K5 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.522490 n_e = 1.524578	V_d = 59.64 V_e = 59.38	n_F - n_C = 0.008759 n_F' - n_C' = 0.008833	Coloring: 0.30 - 0.34 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.2843076 C2 = -0.0082009989 C3 = 0.012334967 C4 = 0.000039915279 C5 = 0.000020073945 C6 = -0.000000739979

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.512589
n _s	1.515079
n _r	1.518299
n _C	1.519822
n _C'	1.520247
n _0.6328	1.520644
n _D	1.522412
n _d	1.522490
n _e	1.524578
n _F	1.528581
n _F'	1.529080
n _g	1.533347
n _h	1.537311
n _i	1.544079
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8256
P_C,A'	0.3490
P_d,C	0.3045
P_e,C	0.5429
P_g,d	1.2394
P_g,F	0.5440
P_h,g	0.4525
P_i,g	1.2252
P_C',t	0.8742
P_e,C'	0.4944
P_F',e	0.5139
P_i,F'	1.7123

transmittance: 10 mm
τ_0.3	0.1
τ_0.31	0.35
τ_0.32	0.588
τ_0.33	0.766
τ_0.34	0.876
τ_0.35	0.929
τ_0.36	0.957
τ_0.37	0.971
τ_0.38	0.974
τ_0.39	0.982
τ_0.4	0.988
τ_0.42	0.988
τ_0.44	0.99
τ_0.46	0.99
τ_0.48	0.994
τ_0.5	0.994
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	0.99
τ_1.5	0.982
τ₂	0.925

transmittance: 25 mm
τ_0.3	0.003
τ_0.31	0.072
τ_0.32	0.265
τ_0.33	0.514
τ_0.34	0.719
τ_0.35	0.832
τ_0.36	0.896
τ_0.37	0.93
τ_0.38	0.937
τ_0.39	0.957
τ_0.4	0.971
τ_0.42	0.971
τ_0.44	0.975
τ_0.46	0.975
τ_0.48	0.985
τ_0.5	0.985
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	0.975
τ_1.5	0.957
τ₂	0.823

Poisson coef.: 0.222
Rigidity: 291 Pa*10⁸
Young module: 711 Pa*10⁸
Knoop hardness: 497
Abrasion: 110

Climatic resistance: 1
Resistance to acids: 1

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