K-VC80 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.693844 n_e = 1.696955	V_d = 53.12 V_e = 52.87	n_F - n_C = 0.013060 n_F' - n_C' = 0.013180	Coloring: 0.29 - 0.36 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.8122048 C2 = -0.011905846 C3 = 0.020876738 C4 = -0.00012892548 C5 = 0.000079704899 C6 = -0.0000044490242

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.679349
n _s	1.682931
n _r	1.687642
n _C	1.689888
n _C'	1.690517
n _0.6328	1.691105
n _D	1.693728
n _d	1.693844
n _e	1.696955
n _F	1.702948
n _F'	1.703697
n _g	1.710113
n _h	1.716073
n _i	1.726159
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8069
P_C,A'	0.3444
P_d,C	0.3029
P_e,C	0.5411
P_g,d	1.2456
P_g,F	0.5485
P_h,g	0.4563
P_i,g	1.2286
P_C',t	0.8550
P_e,C'	0.4929
P_F',e	0.5162
P_i,F'	1.7198

transmittance: 10 mm
τ_0.28	0.036
τ_0.29	0.112
τ_0.3	0.247
τ_0.31	0.321
τ_0.32	0.577
τ_0.33	0.711
τ_0.34	0.815
τ_0.35	0.888
τ_0.36	0.931
τ_0.37	0.957
τ_0.38	0.974
τ_0.39	0.981
τ_0.4	0.986
τ_0.42	0.99
τ_0.44	0.992
τ_0.46	0.996
τ_0.48	0.998
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	0.998
τ_1.5	0.998
τ₂	0.976

transmittance: 25 mm
τ_0.3	0.03
τ_0.31	0.058
τ_0.32	0.253
τ_0.33	0.426
τ_0.34	0.6
τ_0.35	0.743
τ_0.36	0.838
τ_0.37	0.895
τ_0.38	0.936
τ_0.39	0.954
τ_0.4	0.966
τ_0.42	0.976
τ_0.44	0.981
τ_0.46	0.99
τ_0.48	0.996
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	0.996
τ_1.5	0.996
τ₂	0.942

Poisson coef.: 0.273
Rigidity: 416 Pa*10⁸
Young module: 1059 Pa*10⁸
Knoop hardness: 531
Abrasion: 120

Climatic resistance: 1
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	94