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      * PL-3000 Photoluminescence Spectrometer
      * GLIS-3000 GEM Luminous Imaging 
      * bluLoop Multi-LED Light Source
      * HL-2000 Tungsten Halogen Light 
      * LS-1 Tungsten Halogen Light So
      * DH-2000 Deuterium Tungsten Halogen&
      * Balanced Deuterium Tungsten Halogen
      * Miniature Deuterium Tungsten Haloge
      * D-2000 Deuterium Light Sources
      * High-powered Continuous-wave Xenon 
       
      Product

      Light Sources>> Ultraviolet Sources>>Balanced Deuterium Tungsten Halogen Light Source  

      Balanced Deuterium Tungsten Halogen Light Source

      Get Balanced! The innovative DH-2000-BAL is the world's only balanced UV-NIR deuterium tungsten halogen source.

      We've applied our expertise in patterned dichroic filters to an innovation in light source technology to create the only combined-spectrum illumination source available that eliminates saturation and signal-to-noise problems associated with the D-alpha line in the deuterium source.

      Features

      • Eliminates D-alpha line in deuterium source

      • Stable output 215-2000 nm

      • Innovative filtering technology produces smooth spectrum across entire range

      The DH-2000-BAL Deuterium Tungsten Halogen Light Source combines the continuous spectrum of deuterium and tungsten halogen light sources in a single optical path, producing a powerful, stable output from 215-2000 nm.

      The DH-2000-BAL is available for Call for Price.

      About the D-alpha Line

      All deuterium-tungsten halogen sources have a D-alpha line, revealed as a jagged peak in the visible portion of the spectrum, that produces "unbalanced" output in the deuterium and tungsten halogen sources. Correcting for this deuterium line -- a sharp spectral feature near 655 nm -- is difficult. For example, if you adjust spectrometer integration time to reduce the intensity of this saturated spectral line, the efficiency of the system at UV wavelengths drops significantly, compromising signal-to-noise performance. Also, spectrometer efficiency is greatest in the same general spectral range as the 655 nm line, exaggerating its effects.

      Proprietary Filtering Technology

      Using the same high-precision patterned dichroic filter technology that distinguishes our Linear Variable Filters, the DH-2000-BAL balances the intensity of the deuterium and tungsten halogen sources, producing a "smoother" spectrum across the entire wavelength range and eliminating problems associated with saturation. By comparison, most combination UV-NIR sources can be adjusted for relative intensity only.

      Optical Fibers

      We recommend using our solarization-resistant optical fibers with all versions of the DH-2000-BAL.

      DH-2000-BAL Spectrum



      A spectrum of the DH-2000-BAL, taken with an HR4000-CG-UV-NIR in scope mode, shows a balanced response across the UV-VIS-NIR with no D-alpha line.

      DH-2000-BAL Specifications

      Dimensions: 150 mm x 135 mm x 319 mm
      Weight: 3.8 kg
      Power consumption:  25 W (deuterium); 20 W (tungsten halogen)
      Wavelength range: 215-400 nm (deuterium bulb)
      360-2000 nm (tungsten halogen bulb)
      Humidity:  5-95% without condensation at 40 °C
      Tungsten bulb voltage: adjustable from 4.5 to 11.5 volts
      Lamp current:  Operating 85 V/0.3A
      Lamp lifetime:  1,000 hours
      Lamp voltage:  Ignition 350 V/20°
      Current voltage drift:  <0.01% per hour
      Current voltage stability:  <5 x 10-6 peak-to-peak (0.1-10.0 Hz)
      Operating temperature:  5 °C - 35 °C
      Power requirements:  85-264 V 50/60 Hz
      Total power: 100 W
      Power consumption: 190 W maximum
      Warm-up time: 40 minutes (deuterium);
      20 minutes (tungsten halogen)
      Markings: CE; VDI/VDE 0160; EN 61010
       
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