# 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: 2.5601339 -0.009371199 2 0.015290933 -2 0.00040740566 -4 -2.1956285e-05 -6 1.5738984e-06 -8
  - type: tabulated k
    data: |
        0.300 1.0994E-05
        0.310 5.0330E-06
        0.320 2.6734E-06
        0.330 1.4305E-06
        0.340 7.7836E-07
        0.350 3.8787E-07
        0.360 2.1407E-07
        0.370 1.2326E-07
        0.380 7.6560E-08
        0.390 5.3213E-08
        0.400 3.5208E-08
        0.420 2.3478E-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 1.4345E-08
        0.650 1.5541E-08
        0.700 1.6736E-08
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 5.096e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.613749
    Vd: 56.365919
    glass_code: 614564
    glass_status: preferred
    density:
      - value: 3600
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.6e-06
      - temperature_range: 293 573
        value: 7.7e-06
    dPgF: -0.0021
    resistance:
        acid: 51.2
        phosphate: 2.0