# 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: |
    
DATA:
  - type: formula 3
    wavelength_range: 0.3 2.4
    coefficients: 2.533703 -0.0090417017 2 0.016851835 -2 0.00051005408 -4 -1.7651257e-05 -6 1.8665437e-06 -8
  - type: tabulated k
    data: |
        0.320 8.1968E-06
        0.330 3.2507E-06
        0.340 1.4276E-06
        0.350 6.9202E-07
        0.360 3.6622E-07
        0.370 1.9160E-07
        0.380 1.2344E-07
        0.390 8.1759E-08
        0.400 5.1341E-08
        0.420 4.0350E-08
        0.440 4.2271E-08
        0.460 3.3094E-08
        0.480 2.6832E-08
        0.500 1.9944E-08
        0.550 1.3150E-08
        0.600 2.3933E-08
        0.650 3.1129E-08
        0.700 2.2326E-08
        0.800 1.9127E-08
        0.900 2.1518E-08
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 3.33e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.607289
    Vd: 49.188575
    glass_code: 607492
    glass_status: preferred
    density:
      - value: 3390
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.1e-06
      - temperature_range: 293 573
        value: 9.1e-06
    dPgF: -0.001
    resistance:
        acid: 52.2
        phosphate: 2.2