LaFn10 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.720155 n_e = 1.724218	V_d = 42.06 V_e = 41.77	n_F - n_C = 0.017120 n_F' - n_C' = 0.017334	Coloring: 0.36 - 0.40 mkm.

Type: Schott
Spectral range: 0.4046561 - 1.01398 mkm.
C1 = 2.8843797 C2 = -0.010848387 C3 = 0.025087198 C4 = 0.00063568584 C5 = 0.0000049636279 C6 = 0.000002514032

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.702420
n _s	1.706540
n _r	1.712265
n _C	1.715085
n _C'	1.715883
n _0.6328	1.716631
n _D	1.720004
n _d	1.720155
n _e	1.724218
n _F	1.732205
n _F'	1.733217
n _g	1.742028
n _h	1.750470
n _i	-----
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7397
P_C,A'	0.3267
P_d,C	0.2961
P_e,C	0.5334
P_g,d	1.2776
P_g,F	0.5737
P_h,g	0.4930
P_i,g	-----
P_C',t	0.7863
P_e,C'	0.4868
P_F',e	0.5256
P_i,F'	-----

transmittance: 10 mm
τ_0.36	0.179
τ_0.37	0.505
τ_0.38	0.74
τ_0.39	0.86
τ_0.4	0.918
τ_0.42	0.96
τ_0.44	0.971
τ_0.46	0.975
τ_0.48	0.982
τ_0.5	0.985
τ_0.55	0.99
τ_0.6	0.994
τ_0.65	0.994
τ_0.7	0.997
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.998
τ₂	0.975

transmittance: 25 mm
τ_0.37	0.181
τ_0.38	0.471
τ_0.39	0.686
τ_0.4	0.807
τ_0.42	0.903
τ_0.44	0.93
τ_0.46	0.94
τ_0.48	0.957
τ_0.5	0.964
τ_0.55	0.975
τ_0.6	0.985
τ_0.65	0.985
τ_0.7	0.992
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.996
τ₂	0.94

Poisson coef.: 0.261
Rigidity: 357 Pa*10⁸
Young module: 899 Pa*10⁸
Knoop hardness: 490
Abrasion: 160

Climatic resistance: 1
Resistance to acids: 4

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	85