LLF6 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.531721 n_e = 1.534308	V_d = 48.87 V_e = 48.59	n_F - n_C = 0.010879 n_F' - n_C' = 0.010995	Coloring: 0.31 - 0.33 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.3027021 C2 = -0.0073110904 C3 = 0.015656462 C4 = -0.000064404698 C5 = 0.000054437505 C6 = -0.0000019865438

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.520000
n _s	1.522816
n _r	1.526618
n _C	1.528457
n _C'	1.528974
n _0.6328	1.529458
n _D	1.531625
n _d	1.531721
n _e	1.534308
n _F	1.539337
n _F'	1.539969
n _g	1.545434
n _h	1.550597
n _i	1.559590
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7773
P_C,A'	0.3371
P_d,C	0.3000
P_e,C	0.5378
P_g,d	1.2604
P_g,F	0.5604
P_h,g	0.4745
P_i,g	1.3010
P_C',t	0.8248
P_e,C'	0.4903
P_F',e	0.5203
P_i,F'	1.8034

transmittance: 10 mm
τ_0.31	0.042
τ_0.32	0.6
τ_0.33	0.833
τ_0.34	0.933
τ_0.35	0.971
τ_0.36	0.985
τ_0.37	0.988
τ_0.38	0.988
τ_0.39	0.995
τ_0.4	0.995
τ_0.42	0.992
τ_0.44	0.992
τ_0.46	0.992
τ_0.48	0.995
τ_0.5	0.995
τ_0.55	0.997
τ_0.6	0.997
τ_0.65	0.997
τ_0.7	0.998
τ_0.8	0.998
τ_1.06	0.998
τ_1.5	0.998
τ₂	0.946

transmittance: 25 mm
τ_0.32	0.279
τ_0.33	0.633
τ_0.34	0.842
τ_0.35	0.93
τ_0.36	0.964
τ_0.37	0.971
τ_0.38	0.971
τ_0.39	0.989
τ_0.4	0.989
τ_0.42	0.982
τ_0.44	0.982
τ_0.46	0.982
τ_0.48	0.989
τ_0.5	0.989
τ_0.55	0.992
τ_0.6	0.992
τ_0.65	0.992
τ_0.7	0.996
τ_0.8	0.996
τ_1.06	0.996
τ_1.5	0.996
τ₂	0.87

Poisson coef.: 0.212
Rigidity: 259 Pa*10⁸
Young module: 628 Pa*10⁸
Knoop hardness: 387
Abrasion: 110

Climatic resistance: 1
Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	101