K-VC78 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.669096 n_e = 1.671974	V_d = 55.41 V_e = 55.17	n_F - n_C = 0.012073 n_F' - n_C' = 0.012178	Coloring: 0.28 - 0.35 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.7351361 C2 = -0.011822071 C3 = 0.018279111 C4 = 0.00017985842 C5 = 0.000016773012 C6 = -0.00000053070611

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.655579
n _s	1.658948
n _r	1.663340
n _C	1.665427
n _C'	1.666011
n _0.6328	1.666557
n _D	1.668988
n _d	1.669096
n _e	1.671974
n _F	1.677501
n _F'	1.678190
n _g	1.684085
n _h	1.689562
n _i	1.698909
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8156
P_C,A'	0.3465
P_d,C	0.3038
P_e,C	0.5422
P_g,d	1.2415
P_g,F	0.5453
P_h,g	0.4535
P_i,g	1.2277
P_C',t	0.8640
P_e,C'	0.4938
P_F',e	0.5148
P_i,F'	1.7160

transmittance: 10 mm
τ_0.27	0.032
τ_0.28	0.111
τ_0.29	0.232
τ_0.3	0.279
τ_0.31	0.552
τ_0.32	0.71
τ_0.33	0.826
τ_0.34	0.898
τ_0.35	0.943
τ_0.36	0.967
τ_0.37	0.982
τ_0.38	0.985
τ_0.39	0.988
τ_0.4	0.99
τ_0.42	0.99
τ_0.44	0.991
τ_0.46	0.994
τ_0.48	0.995
τ_0.5	0.995
τ_0.55	0.995
τ_0.6	0.997
τ_0.65	0.998
τ_0.7	0.998
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.995
τ₂	0.968

transmittance: 25 mm
τ_0.29	0.026
τ_0.3	0.041
τ_0.31	0.27
τ_0.32	0.425
τ_0.33	0.62
τ_0.34	0.765
τ_0.35	0.864
τ_0.36	0.92
τ_0.37	0.957
τ_0.38	0.964
τ_0.39	0.971
τ_0.4	0.975
τ_0.42	0.975
τ_0.44	0.978
τ_0.46	0.985
τ_0.48	0.989
τ_0.5	0.989
τ_0.55	0.989
τ_0.6	0.992
τ_0.65	0.996
τ_0.7	0.996
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.989
τ₂	0.923

Poisson coef.: 0.279
Rigidity: 415 Pa*10⁸
Young module: 1061 Pa*10⁸
Knoop hardness: 561
Abrasion: 110

Climatic resistance: 2
Resistance to acids: 4

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