# 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: |
    Low Softening Temperature 
DATA:
  - type: formula 2
    wavelength_range: 0.365015 2.32542
    coefficients: 0 0.881090017 0.0148496655 0.595038859 0.00163577371 1.22582098 125.11372
  - type: tabulated k
    data: |
        0.280 7.8132E-06
        0.290 4.5373E-06
        0.300 2.7202E-06
        0.310 1.4748E-06
        0.320 8.0140E-07
        0.330 4.2678E-07
        0.340 2.1386E-07
        0.350 1.1370E-07
        0.360 6.3729E-08
        0.370 3.8528E-08
        0.380 2.4289E-08
        0.390 1.8677E-08
        0.400 1.5955E-08
        0.420 1.3396E-08
        0.440 1.4034E-08
        0.460 1.4672E-08
        0.480 7.6471E-09
        0.500 7.9657E-09
        0.550 4.3790E-09
        0.600 4.7770E-09
        0.650 1.0355E-08
        0.700 5.5732E-09
        0.800 6.3694E-09
        0.900 7.1656E-09
        1.000 7.9617E-09
        1.200 9.5541E-09
        1.400 1.3450E-07
        1.600 8.9440E-08
        1.800 2.4560E-07
        2.000 5.1762E-07
        2.200 1.8251E-06
        2.400 3.5586E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 2.46e-06 9.17e-09 -3.83e-11 4.68e-07 4.9e-10 0.21
    nd: 1.585930
    Vd: 59.248294
    glass_code: 583594
    density:
      - value: 3050
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.2e-06
      - temperature_range: 293 573
        value: 8.8e-06
    dPgF: -0.0031
    resistance:
        climatic: 1.0
        acid: 5.2
        phosphate: 2.0