K-LaSKn1 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.754996 n_e = 1.758434	V_d = 52.34 V_e = 52.11	n_F - n_C = 0.014422 n_F' - n_C' = 0.014553	Coloring: 0.29 - 0.38 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 3.0196879 C2 = -0.016165878 C3 = 0.020547347 C4 = 0.00094212627 C5 = -0.000075208331 C6 = 0.000004426339

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.738929
n _s	1.742944
n _r	1.748150
n _C	1.750628
n _C'	1.751322
n _0.6328	1.751971
n _D	1.754868
n _d	1.754996
n _e	1.758434
n _F	1.765050
n _F'	1.765875
n _g	1.772942
n _h	1.779518
n _i	1.790830
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8111
P_C,A'	0.3441
P_d,C	0.3029
P_e,C	0.5412
P_g,d	1.2443
P_g,F	0.5472
P_h,g	0.4559
P_i,g	1.2402
P_C',t	0.8592
P_e,C'	0.4931
P_F',e	0.5159
P_i,F'	1.7302

transmittance: 10 mm
τ_0.28	0.005
τ_0.29	0.064
τ_0.3	0.133
τ_0.31	0.201
τ_0.32	0.373
τ_0.33	0.516
τ_0.34	0.654
τ_0.35	0.767
τ_0.36	0.853
τ_0.37	0.908
τ_0.38	0.943
τ_0.39	0.964
τ_0.4	0.977
τ_0.42	0.99
τ_0.44	0.992
τ_0.46	0.998
τ_0.48	0.998
τ_0.5	0.998
τ_0.55	0.998
τ_0.6	0.998
τ_0.65	0.998
τ_0.7	0.998
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.995
τ₂	0.961

transmittance: 25 mm
τ_0.31	0.018
τ_0.32	0.085
τ_0.33	0.192
τ_0.34	0.346
τ_0.35	0.516
τ_0.36	0.672
τ_0.37	0.786
τ_0.38	0.864
τ_0.39	0.913
τ_0.4	0.944
τ_0.42	0.975
τ_0.44	0.982
τ_0.46	0.996
τ_0.48	0.996
τ_0.5	0.996
τ_0.55	0.996
τ_0.6	0.996
τ_0.65	0.996
τ_0.7	0.996
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.989
τ₂	0.906

Poisson coef.: 0.283
Rigidity: 443 Pa*10⁸
Young module: 1136 Pa*10⁸
Knoop hardness: 696
Abrasion: 64

Climatic resistance: 1
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	70