H-K9L Glass Chinese Equivalent BK7 Wafers

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H-K9L Glass

H-K9L is an excellent replacment for more expensive BK7 glass.

H-K9L is a great subsitute for fused silica when extremely hard glass is not required. H-K9L benefits includes:

  • low refractive index
  • low dispersion
  • excellent transmittance through-out the visible and near infrared spectra

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