For many of today's optical challenges, the mass-producibility of linear gradient filters offers a miniaturised solution. By compressing the assembly of a series of optical elements onto a single filter, users are able to create a single device spectroscopic device. Installing a linear gradient filter maintains the resolution required for most applications and allows the creation of a snapshot hyperspectral imager, which when placed in a scanning system becomes a push-scan hyperspectral imager with full resolution.

As an industry leader, our linear gradient filters include different combinations of UV/visible, visible/near IR, and shortwave IR spectra to meet the most challenging requirements, including parameters such as half bandwidths of 1% by central wavelength, peak transmittance greater than 70%, and +/- 0.5% linearity. In addition, we are able to deposit very high gradients of spectral variation on different substrates and optical glasses and have the ability to remove the encapsulating cover glass from existing sensors on the market and mount linear gradient filters directly onto the sensor.