LLF2 - Sumita

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.540721 n_e = 1.543442	V_d = 47.23 V_e = 46.95	n_F - n_C = 0.011448 n_F' - n_C' = 0.011574	Coloring: 0.31 - 0.33 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.3303451 C2 = -0.0088935015 C3 = 0.014877806 C4 = 0.00042669633 C5 = -0.00001008843 C6 = 0.0000016726442

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.528419
n _s	1.531393
n _r	1.535372
n _C	1.537296
n _C'	1.537838
n _0.6328	1.538345
n _D	1.540620
n _d	1.540721
n _e	1.543442
n _F	1.548744
n _F'	1.549412
n _g	1.555190
n _h	1.560669
n _i	1.570319
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7754
P_C,A'	0.3351
P_d,C	0.2991
P_e,C	0.5368
P_g,d	1.2639
P_g,F	0.5630
P_h,g	0.4785
P_i,g	1.3215
P_C',t	0.8227
P_e,C'	0.4895
P_F',e	0.5214
P_i,F'	1.8262

transmittance: 10 mm
τ_0.31	0.196
τ_0.32	0.663
τ_0.33	0.884
τ_0.34	0.953
τ_0.35	0.985
τ_0.36	0.988
τ_0.37	0.994
τ_0.38	0.995
τ_0.39	0.997
τ_0.4	0.997
τ_0.42	0.997
τ_0.44	0.997
τ_0.46	0.997
τ_0.48	0.997
τ_0.5	0.997
τ_0.55	0.998
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	0.995
τ₂	0.943

transmittance: 25 mm
τ_0.31	0.017
τ_0.32	0.357
τ_0.33	0.736
τ_0.34	0.887
τ_0.35	0.964
τ_0.36	0.971
τ_0.37	0.985
τ_0.38	0.989
τ_0.39	0.992
τ_0.4	0.992
τ_0.42	0.992
τ_0.44	0.992
τ_0.46	0.992
τ_0.48	0.992
τ_0.5	0.992
τ_0.55	0.996
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	0.989
τ₂	0.864

Poisson coef.: 0.207
Rigidity: 252 Pa*10⁸
Young module: 608 Pa*10⁸
Knoop hardness: 459
Abrasion: 120

Climatic resistance: 2
Resistance to acids: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
100 ~ 300	93