# 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: 2.3982661 -0.010222781 2 0.012110445 -2 0.00037767581 -4 -2.7339021e-05 -6 1.5701891e-06 -8
  - type: tabulated k
    data: |
        0.300 7.1518E-06
        0.310 3.8500E-06
        0.320 2.0906E-06
        0.330 1.1313E-06
        0.340 6.0374E-07
        0.350 3.2457E-07
        0.360 1.7117E-07
        0.370 9.8803E-08
        0.380 7.0363E-08
        0.390 4.6905E-08
        0.400 3.5208E-08
        0.420 3.3591E-08
        0.440 3.5190E-08
        0.460 2.9402E-08
        0.480 2.2987E-08
        0.500 1.9944E-08
        0.550 1.3150E-08
        0.600 1.9137E-08
        0.650 2.5928E-08
        0.700 2.2326E-08
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.64e-06 1.93e-08 4.39e-12 5.12e-07 8.07e-10 0.162
    nd: 1.559625
    Vd: 61.172671
    glass_code: 560612
    glass_status: special
    density:
      - value: 2740
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.5e-06
      - temperature_range: 293 573
        value: 9e-06
    dPgF: -0.0033
    resistance:
        climatic: 2.0
        acid: 4.2
        phosphate: 2.2