# 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 1.82586991 0.00935297152 0.283023349 0.0373803057 1.35964319 100.655798
  - type: tabulated k
    data: |
        0.330 1.2093E-05
        0.340 4.7943E-06
        0.350 1.8754E-06
        0.360 9.0158E-07
        0.370 5.1336E-07
        0.380 2.8519E-07
        0.390 1.8544E-07
        0.400 1.2663E-07
        0.420 7.7770E-08
        0.440 5.6476E-08
        0.460 4.0489E-08
        0.480 2.6832E-08
        0.500 1.9944E-08
        0.550 8.7623E-09
        0.600 1.4345E-08
        0.650 1.5541E-08
        0.700 1.1152E-08
        0.800 1.2745E-08
        0.900 2.1518E-08
        1.000 3.1895E-08
        1.200 3.8274E-08
        1.400 1.0072E-07
        1.600 1.4083E-07
        1.800 2.7477E-07
        2.000 6.9952E-07
        2.200 2.0402E-06
        2.400 7.3656E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 5.3e-06 1.13e-08 2.62e-12 8.44e-07 1.11e-09 0.169
    nd: 1.785896
    Vd: 44.202637
    glass_code: 786442
    density:
      - value: 4400
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.9e-06
      - temperature_range: 293 573
        value: 7.2e-06
    dPgF: -0.0069
    resistance:
        climatic: 1.0
        acid: 4.0
        phosphate: 2.0