LiDAR Detector Alignment Using Light Forming Markers
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Solution Overview
Problem
Current LiDAR systems face challenges in high-volume production due to time-consuming alignment methods that affect production capacity and efficiency, particularly in aligning detector elements for optimal return light collection.
Innovation Solution
A method involving light forming markers positioned at predetermined locations relative to detector elements, allowing for the alignment of transmitter channels by forming images of transmission beams and markers, facilitating efficient alignment and improving production capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional alignment methods are used for detector elements, then alignment accuracy can be achieved, but production time increases significantly
Solution Approach 1:
Light forming markers are pre-positioned on the detector package at locations corresponding to the optical centers of detector elements before detector elements are mounted. This preliminary setup provides immediate alignment references, eliminating the need for time-consuming post-assembly alignment procedures while maintaining high alignment accuracy.
Solution Approach 2:
Light forming markers serve as intermediary reference objects that facilitate the alignment process. These markers provide visible optical references that enable quick and accurate alignment of transmitter channels with detector elements, acting as a mediator between the mechanical mounting process and the optical alignment requirement.
2Manufacturing precision
If manual alignment procedures are performed for each detector element, then precise alignment can be achieved, but the alignment process becomes time-consuming
Solution Approach 1:
The light forming markers are designed to be self-aligning features on the detector package. When detector elements are mounted on the package, the pre-positioned markers automatically provide the correct alignment references, allowing the system to self-align without requiring extensive manual adjustment procedures for each detector element.
Solution Approach 2:
The invention replaces complex mechanical alignment procedures with optical referencing using light forming markers. Instead of relying on mechanical fixtures and manual adjustment mechanisms, the system uses optical references that can be quickly visualized and aligned, substituting mechanical complexity with optical simplicity.
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
This approach enables rapid and accurate transceiver alignment in LiDAR systems, enhancing light collection efficiency and supporting high-volume production by streamlining the alignment process.
Implementation Method 1
causing one or more light forming markers to emit light toward the imaging device
Implementation Method 2
forming images of the plurality of transmission beams and images of the one or more light forming markers
Data Source
AI summary
A device for transceiver alignment in the LiDAR system is provided. The device comprises a detector package and a plurality of detector elements mounted to the detector package. The device further comprises one or more light forming markers mounted to the detector package at predetermined positions with respect to the plurality of detector elements. The predetermined positions of the one or more light forming markers are configured to facilitate alignment of each of the plurality of detector elements to a corresponding transmitter channel of a plurality of transmitter channels.