Interference Filters

Eureca offers a range of high-quality optical filters, which are based on interferences of dielectric films.

Due to the occurrence of multiple reflections at the front and back of the layer and the superposition of the partial beams or partial waves, these interfere with one another and extinguish or reinforce each other. By suitable combination of several layers and materials, a wide range of different filter characteristics can be created.

Band pass filters

Filters with small thicknesses (down to 0.6 mm) at different wavelengths; blocked from x-ray to NIR. Available for the visible spectral range (VIS) or the infrared spectrum (IR).

Fluorescence filters

Fluorescence filters are used to separate fluorescent light from the excitation light.