# 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: 3.3034137 -0.013868754 2 0.037625274 -2 0.0021067685 -4 -0.00011821055 -6 1.4781395e-05 -8
  - type: tabulated k
    data: |
        0.360 1.1207E-05
        0.370 5.3958E-06
        0.380 2.8474E-06
        0.390 1.6906E-06
        0.400 1.0457E-06
        0.420 5.0409E-07
        0.440 2.6919E-07
        0.460 1.7238E-07
        0.480 1.0455E-07
        0.500 6.8222E-08
        0.550 2.6340E-08
        0.600 2.8734E-08
        0.650 3.1129E-08
        0.700 2.7922E-08
        0.800 1.9127E-08
        0.900 2.1518E-08
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 5.35e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.850259
    Vd: 32.285940
    glass_code: 850323
    glass_status: preferred
    density:
      - value: 4810
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.4e-06
      - temperature_range: 293 573
        value: 8.3e-06
    dPgF: 0.0027
    resistance:
        acid: 51.2
        phosphate: 1.0