UV Optical Bandpass Filters
270-320nm


eSource Optics Ultraviolet (UV) Optical Bandpass Filters are available at specific peak wavelengths over the Ultraviolet wavelength range of 220nm to 320nm.  Both Narrow & Broad Bandwidth UV Optical Bandpass Filter designs are available and designated as "FNB" having a 20-25nm FWHM, and "FBB" having a 35-50nm FWHM. 

All UV Optical Bandpass Filters from 270nm to 296.7nm are available in standard 12.7mm, 25.4mm, and 50.8mm Diameters. UV Optical Bandpass Filters from 270nm to 296.7nm 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 296.7nm include a high purity UV grade Fused Silica substrate over-coated with the MDM filter coating. All UV filter substrates from 270nm to 296.7nm are highly polished to a 20-10 scratch & dig surface quality with less than 3 arc minutes parallelism. 

 

 

UV OPTICAL FILTER SPECIFICATIONS


Substrate Material: 270-296.7nm: Fused Silica       

300-326.1nm: Fused Silica & Filter Glasses

Diameter (Ø) Tolerance: ± 0.25mm

Thickness: ~2.5 - 8.0mm nominal                      

Surface Quality: 270-296.7nm: 
<=2
0-10 scratch-dig

Surface Quality: 300-326.1nm: 
<=80-50 scratch-dig

Parallelism270-296.7nm: <=3 arc min. or better 

Clear Aperture: Typically central 80%

Edge Chamfer270-296.7nm: ~0.5mm x 45 deg.

Filter FWHM:  FNB = 20-25nm 
                        FBB = 35-50nm
Filter Blocking: Approx 10-3 to 10-4 short-wave
VUV to long-wave UV to VIS typical 

Construction270-296.7nm: Unmounted and

Open-Faced; can be covered (contact us)

300-326.1nm: Edge Sealed & Mounted only

 

                        
 

Peak Wavelength (nm)

FWHM (nm)

Min. Peak Transmission

Diameter (mm)

Product #  

Price     

ORDER     
270 +/- 2.5 20 +/- 5 15 % T UV Optical Bandpass Filter 12.7 12270FNB $385.00 12270FNB
270 +/- 2.5 20 +/- 5 15 % T UV Optical Bandpass Filter 25.4

25270FNB

$450.00

25270FNB

270 +/- 2.5 20 +/- 5 15 % T UV Optical Bandpass Filter 50.8

50270FNB

$585.00

50270FNB

270 +/- 5 45 +/- 10 30 % T UV Optical Bandpass Filter 12.7

12270FBB

$385.00

12270FBB

270 +/- 5 45 +/- 10 30 % T UV Optical Bandpass Filter 25.4

25270FBB

$450.00

25270FBB

270 +/- 5 45 +/- 10 30 % T UV Optical Bandpass Filter 50.8

50270FBB

$585.00

50270FBB

280 +/- 2.5 Hg 20 +/- 5 15 % T UV Optical Bandpass Filter 12.7

12280FNB

$385.00

12280FNB

280 +/- 2.5 Hg 20 +/- 5 15 % T UV Optical Bandpass Filter 25.4

25280FNB

$450.00

25280FNB

280 +/- 2.5 Hg 20 +/- 5 15 % T UV Optical Bandpass Filter 50.8

50280FNB

$585.00

50280FNB

280 +/- 5 Hg 45 +/- 10 30 % T UV Optical Bandpass Filter 12.7

12280FBB

$385.00

12280FBB

280 +/- 5 Hg 45 +/- 10 30 % T UV Optical Bandpass Filter 25.4

25280FBB

$450.00

25280FBB

280 +/- 5 Hg 45 +/- 10 30 % T UV Optical Bandpass Filter 50.8

50280FBB

$585.00

50280FBB

290 +/- 2.5 20 +/- 5 15 % T UV Optical Bandpass Filter 12.7

12290FNB

$385.00

12290FNB

290 +/- 2.5 20 +/- 5 15 % T UV Optical Bandpass Filter 25.4

25290FNB

$450.00

25290FNB

290 +/- 2.5 20 +/- 5 15 % T UV Optical Bandpass Filter 50.8

50290FNB

$585.00

50290FNB

290 +/- 5 50 +/- 10 30 % T UV Optical Bandpass Filter 12.7

12290FBB

$385.00

12290FBB

290 +/- 5 50 +/- 10 30 % T UV Optical Bandpass Filter 25.4

25290FBB

$450.00

25290FBB

290 +/- 5 50 +/- 10 30 % T UV Optical Bandpass Filter 50.8

50290FBB

$585.00

50290FBB

296.7 +/- 2.5 Hg 20 +/- 5 15 % T UV Optical Bandpass Filter 12.7

12296FNB

$385.00

12296FNB

296.7 +/- 2.5 Hg 20 +/- 5 15 % T UV Optical Bandpass Filter 25.4

25296FNB

$450.00

25296FNB

296.7 +/- 2.5 Hg 20 +/- 5 15 % T UV Optical Bandpass Filter 50.8

50296FNB

$585.00

50296FNB

300 +/- 3* 25 +/- 5 20 % T UV Optical Bandpass Filter 12.5*

12300FNB

$385.00

12300FNB

300 +/- 3* 25 +/- 5 20 % T UV Optical Bandpass Filter 25.0*

25300FNB

$450.00

25300FNB

300 +/- 3* 25 +/- 5 20 % T UV Optical Bandpass Filter 50.0*

50300FNB

$595.00

50300FNB

300 +/-5 50 +/- 10 30 % T UV Optical Bandpass Filter 12.7

12300FBB

$385.00

12300FBB

300 +/-5 50 +/- 10 30 % T UV Optical Bandpass Filter 25.4

25300FBB

$450.00

25300FBB

300 +/-5 50 +/- 10 30 % T UV Optical Bandpass Filter 50.8

50300FBB

$595.00

50300FBB

307.1 +/- 3* Zn 25 +/- 5 20 % T UV Optical Bandpass Filter 12.5*

12307FNB

$385.00

12307FNB

307.1 +/- 3* Zn 25 +/- 5 20 % T UV Optical Bandpass Filter 25.0*

25307FNB

$450.00

25307FNB

307.1 +/- 3* Zn 25 +/- 5 20 % T UV Optical Bandpass Filter 50.0* 50307FNB $595.00 50307FNB
310.0 +/- 2.5 20 +/- 7.5 15 % T UV Optical Bandpass Filter 25.4 25310FNB $450.00 25310FNB
313 +/- 3* Hg 25 +/- 5 20 % T UV Optical Bandpass Filter 12.5*

12313FNB

$385.00

12313FNB

313 +/- 3* Hg 25 +/- 5 20 % T UV Optical Bandpass Filter 25.0*

25313FNB

$450.00

25313FNB

313 +/- 3* Hg 25 +/- 5 20 % T UV Optical Bandpass Filter 50.0*

50313FNB

$595.00

50313FNB

326.1 +/- 3* Cd 25 +/- 5 25 % T UV Optical Bandpass Filter 12.0*

12326FNB

$385.00

12326FNB

326.1 +/- 3* Cd 25 +/- 5 25 % T UV Optical Bandpass Filter 25.0*

25326FNB

$450.00

25326FNB

326.1 +/- 3* Cd 25 +/- 5 25 % T UV Optical Bandpass Filter 50.0*

50326FNB

$765.00

50326FNB

             

                                                           (<<<Back to 220nm-266nm Filters)                                                          

 

(* NOTE:  All 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.)
 

Availability: eSource Optics UV Optical Filters are supplied on a per order basis; lead-time is 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
  

 

 

                                                

                                                   
              eSource Optics / PMB 126 / 1225 Providence Rd. / Whitinsville, MA 01588

 VUV-UV Optical Filters & Mirrors/Windows/Lenses/Hardwood Optics Cases & Boxes