# 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: 0.31 2.4
    coefficients: 0 1.2828627 0.0122902399 0.247647429 -0.00613142361 1.10383999 106.883378
  - type: tabulated k
    data: |
        0.310 4.3712E-06
        0.320 2.0334E-06
        0.330 1.0128E-06
        0.340 5.3694E-07
        0.350 2.7494E-07
        0.360 1.5298E-07
        0.370 9.5760E-08
        0.380 6.1092E-08
        0.390 4.0610E-08
        0.400 2.8778E-08
        0.420 2.0114E-08
        0.440 2.1072E-08
        0.460 1.8349E-08
        0.480 1.5310E-08
        0.500 1.1955E-08
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 1.0355E-08
        0.700 1.1152E-08
        0.800 6.3694E-09
        0.900 1.4338E-08
        1.000 1.5931E-08
        1.200 1.9118E-08
        1.400 1.1197E-07
        1.600 6.3822E-08
        1.800 1.7293E-07
        2.000 3.8663E-07
        2.200 1.4788E-06
        2.400 4.0245E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 2.13e-06 1.22e-08 -3.98e-11 3.47e-07 7.94e-10 0.23
    nd: 1.603112
    Vd: 60.641080
    glass_code: 603607
    density:
      - value: 3430
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.2e-06
      - temperature_range: 293 573
        value: 7.3e-06
    dPgF: -0.0019
    resistance:
        climatic: 3.0
        acid: 51.2
        phosphate: 2.2