Please note: Due to maintenance the shop will be unavailable on Tuesday, November 30, from 06:00 AM until 08:00 AM (CEST)

N-LASF31A  883408.551

optical glass klein 4zu3.jpg

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

Find more information in the tabs below or on our website.

Compare glass types with our Interactive Abbe Diagram.

Characteristics
nd 1.88300 νd 40.76
ne 1.88815 νe 40.52
nF-nC 0.021663 nF'-nC' 0.021921
Glass type
Article L
W
T
DIA
nd
vd
STEP
nd
STEP
vd
Weight
Characteristics λ [nm]
n2,325.4 2,325.4 1.83590
n1,970.1 1,970.1 1.84267
n1,529.6 1,529.6 1.85026
n1,060.0 1,060.0 1.85937
nt 1,014.0 1.86054
ns 852.1 1.86572
nr 706.5 1.87298
nC 656.3 1.87656
nC' 643.8 1.87757
Characteristics λ [nm]
n632.8 632.8 1.87853
nD 589.3 1.88281
nd 587.6 1.88300
ne 546.1 1.88815
nF 486.1 1.89822
nF' 480.0 1.89950
ng 435.8 1.91050
nh 404.7 1.92093
ni 365.0 1.93920
Characteristics λ [nm]
n334.1 334.1
n312.6 312.6
n296.7 296.7
n280.4 280.4
n248.3 248.3
Characteristics λ [nm]
τ25/2500 2,500 0.323
τ25/2325 2,325 0.616
τ25/1970 1,970 0.910
τ25/1530 1,530 0.983
τ25/1060 1,060 0.995
τ25/700 700 0.992
τ25/660 660 0.991
τ25/620 620 0.990
τ25/580 580 0.990
τ25/546 546 0.990
τ25/500 500 0.978
τ25/460 460 0.950
τ25/436 436 0.927
τ25/420 420 0.903
τ25/405 405 0.862
τ25/400 400 0.841
τ25/390 390 0.780
τ25/380 380 0.685
τ25/370 370 0.540
τ25/365 365 0.453
τ25/350 350 0.166
τ25/334 334 0.006
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 0.636
τ10/2325 2,325 0.824
τ10/1970 1,970 0.963
τ10/1530 1,530 0.993
τ10/1060 1,060 0.998
τ10/700 700 0.997
τ10/660 660 0.996
τ10/620 620 0.996
τ10/580 580 0.996
τ10/546 546 0.996
τ10/500 500 0.991
τ10/460 460 0.980
τ10/436 436 0.970
τ10/420 420 0.960
τ10/405 405 0.942
τ10/400 400 0.933
τ10/390 390 0.905
τ10/380 380 0.860
τ10/370 370 0.782
τ10/365 365 0.729
τ10/350 350 0.488
τ10/334 334 0.129
τ10/320 320 0.060
τ10/310 310 0.001
τ10/300 300
τ10/290 290
τ10/280 280
τ10/270 270
τ10/260 260
τ10/250 250
Characteristics
Ps,t 0.2391
PC,s 0.5004
Pd,C 0.2972
Pe,d 0.2377
Pg,F 0.5667
Pi,h 0.8436
P's,t 0.2363
P'C',s 0.5407
P'd,C' 0.2475
P'e,d 0.2349
P'g,F' 0.5021
P'i,h 0.8337
Characteristics
ΔPC,t 0.0012
ΔPC,s 0.0025
ΔPF,e -0.0019
ΔPg,F -0.0085
ΔPi,g -0.0575