# 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: 2.9569821 -0.013856476 2 0.037265687 -2 0.0029140249 -4 -0.00020079792 -6 2.945722e-05 -8
  - type: tabulated k
    data: |
        0.370 1.0325E-05
        0.380 3.1746E-06
        0.390 1.2896E-06
        0.400 6.3169E-07
        0.420 2.4255E-07
        0.440 1.3929E-07
        0.460 1.0019E-07
        0.480 7.7169E-08
        0.500 5.6098E-08
        0.550 2.6340E-08
        0.600 2.3933E-08
        0.650 3.6335E-08
        0.700 3.9130E-08
        0.800 1.2745E-08
        0.900 7.1656E-09
CONDITIONS:
    temperature: 298
PROPERTIES:
    nd: 1.755502
    Vd: 25.066156
    glass_code: 756251
    glass_status: preferred
    density:
      - value: 3060
    thermal_expansion:
      - temperature_range: 293 573
        value: 9.4e-06
    dPgF: 0.0197