K-VC81 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.755120 n_e = 1.759060	V_d = 45.59 V_e = 45.36	n_F - n_C = 0.016560 n_F' - n_C' = 0.016730	Coloring: 0.31 - 0.39 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 3.0049068 C2 = -0.013104501 C3 = 0.027061268 C4 = 0.000012975893 C5 = 0.000070805863 C6 = -0.0000021408122

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.737189
n _s	1.741511
n _r	1.747330
n _C	1.750139
n _C'	1.750928
n _0.6328	1.751667
n _D	1.754973
n _d	1.755120
n _e	1.759060
n _F	1.766700
n _F'	1.767659
n _g	1.775930
n _h	1.783720
n _i	1.797259
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7819
P_C,A'	0.3385
P_d,C	0.3007
P_e,C	0.5386
P_g,d	1.2565
P_g,F	0.5573
P_h,g	0.4703
P_i,g	1.2879
P_C',t	0.8296
P_e,C'	0.4910
P_F',e	0.5192
P_i,F'	1.7874

transmittance: 10 mm
τ_0.3	0.027
τ_0.31	0.103
τ_0.32	0.242
τ_0.33	0.397
τ_0.34	0.559
τ_0.35	0.701
τ_0.36	0.811
τ_0.37	0.889
τ_0.38	0.925
τ_0.39	0.951
τ_0.4	0.967
τ_0.42	0.982
τ_0.44	0.99
τ_0.46	0.992
τ_0.48	0.997
τ_0.5	0.998
τ_0.55	0.998
τ_0.6	0.998
τ_0.65	0.998
τ_0.7	0.998
τ_0.8	0.998
τ_1.06	0.991
τ_1.5	0.987
τ₂	0.951

transmittance: 25 mm
τ_0.32	0.028
τ_0.33	0.099
τ_0.34	0.234
τ_0.35	0.411
τ_0.36	0.593
τ_0.37	0.745
τ_0.38	0.823
τ_0.39	0.883
τ_0.4	0.92
τ_0.42	0.957
τ_0.44	0.975
τ_0.46	0.982
τ_0.48	0.992
τ_0.5	0.996
τ_0.55	0.996
τ_0.6	0.996
τ_0.65	0.996
τ_0.7	0.996
τ_0.8	0.996
τ_1.06	0.978
τ_1.5	0.968
τ₂	0.883

Poisson coef.: 0.284
Rigidity: 459 Pa*10⁸
Young module: 1180 Pa*10⁸
Knoop hardness: 706
Abrasion: 80

Climatic resistance: 1
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	88