# 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: 2.7934634 -0.011916323 2 0.027252732 -2 0.0026477261 -4 -0.00022721609 -6 2.0411942e-05 -8
  - type: tabulated k
    data: |
        0.370 6.4990E-06
        0.380 2.4826E-06
        0.390 9.7671E-07
        0.400 4.0691E-07
        0.420 1.0525E-07
        0.440 5.2919E-08
        0.460 3.3094E-08
        0.480 2.2987E-08
        0.500 1.9944E-08
        0.550 1.3150E-08
        0.600 1.9137E-08
        0.650 2.0732E-08
        0.700 1.1152E-08
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 9.239e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.698947
    Vd: 30.121211
    glass_code: 699301
    glass_status: preferred
    density:
      - value: 4100
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.4e-06
      - temperature_range: 293 573
        value: 8.2e-06
    dPgF: 0.0063
    resistance:
        acid: 1.0
        phosphate: 1.0