# 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: 0.32 2.4
    coefficients: 0 1.83021453 0.0090482329 0.29156359 0.0330756689 1.28544024 89.3675501
  - type: tabulated k
    data: |
        0.320 5.1954E-06
        0.330 2.4062E-06
        0.340 1.2501E-06
        0.350 7.2796E-07
        0.360 4.6558E-07
        0.370 2.7122E-07
        0.380 1.7747E-07
        0.390 1.2346E-07
        0.400 9.0398E-08
        0.420 6.4114E-08
        0.440 4.9366E-08
        0.460 3.6790E-08
        0.480 2.6832E-08
        0.500 1.5947E-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 1.4338E-08
        1.000 2.3909E-08
        1.200 3.8274E-08
        1.400 5.5844E-08
        1.600 8.9440E-08
        1.800 1.8743E-07
        2.000 5.5054E-07
        2.200 1.5552E-06
        2.400 7.3656E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 3.03e-06 1.2e-08 -3.49e-11 4.09e-07 4.61e-10 0.277
    nd: 1.788001
    Vd: 47.368522
    glass_code: 788474
    density:
      - value: 4300
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.1e-06
      - temperature_range: 293 573
        value: 7.4e-06
    dPgF: -0.0089
    resistance:
        climatic: 2.0
        acid: 4.0
        phosphate: 1.0