Light Detection Device for Vibration-Resistant Beam Displacement and Angle Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing light detection devices for lidar and optical communication systems face challenges in accurately detecting displacement and angle changes of light beams due to vibration, leading to performance deterioration and maintenance issues, particularly when using multiple sensors which can introduce errors.
Innovation Solution
A light detection device employing a diffraction element to diffract the light beam and a light detection element with multiple receivers to determine displacement and angle changes based on the quantities of diffracted light, improving detection accuracy and speed while reducing device size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two different sensors are used to detect displacement and angle change separately, then detection coverage is improved, but detection accuracy deteriorates due to errors between sensors caused by vibration
Solution Approach 1:
The patent combines displacement detection and angle change detection into a single integrated detection system using one sensor that simultaneously measures both parameters from a single beam of light, eliminating the synchronization errors and vibration-induced discrepancies that occur when using separate sensors
Solution Approach 2:
The detection system is designed to perform multiple functions (displacement detection and angle change detection) using a single sensor and beam processing approach, making the system both versatile and accurate without requiring multiple specialized sensors
2Reliability
If optical component displacement is reduced to maintain performance, then device reliability is improved, but device complexity increases due to active reduction mechanisms
Solution Approach 1:
The patent replaces complex mechanical active reduction mechanisms with an optical detection and compensation approach, using beam analysis and computational methods to maintain performance stability without requiring physical intervention mechanisms
Solution Approach 2:
The system uses the light beam itself as the sensing medium, where the beam's interaction with the optical component directly provides the measurement information needed, eliminating the need for separate active reduction systems
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
Enhances the accuracy and speed of detecting light beam displacement and angle changes, minimizing errors and enabling efficient operation in vibrating environments and prolonged use without significant performance degradation.
Implementation Method 1
a diffraction element to diffract a beam of light that is incident on the diffraction element... The diffraction element generates beams of the diffracted light by dividing the beam of light
Data Source
AI summary
A light detection device includes a diffraction element and a light detection element. The diffraction element diffracts a beam of light that is incident on the diffraction element. The light detection element includes light receivers to receive diffracted light. The diffraction element generates beams of the diffracted light by dividing the beam of light. The light detection element determines a displacement of the beam of light relative to the diffraction element on the basis of quantities of light of the beams of the diffracted light. The light detection element determines an angle change of the beam of light relative to the diffraction element by dividing the quantity of light of one of the beams of the diffracted light.