K-SK16 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.620407 n_e = 1.622861	V_d = 60.30 V_e = 60.05	n_F - n_C = 0.010287 n_F' - n_C' = 0.010371	Coloring: 0.29 - 0.35 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.5843629 C2 = -0.010743741 C3 = 0.014943604 C4 = 0.00020007994 C5 = 0.0000045624595 C6 = -0.00000012296939

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.608740
n _s	1.611686
n _r	1.615479
n _C	1.617270
n _C'	1.617770
n _0.6328	1.618237
n _D	1.620315
n _d	1.620407
n _e	1.622861
n _F	1.627558
n _F'	1.628142
n _g	1.633128
n _h	1.637740
n _i	1.645569
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8292
P_C,A'	0.3496
P_d,C	0.3049
P_e,C	0.5434
P_g,d	1.2365
P_g,F	0.5414
P_h,g	0.4483
P_i,g	1.2093
P_C',t	0.8778
P_e,C'	0.4948
P_F',e	0.5133
P_i,F'	1.6940

transmittance: 10 mm
τ_0.29	0.032
τ_0.3	0.183
τ_0.31	0.425
τ_0.32	0.615
τ_0.33	0.772
τ_0.34	0.854
τ_0.35	0.915
τ_0.36	0.946
τ_0.37	0.963
τ_0.38	0.975
τ_0.39	0.981
τ_0.4	0.985
τ_0.42	0.985
τ_0.44	0.988
τ_0.46	0.988
τ_0.48	0.99
τ_0.5	0.991
τ_0.55	0.991
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	0.974

transmittance: 25 mm
τ_0.3	0.014
τ_0.31	0.118
τ_0.32	0.297
τ_0.33	0.525
τ_0.34	0.675
τ_0.35	0.801
τ_0.36	0.87
τ_0.37	0.91
τ_0.38	0.94
τ_0.39	0.954
τ_0.4	0.964
τ_0.42	0.964
τ_0.44	0.971
τ_0.46	0.971
τ_0.48	0.975
τ_0.5	0.978
τ_0.55	0.978
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	0.937

Poisson coef.: 0.267
Rigidity: 348 Pa*10⁸
Young module: 881 Pa*10⁸
Knoop hardness: 490
Abrasion: 150

Climatic resistance: 2
Resistance to acids: 5

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