Lenticular Laser Beam Shaping for LiDAR Detection Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing laser systems lack efficient methods for manipulating and diverting laser beams to form specific shapes and patterns without moving parts, which limits their applications in fields such as LiDAR and security systems.
Innovation Solution
A system utilizing a lenticular sheet and a laser source to refract and reflect laser beams into desired shapes, including planes and cones, by adjusting the angle of incidence relative to the lenticular sheet, and optionally incorporating diffraction gratings to create interference patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a laser beam is directed at a lenticular sheet, then the laser beam can be refracted and reflected to form specific shapes and patterns, but the system requires precise alignment and positioning of optical components
Solution Approach 1:
The lenticular sheet serves as an intermediary optical element that transforms the laser beam shape without requiring complex alignment mechanisms. The sheet's built-in lenticular structure inherently provides the necessary refraction and reflection properties, simplifying the overall system complexity while achieving diverse beam shapes.
Solution Approach 2:
By changing the angle of incidence of the laser beam relative to the lenticular sheet, the system can produce different beam shapes and patterns. This parameter-based control allows shape transformation without requiring physical reconfiguration of the optical components, thereby reducing alignment complexity.
2Adaptability or versatility
If the angle of incidence is adjusted to manipulate the laser beam, then different shapes and patterns can be formed, but the system lacks automated control for optimizing detection performance
Solution Approach 1:
The system incorporates feedback mechanisms that automatically adjust the angle of incidence based on detection performance metrics. This closed-loop control optimizes the beam shape and pattern formation to enhance detection capabilities, eliminating the need for manual optimization and improving automation extent.
3Shape
If a lenticular sheet is used to divert the laser beam, then the beam can be directed into desired shapes, but the system may introduce optical aberrations and reduce beam quality
Solution Approach 1:
The lenticular sheet is designed with specific local optical properties that minimize aberrations while achieving the desired beam shaping. By carefully selecting the lenticular parameters and material characteristics, the system maintains high beam quality and reliability even when producing complex shapes and patterns.
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 the formation of stable laser patterns and cones that can be resized and manipulated for improved LiDAR detection and security applications, reducing false positives and enhancing object detection capabilities.
Implementation Method 1
A first portion of the plurality of rays of the incident laser beam is diverted by refraction to form a refracted beam of a first shape
Implementation Method 2
A second portion of the plurality of rays of the incident laser beam is reflected by a surface of the at least one of the plurality of parallel longitudinal lenticular lenses to form a reflected beam of a second particular shape
Data Source
AI summary
Systems and methods for scattering or deviating a laser beam are provided. A system utilizing a lenticular sheet and a laser source projecting a laser beam onto the lenticular sheet produces shapes such as laser cones. Minor adjustments of the laser source with respect to the lenticular sheet may vary the size and shape of the laser cone that provides for improved Light Detection and Ranging (LIDAR) systems. A diffraction grating added in the path of the laser beam causes a laser pattern of a matrix of lines to be produced which also provides for improved. Interference between multiple lenticular sheets may be used to deviate a laser beam to protect military assets from laser-guided projectiles and/or laser acquisition.