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N-LASF9HT

Glass Code:  850322.441

“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.

optical glass klein 4zu3.jpg
Characteristics
nd 1.85025 νd 32.17
ne 1.85650 νe 31.93
nF-nC 0.026430 nF'-nC' 0.026827
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Download Data sheet N-LASF9HT
Technical Details
Refractive Indices
Characteristics λ [nm]
n2,325.4 2,325.4 1.80058
n1,970.1 1,970.1 1.80659
n1,529.6 1,529.6 1.81364
n1,060.0 1,060.0 1.82293
nt 1,014.0 1.82420
ns 852.1 1.82997
nr 706.5 1.83834
nC 656.3 1.84255
nC' 643.8 1.84376
Characteristics λ [nm]
n632.8 632.8 1.84489
nD 589.3 1.85002
nd 587.6 1.85025
ne 546.1 1.85650
nF 486.1 1.86898
nF' 480.0 1.87058
ng 435.8 1.88467
nh 404.7 1.89845
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
Internal Transmittance
Characteristics λ [nm]
τ25/2500 2,500 0.598
τ25/2325 2,325 0.712
τ25/1970 1,970 0.919
τ25/1530 1,530 0.986
τ25/1060 1,060 0.994
τ25/700 700 0.986
τ25/660 660 0.981
τ25/620 620 0.979
τ25/580 580 0.978
τ25/546 546 0.972
τ25/500 500 0.945
τ25/460 460 0.898
τ25/436 436 0.855
τ25/420 420 0.801
τ25/405 405 0.703
τ25/400 400 0.653
τ25/390 390 0.513
τ25/380 380 0.314
τ25/370 370 0.095
τ25/365 365 0.030
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 0.814
τ10/2325 2,325 0.873
τ10/1970 1,970 0.967
τ10/1530 1,530 0.994
τ10/1060 1,060 0.998
τ10/700 700 0.994
τ10/660 660 0.992
τ10/620 620 0.992
τ10/580 580 0.991
τ10/546 546 0.989
τ10/500 500 0.978
τ10/460 460 0.958
τ10/436 436 0.939
τ10/420 420 0.915
τ10/405 405 0.869
τ10/400 400 0.843
τ10/390 390 0.766
τ10/380 380 0.629
τ10/370 370 0.390
τ10/365 365 0.246
τ10/350 350 0.005
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 0.2181
PC,s 0.4762
Pd,C 0.2912
Pe,d 0.2366
Pg,F 0.5934
Pi,h
P's,t 0.2149
P'C',s 0.5140
P'd,C' 0.2420
P'e,d 0.2330
P'g,F' 0.5250
P'i,h
Characteristics
ΔPC,t -0.0032
ΔPC,s -0.0016
ΔPF,e 0.0008
ΔPg,F 0.0037
ΔPi,g
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