# this file is part of refractiveindex.info database
# refractiveindex.info database is in the public domain
# copyright and related rights waived via CC0 1.0

REFERENCES: |
    <a href="https://refractiveindex.info/download/data/2017/ohara_2017-11-30.agf">OHARA Zemax catalog 2017-11-30</a> (obtained from <a href="http://www.ohara-inc.co.jp/en/product/optical/list/">http://www.ohara-inc.co.jp</a>)<br>See also <a href="https://refractiveindex.info/download/data/2017/ohara_2017-11-30.pdf">OHARA glass data sheets</a>
COMMENTS: |
    Recommended 
DATA:
  - type: formula 2
    wavelength_range: 0.33 2.4
    coefficients: 0 1.37020077 0.00757631457 0.189397267 0.0300787515 1.24202324 131.350111
  - type: tabulated k
    data: |
        0.330 9.2084E-06
        0.340 3.4442E-06
        0.350 1.4228E-06
        0.360 6.3926E-07
        0.370 2.9716E-07
        0.380 1.6467E-07
        0.390 9.7732E-08
        0.400 6.4307E-08
        0.420 4.3734E-08
        0.440 3.8729E-08
        0.460 3.3094E-08
        0.480 2.6832E-08
        0.500 1.9944E-08
        0.550 1.3150E-08
        0.600 1.9137E-08
        0.650 2.5928E-08
        0.700 2.2326E-08
        0.800 1.2745E-08
        0.900 2.1518E-08
        1.000 3.9889E-08
        1.200 3.8274E-08
        1.400 8.9485E-08
        1.600 7.6624E-08
        1.800 1.5844E-07
        2.000 3.2154E-07
        2.200 1.0833E-06
        2.400 2.4414E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 2.78e-06 1.36e-08 -3.52e-11 4.7e-07 3.85e-10 0.22
    nd: 1.614047
    Vd: 54.990097
    glass_code: 614550
    glass_status: special
    density:
      - value: 3220
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.4e-06
      - temperature_range: 293 573
        value: 7.7e-06
    dPgF: -0.0017
    resistance:
        climatic: 2.0
        acid: 4.2
        phosphate: 1.0