Multi-zone filters

Multi-zone optical filters offer spatially varying spectral performance on a single substrate. We offer custom patterned as well as assembled multi-zone filters of various types.

Main features:

• Customization for size, spectral performance, and lay-out (number and size of zones)
• Different approaches are possible: patterning or assembling
• IBS sputtering technology guarantees reliability and no shifts in time
• Black absorbing coatings between zones
• High level of accuracy - up to 10 µm between zone
• These products demonstrate possibilities of ion-beam and plasma assisted reactive magnetron sputtering technologies. Cutting-edge vacuum coating systems MERIDIAN or LIDIZ are used for production.

Multi-zone optical filters (sometimes referred to as multi-spectral filters (MSF)) offer spatially varying spectral performance on a single substrate.
A technology of a multizone bandpass thin-film interference optical filters, integrated on one substrate. 
Is commonly used for space sensing of the Earth surface.

Example 1
4 zones filter

The four bands pass through the spectral intervals 450-520nm, 520-600nm, 620-700nm, 760-900nm (see graph).

Example 2
7 zones filter

A 7 zones filter is designed for small Earth remote sensing satellites.

For more information or a commercial proposal, please contact our experts: contacts.