# 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: 0.33 2.4
    coefficients: 0 1.85390925 0.00955320687 0.297925555 0.039381685 1.39382086 102.706848
  - type: tabulated k
    data: |
        0.330 1.0273E-05
        0.340 3.9764E-06
        0.350 1.8213E-06
        0.360 9.4109E-07
        0.370 5.4862E-07
        0.380 3.5239E-07
        0.390 2.2189E-07
        0.400 1.5992E-07
        0.420 9.8359E-08
        0.440 7.4313E-08
        0.460 5.5324E-08
        0.480 3.8389E-08
        0.500 2.7950E-08
        0.550 1.3150E-08
        0.600 1.4345E-08
        0.650 1.0355E-08
        0.700 1.1152E-08
        0.800 1.2745E-08
        0.900 1.4338E-08
        1.000 1.5931E-08
        1.200 2.8691E-08
        1.400 6.7046E-08
        1.600 8.9440E-08
        1.800 2.0195E-07
        2.000 5.6702E-07
        2.200 1.6511E-06
        2.400 6.5411E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 5.34e-06 1.23e-08 6.91e-12 7.5e-07 8.12e-10 0.219
    nd: 1.799516
    Vd: 42.225007
    glass_code: 800422
    density:
      - value: 4410
    thermal_expansion:
      - temperature_range: 243 343
        value: 6e-06
      - temperature_range: 293 573
        value: 7.3e-06
    dPgF: -0.006
    resistance:
        climatic: 1.0
        acid: 51.2
        phosphate: 2.0