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K7

Glass Code:  511604.253

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 1.51112 νd 60.41
ne 1.51314 νe 60.15
nF-nC 0.008461 nF'-nC' 0.008531
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Download Data sheet K7
Technical Details
Refractive Indices
Characteristics λ [nm]
n2,325.4 2,325.4 1.48553
n1,970.1 1,970.1 1.49046
n1,529.6 1,529.6 1.49565
n1,060.0 1,060.0 1.50091
nt 1,014.0 1.50150
ns 852.1 1.50394
nr 706.5 1.50707
nC 656.3 1.50854
nC' 643.8 1.50895
Characteristics λ [nm]
n632.8 632.8 1.50934
nD 589.3 1.51105
nd 587.6 1.51112
ne 546.1 1.51314
nF 486.1 1.51700
nF' 480.0 1.51748
ng 435.8 1.52159
nh 404.7 1.52540
ni 365.0 1.53189
Characteristics λ [nm]
n334.1 334.1 1.53891
n312.6 312.6 1.54537
n296.7 296.7
n280.4 280.4
n248.3 248.3
Internal Transmittance
Characteristics λ [nm]
τ25/2500 2,500 0.340
τ25/2325 2,325 0.500
τ25/1970 1,970 0.790
τ25/1530 1,530 0.980
τ25/1060 1,060 0.994
τ25/700 700 0.996
τ25/660 660 0.995
τ25/620 620 0.995
τ25/580 580 0.994
τ25/546 546 0.994
τ25/500 500 0.993
τ25/460 460 0.990
τ25/436 436 0.990
τ25/420 420 0.990
τ25/405 405 0.990
τ25/400 400 0.990
τ25/390 390 0.988
τ25/380 380 0.983
τ25/370 370 0.976
τ25/365 365 0.971
τ25/350 350 0.940
τ25/334 334 0.780
τ25/320 320 0.420
τ25/310 310 0.100
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 0.650
τ10/2325 2,325 0.758
τ10/1970 1,970 0.910
τ10/1530 1,530 0.992
τ10/1060 1,060 0.998
τ10/700 700 0.998
τ10/660 660 0.998
τ10/620 620 0.998
τ10/580 580 0.998
τ10/546 546 0.998
τ10/500 500 0.997
τ10/460 460 0.996
τ10/436 436 0.996
τ10/420 420 0.996
τ10/405 405 0.996
τ10/400 400 0.996
τ10/390 390 0.995
τ10/380 380 0.993
τ10/370 370 0.990
τ10/365 365 0.988
τ10/350 350 0.976
τ10/334 334 0.905
τ10/320 320 0.707
τ10/310 310 0.398
τ10/300 300 0.090
τ10/290 290
τ10/280 280
τ10/270 270
τ10/260 260
τ10/250 250
Partial Dispersion
Characteristics
Ps,t 0.2880
PC,s 0.5436
Pd,C 0.3049
Pe,d 0.2385
Pg,F 0.5422
Pi,h 0.7677
P's,t 0.2857
P'C',s 0.5874
P'd,C' 0.2542
P'e,d 0.2365
P'g,F' 0.4814
P'i,h 0.7614
Characteristics
ΔPC,t 0.0001
ΔPC,s -0.0001
ΔPF,e 0.0000
ΔPg,F 0.0000
ΔPi,g -0.0001
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