Optics Balzers AG has launched the SoFi solar filter for sun simulators and other photovoltaic applications. The filter offers long-term stability and accurate reproducibility, even when manufactured in large volumes, and customer-specific nonstandard spectral characteristics can be accommodated. It increases the performance of solar simulators by converting the radiation of a technical light source into a spectral distribution equivalent to that of sunlight. It also delivers 400 °C temperature stability, provides conversion independent of glass thickness and is adaptable to customer-specific light sources and various solar spectra.
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