# 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 1.41910189 0.00726647428 0.258416881 0.0263842499 1.07385537 102.555463
  - type: tabulated k
    data: |
        0.330 5.3577E-06
        0.340 2.2213E-06
        0.350 9.5391E-07
        0.360 4.6558E-07
        0.370 2.4871E-07
        0.380 1.4557E-07
        0.390 9.4531E-08
        0.400 6.4307E-08
        0.420 4.0350E-08
        0.440 3.1655E-08
        0.460 2.5714E-08
        0.480 1.9146E-08
        0.500 1.1955E-08
        0.550 4.3790E-09
        0.600 9.5589E-09
        0.650 1.0355E-08
        0.700 5.5732E-09
        0.800 6.3694E-09
        0.900 1.4338E-08
        1.000 1.5931E-08
        1.200 1.9118E-08
        1.400 7.8260E-08
        1.600 8.9440E-08
        1.800 2.1649E-07
        2.000 5.0119E-07
        2.200 1.5935E-06
        2.400 4.7453E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -1.76e-06 1.3e-08 -3.27e-11 3.37e-07 4.72e-10 0.262
    nd: 1.650996
    Vd: 56.163717
    glass_code: 651562
    density:
      - value: 3820
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.1e-06
      - temperature_range: 293 573
        value: 8.3e-06
    dPgF: -0.0024
    resistance:
        climatic: 3.0
        acid: 53.0
        phosphate: 4.2