Periscope Optical System for Compact Zoom and Image Stabilization
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Solution Overview
Problem
Existing optical systems face challenges in achieving miniaturization while maintaining high optical quality and functionality, particularly in capturing images and videos with varying focal lengths and stabilizing against camera shake.
Innovation Solution
A periscope optical system comprising multiple optical modules with movable parts driven by piezoelectric elements and transmission elements, allowing for functions such as yawing, pitching, zooming, auto focus, and optical image stabilization, while ensuring stable and accurate movement of optical elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple lenses with different focal lengths are used to satisfy different image quality demands, then the image capture capability is improved, but the device size increases
Solution Approach 1:
A single lens assembly is designed to perform multiple functions (capturing images and videos with different focal lengths) through coordinated movement of multiple lens groups, eliminating the need for separate lenses for each function and thereby reducing device size
2Reliability
If optical image stabilizer with prism and actuators is used to compensate camera shake, then the image stabilization is improved, but the device complexity and size increase
Solution Approach 1:
The optical image stabilization function is merged with the existing lens assembly structure. The lens groups are designed to move not only for focusing and zooming but also for image stabilization, combining multiple functions into a single integrated system that reduces overall complexity
3Length of moving object
If folded optics system with triangular prism is used to compact the optical path, then the device length is reduced, but the manufacturing precision and alignment difficulty increase
Solution Approach 1:
Instead of using a triangular prism that folds the optical path in a single dimension, the patent uses multiple lens groups that move in multiple dimensions (including lateral and longitudinal directions) to achieve compact optical path arrangement, distributing the folding across multiple spatial dimensions and reducing alignment complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system achieves high stability and accuracy in optical performance, enabling improved image capture quality and stabilization, while being compact in design.
Implementation Method 1
movable parts driven by piezoelectric elements and transmission elements
Data Source
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AI summary
An optical system is provided. The optical system includes a first optical module (100) and a second optical module (200). The first optical module (100) is used for connected to a first optical element. The second optical module (200) is used for connected to a second optical element. A light enters the first optical module (100) along an incident direction (50), and the light is adjusted by the first optical module (100) to enter the second optical module (200) along a first direction (51). The incident direction (50) is not parallel with the first direction (51).