eSource Optics Ultraviolet (UV) Optical Bandpass Filters are available at specific peak wavelengths over the Ultraviolet wavelength range of 220nm to 320nm, within the UV-C & UV-B Short to Mid-wave Ultraviolet spectrum. Both Narrow Very Narrow & Broad Bandwidth UV Optical Bandpass Filter designs are available and designated as "FNB" & "FVN" having a 10-25nm FWHM, and "FBB" having a ~50nm FWHM.
All UV Optical Bandpass Filters from 270nm to 326.1nm are available at select wavelengths in standard 12.5mm, 25.0mm, and 50.0mm Diameters. UV Optical Bandpass Filters from 270nm to 326.1nm are metal-dielectric-metal (MDM) design thin-film UV Bandpass Filters supplied as Unmounted and Open-Faced Filters. Open-Faced UV Optical Bandpass Filters from 270nm to 326.1nm include a high purity UV grade Fused Silica substrate over-coated with the MDM filter coating. All UV filter substrates from 270nm to 326.1nm have a highly polished scratch & dig surface quality with less than ~5 arc minutes parallelism. "FVN", "FNB" & "FBB" Optical Filters are available at other wavelengths from 193nm to 313nm upon request.
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UV OPTICAL FILTER SPECIFICATIONS
Substrate Material: 270-296.7nm: Fused Silica
300-326.1nm: Fused Silica & Filter Glasses
Diameter (Ø) Tolerance: ± 0.25mm
Thickness: ~1.5 - 2.5mm nominal (FNB & FBB)
~1.5mm (FVN & 300FBB Filters)
Surface Quality: 270-326.1nm
~60-40 to 80-50 scratch-dig
Parallelism: 270-296.7nm: <=3-5 arc min. or better
Clear Aperture: Typically central 85%
Edge Chamfer: ~0.5mm x 45 deg.
Filter Blocking: Approx 10-3 to 10-4 short-wave
VUV to long-wave UV to VIS typical
Construction: 270-296.7nm: Unmounted and
Open-Faced (FVN & FNB)
300-326.1nm: Edge Sealed & Mounted only (FNB)
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Peak Wavelength (nm)
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FWHM (nm)
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Min. Peak Transmission
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Diameter (mm)
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Product #
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Price
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ORDER |
| 270 +3/-0 |
10 +/- 2 |
12 % T UV Optical Bandpass Filter |
25.0 |
25270FVN
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$595.00 |
25270FVN
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| 280 +3/-0 |
10 +/- 2 |
12 % T UV Optical Bandpass Filter |
25.0 |
25280FVN |
$595.00 |
25280FVN |
| 280 +/-3 Hg |
10 +/- 2 |
12 % T UV Optical Bandpass Filter |
50.0 |
50280FVN |
$735.00 |
50280FVN |
| 280 +/-3 Hg |
25 +/- 5 |
20 % T UV Optical Bandpass Filter |
25.4 |
25280FNB |
$595.00 |
25280FNB |
| 289 +3/-0 |
10 +/- 2 |
15 % T UV Optical Bandpass Filter |
25.0 |
25289FVN |
$595.00 |
25289FVN |
| 289 +3/-0 |
10 +/- 2 |
15 % T UV Optical Bandpass Filter |
50.0 |
50289FVN |
$735.00 |
50289FVN |
| 296.7 +3/-0 Hg |
10 +/- 2 |
15 % T UV Optical Bandpass Filter |
25.0 |
25296FVN |
$595.00 |
25296FVN |
| 300 +3/-0 |
10 +/- 2 |
15 % T UV Optical Bandpass Filter |
25.0 |
25300FVN |
$595.00 |
25300FVN |
| 300 +3/-0 |
10 +/- 2 |
15 % T UV Optical Bandpass Filter |
50.0 |
50300FVN |
$735.00 |
50300FVN |
| 300 +/-3 |
25 +/- 5 |
20 % T UV Optical Bandpass Filter |
25.0 |
25300FNB
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$595.00 |
25300FNB
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| 300 +10/-0 |
40 +/- 8 |
20 % T UV Optical Bandpass Filter |
25.0 |
25300FBB
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$595.00 |
25300FBB
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| 307.1 +/-3* Zn |
25 +/- 5 |
20 % T UV Optical Bandpass Filter |
12.5** |
12307FNB
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$385.00 |
12307FNB
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| 307.1 +3/-0 Zn |
10 +/- 2 |
15 % T UV Optical Bandpass Filter |
25.0 |
25307FVN |
$595.00 |
25307FVN |
| 310.0 +3/-0 |
10 +/- 2 |
15 % T UV Optical Bandpass Filter |
25.0 |
25310FVN |
$595.00 |
25310FVN |
| 313 +/-3* Hg |
25 +/- 5 |
20 % T UV Optical Bandpass Filter |
12.5** |
12313FNB
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$385.00 |
12313FNB
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| 313 +3/-0 Hg |
10 +/- 2 |
15 % T UV Optical Bandpass Filter |
25.0 |
25313FVN |
$595.00 |
25313FVN |
| 313 +3/-0 Hg |
10 +/- 2 |
15 % T UV Optical Bandpass Filter |
50.0 |
50313FVN |
$735.00 |
50313FVN |
| 313 +/-3 Hg |
25 +/- 5 |
20 % T UV Optical Bandpass Filter |
25.0** |
25313FNB
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$595.00 |
25313FNB
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| 313 +/-3 Hg |
25 +/- 5 |
20 % T UV Optical Bandpass Filter |
50.0** |
50313FNB
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$735.00 |
50313FNB
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| 326.1 +/-3* Cd |
25 +/- 5 |
25 % T UV Optical Bandpass Filter |
12.5** |
12326FNB
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$385.00 |
12326FNB
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| 326.1 +/-3* Cd |
25 +/- 5 |
25 % T UV Optical Bandpass Filter |
25.0** |
25326FNB
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$595.00 |
25326FNB
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| 326.1 +/-3* Cd |
25 +/- 5 |
25 % T UV Optical Bandpass Filter |
50.0** |
50326FNB
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$965.00 |
50326FNB
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(<<<Back to 220nm-266nm Filters)
(** NOTE: All Filters listed with an ** that are 12.5mm, 25.0mm & 50.0mm Diameter Optical Filters from 300nm to 326.1nm are multiple element filters and are only supplied edge sealed and mounted; except 10nm FWHM "FVN" type Filters are open-faced only)
Availability: eSource Optics UV Optical Filters are supplied on a per order basis. Lead-times can vary and are typically within ~3-4 weeks.
Open-Faced UV Optical Bandpass Filters from 270nm to 296.7nm are fairly soft and must be handled with due care. For added durability and protection from the environment, UV filters can be special ordered with a UV Fused Silica cover window that is edge sealed to the Open-faced filter. For more information on covered & edge sealed UV Optical Filters and/or UV filter peak wavelengths not listed below, please contact eSource Optics.
UV Optical Bandpass Filters from 300nm to 326.1nm are multiple element filters and are only supplied edge sealed and mounted as 12.5mm, 25.0mm & 50.0mm Diameter Optical Filters.
All eSource Optics UV Optical Bandpass Filters are supplied with individual % Transmission Calibration Curves detailing normal incidence UV spectral performance characteristics. UV Optical bandpass Filters are mainly used in UV light source applications requiring a narrow spectral bandwidth and a high signal-to-noise ratio.
See typical VUV-UV Narrowband Filter "FNB" Transmission Curves
See typical VUV-UV Broadband Filter "FBB" Transmission Curves
For more information on UV Optical Bandpass Filters, please refer to our VUV-UV Optical Filter Information Page .
Also see eSource Optics VUV Narrowband Optical Bandpass Filters
