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N-LAK34

Glass Code:  729545.402

“N”-glass as an environmentally friendly alternative to conventional lead and arsenic-containing glass types.

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Compare glass types with our Interactive Abbe Diagram.

optical glass klein 4zu3.jpg
Characteristics
nd 1.72916 νd 54.50
ne 1.73235 νe 54.27
nF-nC 0.013379 nF'-nC' 0.013493
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Download Data sheet N-LAK34
Article Details
SCHOTT
Article
Glass type
L
W
T
DIA
Step
nd
Step
vd
nd
vd
Weight
 
Technical Details
Refractive Indices
Characteristics λ [nm]
n2,325.4 2,325.4 1.68925
n1,970.1 1,970.1 1.69695
n1,529.6 1,529.6 1.70500
n1,060.0 1,060.0 1.71315
nt 1,014.0 1.71407
ns 852.1 1.71787
nr 706.5 1.72277
nC 656.3 1.72509
nC' 643.8 1.72574
Characteristics λ [nm]
n632.8 632.8 1.72634
nD 589.3 1.72904
nd 587.6 1.72916
ne 546.1 1.73235
nF 486.1 1.73847
nF' 480.0 1.73923
ng 435.8 1.74575
nh 404.7 1.75180
ni 365.0 1.76214
Characteristics λ [nm]
n334.1 334.1 1.77331
n312.6 312.6 1.78359
n296.7 296.7 1.79296
n280.4 280.4
n248.3 248.3
Internal Transmittance
Characteristics λ [nm]
τ25/2500 2,500 0.100
τ25/2325 2,325 0.370
τ25/1970 1,970 0.850
τ25/1530 1,530 0.960
τ25/1060 1,060 0.995
τ25/700 700 0.997
τ25/660 660 0.997
τ25/620 620 0.996
τ25/580 580 0.995
τ25/546 546 0.997
τ25/500 500 0.994
τ25/460 460 0.987
τ25/436 436 0.979
τ25/420 420 0.972
τ25/405 405 0.959
τ25/400 400 0.952
τ25/390 390 0.940
τ25/380 380 0.910
τ25/370 370 0.860
τ25/365 365 0.820
τ25/350 350 0.670
τ25/334 334 0.430
τ25/320 320 0.200
τ25/310 310 0.070
τ25/300 300 0.030
τ25/290 290 0.010
τ25/280 280
τ25/270 270
τ25/260 260
τ25/250 250
Characteristics λ [nm]
τ10/2500 2,500 0.398
τ10/2325 2,325 0.672
τ10/1970 1,970 0.937
τ10/1530 1,530 0.984
τ10/1060 1,060 0.998
τ10/700 700 0.999
τ10/660 660 0.999
τ10/620 620 0.998
τ10/580 580 0.998
τ10/546 546 0.999
τ10/500 500 0.998
τ10/460 460 0.995
τ10/436 436 0.992
τ10/420 420 0.989
τ10/405 405 0.983
τ10/400 400 0.981
τ10/390 390 0.976
τ10/380 380 0.963
τ10/370 370 0.941
τ10/365 365 0.924
τ10/350 350 0.852
τ10/334 334 0.713
τ10/320 320 0.525
τ10/310 310 0.377
τ10/300 300 0.281
τ10/290 290 0.168
τ10/280 280 0.073
τ10/270 270 0.014
τ10/260 260
τ10/250 250
Partial Dispersion
Characteristics
Ps,t 0.2841
PC,s 0.5398
Pd,C 0.3042
Pe,d 0.2384
Pg,F 0.5443
Pi,h 0.7726
P's,t 0.2817
P'C',s 0.5833
P'd,C' 0.2536
P'e,d 0.2364
P'g,F' 0.4832
P'i,h 0.7661
Characteristics
ΔPC,t 0.0204
ΔPC,s 0.0099
ΔPF,e -0.0024
ΔPg,F -0.0079
ΔPi,g -0.0423
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