SSKn1 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.648504 n_e = 1.651417	V_d = 53.00 V_e = 52.71	n_F - n_C = 0.012235 n_F' - n_C' = 0.012357	Coloring: 0.33 - 0.38 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.6654478 C2 = -0.0094566671 C3 = 0.018571017 C4 = 0.000099978444 C5 = 0.000033877062 C6 = -0.000001011318

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.635210
n _s	1.638423
n _r	1.642738
n _C	1.644818
n _C'	1.645402
n _0.6328	1.645949
n _D	1.648396
n _d	1.648504
n _e	1.651417
n _F	1.657054
n _F'	1.657760
n _g	1.663837
n _h	1.669536
n _i	1.679380
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7852
P_C,A'	0.3394
P_d,C	0.3012
P_e,C	0.5393
P_g,d	1.2531
P_g,F	0.5544
P_h,g	0.4657
P_i,g	1.2702
P_C',t	0.8330
P_e,C'	0.4915
P_F',e	0.5184
P_i,F'	1.7669

transmittance: 10 mm
τ_0.33	0.05
τ_0.34	0.2
τ_0.35	0.493
τ_0.36	0.714
τ_0.37	0.839
τ_0.38	0.907
τ_0.39	0.943
τ_0.4	0.957
τ_0.42	0.974
τ_0.44	0.978
τ_0.46	0.982
τ_0.48	0.985
τ_0.5	0.985
τ_0.55	0.99
τ_0.6	0.99
τ_0.65	0.994
τ_0.7	0.995
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.998
τ₂	0.995

transmittance: 25 mm
τ_0.34	0.018
τ_0.35	0.171
τ_0.36	0.43
τ_0.37	0.646
τ_0.38	0.783
τ_0.39	0.864
τ_0.4	0.896
τ_0.42	0.937
τ_0.44	0.947
τ_0.46	0.957
τ_0.48	0.964
τ_0.5	0.964
τ_0.55	0.975
τ_0.6	0.975
τ_0.65	0.985
τ_0.7	0.989
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.996
τ₂	0.989

Poisson coef.: 0.277
Rigidity: 328 Pa*10⁸
Young module: 839 Pa*10⁸
Knoop hardness: 498
Abrasion: 170

Climatic resistance: 2
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	83