SSK3 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.614839 n_e = 1.617702	V_d = 51.10 V_e = 50.81	n_F - n_C = 0.012030 n_F' - n_C' = 0.012156	Coloring: 0.32 - 0.35 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.5588884 C2 = -0.0091978199 C3 = 0.016728381 C4 = 0.00044960809 C5 = -0.000014061349 C6 = 0.0000015148864

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.601909
n _s	1.605014
n _r	1.609200
n _C	1.611229
n _C'	1.611800
n _0.6328	1.612335
n _D	1.614732
n _d	1.614839
n _e	1.617702
n _F	1.623259
n _F'	1.623956
n _g	1.629963
n _h	1.635608
n _i	1.645420
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7746
P_C,A'	0.3361
P_d,C	0.3000
P_e,C	0.5380
P_g,d	1.2571
P_g,F	0.5572
P_h,g	0.4692
P_i,g	1.2848
P_C',t	0.8221
P_e,C'	0.4906
P_F',e	0.5198
P_i,F'	1.7841

transmittance: 10 mm
τ_0.32	0.05
τ_0.33	0.32
τ_0.34	0.688
τ_0.35	0.86
τ_0.36	0.926
τ_0.37	0.957
τ_0.38	0.971
τ_0.39	0.98
τ_0.4	0.982
τ_0.42	0.985
τ_0.44	0.985
τ_0.46	0.988
τ_0.48	0.99
τ_0.5	0.99
τ_0.55	0.992
τ_0.6	0.995
τ_0.65	0.995
τ_0.7	0.997
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.998
τ₂	0.995

transmittance: 25 mm
τ_0.33	0.062
τ_0.34	0.393
τ_0.35	0.686
τ_0.36	0.826
τ_0.37	0.896
τ_0.38	0.93
τ_0.39	0.95
τ_0.4	0.957
τ_0.42	0.964
τ_0.44	0.964
τ_0.46	0.971
τ_0.48	0.975
τ_0.5	0.975
τ_0.55	0.982
τ_0.6	0.989
τ_0.65	0.989
τ_0.7	0.992
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.996
τ₂	0.989

Poisson coef.: 0.26
Rigidity: 295 Pa*10⁸
Young module: 733 Pa*10⁸
Knoop hardness: 470
Abrasion: 150

Climatic resistance: 1
Resistance to acids: 3

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	76