Any questions?

Please do not hesitate to contact us. We are ready to offer assistance and advice.

+49 (0) 6131 - 580 89-0

Please use our Callback Service:

CALLBACK!

UV BROAD BAND FILTERS

The UV broadband filter types DUG11, DUG11X and IRB are made of SCHOTT UV-transmitting filter glass UG11. Its typical secondary passband at about 720nm within the red spectral range has been blocked by means of vapour-deposited hard metal oxide layers on both sides. These oxide layers also function as a protective coating against environmental influences.

 

Properties of UV broadband filters:

  • Increased environmental resistance
  • Narrowband UV transmission
  • Blocking of the secondary pass band

Specifications of UV broad band filters

DUG11 DUG11X
Central wavelength ca. 340 nm ca. 320 nm
full width at half maximum ca. 70 nm ca. 100 nm
Transmission ≥ 70% ≥ 70%
Blocking avg. ≤ 10⁻⁵ (below 260 nm) ≤ 10⁻⁵ (below 260 nm)
≤ 10⁻⁸(420 nm – 649 nm) ≤ 10⁻⁸ (420 nm – 649 nm)
≤ 5 x 10⁻⁶ (650 nm – 799 nm) ≤ 5 x 10⁻⁶ (650 nm – 799 nm)
≤ 5 x 10⁻⁴ (800 nm – 999 nm) ≤ 5 x 10⁻⁴ (800 nm – 999 nm)
≤ 5 x 10⁻³ (1000 nm – 1200 nm) ≤ 5 x 10⁻³ (1000 nm – 1200 nm)
Dimension 50x50mm, customized 50x50mm, customized
Thickness 2,0 +/– 0,1 mm 2,0 +/– 0,1 mm

Please do not hesitate to contact us. We are ready to offer you assistance.