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SF56A

Glass Code:  785261.492

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

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optical glass klein 4zu3.jpg
Characteristics
nd 1.78470 νd 26.08
ne 1.79180 νe 25.87
nF-nC 0.030092 nF'-nC' 0.030603
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Download Data sheet SF56A
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 1.73406
n1,970.1 1,970.1 1.73925
n1,529.6 1,529.6 1.74559
n1,060.0 1,060.0 1.75473
nt 1,014.0 1.75606
ns 852.1 1.76220
nr 706.5 1.77136
nC 656.3 1.77605
nC' 643.8 1.77740
Characteristics λ [nm]
n632.8 632.8 1.77866
nD 589.3 1.78444
nd 587.6 1.78470
ne 546.1 1.79180
nF 486.1 1.80615
nF' 480.0 1.80800
ng 435.8 1.82449
nh 404.7 1.84092
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 0.700
τ25/2325 2,325 0.760
τ25/1970 1,970 0.920
τ25/1530 1,530 0.989
τ25/1060 1,060 0.997
τ25/700 700 0.995
τ25/660 660 0.993
τ25/620 620 0.994
τ25/580 580 0.994
τ25/546 546 0.994
τ25/500 500 0.989
τ25/460 460 0.974
τ25/436 436 0.950
τ25/420 420 0.900
τ25/405 405 0.760
τ25/400 400 0.680
τ25/390 390 0.410
τ25/380 380 0.100
τ25/370 370 0.010
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 0.867
τ10/2325 2,325 0.896
τ10/1970 1,970 0.967
τ10/1530 1,530 0.996
τ10/1060 1,060 0.999
τ10/700 700 0.998
τ10/660 660 0.997
τ10/620 620 0.998
τ10/580 580 0.998
τ10/546 546 0.998
τ10/500 500 0.996
τ10/460 460 0.990
τ10/436 436 0.980
τ10/420 420 0.959
τ10/405 405 0.896
τ10/400 400 0.857
τ10/390 390 0.700
τ10/380 380 0.398
τ10/370 370 0.120
τ10/365 365 0.040
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
Partial Dispersion
Characteristics
Ps,t 0.2040
PC,s 0.4605
Pd,C 0.2874
Pe,d 0.2359
Pg,F 0.6098
Pi,h
P's,t 0.2006
P'C',s 0.4967
P'd,C' 0.2387
P'e,d 0.2319
P'g,F' 0.5390
P'i,h
Characteristics
ΔPC,t -0.0042
ΔPC,s -0.0032
ΔPF,e 0.0021
ΔPg,F 0.0098
ΔPi,g
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