K-VC89 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.809996 n_e = 1.814692	V_d = 40.98 V_e = 40.75	n_F - n_C = 0.019762 n_F' - n_C' = 0.019989	Coloring: 0.34 - 0.40 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 3.175701040804 C2 = -0.008595644248999 C3 = 0.03667261515511 C4 = -0.0008832246021484 C5 = 0.0002071601020361 C6 = -0.000007040697823868

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.789379
n _s	1.794103
n _r	1.800801
n _C	1.804099
n _C'	1.805030
n _0.6328	1.805902
n _D	1.809822
n _d	1.809996
n _e	1.814692
n _F	1.823861
n _F'	1.825019
n _g	1.835066
n _h	1.844641
n _i	1.861529
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7447
P_C,A'	0.3313
P_d,C	0.2984
P_e,C	0.5360
P_g,d	1.2685
P_g,F	0.5669
P_h,g	0.4844
P_i,g	1.3390
P_C',t	0.7919
P_e,C'	0.4889
P_F',e	0.5225
P_i,F'	1.8474

transmittance: 10 mm
τ_0.33	0.031
τ_0.34	0.076
τ_0.35	0.326
τ_0.36	0.584
τ_0.37	0.754
τ_0.38	0.854
τ_0.39	0.91
τ_0.4	0.943
τ_0.42	0.972
τ_0.44	0.981
τ_0.46	0.985
τ_0.48	0.99
τ_0.5	0.995
τ_0.55	0.996
τ_0.6	0.996
τ_0.65	0.996
τ_0.7	0.998
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.998
τ₂	0.973

transmittance: 25 mm
τ_0.34	0.002
τ_0.35	0.061
τ_0.36	0.26
τ_0.37	0.493
τ_0.38	0.675
τ_0.39	0.789
τ_0.4	0.862
τ_0.42	0.931
τ_0.44	0.953
τ_0.46	0.963
τ_0.48	0.976
τ_0.5	0.987
τ_0.55	0.992
τ_0.6	0.994
τ_0.65	0.994
τ_0.7	0.995
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.996
τ₂	0.933

Poisson coef.: 0.29
Rigidity: 436 Pa*10⁸
Young module: 1124 Pa*10⁸
Knoop hardness: 644
Abrasion: 78

Climatic resistance: 1
Resistance to acids: 3

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