# 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 3
    wavelength_range: 0.3 2.4
    coefficients: 2.6360314 -0.0089450876 2 0.025228056 -2 0.0011120943 -4 -3.7887387e-05 -6 6.3760973e-06 -8
  - type: tabulated k
    data: |
        0.330 6.6327E-06
        0.340 2.3471E-06
        0.350 8.7654E-07
        0.360 3.9896E-07
        0.370 2.2001E-07
        0.380 1.4557E-07
        0.390 9.7732E-08
        0.400 6.1061E-08
        0.420 3.6968E-08
        0.440 2.8124E-08
        0.460 2.2030E-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
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 5.749e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.647689
    Vd: 33.802937
    glass_code: 648338
    glass_status: preferred
    density:
      - value: 3850
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.8e-06
      - temperature_range: 293 573
        value: 9.8e-06
    dPgF: 0.0015
    resistance:
        acid: 2.2
        phosphate: 2.0