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N-KF9  523515.250

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 1.52346 νd 51.54
ne 1.52588 νe 51.26
nF-nC 0.010156 nF'-nC' 0.010258
Glass type
Article L
W
T
DIA
nd
vd
STEP
nd
STEP
vd
Weight
Characteristics λ [nm]
n2,325.4 2,325.4 1.49608
n1,970.1 1,970.1 1.50095
n1,529.6 1,529.6 1.50616
n1,060.0 1,060.0 1.51170
nt 1,014.0 1.51234
ns 852.1 1.51507
nr 706.5 1.51867
nC 656.3 1.52040
nC' 643.8 1.52089
Characteristics λ [nm]
n632.8 632.8 1.52134
nD 589.3 1.52337
nd 587.6 1.52346
ne 546.1 1.52588
nF 486.1 1.53056
nF' 480.0 1.53114
ng 435.8 1.53620
nh 404.7 1.54096
ni 365.0 1.54925
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 0.300
τ25/2325 2,325 0.430
τ25/1970 1,970 0.740
τ25/1530 1,530 0.981
τ25/1060 1,060 0.995
τ25/700 700 0.997
τ25/660 660 0.995
τ25/620 620 0.994
τ25/580 580 0.996
τ25/546 546 0.996
τ25/500 500 0.994
τ25/460 460 0.990
τ25/436 436 0.988
τ25/420 420 0.985
τ25/405 405 0.975
τ25/400 400 0.965
τ25/390 390 0.940
τ25/380 380 0.880
τ25/370 370 0.770
τ25/365 365 0.680
τ25/350 350 0.210
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 0.618
τ10/2325 2,325 0.713
τ10/1970 1,970 0.887
τ10/1530 1,530 0.992
τ10/1060 1,060 0.998
τ10/700 700 0.999
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 0.996
τ10/436 436 0.995
τ10/420 420 0.994
τ10/405 405 0.990
τ10/400 400 0.986
τ10/390 390 0.976
τ10/380 380 0.950
τ10/370 370 0.901
τ10/365 365 0.857
τ10/350 350 0.536
τ10/334 334 0.026
τ10/320 320
τ10/310 310
τ10/300 300
τ10/290 290
τ10/280 280
τ10/270 270
τ10/260 260
τ10/250 250
Characteristics
Ps,t 0.2683
PC,s 0.5249
Pd,C 0.3012
Pe,d 0.2380
Pg,F 0.5558
Pi,h 0.8161
P's,t 0.2657
P'C',s 0.5669
P'd,C' 0.2509
P'e,d 0.2356
P'g,F' 0.4930
P'i,h 0.8080
Characteristics
ΔPC,t 0.0038
ΔPC,s 0.0018
ΔPF,e -0.0004
ΔPg,F -0.0014
ΔPi,g -0.0075