We design and manufacture narrow bandpass filters to operate from 400nm-5um with tolerances on the centre wavelength and full width half height (FWHM) of +/- 0.25%. With the production capability to assemble these filters into filter-wheels for inclusion on analytical equipment, our wheels and filters are used in applications such as those that monitor gas and moisture content on industrial lines, as well as observing crop growth and movement from space.

Narrow Bandpass filters
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For applications that monitor gas and moisture content on industrial lines