K10 - Schott 2000

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.501370 n_e = 1.503488	V_d = 56.40 V_e = 56.15	n_F - n_C = 0.008888 n_F' - n_C' = 0.008966	Coloring: 0.35 - 0.31 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.3254 mkm.
C1 = 1.15687082 C2 = 0.0642625444 C3 = 0.872376139 C4 = 0.00809424251 C5 = 0.0386051284 C6 = 104.74773

Refraction index
n _2.3254	1.475073
n _1.9701	1.480077
n _1.5296	1.485360
n _1.06	1.490756
n _t	1.491365
n _s	1.493885
n _r	1.497134
n _C	1.498671
n _C'	1.499101
n _0.6328	1.499502
n _D	1.501291
n _d	1.501370
n _e	1.503488
n _F	1.507559
n _F'	1.508068
n _g	1.512425
n _h	1.516493
n _i	1.523504
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8219
P_C,A'	0.3471
P_d,C	0.3036
P_e,C	0.5419
P_g,d	1.2437
P_g,F	0.5474
P_h,g	0.4576
P_i,g	1.2464
P_C',t	0.8703
P_e,C'	0.4935
P_F',e	0.5152
P_i,F'	1.7367

transmittance: 10 mm
τ_2.3254	0.83
τ_1.9701	0.94
τ_1.5296	0.998
τ_1.06	0.999
τ_0.7	0.999
τ_0.66	0.998
τ_0.62	0.997
τ_0.58	0.997
τ_0.54607	0.997
τ_0.5	0.996
τ_0.46	0.996
τ_0.4358	0.995
τ_0.42	0.995
τ_0.4047	0.995
τ_0.4	0.994
τ_0.39	0.993
τ_0.38	0.989
τ_0.37	0.986
τ_0.365	0.983
τ_0.35	0.94
τ_0.3341	0.66

transmittance: 25 mm
τ_2.3254	0.63
τ_1.9701	0.85
τ_1.5296	0.995
τ_1.06	0.997
τ_0.7	0.997
τ_0.66	0.994
τ_0.62	0.993
τ_0.58	0.993
τ_0.54607	0.992
τ_0.5	0.991
τ_0.46	0.99
τ_0.4358	0.988
τ_0.42	0.988
τ_0.4047	0.987
τ_0.4	0.984
τ_0.39	0.982
τ_0.38	0.973
τ_0.37	0.966
τ_0.365	0.958
τ_0.35	0.86
τ_0.3341	0.35

Density: 2.52 g/cm³
Poisson coef.: 0.19
Young module: 650 Pa*10⁸
Knoop hardness: 470
Optical stress coef.: 3.12 1/Pa*10¹²
Abrasion: 4

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

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	65
20 ~ 300	74

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		1.3
20 ~ 40		2.3
60 ~ 80		2.8
-40 ~ -20	e	1.8
20 ~ 40	e	2.9
60 ~ 80	e	3.4
-40 ~ -20	g	2.4
20 ~ 40	g	3.6
60 ~ 80	g	4.2

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		3.3
20 ~ 40		3.6
60 ~ 80		3.8
-40 ~ -20	e	3.9
20 ~ 40	e	4.2
60 ~ 80	e	4.5
-40 ~ -20	g	4.5
20 ~ 40	g	4.9
60 ~ 80	g	5.2