# 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: 2.2762403 -0.0096874647 2 0.0092330378 -2 0.00038940853 -4 -3.8018733e-05 -6 2.0693225e-06 -8
  - type: tabulated k
    data: |
        0.320 5.8635E-06
        0.330 2.8330E-06
        0.340 1.4276E-06
        0.350 8.0126E-07
        0.360 4.9949E-07
        0.370 3.0695E-07
        0.380 2.0647E-07
        0.390 1.4615E-07
        0.400 1.1671E-07
        0.420 1.0525E-07
        0.440 1.1026E-07
        0.460 1.1150E-07
        0.480 1.0063E-07
        0.500 7.6326E-08
        0.550 3.5155E-08
        0.600 1.9137E-08
        0.650 3.1129E-08
        0.700 2.2326E-08
        0.800 2.5516E-08
        0.900 5.0310E-08
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -6.92e-06 1.28e-08 -1.19e-11 4.99e-07 -4.83e-10 0.09
    nd: 1.517277
    Vd: 69.563209
    glass_code: 517696
    glass_status: preferred
    density:
      - value: 2590
    thermal_expansion:
      - temperature_range: 243 343
        value: 9.6e-06
      - temperature_range: 293 573
        value: 1.15e-05
    dPgF: 0.0034
    resistance:
        climatic: 2.0
        acid: 1.0
        phosphate: 1.0