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Deresheke (Langfang) Technology Co., Ltd
Chasing Light Classroom | Parallel Light Solar Simulator: A Comprehensive Guide from Principle to Application
Date: 2025-12-24Read: 1
Sun simulatorSolar Simulator is an optical device that creates artificial sunlight, with the core goal of reproducing the spectrum, illuminance, spot uniformity, and directionality of natural sunlight. ButParallel light source versionIt is specifically designed for scenarios that require highly parallel light beams, such as precision optical testing, photovoltaic component evaluation, etc. It can output artificial sunlight with "high collimation, uniform spot, and stable intensity", making it the "directional sunlight replication machine" in the laboratory.
oneA complete parallel light solar simulator consisting of four key components working together:
High brightness light source:Core power source, commonly xenon lamp (with a spectrum close to the sun), LED array (with long lifespan and adjustable spectrum), halogen lamp/Metal halide lamp(Low cost)
Optical modulation system:Beam shaper ", including collimating lens, arc imaging system, light tunnel, and integrating sphere, responsible for calibrating light rays into a parallel state
Spectral matching filter:Spectral "calibrator" uses standard filters such as AM1.5G, AM0, and AM1.5D to accurately match the output spectrum with natural sunlight
Uniform light system:Spot homogenizer, such as integrator, ensures uniform illumination of the spot on the test sample to avoid local brightness differences affecting the experimental results
Core feature: Why are parallel light sources irreplaceable?
Common classification: Divided by "light source type" and "performance level"
Classified by light source
Xenon lamp solar simulator:The spectrum is close to the natural sun and has a wide range of applications
LED Solar Simulator:Adjustable spectrum, long lifespan, no arc drift issues
Halogen lamp/metal halide lamp:The cost is relatively low, but the spectrum requires additional compensation to approach the sun
Classified by performance level (according to IEC 60904-9 standard)
Core indicators:Spectral matching, non-uniformity, and stability are key criteria for measuring the performance of parallel light sources in solar simulators.
AAA：As a high-precision level, it is highly adaptable to scenarios that require strict lighting conditions, such as scientific research experiments and precision photovoltaic device production testing.
Typical applications: These fields cannot do without it
The application scenarios of parallel light solar simulators cover multiple high-precision industries, with four core directions:
Photovoltaic (PV) testing:Solar cell efficiency testing, I-V curve measurementPhotovoltaic moduleAging and Performance Evaluation
Optical system testing:Telescope/lens collimation, imaging system for long-distance target simulation
Material and Environmental Testing:UV aging test and light resistance evaluation of materials
Aerospace:Simulate space sunlight (AM0 standard) and calibrate optical sensors
Advantages and limitations: A rational perspective“artificial sun”
Core advantages
Strong controllability:Spectrum and illumination can be customized, not affected by natural environment interference
High repeatability:Suitable for laboratory research and standardized testing of production lines
Widely applicable scenarios:From photovoltaics to aerospace, covering high-precision needs in multiple industries
Limitations to be improved
High cost:The purchase and maintenance costs of high-power systems are expensive
Consumables replacement:Xenon lamp system requires periodic replacement of bulbs
Energy loss:Highly parallel light design will reduce the overall energy utilization efficiency of the system
