SF57HTULTRA  847238.551

optical glass klein 4zu3.jpg

A classic glass type with lead oxide as an essential component for outstanding optical properties.

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 1.84666 νd 23.83
ne 1.85504 νe 23.64
nF-nC 0.035536 nF'-nC' 0.036166
Glass type
Article L
W
T
DIA
nd
vd
STEP
nd
STEP
vd
Weight
Characteristics λ [nm]
n2,325.4 2,325.4 1.79026
n1,970.1 1,970.1 1.79539
n1,529.6 1,529.6 1.80187
n1,060.0 1,060.0 1.81185
nt 1,014.0 1.81335
ns 852.1 1.82038
nr 706.5 1.83102
nC 656.3 1.83650
nC' 643.8 1.83808
Characteristics λ [nm]
n632.8 632.8 1.83957
nD 589.3 1.84636
nd 587.6 1.84666
ne 546.1 1.85504
nF 486.1 1.87204
nF' 480.0 1.87425
ng 435.8 1.89393
nh 404.7 1.91366
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 0.798
τ25/2325 2,325 0.835
τ25/1970 1,970 0.951
τ25/1530 1,530 0.994
τ25/1060 1,060 0.999
τ25/700 700 0.998
τ25/660 660 0.997
τ25/620 620 0.997
τ25/580 580 0.997
τ25/546 546 0.997
τ25/500 500 0.990
τ25/460 460 0.978
τ25/436 436 0.962
τ25/420 420 0.930
τ25/405 405 0.860
τ25/400 400 0.820
τ25/390 390 0.630
τ25/380 380 0.304
τ25/370 370 0.029
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 0.914
τ10/2325 2,325 0.930
τ10/1970 1,970 0.980
τ10/1530 1,530 0.998
τ10/1060 1,060 0.999
τ10/700 700 0.999
τ10/660 660 0.999
τ10/620 620 0.999
τ10/580 580 0.999
τ10/546 546 0.999
τ10/500 500 0.996
τ10/460 460 0.991
τ10/436 436 0.985
τ10/420 420 0.971
τ10/405 405 0.941
τ10/400 400 0.924
τ10/390 390 0.831
τ10/380 380 0.621
τ10/370 370 0.250
τ10/365 365 0.100
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 0.1976
PC,s 0.4539
Pd,C 0.2859
Pe,d 0.2356
Pg,F 0.6160
Pi,h
P's,t 0.1942
P'C',s 0.4895
P'd,C' 0.2373
P'e,d 0.2315
P'g,F' 0.5443
P'i,h
Characteristics
ΔPC,t -0.0065
ΔPC,s -0.0046
ΔPF,e 0.0026
ΔPg,F 0.0123
ΔPi,g