N-SF6HTULTRA  805254.337

optical glass klein 4zu3.jpg

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

HT & HTultra glasses feature enhanced transmission values in the visible spectral range, especially in the blue-violet range.

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

Compare glass types with our Interactive Abbe Diagram.

Characteristics
nd 1.80518 νd 25.36
ne 1.81266 νe 25.16
nF-nC 0.031750 nF'-nC' 0.032304
Glass type
Article L
W
T
DIA
nd
vd
STEP
nd
STEP
vd
Weight
Characteristics λ [nm]
n2,325.4 2,325.4 1.74895
n1,970.1 1,970.1 1.75541
n1,529.6 1,529.6 1.76307
n1,060.0 1,060.0 1.77341
nt 1,014.0 1.77486
ns 852.1 1.78144
nr 706.5 1.79114
nC 656.3 1.79608
nC' 643.8 1.79749
Characteristics λ [nm]
n632.8 632.8 1.79883
nD 589.3 1.80491
nd 587.6 1.80518
ne 546.1 1.81266
nF 486.1 1.82783
nF' 480.0 1.82980
ng 435.8 1.84738
nh 404.7 1.86506
ni 365.0
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 0.565
τ25/2325 2,325 0.620
τ25/1970 1,970 0.876
τ25/1530 1,530 0.981
τ25/1060 1,060 0.999
τ25/700 700 0.984
τ25/660 660 0.978
τ25/620 620 0.980
τ25/580 580 0.984
τ25/546 546 0.981
τ25/500 500 0.960
τ25/460 460 0.932
τ25/436 436 0.906
τ25/420 420 0.869
τ25/405 405 0.790
τ25/400 400 0.742
τ25/390 390 0.581
τ25/380 380 0.283
τ25/370 370 0.022
τ25/365 365
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 0.796
τ10/2325 2,325 0.826
τ10/1970 1,970 0.948
τ10/1530 1,530 0.992
τ10/1060 1,060 0.999
τ10/700 700 0.994
τ10/660 660 0.991
τ10/620 620 0.992
τ10/580 580 0.994
τ10/546 546 0.992
τ10/500 500 0.984
τ10/460 460 0.972
τ10/436 436 0.961
τ10/420 420 0.945
τ10/405 405 0.910
τ10/400 400 0.887
τ10/390 390 0.805
τ10/380 380 0.604
τ10/370 370 0.217
τ10/365 365 0.004
τ10/350 350
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
Characteristics
Ps,t 0.2074
PC,s 0.4610
Pd,C 0.2867
Pe,d 0.2356
Pg,F 0.6158
Pi,h
P's,t 0.2039
P'C',s 0.4969
P'd,C' 0.2380
P'e,d 0.2315
P'g,F' 0.5443
P'i,h
Characteristics
ΔPC,t 0.0031
ΔPC,s -0.0010
ΔPF,e 0.0027
ΔPg,F 0.0146
ΔPi,g