Keo Scientific Narrow-Band Interference Filters
Description
We can provide imaging-quality narrowband (and wideband) interference filters custom-made to meet your particular scientific needs, anywhere in the 400-900 nm visible spectral range. Some popular wavelengths (and bandwidths) are 427.8 nm (3.0 nm), 557.7 nm (2.0 nm), 630.0 nm (2.0 nm), 777.4 nm (2.0 nm), and 865.0 nm (10.0 nm). Optically, each filter is custom-made to function optimally within the optical column of our Sentry-line of imagers, taking into account the particular ray angles impacting the filter (as required by our proprietary optical design) and the precise temperature of the filter-wheel (the optical performance of these precision filters depends heavily on operating temperature). Mechanically, our filters are designed to fit securely within the Sentry thermally stabilized filter-wheel. We orders filters in fairly large quantities from filter manufacturers and are able to pass some of the quantity discount on to the end-user, thereby being able to provide the filters at a relatively low cost.
Keo Scientific Narrow-Band Interference Filters
Specifications |
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|---|---|
| Central Wavelength: | 400-900 nm |
| Bandwidth (FWHM): | 427.8 nm |
| Peak Transmittance: | -- % |
For pricing, technical or any other questions please contact the supplier
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Ships from:
Canada
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Frequently Asked Questions
The narrow-band interference filters cover the 400-900 nm visible spectral range.
Yes, the filters are custom-made to meet your particular scientific needs.
Yes, each filter is custom-made to function optimally within the optical column of our Sentry-line of imagers.
The tolerance for the center wavelength (CWL) is ±0.15 x FWHM across the clear aperture.
The peak transmittance of the filters ranges from 65-95%, depending on the CWL and individual filter.