SK10 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.622799 n_e = 1.625409	V_d = 56.86 V_e = 56.59	n_F - n_C = 0.010951 n_F' - n_C' = 0.011051	Coloring: 0.31 - 0.35 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.5882212 C2 = -0.0094630395 C3 = 0.016107294 C4 = 0.00020019202 C5 = 0.0000076743138 C6 = 0.0000000078250138

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.610699
n _s	1.613670
n _r	1.617600
n _C	1.619481
n _C'	1.620008
n _0.6328	1.620501
n _D	1.622702
n _d	1.622799
n _e	1.625409
n _F	1.630432
n _F'	1.631059
n _g	1.636427
n _h	1.641421
n _i	1.649969
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8018
P_C,A'	0.3436
P_d,C	0.3029
P_e,C	0.5413
P_g,d	1.2444
P_g,F	0.5473
P_h,g	0.4560
P_i,g	1.2365
P_C',t	0.8499
P_e,C'	0.4932
P_F',e	0.5159
P_i,F'	1.7267

transmittance: 10 mm
τ_0.31	0.066
τ_0.32	0.34
τ_0.33	0.644
τ_0.34	0.8
τ_0.35	0.901
τ_0.36	0.936
τ_0.37	0.961
τ_0.38	0.971
τ_0.39	0.98
τ_0.4	0.985
τ_0.42	0.988
τ_0.44	0.988
τ_0.46	0.988
τ_0.48	0.99
τ_0.5	0.99
τ_0.55	0.991
τ_0.6	0.994
τ_0.65	0.995
τ_0.7	0.995
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.998
τ₂	0.985

transmittance: 25 mm
τ_0.32	0.067
τ_0.33	0.333
τ_0.34	0.573
τ_0.35	0.771
τ_0.36	0.848
τ_0.37	0.906
τ_0.38	0.93
τ_0.39	0.95
τ_0.4	0.964
τ_0.42	0.971
τ_0.44	0.971
τ_0.46	0.971
τ_0.48	0.975
τ_0.5	0.975
τ_0.55	0.978
τ_0.6	0.985
τ_0.65	0.989
τ_0.7	0.989
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.996
τ₂	0.964

Poisson coef.: 0.251
Rigidity: 323 Pa*10⁸
Young module: 808 Pa*10⁸
Knoop hardness: 560
Abrasion: 160

Climatic resistance: 1
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	79