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Optical Filters are used to allow specific wavelength of light to be transmitted while the rest are blocked. The rejected wavelength can be absorbed, blocked, or reflected. These products are usually used for applications related to microscopy, spectroscopy, etc.

Simtrum offers a variety of Filters such as: Bandpass Filters, Edgepass Filters, Neutral Density Filters, Birefringent Filters and Fluorescence Filters.