S-FSL 5 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.487489 n_e = 1.489147	V_d = 70.23 V_e = 70.04	n_F - n_C = 0.006940 n_F' - n_C' = 0.006983	Coloring: 0.28 - 0.31 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.17447043 C2 = 0.0140056154 C3 = 1.19272435 C4 = 0.00841855181 C5 = -0.0581790767 C6 = 129.599726

Refraction index
n _2.3254	-----
n _1.9701	1.467650
n _1.5296	1.473244
n _1.06	1.478587
n _t	1.479149
n _s	1.481382
n _r	1.484098
n _C	1.485343
n _C'	1.485688
n _0.6328	1.486009
n _D	1.487427
n _d	1.487489
n _e	1.489147
n _F	1.492284
n _F'	1.492672
n _g	1.495963
n _h	1.498983
n _i	1.504063
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8924
P_C,A'	0.3633
P_d,C	0.3091
P_e,C	0.5479
P_g,d	1.2208
P_g,F	0.5300
P_h,g	0.4350
P_i,g	1.1669
P_C',t	0.9421
P_e,C'	0.4982
P_F',e	0.5079
P_i,F'	1.6411

transmittance: 10 mm
τ_0.28	0.13
τ_0.29	0.43
τ_0.3	0.73
τ_0.31	0.89
τ_0.32	0.961
τ_0.33	0.984
τ_0.34	0.992
τ_0.35	0.995
τ_0.36	0.995
τ_0.37	0.998
τ_0.38	0.998
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	0.998
τ_1.4	0.982
τ_1.6	0.992
τ_1.8	0.985
τ₂	0.971
τ_2.2	0.88
τ_2.4	0.87
τ_2.3254	0.86
τ_1.9701	0.971
τ_1.5296	0.996
τ_1.06	0.997
τ_0.66	0.998
τ_0.62	0.998
τ_0.58	0.998
τ_0.54607	0.998
τ_0.4358	0.996
τ_0.4047	0.994
τ_0.365	0.959
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

Poisson coef.: 0.227
Rigidity: 254 Pa*10⁸
Young module: 623 Pa*10⁸
Knoop hardness: 520
Abrasion: 111

Climatic resistance: 1
Resistance to acids: 3
Phosphate resistance: 2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	90
100 ~ 300	95
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	t	-1.3
-20 ~ 0	t	-1.3
0 ~ 20	t	-1.3
20 ~ 40	t	-1.1
40 ~ 60	t	-1
60 ~ 80	t	-0.9
-40 ~ -20	C'	-1.2
-20 ~ 0	C'	-1.1
0 ~ 20	C'	-1.1
20 ~ 40	C'	-0.8
40 ~ 60	C'	-0.6
60 ~ 80	C'	-0.4
-40 ~ -20		-1.2
-20 ~ 0		-1.1
0 ~ 20		-1
20 ~ 40		-0.8
40 ~ 60		-0.6
60 ~ 80		-0.4
-40 ~ -20	D	-1.1
-20 ~ 0	D	-1
0 ~ 20	D	-0.9
20 ~ 40	D	-0.7
40 ~ 60	D	-0.5
60 ~ 80	D	-0.3
-40 ~ -20	e	-1.1
-20 ~ 0	e	-1
0 ~ 20	e	-0.8
20 ~ 40	e	-0.6
40 ~ 60	e	-0.4
60 ~ 80	e	-0.2
-40 ~ -20	F	-0.9
-20 ~ 0	F	-0.8
0 ~ 20	F	-0.6
20 ~ 40	F	-0.4
40 ~ 60	F	-0.2
60 ~ 80	F	-0.1
-40 ~ -20	g	-0.7
-20 ~ 0	g	-0.6
0 ~ 20	g	-0.4
20 ~ 40	g	-0.3
60 ~ 80	g	0.2
-40 ~ -20		2.5
20 ~ 40		3
60 ~ 80		3.1