# 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: 2.4787185 -0.0085856348 2 0.015210012 -2 0.0006044033 -4 -3.8936391e-05 -6 2.7124338e-06 -8
  - type: tabulated k
    data: |
        0.320 5.3992E-06
        0.330 2.1559E-06
        0.340 1.0040E-06
        0.350 5.5273E-07
        0.360 2.9865E-07
        0.370 1.8218E-07
        0.380 1.2030E-07
        0.390 7.5393E-08
        0.400 5.1341E-08
        0.420 3.3591E-08
        0.440 2.8124E-08
        0.460 2.2030E-08
        0.480 1.9146E-08
        0.500 1.1955E-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 1.4338E-08
CONDITIONS:
    temperature: 298
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 3.871e-06 0.0 0.0 0.0 0.0 0.0
    nd: 1.588750
    Vd: 51.179278
    glass_code: 589512
    glass_status: preferred
    density:
      - value: 3180
    thermal_expansion:
      - temperature_range: 243 343
        value: 7.5e-06
      - temperature_range: 293 573
        value: 8.8e-06
    dPgF: -0.0012
    resistance:
        acid: 4.2
        phosphate: 2.2