913) and slidable along the guide rods (912, 913). Also provided are a corresponding periscopic optical zoom module and an assembly method therefor. According to the adjustable optical assembly (900), the bracket (911) and the guide rods (912, 913) are disposed on the bearing base (921), thereby effectively ensuring that the moving directions of a zoom group and a compensating group do not deviate from a main optical axis. Moreover, the adjustable optical assembly (900) is compact in structure and convenient to assemble, and facilitates large-scale mass production.