# 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: 2.8593245 -0.010210027 2 0.031973162 -2 0.0020206869 -4 -0.00011399314 -6 1.4012932e-05 -8
  - type: tabulated k
    data: |
        0.340 1.0585E-05
        0.350 4.0934E-06
        0.360 1.8734E-06
        0.370 1.0084E-06
        0.380 6.0010E-07
        0.390 3.6167E-07
        0.400 2.1053E-07
        0.420 9.4918E-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 2.0732E-08
        0.700 1.6736E-08
        0.800 6.3694E-09
        0.900 7.1656E-09
        1.000 7.9617E-09
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.07e-05 0.0 0.0 0.0 0.0 0.0
    nd: 1.721506
    Vd: 29.243262
    glass_code: 722292
    glass_status: preferred
    density:
      - value: 4500
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.3e-06
      - temperature_range: 293 573
        value: 9.4e-06
    dPgF: 0.0046
    resistance:
        acid: 3.2
        phosphate: 2.2