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N-LAF21

Glass Code:  788475.428

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

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optical glass klein 4zu3.jpg
Characteristics
nd 1.78800 νd 47.49
ne 1.79195 νe 47.25
nF-nC 0.016593 nF'-nC' 0.016761
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Download Data sheet N-LAF21
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 1.74419
n1,970.1 1,970.1 1.75191
n1,529.6 1,529.6 1.76014
n1,060.0 1,060.0 1.76892
nt 1,014.0 1.76995
ns 852.1 1.77434
nr 706.5 1.78019
nC 656.3 1.78301
nC' 643.8 1.78380
Characteristics λ [nm]
n632.8 632.8 1.78454
nD 589.3 1.78785
nd 587.6 1.78800
ne 546.1 1.79195
nF 486.1 1.79960
nF' 480.0 1.80056
ng 435.8 1.80882
nh 404.7 1.81657
ni 365.0 1.83002
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 0.121
τ25/2325 2,325 0.429
τ25/1970 1,970 0.862
τ25/1530 1,530 0.971
τ25/1060 1,060 0.996
τ25/700 700 0.994
τ25/660 660 0.993
τ25/620 620 0.992
τ25/580 580 0.992
τ25/546 546 0.993
τ25/500 500 0.989
τ25/460 460 0.976
τ25/436 436 0.964
τ25/420 420 0.952
τ25/405 405 0.928
τ25/400 400 0.916
τ25/390 390 0.878
τ25/380 380 0.814
τ25/370 370 0.707
τ25/365 365 0.634
τ25/350 350 0.333
τ25/334 334 0.040
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 0.430
τ10/2325 2,325 0.713
τ10/1970 1,970 0.942
τ10/1530 1,530 0.988
τ10/1060 1,060 0.998
τ10/700 700 0.998
τ10/660 660 0.997
τ10/620 620 0.997
τ10/580 580 0.997
τ10/546 546 0.997
τ10/500 500 0.996
τ10/460 460 0.990
τ10/436 436 0.985
τ10/420 420 0.981
τ10/405 405 0.971
τ10/400 400 0.966
τ10/390 390 0.949
τ10/380 380 0.921
τ10/370 370 0.870
τ10/365 365 0.833
τ10/350 350 0.644
τ10/334 334 0.276
τ10/320 320 0.030
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 0.2646
PC,s 0.5222
Pd,C 0.3009
Pe,d 0.2380
Pg,F 0.5555
Pi,h 0.8106
P's,t 0.2619
P'C',s 0.5641
P'd,C' 0.2507
P'e,d 0.2356
P'g,F' 0.4927
P'i,h 0.8025
Characteristics
ΔPC,t 0.0165
ΔPC,s 0.0086
ΔPF,e -0.0024
ΔPg,F -0.0084
ΔPi,g -0.0481
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