LF2 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.589209 n_e = 1.592622	V_d = 40.96 V_e = 40.68	n_F - n_C = 0.014382 n_F' - n_C' = 0.014564	Coloring: 0.32 - 0.35 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.4678624 C2 = -0.0084300249 C3 = 0.019414393 C4 = 0.00048493866 C5 = 0.0000093867722 C6 = 0.0000014474072

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.574340
n _s	1.577792
n _r	1.582590
n _C	1.584955
n _C'	1.585624
n _0.6328	1.586252
n _D	1.589083
n _d	1.589209
n _e	1.592622
n _F	1.599337
n _F'	1.600188
n _g	1.607603
n _h	1.614708
n _i	1.627370
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7380
P_C,A'	0.3261
P_d,C	0.2958
P_e,C	0.5330
P_g,d	1.2789
P_g,F	0.5747
P_h,g	0.4939
P_i,g	1.3743
P_C',t	0.7846
P_e,C'	0.4865
P_F',e	0.5261
P_i,F'	1.8899

transmittance: 10 mm
τ_0.32	0.082
τ_0.33	0.459
τ_0.34	0.736
τ_0.35	0.867
τ_0.36	0.933
τ_0.37	0.961
τ_0.38	0.968
τ_0.39	0.982
τ_0.4	0.988
τ_0.42	0.988
τ_0.44	0.988
τ_0.46	0.99
τ_0.48	0.99
τ_0.5	0.991
τ_0.55	0.994
τ_0.6	0.995
τ_0.65	0.995
τ_0.7	0.997
τ_0.8	0.998
τ_1.06	0.997
τ_1.5	0.992
τ₂	0.923

transmittance: 25 mm
τ_0.33	0.142
τ_0.34	0.464
τ_0.35	0.7
τ_0.36	0.842
τ_0.37	0.906
τ_0.38	0.923
τ_0.39	0.957
τ_0.4	0.971
τ_0.42	0.971
τ_0.44	0.971
τ_0.46	0.975
τ_0.48	0.975
τ_0.5	0.978
τ_0.55	0.985
τ_0.6	0.989
τ_0.65	0.989
τ_0.7	0.992
τ_0.8	0.996
τ_1.06	0.992
τ_1.5	0.982
τ₂	0.82

Poisson coef.: 0.224
Rigidity: 247 Pa*10⁸
Young module: 606 Pa*10⁸
Knoop hardness: 469
Abrasion: 150

Climatic resistance: 1
Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	104