Laser Light Source Device Beam Dispersion for Contaminant Prevention
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Solution Overview
Problem
Conventional light source devices with lasers face issues of contaminant adhesion to optical components due to high energy density, leading to decreased output power, and existing solutions increase device size with the need for electrodes, power supplies, and fans.
Innovation Solution
A light source device incorporating a dispersing member that disperses laser beams into multiple beams with lower peak intensities, preventing high-energy concentration on optical components and reducing the risk of contaminant adhesion, while maintaining a compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high energy density laser beams are used, then output power is improved, but contaminant adhesion to optical components increases
Solution Approach 1:
The patent applies segmentation by dividing a single high-energy laser beam into multiple lower-energy beams using a beam splitting optical system. This includes using beam splitting plates or diffraction gratings to split the laser beam into several beams, thereby reducing the energy density on any single optical component while maintaining total output power. This directly resolves the contradiction by segmenting the harmful high-energy beam into multiple safer beams.
2Object-affected harmful factors
If electrodes and fans are added to remove contaminants, then contaminant removal is improved, but device size increases
Solution Approach 1:
The patent extracts and eliminates the need for additional contaminant removal components (electrodes, power supplies, fans) by preventing contaminant adhesion in the first place through beam splitting. The solution takes out the problematic high-energy concentration that causes adhesion, thereby removing the need for complex removal mechanisms and keeping the device compact.
Solution Approach 2:
The patent converts the harmful high-energy concentration into a beneficial low-energy distributed beam structure. By splitting the beam, the previously harmful high energy density becomes a distributed lower energy density that naturally prevents contaminant adhesion, eliminating the need for additional contaminant removal systems.
3Power
If laser beam energy is concentrated, then output power is improved, but photochemical reactions with air increase
Solution Approach 1:
The patent segments the concentrated high-energy beam into multiple lower-energy beams, reducing the energy density required to trigger photochemical reactions with air components such as siloxane and sulfur dioxide. This segmentation maintains total power output while distributing energy below the threshold for harmful photochemical reactions.
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 solution effectively prevents contaminant adhesion and maintains optical component performance, reducing the risk of degradation and heat absorption, while keeping the device size compact by dispersing laser beams into parallel, lower-intensity beams.
Implementation Method 1
a dispersing member disposed on a path of a laser beam emitted by the laser, and configured to disperse the laser beam into a plurality of dispersed beams with peak intensities lower than a peak intensity of the laser beam
Data Source
AI summary
A light source device includes: a light source including a laser; a dispersing member disposed on a path of a laser beam emitted by the laser, and configured to disperse the laser beam into a plurality of dispersed beams with peak intensities lower than a peak intensity of the laser beam to emit the dispersed beams; and an optical component disposed on paths of the dispersed beams.