# 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: 0.34 2.4
    coefficients: 0 1.5713886 0.00910807936 0.147869313 0.0402401684 1.28092846 130.399367
  - type: tabulated k
    data: |
        0.340 8.7091E-06
        0.350 3.6468E-06
        0.360 1.6611E-06
        0.370 8.4704E-07
        0.380 4.5608E-07
        0.390 2.5204E-07
        0.400 1.5658E-07
        0.420 8.4619E-08
        0.440 6.3599E-08
        0.460 4.7899E-08
        0.480 3.4533E-08
        0.500 2.3945E-08
        0.550 1.3150E-08
        0.600 2.3933E-08
        0.650 2.5928E-08
        0.700 2.2326E-08
        0.800 1.9127E-08
        0.900 2.1518E-08
        1.000 2.3909E-08
        1.200 1.9118E-08
        1.400 6.7046E-08
        1.600 6.3822E-08
        1.800 1.7293E-07
        2.000 3.8663E-07
        2.200 1.1579E-06
        2.400 3.3299E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 2.98e-06 1.09e-08 -3.44e-11 5.52e-07 7.15e-10 0.244
    nd: 1.666718
    Vd: 48.325247
    glass_code: 667483
    density:
      - value: 3590
    thermal_expansion:
      - temperature_range: 243 343
        value: 6.9e-06
      - temperature_range: 293 573
        value: 8.2e-06
    dPgF: -0.0024
    resistance:
        climatic: 3.0
        acid: 52.2
        phosphate: 2.0