F5 - Schott 2000

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.603420 n_e = 1.607182	V_d = 38.02 V_e = 37.76	n_F - n_C = 0.015866 n_F' - n_C' = 0.016077	Coloring: 0.36 - 0.32 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.3254 mkm.
C1 = 1.3104463 C2 = 0.19603426 C3 = 0.96612977 C4 = 0.00958633048 C5 = 0.0457627627 C6 = 115.011883

Refraction index
n _2.3254	1.569336
n _1.9701	1.574268
n _1.5296	1.579785
n _1.06	1.586363
n _t	1.587208
n _s	1.590931
n _r	1.596156
n _C	1.598745
n _C'	1.599479
n _0.6328	1.600168
n _D	1.603281
n _d	1.603420
n _e	1.607182
n _F	1.614612
n _F'	1.615557
n _g	1.623807
n _h	1.631756
n _i	1.646060
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7270
P_C,A'	0.3231
P_d,C	0.2946
P_e,C	0.5317
P_g,d	1.2848
P_g,F	0.5794
P_h,g	0.5009
P_i,g	1.4024
P_C',t	0.7733
P_e,C'	0.4854
P_F',e	0.5278
P_i,F'	1.9224

transmittance: 10 mm
τ_2.3254	0.86
τ_1.9701	0.971
τ_1.5296	0.996
τ_1.06	0.997
τ_0.7	0.998
τ_0.66	0.998
τ_0.62	0.998
τ_0.58	0.998
τ_0.54607	0.998
τ_0.5	0.998
τ_0.46	0.997
τ_0.4358	0.996
τ_0.42	0.995
τ_0.4047	0.994
τ_0.4	0.994
τ_0.39	0.993
τ_0.38	0.99
τ_0.37	0.98
τ_0.365	0.959
τ_0.35	0.86
τ_0.3341	0.59

transmittance: 25 mm
τ_2.3254	0.69
τ_1.9701	0.93
τ_1.5296	0.99
τ_1.06	0.992
τ_0.7	0.994
τ_0.66	0.995
τ_0.62	0.995
τ_0.58	0.996
τ_0.54607	0.995
τ_0.5	0.995
τ_0.46	0.992
τ_0.4358	0.99
τ_0.42	0.988
τ_0.4047	0.985
τ_0.4	0.984
τ_0.39	0.982
τ_0.38	0.975
τ_0.37	0.95
τ_0.365	0.9
τ_0.35	0.69
τ_0.3341	0.27

Density: 3.47 g/cm³
Poisson coef.: 0.22
Young module: 580 Pa*10⁸
Knoop hardness: 450
Optical stress coef.: 2.92 1/Pa*10¹²
Abrasion: 3

Climatic resistance: 1
Staining: 0
Resistance to acids: 1
Resistance to alkalis: 2.3
Phosphate resistance: 2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	80
20 ~ 300	89

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		0.4
20 ~ 40		1.6
60 ~ 80		2
-40 ~ -20	e	1.8
20 ~ 40	e	3.2
60 ~ 80	e	3.7
-40 ~ -20	g	3.3
20 ~ 40	g	4.8
60 ~ 80	g	5.4

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		2.5
20 ~ 40		3
60 ~ 80		3.1
-40 ~ -20	e	4
20 ~ 40	e	4.6
60 ~ 80	e	4.8
-40 ~ -20	g	5.5
20 ~ 40	g	6.2
60 ~ 80	g	6.5