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LAFN7

Glass Code:  750350.438

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 1.74950 νd 34.95
ne 1.75458 νe 34.72
nF-nC 0.021445 nF'-nC' 0.021735
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Download Data sheet LAFN7
Technical Details
Refractive Indices
Characteristics λ [nm]
n2,325.4 2,325.4 1.70211
n1,970.1 1,970.1 1.70934
n1,529.6 1,529.6 1.71726
n1,060.0 1,060.0 1.72642
nt 1,014.0 1.72758
ns 852.1 1.73264
nr 706.5 1.73970
nC 656.3 1.74319
nC' 643.8 1.74418
Characteristics λ [nm]
n632.8 632.8 1.74511
nD 589.3 1.74931
nd 587.6 1.74950
ne 546.1 1.75458
nF 486.1 1.76464
nF' 480.0 1.76592
ng 435.8 1.77713
nh 404.7 1.78798
ni 365.0 1.80762
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 0.090
τ25/2325 2,325 0.410
τ25/1970 1,970 0.850
τ25/1530 1,530 0.960
τ25/1060 1,060 0.996
τ25/700 700 0.996
τ25/660 660 0.995
τ25/620 620 0.995
τ25/580 580 0.995
τ25/546 546 0.994
τ25/500 500 0.994
τ25/460 460 0.982
τ25/436 436 0.965
τ25/420 420 0.940
τ25/405 405 0.880
τ25/400 400 0.850
τ25/390 390 0.780
τ25/380 380 0.650
τ25/370 370 0.400
τ25/365 365 0.220
τ25/350 350 0.010
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 0.382
τ10/2325 2,325 0.700
τ10/1970 1,970 0.937
τ10/1530 1,530 0.984
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 0.998
τ10/460 460 0.993
τ10/436 436 0.986
τ10/420 420 0.976
τ10/405 405 0.950
τ10/400 400 0.937
τ10/390 390 0.905
τ10/380 380 0.842
τ10/370 370 0.693
τ10/365 365 0.546
τ10/350 350 0.125
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 0.2360
PC,s 0.4921
Pd,C 0.2941
Pe,d 0.2369
Pg,F 0.5825
Pi,h 0.9160
P's,t 0.2329
P'C',s 0.5311
P'd,C' 0.2446
P'e,d 0.2338
P'g,F' 0.5158
P'i,h 0.9037
Characteristics
ΔPC,t 0.0174
ΔPC,s 0.0078
ΔPF,e -0.0011
ΔPg,F -0.0025
ΔPi,g -0.0093
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