Plasma Source Lamp House Correction Plates
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Solution Overview
Problem
Laser-sustained plasma light sources face issues with optical component distortions that increase pumping power requirements, plasma size, and decrease throughput due to aberrations in the pumping laser radiation and generated illumination.
Innovation Solution
A system and method using correction plates and reflector elements to modify pump illumination and broadband illumination, specifically employing aspherical correction plates and reflector elements to correct aberrations introduced by optical components, thereby improving the focus and collection efficiency of the plasma light source.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If optical components are used in laser-sustained plasma light sources, then the system can generate broadband illumination, but the optical components distort the pumping laser radiation and cause aberrations in the generated illumination
Solution Approach 1:
A correction plate is introduced as an intermediary optical element between the pump source and plasma lamp. This correction plate compensates for the aberrations introduced by other optical components in the system, thereby reducing distortion of the pumping laser radiation and improving the quality of generated illumination without eliminating the necessary optical components
Solution Approach 2:
The correction plate modifies the optical parameters of the pumping laser radiation by introducing opposite aberrations to cancel out the harmful distortions. This parameter adjustment allows the system to maintain broadband illumination generation while reducing the negative effects of optical component distortions
2Illumination intensity
If optical components are used to generate broadband illumination, then illumination quality is improved, but heat management issues arise due to increased pumping power requirements
Solution Approach 1:
The correction plate serves as a mediator that improves the efficiency of the optical system by reducing aberrations. This leads to better focusing of the pumping laser radiation, reduced energy waste, and consequently lower heat generation in the system while maintaining broadband illumination quality
3Reliability
If optical components are used in the plasma light source, then the system can sustain plasma and generate illumination, but the focus of the pump source is distorted and plasma size increases
Solution Approach 1:
The correction plate is positioned as an intermediary element that pre-corrects the pumping laser radiation before it reaches the plasma lamp. This ensures that the plasma is sustained with a tighter, more focused pump source, preventing plasma size increase while maintaining reliable plasma sustention
Solution Approach 2:
The correction plate performs preliminary correction of the optical aberrations in the pumping laser radiation before the radiation interacts with the plasma. This preliminary action ensures that the plasma is created and sustained with optimal focusing, preventing subsequent focus distortion and plasma size increase
4Illumination intensity
If optical components are used to generate illumination, then the plasma can produce broadband radiation, but collection efficiency decreases due to aberrations
Solution Approach 1:
The correction plate acts as an intermediary that improves the quality of both the incoming pumping radiation and the outgoing broadband illumination. By reducing aberrations in the optical path, it enables more efficient collection of the generated broadband radiation while maintaining plasma's ability to produce broadband radiation
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 reduces the required pumping power, generates a tighter, brighter plasma focus, and enhances the collection of illumination, improving the overall efficiency and throughput of the laser-sustained plasma light source.
Implementation Method 1
Laser-sustained plasma light sources operate by focusing laser radiation into a volume of gas contained within a plasma lamp in order to excite the gas, such as argon or xenon, into a plasma state
Implementation Method 2
a correction plate configured to receive the pump illumination and modify one or more characteristics of the pump illumination in order to correct one or more aberrations of the pump illumination introduced by one or more optical elements of the system
Implementation Method 3
a reflector element configured to receive the pump illumination and direct the pump illumination to a volume of gas contained within a plasma lamp
Implementation Method 4
the plasma lamp is configured to sustain a plasma within the volume of gas to generate broadband illumination
Data Source
AI summary
A plasma light source with lamp house correction is disclosed. The system may include a pump source configured to generate pump illumination. The pump illumination may be directed, by an elliptical reflector element, to a volume of gas contained within a plasma lamp in order to generate a plasma. The plasma may be configured to generate broadband illumination. The system may also include a correction plate and/or an aspherical elliptical reflector element configured to alter the pump illumination to correct for aberrations introduced by the plasma lamp. The system may also include an additional aspherical correction plate configured to alter the broadband illumination to correct for aberrations introduced by optical elements of the system.