# 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 1.37436455 0.00877165624 0.174025602 0.0405249716 0.905485504 72.7685343
  - type: tabulated k
    data: |
        0.310 8.6503E-06
        0.320 4.2290E-06
        0.330 2.4062E-06
        0.340 1.4738E-06
        0.350 9.1495E-07
        0.360 5.6852E-07
        0.370 3.4312E-07
        0.380 1.9355E-07
        0.390 1.2346E-07
        0.400 7.7326E-08
        0.420 3.6968E-08
        0.440 2.1072E-08
        0.460 1.4672E-08
        0.480 1.1476E-08
        0.500 7.9657E-09
        0.550 4.3790E-09
        0.600 9.5589E-09
        0.650 1.0355E-08
        0.700 5.5732E-09
        0.800 1.2745E-08
        0.900 1.4338E-08
        1.000 2.3909E-08
        1.200 1.9118E-08
        1.400 3.3934E-07
        1.600 2.0537E-07
        1.800 4.2154E-07
        2.000 1.2580E-06
        2.200 5.2715E-06
        2.400 1.4831E-05
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 7.297e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.613397
    Vd: 44.266767
    glass_code: 613443
    glass_status: preferred
    density:
      - value: 3240
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.2e-06
      - temperature_range: 293 573
        value: 6.2e-06
    dPgF: -0.0084
    resistance:
        acid: 53.2
        phosphate: 4.2