S-FSL5Y - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.487490 n_e = 1.489144	V_d = 70.35 V_e = 70.16	n_F - n_C = 0.006929 n_F' - n_C' = 0.006971	Coloring: 0.27 - 0.30 mkm.

Type: Sellmeier
Spectral range: 0.326 - 2.325 mkm.
C1 = 0.977409944 C2 = 0.210950834 C3 = 1.37142848 C4 = 0.00557649364 C5 = 0.0177000313 C6 = 149.211443

Refraction index
n _2.3254	-----
n _1.9701	1.467687
n _1.5296	1.473247
n _1.06	1.478582
n _t	1.479145
n _s	1.481381
n _r	1.484100
n _C	1.485346
n _C'	1.485690
n _0.6328	1.486011
n _D	1.487428
n _d	1.487490
n _e	1.489144
n _F	1.492275
n _F'	1.492661
n _g	1.495945
n _h	1.498959
n _i	1.504044
n _0.3341	1.509465
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8948
P_C,A'	0.3641
P_d,C	0.3094
P_e,C	0.5482
P_g,d	1.2201
P_g,F	0.5296
P_h,g	0.4350
P_i,g	1.1688
P_C',t	0.9446
P_e,C'	0.4985
P_F',e	0.5075
P_i,F'	1.6426

transmittance: 10 mm
τ_0.28	0.19
τ_0.29	0.61
τ_0.3	0.86
τ_0.31	0.954
τ_0.32	0.984
τ_0.33	0.993
τ_0.34	0.997
τ_0.35	0.998
τ_0.36	0.998
τ_0.365	0.999
τ_0.37	0.999
τ_0.38	0.999
τ_0.39	0.999
τ_0.4	0.999
τ_0.42	0.999
τ_0.44	0.999
τ_0.46	0.999
τ_0.48	0.999
τ_0.5	0.999
τ_0.55	0.999
τ_0.6	0.999
τ_0.65	0.999
τ_0.7	0.999
τ_0.8	0.999
τ_0.9	0.999
τ₁	0.998
τ_1.2	0.997
τ_1.4	0.981
τ_1.6	0.991
τ_1.8	0.983
τ₂	0.968
τ_2.2	0.86
τ_2.4	0.85
τ_2.3254	0.83
τ_1.9701	0.94
τ_1.5296	0.998
τ_1.06	0.999
τ_0.66	0.998
τ_0.62	0.997
τ_0.58	0.997
τ_0.54607	0.997
τ_0.4358	0.995
τ_0.4047	0.995
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

Poisson coef.: 0.229
Rigidity: 253 Pa*10⁸
Young module: 622 Pa*10⁸
Knoop hardness: 530
Abrasion: 113

Climatic resistance: 2
Resistance to acids: 3
Phosphate resistance: 2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	89
100 ~ 300	97
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	t	-1.2
-20 ~ 0	t	-1.2
0 ~ 20	t	-1.2
20 ~ 40	t	-1.1
40 ~ 60	t	-1
60 ~ 80	t	-1
-40 ~ -20	C'	-1.2
-20 ~ 0	C'	-1.1
0 ~ 20	C'	-1
20 ~ 40	C'	-0.9
40 ~ 60	C'	-0.8
60 ~ 80	C'	-0.7
-40 ~ -20		-1.2
-20 ~ 0		-1.1
0 ~ 20		-1
20 ~ 40		-0.9
40 ~ 60		-0.8
60 ~ 80		-0.7
-40 ~ -20	D	-1.1
-20 ~ 0	D	-1
0 ~ 20	D	-0.9
20 ~ 40	D	-0.8
40 ~ 60	D	-0.7
60 ~ 80	D	-0.6
-40 ~ -20	e	-1.1
-20 ~ 0	e	-1
0 ~ 20	e	-0.8
20 ~ 40	e	-0.7
40 ~ 60	e	-0.6
60 ~ 80	e	-0.5
-40 ~ -20	F	-0.9
-20 ~ 0	F	-0.8
0 ~ 20	F	-0.7
20 ~ 40	F	-0.6
40 ~ 60	F	-0.5
60 ~ 80	F	-0.3
-40 ~ -20	g	-0.7
-20 ~ 0	g	-0.6
0 ~ 20	g	-0.5
20 ~ 40	g	-0.4
40 ~ 60	g	-0.3
60 ~ 80	g	-0.1
-40 ~ -20	i	-0.3
-20 ~ 0	i	-0.2
20 ~ 40	i	0.1
40 ~ 60	i	0.3
60 ~ 80	i	0.4
-40 ~ -20		3.3
20 ~ 40		3.6
60 ~ 80		3.8