S-NSL 3 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.518228 n_e = 1.520325	V_d = 58.90 V_e = 58.62	n_F - n_C = 0.008798 n_F' - n_C' = 0.008874	Coloring: 0.31 - 0.34 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 0.882514764 C2 = 0.389271907 C3 = 1.10693448 C4 = 0.00464504582 C5 = 0.0200551397 C6 = 136.234339

Refraction index
n _2.3254	-----
n _1.9701	1.497466
n _1.5296	1.502519
n _1.06	1.507753
n _t	1.508349
n _s	1.510825
n _r	1.514034
n _C	1.515555
n _C'	1.515981
n _0.6328	1.516378
n _D	1.518150
n _d	1.518228
n _e	1.520325
n _F	1.524353
n _F'	1.524856
n _g	1.529154
n _h	1.533150
n _i	1.539986
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8190
P_C,A'	0.3468
P_d,C	0.3038
P_e,C	0.5421
P_g,d	1.2418
P_g,F	0.5456
P_h,g	0.4541
P_i,g	1.2311
P_C',t	0.8674
P_e,C'	0.4938
P_F',e	0.5149
P_i,F'	1.7197

transmittance: 10 mm
τ_0.32	0.15
τ_0.33	0.53
τ_0.34	0.8
τ_0.35	0.924
τ_0.36	0.968
τ_0.37	0.984
τ_0.38	0.99
τ_0.39	0.995
τ_0.4	0.997
τ_0.42	0.997
τ_0.44	0.997
τ_0.46	0.997
τ_0.48	0.998
τ_0.5	0.998
τ_0.55	0.999
τ_0.6	0.999
τ_0.65	0.998
τ_0.7	0.998
τ_0.8	0.998
τ_0.9	0.998
τ₁	0.997
τ_1.2	0.997
τ_1.4	0.992
τ_1.6	0.991
τ_1.8	0.968
τ₂	0.93
τ_2.2	0.86
τ_2.4	0.81

Poisson coef.: 0.217
Rigidity: 288 Pa*10⁸
Young module: 700 Pa*10⁸
Knoop hardness: 510
Abrasion: 111

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

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	90
100 ~ 300	110

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	0.3
-20 ~ 0	t	0.3
0 ~ 20	t	0.3
20 ~ 40	t	0.3
40 ~ 60	t	0.3
60 ~ 80	t	0.3
-40 ~ -20	C'	0.6
-20 ~ 0	C'	0.6
0 ~ 20	C'	0.6
20 ~ 40	C'	0.6
40 ~ 60	C'	0.6
60 ~ 80	C'	0.6
-40 ~ -20		0.6
-20 ~ 0		0.6
0 ~ 20		0.6
20 ~ 40		0.6
40 ~ 60		0.7
60 ~ 80		0.7
-40 ~ -20	D	0.7
-20 ~ 0	D	0.7
0 ~ 20	D	0.7
20 ~ 40	D	0.7
40 ~ 60	D	0.8
60 ~ 80	D	0.8
-40 ~ -20	e	0.8
-20 ~ 0	e	0.8
0 ~ 20	e	0.9
20 ~ 40	e	0.9
40 ~ 60	e	0.9
60 ~ 80	e	1
-40 ~ -20	F	1.1
-20 ~ 0	F	1.1
0 ~ 20	F	1.2
20 ~ 40	F	1.2
40 ~ 60	F	1.3
60 ~ 80	F	1.3
-40 ~ -20	g	1.4
-20 ~ 0	g	1.4
0 ~ 20	g	1.5
20 ~ 40	g	1.6
40 ~ 60	g	1.6
60 ~ 80	g	1.7