K-LaKn14 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.741001 n_e = 1.744355	V_d = 52.67 V_e = 52.45	n_F - n_C = 0.014066 n_F' - n_C' = 0.014191	Coloring: 0.29 - 0.37 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.970246246827 C2 = -0.01446455228142 C3 = 0.02148262989067 C4 = 0.000465359124064 C5 = -0.00001677843283687 C6 = 0.000001576072577336

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.725310
n _s	1.729212
n _r	1.734307
n _C	1.736732
n _C'	1.737411
n _0.6328	1.738046
n _D	1.740876
n _d	1.741001
n _e	1.744355
n _F	1.750799
n _F'	1.751602
n _g	1.758480
n _h	1.764879
n _i	1.775860
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8120
P_C,A'	0.3455
P_d,C	0.3035
P_e,C	0.5418
P_g,d	1.2425
P_g,F	0.5460
P_h,g	0.4548
P_i,g	1.2355
P_C',t	0.8603
P_e,C'	0.4936
P_F',e	0.5152
P_i,F'	1.7244

transmittance: 10 mm
τ_0.28	0.039
τ_0.29	0.096
τ_0.3	0.199
τ_0.31	0.228
τ_0.32	0.474
τ_0.33	0.614
τ_0.34	0.732
τ_0.35	0.823
τ_0.36	0.888
τ_0.37	0.931
τ_0.38	0.956
τ_0.39	0.971
τ_0.4	0.98
τ_0.42	0.988
τ_0.44	0.992
τ_0.46	0.994
τ_0.48	0.996
τ_0.5	0.997
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	0.998
τ₂	0.968

transmittance: 25 mm
τ_0.29	0.002
τ_0.3	0.017
τ_0.31	0.024
τ_0.32	0.155
τ_0.33	0.295
τ_0.34	0.458
τ_0.35	0.615
τ_0.36	0.743
τ_0.37	0.835
τ_0.38	0.893
τ_0.39	0.928
τ_0.4	0.949
τ_0.42	0.97
τ_0.44	0.98
τ_0.46	0.985
τ_0.48	0.989
τ_0.5	0.992
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	0.996
τ₂	0.923

Poisson coef.: 0.28
Rigidity: 459 Pa*10⁸
Young module: 1174 Pa*10⁸
Knoop hardness: 713
Abrasion: 73

Climatic resistance: 1
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	74