# 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: 0.29 2.4
    coefficients: 0 0.980071267 0.00389123698 0.832904776 0.0189164592 1.28111995 98.9052676
  - type: tabulated k
    data: |
        0.290 1.0628E-05
        0.300 8.3713E-06
        0.310 6.2307E-06
        0.320 4.2290E-06
        0.330 2.8330E-06
        0.340 1.7693E-06
        0.350 1.0742E-06
        0.360 6.3926E-07
        0.370 3.7639E-07
        0.380 2.1295E-07
        0.390 1.3316E-07
        0.400 9.0398E-08
        0.420 4.7122E-08
        0.440 3.5190E-08
        0.460 2.5714E-08
        0.480 1.9146E-08
        0.500 1.5947E-08
        0.550 1.3150E-08
        0.600 2.3933E-08
        0.650 2.5928E-08
        0.700 2.2326E-08
        0.800 1.9127E-08
        0.900 2.8705E-08
        1.000 3.9889E-08
        1.200 4.7866E-08
        1.400 1.1197E-07
        1.600 1.2796E-07
        1.800 2.7477E-07
        2.000 6.8289E-07
        2.200 2.2380E-06
        2.400 7.9358E-06
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 5.88e-06 1.5e-08 -4e-11 3.13e-07 5.37e-10 0.292
    nd: 1.693501
    Vd: 53.205327
    glass_code: 694532
    density:
      - value: 3600
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.7e-06
      - temperature_range: 293 573
        value: 7.2e-06
    dPgF: -0.0081
    resistance:
        climatic: 1.0
        acid: 52.0
        phosphate: 3.0