Ø40 mm Interference Filter

An Interference Filter Suitable for Spectroscopy Experiments

The Ø40 mm interference filter is designed to select a precise wavelength during high school physics practicals. It allows students to observe and analyze spectral lines by limiting stray wavelengths, thus providing clear and usable results in the classroom.

Manufactured with multilayer coatings, this filter features a 10 nm bandwidth (FWHM) with a 3 nm precision. Its minimum transmission is 60%, while stray transmission remains below 1%, ensuring reliable and representative observation of the phenomena studied.

With its 40 mm diameter, it easily fits into all holders and effectively complements spectroscopy setups. This component serves as a practical tool to illustrate the emission and absorption of light by different elements, directly linked to the high school physics curriculum.