# 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: 2.8222929 -0.010636602 2 0.024365241 -2 0.00070591145 -4 -3.9506977e-06 -6 2.9865625e-06 -8
  - type: tabulated k
    data: |
        0.340 5.1329E-06
        0.350 1.9306E-06
        0.360 8.2415E-07
        0.370 4.1004E-07
        0.380 2.0971E-07
        0.390 1.2993E-07
        0.400 8.7125E-08
        0.420 5.3908E-08
        0.440 4.5817E-08
        0.460 3.6790E-08
        0.480 2.6832E-08
        0.500 1.9944E-08
        0.550 8.7623E-09
        0.600 1.4345E-08
        0.650 2.0732E-08
        0.700 1.1152E-08
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 4.398e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.701539
    Vd: 41.210010
    glass_code: 702412
    glass_status: preferred
    density:
      - value: 4150
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.2e-06
      - temperature_range: 293 573
        value: 8.4e-06
    dPgF: 0.0003
    resistance:
        acid: 51.2
        phosphate: 2.0