SSK1 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.617198 n_e = 1.619918	V_d = 54.05 V_e = 53.76	n_F - n_C = 0.011418 n_F' - n_C' = 0.011529	Coloring: 0.32 - 0.35 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.567224 C2 = -0.0085830688 C3 = 0.017273276 C4 = 0.000020972565 C5 = 0.000040081193 C6 = -0.0000016060313

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.604760
n _s	1.607768
n _r	1.611807
n _C	1.613753
n _C'	1.614300
n _0.6328	1.614811
n _D	1.617097
n _d	1.617198
n _e	1.619918
n _F	1.625172
n _F'	1.625829
n _g	1.631479
n _h	1.636760
n _i	1.645829
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7876
P_C,A'	0.3403
P_d,C	0.3017
P_e,C	0.5398
P_g,d	1.2506
P_g,F	0.5523
P_h,g	0.4624
P_i,g	1.2568
P_C',t	0.8355
P_e,C'	0.4920
P_F',e	0.5177
P_i,F'	1.7515

transmittance: 10 mm
τ_0.32	0.154
τ_0.33	0.528
τ_0.34	0.772
τ_0.35	0.88
τ_0.36	0.936
τ_0.37	0.961
τ_0.38	0.968
τ_0.39	0.975
τ_0.4	0.981
τ_0.42	0.982
τ_0.44	0.985
τ_0.46	0.988
τ_0.48	0.99
τ_0.5	0.991
τ_0.55	0.995
τ_0.6	0.995
τ_0.65	0.995
τ_0.7	0.997
τ_0.8	0.998
τ_1.06	0.997
τ_1.5	0.998
τ₂	0.985

transmittance: 25 mm
τ_0.33	0.203
τ_0.34	0.525
τ_0.35	0.728
τ_0.36	0.848
τ_0.37	0.906
τ_0.38	0.923
τ_0.39	0.94
τ_0.4	0.954
τ_0.42	0.957
τ_0.44	0.964
τ_0.46	0.971
τ_0.48	0.975
τ_0.5	0.978
τ_0.55	0.989
τ_0.6	0.989
τ_0.65	0.989
τ_0.7	0.992
τ_0.8	0.996
τ_1.06	0.992
τ_1.5	0.996
τ₂	0.964

Poisson coef.: 0.247
Rigidity: 281 Pa*10⁸
Young module: 699 Pa*10⁸
Knoop hardness: 480
Abrasion: 140

Climatic resistance: 1
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	72