# 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: 0.36 2.4
    coefficients: 0 1.5802363 0.0103578062 0.137504632 0.0548393088 1.60603298 147.982885
  - type: tabulated k
    data: |
        0.360 5.2500E-06
        0.370 1.9826E-06
        0.380 9.1052E-07
        0.390 5.0438E-07
        0.400 3.0020E-07
        0.420 1.5389E-07
        0.440 1.0304E-07
        0.460 8.1431E-08
        0.480 6.1610E-08
        0.500 4.8035E-08
        0.550 2.6340E-08
        0.600 2.8734E-08
        0.650 3.1129E-08
        0.700 2.2326E-08
        0.800 1.2745E-08
        0.900 2.1518E-08
        1.000 2.3909E-08
        1.200 3.8274E-08
        1.400 8.9485E-08
        1.600 8.9440E-08
        1.800 1.7293E-07
        2.000 3.2154E-07
        2.200 9.3489E-07
        2.400 2.4414E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 3.61e-06 1.09e-08 -2.95e-11 7.14e-07 9.64e-10 0.254
    nd: 1.669979
    Vd: 39.271035
    glass_code: 670393
    density:
      - value: 3260
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.9e-06
      - temperature_range: 293 573
        value: 7.8e-06
    dPgF: 0.0035
    resistance:
        climatic: 1.0
        acid: 1.0
        phosphate: 1.0