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VACUUM TECHNOLOGY

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THIN FILM TECHNOLOGY

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  • Optical Filters
  • Thin film coatings
    • UV Curing
    • Optical Filters
      • Interference filters
      • Flourescence filters
      • Notch Filters
      • Edge Filters
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      • Biomedical Filters
      • Flame Photometry Filters
      • Colour Correction Filters
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Optical Filters

Optical filters transmits a desired wavelength interval while simultaneously attenuating   all other wavelengths in the range of   UV (200nm) to IR(1100nm).  They find application in a host of fields such as clinicalchemistry, environmental testing, colorimetry, elemental and laser line separation, flame photometry, fluorescence, astronomy, etc.  There are very few companies in the world who make these high tech optical components.

  • Narrow band filters

    Interference filters

    Narrow band filters are fabricated by using advanced deposition process technology-Ion Assisted Deposition (IAD). This process produces highly dense, environmentally stable and durable thin films,...
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  • Flourescence filters

    Fluorescence is widely used for imaging applications in Biotechnology Analytical applications HHV special filters  with steep edges and narrow bandwidths are meant for...
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  • Notch Filters

    Notch filters provides high reflection at one more wavelength regions while maintaining high transmission for light at adjacent wavelengths. These filters are suitable for many fields, including ,...
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  • Edge Filters

    Short Wave & Long  Wave Pass Filters  collectively called edge filterer. SWP and LWP filters are designed  to efficiently separate light into two wavelength region Depending on...
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  • Neutral Density Filters

    Neutral Density  ( ND) Filters are used to reduce or modify intensify of all wavelengths of light equally, giving no changes in hue of colour rendition. The purpose of a standard photographic...
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  • Band pass filters

    HHV's Band pass filters used for biomedical analyser has typically 8-10nm bandwidth. Filters Centre wavelength range Optical densities Size...
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  • Biomedical Filters

    Narrow band interference filters pass a lmited portion of light centered around particular wavelength and attenuate all the other wavelength from  UV (200nm) to IR (1100nm) Each filter...
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  • Flame Photometry Filters

    The estimation of the alkali metals by Flame photometry is by far it most important application in routine chemical analysis. This technique has considerable appeal in the clinical chemistry field...
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  • Colour Correction Filters

    Dichroic colour coatings are an excellent alternative to dyed plastics due to their absorbing nature. HHV provdes a variety of colour correcting filters by electron beam evaporation with hard,...
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