K-VC79 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.609695 n_e = 1.612213	V_d = 57.73 V_e = 57.48	n_F - n_C = 0.010560 n_F' - n_C' = 0.010649	Coloring: 0.29 - 0.34 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.549393 C2 = -0.010966263 C3 = 0.014872612 C4 = 0.00031043762 C5 = -0.0000090553419 C6 = 0.00000067268873

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.597770
n _s	1.600775
n _r	1.604648
n _C	1.606481
n _C'	1.606993
n _0.6328	1.607471
n _D	1.609601
n _d	1.609695
n _e	1.612213
n _F	1.617041
n _F'	1.617642
n _g	1.622777
n _h	1.627536
n _i	1.635650
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8248
P_C,A'	0.3482
P_d,C	0.3043
P_e,C	0.5428
P_g,d	1.2387
P_g,F	0.5431
P_h,g	0.4506
P_i,g	1.2190
P_C',t	0.8733
P_e,C'	0.4943
P_F',e	0.5140
P_i,F'	1.7052

transmittance: 10 mm
τ_0.27	0.022
τ_0.28	0.103
τ_0.29	0.26
τ_0.3	0.378
τ_0.31	0.669
τ_0.32	0.799
τ_0.33	0.891
τ_0.34	0.939
τ_0.35	0.964
τ_0.36	0.978
τ_0.37	0.982
τ_0.38	0.985
τ_0.39	0.985
τ_0.4	0.985
τ_0.42	0.985
τ_0.44	0.988
τ_0.46	0.99
τ_0.48	0.991
τ_0.5	0.992
τ_0.55	0.994
τ_0.6	0.994
τ_0.65	0.997
τ_0.7	0.997
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.997
τ₂	0.978

transmittance: 25 mm
τ_0.29	0.034
τ_0.3	0.088
τ_0.31	0.366
τ_0.32	0.571
τ_0.33	0.751
τ_0.34	0.854
τ_0.35	0.913
τ_0.36	0.947
τ_0.37	0.957
τ_0.38	0.964
τ_0.39	0.964
τ_0.4	0.964
τ_0.42	0.964
τ_0.44	0.971
τ_0.46	0.975
τ_0.48	0.978
τ_0.5	0.982
τ_0.55	0.985
τ_0.6	0.985
τ_0.65	0.992
τ_0.7	0.992
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.992
τ₂	0.947

Poisson coef.: 0.256
Rigidity: 401 Pa*10⁸
Young module: 1008 Pa*10⁸
Knoop hardness: 599
Abrasion: 120

Climatic resistance: 2
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	93