LF3 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.582151 n_e = 1.585438	V_d = 42.03 V_e = 41.75	n_F - n_C = 0.013850 n_F' - n_C' = 0.014020	Coloring: 0.32 - 0.35 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.4475694 C2 = -0.0084479251 C3 = 0.018926282 C4 = 0.0004035555 C5 = 0.000009085234 C6 = 0.0000017052596

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.567699
n _s	1.571081
n _r	1.575750
n _C	1.578041
n _C'	1.578688
n _0.6328	1.579295
n _D	1.582029
n _d	1.582151
n _e	1.585438
n _F	1.591891
n _F'	1.592709
n _g	1.599819
n _h	1.606630
n _i	1.618789
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7466
P_C,A'	0.3285
P_d,C	0.2967
P_e,C	0.5341
P_g,d	1.2756
P_g,F	0.5723
P_h,g	0.4917
P_i,g	1.3696
P_C',t	0.7933
P_e,C'	0.4873
P_F',e	0.5249
P_i,F'	1.8829

transmittance: 10 mm
τ_0.32	0.162
τ_0.33	0.588
τ_0.34	0.799
τ_0.35	0.901
τ_0.36	0.953
τ_0.37	0.974
τ_0.38	0.978
τ_0.39	0.991
τ_0.4	0.995
τ_0.42	0.995
τ_0.44	0.995
τ_0.46	0.997
τ_0.48	0.997
τ_0.5	0.997
τ_0.55	0.997
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	0.934

transmittance: 25 mm
τ_0.32	0.01
τ_0.33	0.265
τ_0.34	0.571
τ_0.35	0.771
τ_0.36	0.887
τ_0.37	0.937
τ_0.38	0.947
τ_0.39	0.978
τ_0.4	0.989
τ_0.42	0.989
τ_0.44	0.989
τ_0.46	0.992
τ_0.48	0.992
τ_0.5	0.992
τ_0.55	0.992
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	0.845

Poisson coef.: 0.223
Rigidity: 257 Pa*10⁸
Young module: 629 Pa*10⁸
Knoop hardness: 425
Abrasion: 140

Climatic resistance: 1
Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	102