# 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: 2.5613591 -0.01200739 2 0.020780357 -2 0.001425606 -4 -0.00011027477 -6 1.1477786e-05 -8
  - type: tabulated k
    data: |
        0.360 8.5821E-06
        0.370 3.0911E-06
        0.380 1.3027E-06
        0.390 6.1590E-07
        0.400 2.8624E-07
        0.420 1.0870E-07
        0.440 7.4313E-08
        0.460 5.9043E-08
        0.480 4.9982E-08
        0.500 3.9989E-08
        0.550 2.1939E-08
        0.600 2.8734E-08
        0.650 3.6335E-08
        0.700 2.7922E-08
        0.800 1.9127E-08
        0.900 1.4338E-08
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 4.227e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.620955
    Vd: 35.880852
    glass_code: 621359
    glass_status: preferred
    density:
      - value: 2660
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.5e-06
      - temperature_range: 293 573
        value: 8.9e-06
    dPgF: 0.0058
    resistance:
        acid: 1.0
        phosphate: 1.0