# 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: |
    
DATA:
  - type: formula 2
    wavelength_range: 0.3 2.4
    coefficients: 0 1.16333541 0.0118079103 0.26332321 -0.00438112893 1.12551059 106.905682
  - type: tabulated k
    data: |
        0.300 2.6467E-06
        0.310 1.4304E-06
        0.320 7.6676E-07
        0.330 4.2678E-07
        0.340 2.3149E-07
        0.350 1.3701E-07
        0.360 8.1359E-08
        0.370 5.0485E-08
        0.380 3.6507E-08
        0.390 2.4928E-08
        0.400 1.9156E-08
        0.420 2.0114E-08
        0.440 2.1072E-08
        0.460 1.8349E-08
        0.480 1.5310E-08
        0.500 1.1955E-08
        0.550 8.7623E-09
        0.600 9.5589E-09
        0.650 1.0355E-08
        0.700 1.1152E-08
        0.800 6.3694E-09
        0.900 7.1656E-09
        1.000 1.5931E-08
        1.200 1.9118E-08
        1.400 1.4578E-07
        1.600 6.3822E-08
        1.800 1.7293E-07
        2.000 4.0295E-07
        2.200 1.5360E-06
        2.400 4.0245E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.07e-06 1.47e-08 -3.65e-11 3.9e-07 5.2e-10 0.186
    nd: 1.568729
    Vd: 63.104860
    glass_code: 569631
    glass_status: special
    density:
      - value: 3050
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.5e-06
      - temperature_range: 293 573
        value: 7.5e-06
    dPgF: -0.0023
    resistance:
        climatic: 3.0
        acid: 51.2
        phosphate: 3.0