# 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 1.95243469 0.0106442437 0.30710021 0.0456735302 1.56578094 110.28141
  - type: tabulated k
    data: |
        0.340 9.4875E-06
        0.350 3.6468E-06
        0.360 1.7652E-06
        0.370 9.6724E-07
        0.380 5.6345E-07
        0.390 3.9673E-07
        0.400 2.5160E-07
        0.420 1.4690E-07
        0.440 9.9438E-08
        0.460 7.3953E-08
        0.480 5.3854E-08
        0.500 3.9989E-08
        0.550 1.7542E-08
        0.600 1.4345E-08
        0.650 1.5541E-08
        0.700 1.1152E-08
        0.800 6.3694E-09
        0.900 1.4338E-08
        1.000 2.3909E-08
        1.200 3.8274E-08
        1.400 7.8260E-08
        1.600 1.0227E-07
        1.800 2.3104E-07
        2.000 5.8353E-07
        2.200 1.7282E-06
        2.400 6.2740E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 6.88e-06 1.25e-08 -3.24e-11 6.63e-07 7.1e-10 0.271
    nd: 1.834000
    Vd: 37.160487
    glass_code: 834372
    density:
      - value: 4430
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.6e-06
      - temperature_range: 293 573
        value: 7.1e-06
    dPgF: -0.0037
    resistance:
        climatic: 1.0
        acid: 4.2
        phosphate: 1.0