# 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: 0.34 2.4
    coefficients: 0 1.30923813 0.00838873953 0.114137353 0.0399436485 1.17882259 140.257892
  - type: tabulated k
    data: |
        0.340 6.2300E-06
        0.350 2.1029E-06
        0.360 7.8620E-07
        0.370 3.4312E-07
        0.380 1.6467E-07
        0.390 9.1333E-08
        0.400 5.4578E-08
        0.420 2.6846E-08
        0.440 2.4596E-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 1.2745E-08
        0.900 1.4338E-08
        1.000 2.3909E-08
        1.200 2.8691E-08
        1.400 8.9485E-08
        1.600 1.0227E-07
        1.800 3.4797E-07
        2.000 7.9961E-07
        2.200 2.0402E-06
        2.400 3.3299E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -4.92e-06 1.14e-08 -3.59e-11 5.24e-07 7.01e-10 0.247
    nd: 1.570989
    Vd: 50.799858
    glass_code: 571508
    density:
      - value: 2890
    thermal_expansion:
      - temperature_range: 243 343
        value: 9.1e-06
      - temperature_range: 293 573
        value: 1.09e-05
    dPgF: -0.0005
    resistance:
        climatic: 3.0
        acid: 1.0
        phosphate: 1.0