K-LaK10 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.720004 n_e = 1.723411	V_d = 50.31 V_e = 50.05	n_F - n_C = 0.014308 n_F' - n_C' = 0.014452	Coloring: 0.32 - 0.37 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.8932592 C2 = -0.010286232 C3 = 0.023502434 C4 = -0.00013048628 C5 = 0.000082468965 C6 = -0.0000039764808

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.704550
n _s	1.708248
n _r	1.713266
n _C	1.715695
n _C'	1.716378
n _0.6328	1.717017
n _D	1.719877
n _d	1.720004
n _e	1.723411
n _F	1.730004
n _F'	1.730830
n _g	1.737928
n _h	1.744560
n _i	1.755900
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7789
P_C,A'	0.3385
P_d,C	0.3011
P_e,C	0.5392
P_g,d	1.2526
P_g,F	0.5538
P_h,g	0.4634
P_i,g	1.2559
P_C',t	0.8266
P_e,C'	0.4915
P_F',e	0.5184
P_i,F'	1.7520

transmittance: 10 mm
τ_0.31	0.005
τ_0.32	0.079
τ_0.33	0.366
τ_0.34	0.498
τ_0.35	0.683
τ_0.36	0.803
τ_0.37	0.885
τ_0.38	0.93
τ_0.39	0.953
τ_0.4	0.964
τ_0.42	0.978
τ_0.44	0.981
τ_0.46	0.983
τ_0.48	0.985
τ_0.5	0.988
τ_0.55	0.991
τ_0.6	0.992
τ_0.65	0.995
τ_0.7	0.997
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.992
τ₂	0.964

transmittance: 25 mm
τ_0.33	0.081
τ_0.34	0.175
τ_0.35	0.385
τ_0.36	0.575
τ_0.37	0.737
τ_0.38	0.834
τ_0.39	0.888
τ_0.4	0.914
τ_0.42	0.948
τ_0.44	0.954
τ_0.46	0.958
τ_0.48	0.965
τ_0.5	0.972
τ_0.55	0.979
τ_0.6	0.982
τ_0.65	0.989
τ_0.7	0.992
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.982
τ₂	0.914

Poisson coef.: 0.275
Rigidity: 380 Pa*10⁸
Young module: 970 Pa*10⁸
Knoop hardness: 556
Abrasion: 130

Climatic resistance: 1
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	86