# 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 1.98280031 0.0118987456 0.31675845 0.0527156001 2.44472646 213.220697
  - type: tabulated k
    data: |
        0.360 1.3193E-05
        0.370 6.4990E-06
        0.380 3.7433E-06
        0.390 2.2139E-06
        0.400 1.3712E-06
        0.420 6.2276E-07
        0.440 3.1870E-07
        0.460 2.0708E-07
        0.480 1.4401E-07
        0.500 9.6658E-08
        0.550 3.5155E-08
        0.600 2.3933E-08
        0.650 2.5928E-08
        0.700 1.6736E-08
        0.800 1.2745E-08
        0.900 7.1656E-09
        1.000 7.9617E-09
        1.200 9.5541E-09
        1.400 1.1146E-08
        1.600 2.5490E-08
        1.800 1.0062E-07
        2.000 1.7604E-07
        2.200 3.1800E-07
        2.400 8.5939E-07
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: -3.71e-07 9.01e-09 -2.99e-11 9.14e-07 1.11e-09 0.257
    nd: 1.850259
    Vd: 32.270120
    glass_code: 850323
    density:
      - value: 4360
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.7e-06
      - temperature_range: 293 573
        value: 9.1e-06
    dPgF: 0.0036
    resistance:
        climatic: 2.0
        acid: 2.0
        phosphate: 1.0