# 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 1.54052 0.00826765101 0.217748704 0.0328533726 1.30456122 124.527479
  - type: tabulated k
    data: |
        0.330 1.2093E-05
        0.340 4.6396E-06
        0.350 1.8754E-06
        0.360 8.6260E-07
        0.370 4.4408E-07
        0.380 2.2596E-07
        0.390 1.3316E-07
        0.400 8.0589E-08
        0.420 4.7122E-08
        0.440 3.5190E-08
        0.460 2.5714E-08
        0.480 1.9146E-08
        0.500 1.1955E-08
        0.550 8.7623E-09
        0.600 1.4345E-08
        0.650 1.5541E-08
        0.700 1.1152E-08
        0.800 6.3694E-09
        0.900 1.4338E-08
        1.000 1.5931E-08
        1.200 2.8691E-08
        1.400 7.8260E-08
        1.600 8.9440E-08
        1.800 2.0195E-07
        2.000 4.3563E-07
        2.200 1.3082E-06
        2.400 4.0245E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 2.53e-06 1.39e-08 -3.57e-11 4.25e-07 4.38e-10 0.265
    nd: 1.677898
    Vd: 50.722184
    glass_code: 678507
    glass_status: special
    density:
      - value: 3850
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.6e-06
      - temperature_range: 293 573
        value: 7.6e-06
    dPgF: -0.0037
    resistance:
        climatic: 2.0
        acid: 51.0
        phosphate: 2.0