Linear Variable Filter
Linear variable filter, also known as continuously variable filter changes its spectral properties along one dimension. For each physical point along one axis the filter spectral curve is shifted in wavelength domain. The change is oftentimes quasi-linear, hence the common name of linear variable filters.
A linear variable filter is manuactured by depositing many thin film layers with varying thickness. The thickness change results in change of filter spectral response.
Most typical continuously variable filters include low pass, high pass and band pass. Solaris Optics manufactures bespoke linear variable filters with custom size and spectral response.
Should you be interested to learn more about our capabilities for continuousl variable filters, please to not hesitate to get in touch!