K-SSK9 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

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Main parameters
n_d = 1.620120 n_e = 1.623081	V_d = 49.81 V_e = 49.52	n_F - n_C = 0.012448 n_F' - n_C' = 0.012581	Coloring: 0.34 - 0.38 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.5732241 C2 = -0.0090800144 C3 = 0.018042766 C4 = 0.00023686473 C5 = 0.000017598292 C6 = 0.0000003417291

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.606759
n _s	1.609961
n _r	1.614290
n _C	1.616388
n _C'	1.616979
n _0.6328	1.617532
n _D	1.620010
n _d	1.620120
n _e	1.623081
n _F	1.628836
n _F'	1.629560
n _g	1.635811
n _h	1.641719
n _i	1.652060
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7735
P_C,A'	0.3359
P_d,C	0.2998
P_e,C	0.5376
P_g,d	1.2605
P_g,F	0.5603
P_h,g	0.4745
P_i,g	1.3052
P_C',t	0.8209
P_e,C'	0.4902
P_F',e	0.5205
P_i,F'	1.8074

transmittance: 10 mm
τ_0.34	0.042
τ_0.35	0.329
τ_0.36	0.65
τ_0.37	0.833
τ_0.38	0.908
τ_0.39	0.943
τ_0.4	0.965
τ_0.42	0.981
τ_0.44	0.985
τ_0.46	0.988
τ_0.48	0.99
τ_0.5	0.991
τ_0.55	0.994
τ_0.6	0.995
τ_0.65	0.997
τ_0.7	0.998
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.998
τ₂	0.981

transmittance: 25 mm
τ_0.35	0.062
τ_0.36	0.341
τ_0.37	0.633
τ_0.38	0.786
τ_0.39	0.864
τ_0.4	0.916
τ_0.42	0.954
τ_0.44	0.964
τ_0.46	0.971
τ_0.48	0.975
τ_0.5	0.978
τ_0.55	0.985
τ_0.6	0.989
τ_0.65	0.992
τ_0.7	0.996
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.996
τ₂	0.954

Poisson coef.: 0.24
Rigidity: 330 Pa*10⁸
Young module: 818 Pa*10⁸
Knoop hardness: 578
Abrasion: 180

Climatic resistance: 2
Resistance to acids: 3

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	98