SF4

Glass Code:  755276.479

A classic glass type with lead oxide as an essential component for outstanding optical properties.

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optical glass klein 4zu3.jpg
Characteristics
nd 1.75520 νd 27.58
ne 1.76167 νe 27.37
nF-nC 0.027383 nF'-nC' 0.027829
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    Article Details
     
    Technical Details
    Refractive Indices
    Characteristics λ [nm]
    n2,325.4 2,325.4 1.70789
    n1,970.1 1,970.1 1.71294
    n1,529.6 1,529.6 1.71904
    n1,060.0 1,060.0 1.72765
    nt 1,014.0 1.72888
    ns 852.1 1.73456
    nr 706.5 1.74300
    nC 656.3 1.74730
    nC' 643.8 1.74853
    Characteristics λ [nm]
    n632.8 632.8 1.74969
    nD 589.3 1.75496
    nd 587.6 1.75520
    ne 546.1 1.76167
    nF 486.1 1.77468
    nF' 480.0 1.77636
    ng 435.8 1.79121
    nh 404.7 1.80589
    ni 365.0 1.83330
    Characteristics λ [nm]
    n334.1 334.1
    n312.6 312.6
    n296.7 296.7
    n280.4 280.4
    n248.3 248.3
    Internal Transmittance
    Characteristics λ [nm]
    τ25/2500 2,500 0.660
    τ25/2325 2,325 0.740
    τ25/1970 1,970 0.910
    τ25/1530 1,530 0.989
    τ25/1060 1,060 0.996
    τ25/700 700 0.996
    τ25/660 660 0.995
    τ25/620 620 0.995
    τ25/580 580 0.996
    τ25/546 546 0.996
    τ25/500 500 0.991
    τ25/460 460 0.980
    τ25/436 436 0.967
    τ25/420 420 0.950
    τ25/405 405 0.910
    τ25/400 400 0.890
    τ25/390 390 0.820
    τ25/380 380 0.690
    τ25/370 370 0.450
    τ25/365 365 0.280
    τ25/350 350
    τ25/334 334
    τ25/320 320
    τ25/310 310
    τ25/300 300
    τ25/290 290
    τ25/280 280
    τ25/270 270
    τ25/260 260
    τ25/250 250
    Characteristics λ [nm]
    τ10/2500 2,500 0.847
    τ10/2325 2,325 0.887
    τ10/1970 1,970 0.963
    τ10/1530 1,530 0.996
    τ10/1060 1,060 0.998
    τ10/700 700 0.998
    τ10/660 660 0.998
    τ10/620 620 0.998
    τ10/580 580 0.998
    τ10/546 546 0.998
    τ10/500 500 0.996
    τ10/460 460 0.992
    τ10/436 436 0.987
    τ10/420 420 0.980
    τ10/405 405 0.963
    τ10/400 400 0.954
    τ10/390 390 0.924
    τ10/380 380 0.862
    τ10/370 370 0.727
    τ10/365 365 0.601
    τ10/350 350 0.090
    τ10/334 334
    τ10/320 320
    τ10/310 310
    τ10/300 300
    τ10/290 290
    τ10/280 280
    τ10/270 270
    τ10/260 260
    τ10/250 250
    Partial Dispersion
    Characteristics
    Ps,t 0.2076
    PC,s 0.4650
    Pd,C 0.2886
    Pe,d 0.2361
    Pg,F 0.6036
    Pi,h 1.0012
    P's,t 0.2042
    P'C',s 0.5018
    P'd,C' 0.2398
    P'e,d 0.2323
    P'g,F' 0.5337
    P'i,h 0.9851
    Characteristics
    ΔPC,t -0.0032
    ΔPC,s -0.0022
    ΔPF,e 0.0014
    ΔPg,F 0.0062
    ΔPi,g 0.0443