SF10 - Schott 2000

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.728250 n_e = 1.734301	V_d = 28.41 V_e = 28.18	n_F - n_C = 0.025633 n_F' - n_C' = 0.026050	Coloring: 0.41 - 0.38 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.3254 mkm.
C1 = 1.61625977 C2 = 0.259229334 C3 = 1.07762317 C4 = 0.0127534559 C5 = 0.0581983954 C6 = 116.60768

Refraction index
n _2.3254	1.682179
n _1.9701	1.687501
n _1.5296	1.693781
n _1.06	1.702269
n _t	1.703454
n _s	1.708865
n _r	1.716812
n _C	1.720847
n _C'	1.722000
n _0.6328	1.723086
n _D	1.728028
n _d	1.728250
n _e	1.734301
n _F	1.746480
n _F'	1.748051
n _g	1.761977
n _h	1.775788
n _i	1.801776
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.6785
P_C,A'	0.3095
P_d,C	0.2887
P_e,C	0.5248
P_g,d	1.3157
P_g,F	0.6045
P_h,g	0.5387
P_i,g	1.5526
P_C',t	0.7235
P_e,C'	0.4798
P_F',e	0.5363
P_i,F'	2.0959

transmittance: 10 mm
τ_2.3254	0.92
τ_1.9701	0.98
τ_1.5296	0.999
τ_1.06	0.999
τ_0.7	0.999
τ_0.66	0.998
τ_0.62	0.998
τ_0.58	0.998
τ_0.54607	0.998
τ_0.5	0.996
τ_0.46	0.99
τ_0.4358	0.981
τ_0.42	0.963
τ_0.4047	0.91
τ_0.4	0.87
τ_0.39	0.69
τ_0.38	0.35

transmittance: 25 mm
τ_2.3254	0.81
τ_1.9701	0.95
τ_1.5296	0.997
τ_1.06	0.997
τ_0.7	0.997
τ_0.66	0.996
τ_0.62	0.996
τ_0.58	0.995
τ_0.54607	0.995
τ_0.5	0.99
τ_0.46	0.975
τ_0.4358	0.953
τ_0.42	0.91
τ_0.4047	0.78
τ_0.4	0.7
τ_0.39	0.4
τ_0.38	0.07

Density: 4.28 g/cm³
Poisson coef.: 0.232
Young module: 640 Pa*10⁸
Knoop hardness: 430
Optical stress coef.: 1.95 1/Pa*10¹²
Abrasion: 1

Climatic resistance: 1
Staining: 0
Resistance to acids: 1
Resistance to alkalis: 1.2
Phosphate resistance: 2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	75
20 ~ 300	84

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		2.5
20 ~ 40		3.8
60 ~ 80		4.4
-40 ~ -20	e	4.9
20 ~ 40	e	6.6
60 ~ 80	e	7.4
-40 ~ -20	g	7.9
20 ~ 40	g	10
60 ~ 80	g	11.1

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		4.8
20 ~ 40		5.3
60 ~ 80		5.6
-40 ~ -20	e	7.3
20 ~ 40	e	8.1
60 ~ 80	e	8.6
-40 ~ -20	g	10.3
20 ~ 40	g	11.6
60 ~ 80	g	12.4