# 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: 0.33 2.4
    coefficients: 0 1.71203689 0.0107724134 0.255989588 0.0488593504 1.81456998 136.359013
  - type: tabulated k
    data: |
        0.330 1.0273E-05
        0.340 4.0967E-06
        0.350 1.9868E-06
        0.360 1.1048E-06
        0.370 6.5702E-07
        0.380 4.2112E-07
        0.390 2.6553E-07
        0.400 1.8681E-07
        0.420 1.1216E-07
        0.440 8.5059E-08
        0.460 6.6490E-08
        0.480 4.9982E-08
        0.500 3.5972E-08
        0.550 1.3150E-08
        0.600 1.4345E-08
        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 5.5844E-08
        1.600 7.6624E-08
        1.800 1.5844E-07
        2.000 3.2154E-07
        2.200 9.9038E-07
        2.400 2.6597E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 3.65e-06 8.19e-09 -2.95e-11 7.55e-07 1.01e-09 0.261
    nd: 1.749504
    Vd: 35.332480
    glass_code: 750353
    density:
      - value: 3290
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.3e-06
      - temperature_range: 293 573
        value: 9.2e-06
    dPgF: -0.0025
    resistance:
        climatic: 3.0
        acid: 1.0
        phosphate: 1.0