# 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/sumita_2017-02-02.agf">SUMITA Zemax catalog 2017-02-02</a> (obtained from <a href="http://www.sumita-opt.co.jp/en/download/">http://www.sumita-opt.co.jp</a>)<br>See also <a href="https://refractiveindex.info/download/data/2016/sumita_2016-02-01.pdf">SUMITA optical glass data book</a>
DATA:
  - type: formula 3
    wavelength_range: 0.36 1.55
    coefficients: 2.5313894 -0.010956275 2 0.013803544 -2 0.00029803889 -4 -6.2451964e-06 -6 2.5686024e-07 -8
  - type: tabulated k
    data: |
        0.280 6.1600E-06
        0.290 4.7441E-06
        0.300 2.8505E-06
        0.310 1.6562E-06
        0.320 9.3386E-07
        0.330 5.8599E-07
        0.340 3.2443E-07
        0.350 1.9315E-07
        0.360 1.0801E-07
        0.370 6.8511E-08
        0.380 4.2634E-08
        0.390 3.1191E-08
        0.400 2.5567E-08
        0.420 1.6753E-08
        0.440 1.7551E-08
        0.460 1.8349E-08
        0.480 1.9146E-08
        0.500 1.1955E-08
        0.550 1.3150E-08
        0.600 1.4345E-08
        0.650 1.0355E-08
        0.700 1.1152E-08
        0.800 1.2745E-08
        1.060 1.6887E-08
        1.500 5.9833E-08
        2.000 3.7033E-07
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 5.63e-07 2.16e-08 -8.94e-11 4.28e-07 2.18e-10 0.16
    nd: 1.60311
    Vd: 60.7
    glass_code: 603607
    density:
      - value: 3440
    thermal_expansion:
      - temperature_range: 243 343
        value: 5.7e-06
      - temperature_range: 293 573
        value: 7.3e-06
    dPgF: -0.0011
    resistance:
        climatic: 3.0
        acid: 4.0