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  1. Industrial Ovens & Furnaces 24 Products available
  2. Filters 9 Products available
  3. Epoxy Coatings 8 Products available
  4. Measurement Gauges & Fittings 5 Products available
  5. Industrial Valves 4 Products available
  6. Mirrors 4 Products available
  7. Leak Detectors

    2 Products available
  8. Coating Services

    2 Products available
  9. Laboratory Ovens

    2 Products available
  10. Others Products 47 Products available

Filters

Our product range contains a wide range of Interference Filters, Flourescence Filters, Liquid nitrogen trap, Notch Filters and neutral density 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, which prevent drift of filter's peak wavelength with age. To improve the pass band energy and increase the attenuation in the blocking band, HHV introduce more cavities into the construction of our band pass filters.
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Flourescence Filters

  • features Extra-ordinary sensitivity , High specificity, Simplicity, and Low cost compared to other analytical techniques
Fluorescence is widely used for imaging applications in biotechnologyanalytical applications hhv special filters with steep edges and narrow bandwidths are meant for every imaging applications.
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Liquid Nitrogen Trap

  • Feature Liquid Nitrogen Trap provides optimum performance for diffusion Pumps
HHVs specially designed and fabricated Liquid Nitrogen Trap provides optimum performance for diffusion Pumps. Liquid Nitrogen Trap mounted above the Diffusion Pump reduces back streaming of diffusion oil vapor and this provides clean and better ultimate vacuum in the chamber. Liquid Nitrogen Trap is available in sizes ranging from 65 mm dia. up to 1000 mm dia
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Notch Filters

  • Wave length 340 - 1100nm
  • Optical Densities > OD3
  • Size 12.6 x 17.8 mm
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 , Raman Spectroscopy and Fluorescence instrumenations.
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Neutral Density Filters

  • Wavelength Range UV, VIS & NIR
  • Optical Densities 0.1 to 3
  • Size 10 - 50mm
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 neutral density filters are to give greater flexibility to change the aperture, exposure time andor motion blur of subject in different situations and atmospheric conditions.
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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 consists of three components optically cemneted together ; All dielectric band pass filterColor glassMetal-dielectric interference 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 as it provides a rapid and reliable means of estimating Sodium, Potassium, Calcium, Barium, Magnesium, Lithium, and etc., in body fluids. Compounds of alkali and lakaline earth metals are thermally dissociated into atoms at the temperature of a Bunsen burner flame and that some these atoms produced are further excited to a higher level.
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Colour Correction Filters

  • Applications Photography, Clothing Clothing stores etc,
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, chemically and mechanically stable dielectric oxide coatings. Colour correcting filters are used to correct the colour temperature of a light source. A conversion filter transforms 3200K light sourne to 5500K and 5500k light source to 3200K.
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Edge Filters

  • Wavelength Range 300-100nm
  • Optical Densities OD4
  • Size 10mm-50mm
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 the application Short wave and Long wave pass filters have steep transition between the region of the transmission and reflection.
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