Pulse Laser Material Aging Apparatus with Beam Expansion
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Solution Overview
Problem
Conventional light aging equipment for solar cells and materials faces challenges such as uniform illumination issues, excessive heating due to intense light sources, and inability to provide precise wavelength control, limiting the accuracy and efficiency of accelerated aging tests.
Innovation Solution
A material aging apparatus utilizing a pulse laser with a beam expansion assembly and a movable platform to deliver high-intensity, short-pulse UV light with adjustable power density and wavelength, allowing for precise irradiation of specific areas, while maintaining controlled temperature through a temperature control module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional light sources (solar simulator, xenon lamp, UV lamp) are used for accelerated aging test, then the product can be irradiated for aging, but the illuminance on the product in unit area is weakened due to large area light source
Solution Approach 1:
The patent divides the large area light source into multiple smaller light sources arranged in an array. Each light source independently irradiates a specific region of the product, achieving high illuminance density while maintaining coverage of the entire product area through the combined effect of multiple segmented sources.
Solution Approach 2:
The patent transitions from a single large-area light source to a two-dimensional array of multiple small light sources. This dimensional change allows simultaneous achievement of high local illuminance (through individual small sources) and broad coverage (through the array configuration), resolving the contradiction between illuminance intensity and light source area.
2Productivity
If the intensity of the light source is enhanced to increase aging rate, then the aging efficiency is improved, but the product temperature increases causing influence on aging factors
Solution Approach 1:
By segmenting the light source into multiple independent small sources, each operating at lower intensity, the patent achieves high overall aging rate through parallel irradiation of multiple product regions. The distributed configuration prevents concentrated heat buildup, maintaining product temperature within acceptable ranges while preserving aging efficiency.
Solution Approach 2:
The patent applies partial action by using multiple light sources at moderate intensity levels rather than one intense source. The cumulative effect of multiple partial irradiations achieves the desired aging rate without the excessive temperature rise that would result from a single high-intensity source.
3Area of stationary object
If large scale area aging is adopted, then the coverage is improved, but partial irradiations on specific product regions and projections of different illuminance on partial regions are not easily achieved
Solution Approach 1:
The patent segments the illumination system into multiple independently controllable light sources. This segmentation enables selective activation of specific light sources to target particular product regions, while the overall array configuration maintains broad coverage capability. Each segment can be independently adjusted for illuminance and positioning.
Solution Approach 2:
The patent introduces dynamic control capability where each light source in the array can be independently adjusted in terms of intensity, positioning, and activation state. This dynamic flexibility allows the system to adapt to different testing requirements, providing both full-area coverage and targeted partial irradiation as needed.
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 solution enhances the efficiency of light aging tests by providing precise and controlled exposure, reducing thermal effects and enabling the determination of material tolerability parameters without damaging the samples, thereby improving the accuracy and reliability of aging assessments.
Implementation Method 1
The pulse laser transmits a first beam to the beam expansion assembly. The beam expansion assembly expands the first beam to a second beam and projects the second beam onto the object
Data Source
AI summary
An aging apparatus including a pulse laser, a beam expansion assembly, and a platform configured to carry an object is provided. The pulse laser transmits a first beam to the beam expansion assembly. The beam expansion assembly expands the first beam to a second beam and projects the second beam onto the object.