# 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/hoya_2017-04-01.agf">HOYA Zemax catalog 2017-04-01</a> (obtained from <a href="http://www.hoya-opticalworld.com/english/datadownload/">http://www.hoya-opticalworld.com</a>)
COMMENTS: |
    General glass Type
DATA:
  - type: formula 3
    wavelength_range: 0.36501 1.01398
    coefficients: 2.9673173 -0.013989565 2 0.03345668 -2 0.0030717804 -4 -0.00026682435 -6 2.8950241e-05 -8
  - type: tabulated k
    data: |
        0.370 4.8743E-06
        0.380 1.8023E-06
        0.390 7.7907E-07
        0.400 4.2141E-07
        0.420 1.9261E-07
        0.440 1.2112E-07
        0.460 9.6434E-08
        0.480 6.9381E-08
        0.500 5.2065E-08
        0.550 1.7542E-08
        0.600 2.3933E-08
        0.650 2.0732E-08
        0.700 3.9130E-08
        0.750 1.7932E-08
        0.780 1.2427E-08
        0.800 1.2745E-08
        0.830 1.3223E-08
        0.850 1.3542E-08
        0.900 1.4338E-08
        0.950 1.5135E-08
        1.000 1.5931E-08
        1.050 1.6728E-08
        1.060 1.6887E-08
        1.100 8.7579E-09
        1.200 9.5541E-09
        1.300 1.0350E-08
        1.400 4.4653E-08
        1.500 4.7842E-08
        1.550 4.9437E-08
CONDITIONS:
    temperature: 293
PROPERTIES:
    thermal_dispersion:
      - type: formula A
        coefficients: 1.675e-07 0.0 0.0 0.0 0.0 0.0
    nd: 1.75520
    Vd: 27.53
    glass_code: 755275
    density:
      - value: 3230
    thermal_expansion:
      - temperature_range: 243 343
        value: 8.7e-06
      - temperature_range: 293 573
        value: 1e-05
    dPgF: 0.0103
    resistance:
        climatic: 1.0
        stain: 1.0
        acid: 1.0