Linear Variable Filters

A linear variable filters (LVF) are spatially variable response filters, in which the center wavelength of operation changes with position in a linear manner over the surface of the part.

With its broad blocking and transmission range, a single linear variable filter can replace an entire filter set.

Izovac Company produces linear variable filters for different wavelength in accordance with Customer requirements. 

IZOVAC Technologies currently offers bandpass filters for operation in the visible (380 nm – 700 nm), near infrared (700 nm – 1100 nm) and mid-infrared (up to 3.6 μm) spectral ranges. Nominal bandwidth is 1% (FWHM) of the center wavelength, with a peak transmission of 60- 90%. These can be delivered on a wide array of optical glass, fused silica, as well as other substrate materials with up to 60 mm length.

Short wave pass and long wave pass edge filters are also available over the same spectral range and substrate sizes. All these filters are fabricated using ion beam sputtering (IBS) technology in order to minimize scatter and absorption, and to make coating response totally insensitive to changes in temperature and humidity.


Advantages of the linear variable filters:

- high transmission and blocking coefficient

- wide spectral range

- wide selection of wavelength ranges



Please make an order on website or contact us for further assistance.

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