Zoom Lens Optical Axis Direction Adjustment for Wireless Communication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Communication devices using light for wireless communication face challenges in adjusting the optical axis direction, as lenses with short focal lengths facilitate coarse adjustments but struggle with fine adjustments, while lenses with long focal lengths facilitate fine adjustments but struggle with coarse adjustments.
Innovation Solution
Incorporating a zoom lens with a variable focal length allows for both coarse and fine optical axis direction adjustments by setting the focal length to a small value for coarse adjustments and a large value for fine adjustments, using a focal length adjusting mechanism and optical axis direction adjusting mechanism controlled by a control circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a lens with a short focal length (wide angle of view) is used, then coarse optical axis direction adjustment becomes easy, but fine optical axis direction adjustment becomes difficult
Solution Approach 1:
The patent applies a zoom lens with variable focal length that can dynamically change between wide-angle and telephoto modes. During coarse adjustment, the lens operates in wide-angle mode (short focal length) for easy positioning. During fine adjustment, the lens switches to telephoto mode (long focal length) for precise alignment. This dynamic parameter change resolves the contradiction by allowing the system to optimize for different adjustment stages.
Solution Approach 2:
The invention changes the focal length parameter of the lens based on the adjustment stage. By controlling the zoom lens to have a short focal length during coarse adjustment and a long focal length during fine adjustment, the system achieves both ease of operation and measurement precision. The focal length parameter is actively modified to match the required adjustment precision.
2Measurement precision
If a lens with a long focal length (narrow angle of view) is used, then fine optical axis direction adjustment becomes easy, but coarse optical axis direction adjustment becomes difficult
Solution Approach 1:
The zoom lens provides dynamic adaptability by switching between long and short focal lengths. For fine adjustment, the long focal length offers high precision. For subsequent coarse adjustments or initial positioning, the system switches to short focal length mode, making the operation easier. This dynamic switching resolves the contradiction between precision and ease of operation.
Solution Approach 2:
The system modifies the focal length parameter according to the adjustment requirements. When fine precision is needed, the focal length is set to a long value. When broader positioning is needed, the focal length is reduced. This parameter adaptation allows the lens to excel at different adjustment stages without being constrained by a fixed focal length.
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
Enables easy and precise alignment of the optical axis direction, improving the ability to automatically adjust and maintain alignment with the light source, enhancing communication device performance and reducing the risk of unexpected interception.
Implementation Method 1
a zoom lens 11 having a variable focal length as a lens for collecting signal light SL
Data Source
AI summary
A communication device includes a zoom lens that collects signal light.