Ohara Corporation
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Measurement Service Center

pixels_transOhara has established an independent service center to focus on materials measurement and analysis. This facility encompasses some of the world's most advanced optical metrology equipment and is capable of measuring glass ceramics, quartz, fused silica, calcium fluoride, liquids, polymers and other materials. We would be pleased to measure your optical materials. Please contact us for a quote.

Meaurement Service Center (PDF)


Contents of our Measurement and Analysis Service



Measurement of Spectral Transmission and Reflection

  • Transmission at visible and UV wavelength
  • Transmission at infrared wavelength
  • Internal transmittance



Measurement of Mechanical Characteristics

  • Knoop hardness
  • Photoelastic constant



Measurement of Thermal Characteristics

  • Linear expansion coefficient



Dimensional Measurements

  • Angles



Analysis of Glasses and Raw Materials

  • Major chemical components of the composition

Additional Measurement Information

Optical homogeneity( Refractive index variation over an aperture)

Refractive indices at vacuum UV area (around 157nm)

Photo Tour of Measurement Service Center

Measurement Center Links
1 Measurement Center
2 Refractive Indices of Solid
3 Temperature Coefficient
(of refractive index)
4 Birefringence
Additional Measurement Information
Optical Homogeneity
(Refractive index variation over an aperture)
Refractive Indices / Vacuum UV area
Photo Tour / Measurement Center

measurement center

measurement services 2


Glass Products