A photochemical light source—especially a full-spectrum xenon lamp—often contains bands the experiment does not need: excess UV can trigger side reactions, excess IR brings thermal interference. The role of a filter is to "tailor the spectrum"—letting only the target band pass and blocking the rest. It is the "spectral valve" connecting the source and the reaction system.
Filters are commonly paired with a xenon light source, homogenizer, and light guide (e.g., the PLS-ST72 light guide) to jointly determine the spectral purity reaching the sample.
Watch the cut-on wavelength accuracy, out-of-band rejection (OD value), pass-band transmittance, and damage threshold. Under high-power xenon illumination, choose power-resistant, damage-resistant filters, and mind the incident-angle effect on center wavelength.
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They tailor the spectrum—pass the target band and block excess UV/IR—acting as the 'spectral valve' between the source and the reaction system.
Long-pass (cut UV), short-pass, band-pass (AQY monochromatic excitation), and neutral density ND (adjust intensity without changing spectral shape).
Cut-on wavelength accuracy, out-of-band rejection (OD value), pass-band transmittance, and damage threshold; under high-power xenon, choose power-resistant filters.
This article does not constitute a performance commitment; specific technical parameters are subject to the actual product documentation and mutual confirmation.
