S-NSL 2 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.516015 n_e = 1.518178	V_d = 56.85 V_e = 56.58	n_F - n_C = 0.009075 n_F' - n_C' = 0.009157	Coloring: 0.32 - 0.35 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 0.951239368 C2 = 0.313094652 C3 = 1.70928507 C4 = 0.00513091895 C5 = 0.0231960516 C6 = 201.539573

Refraction index
n _2.3254	-----
n _1.9701	1.494627
n _1.5296	1.499827
n _1.06	1.505229
n _t	1.505844
n _s	1.508395
n _r	1.511696
n _C	1.513262
n _C'	1.513700
n _0.6328	1.514110
n _D	1.515935
n _d	1.516015
n _e	1.518178
n _F	1.522338
n _F'	1.522858
n _g	1.527311
n _h	1.531465
n _i	1.538604
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8174
P_C,A'	0.3460
P_d,C	0.3033
P_e,C	0.5415
P_g,d	1.2446
P_g,F	0.5480
P_h,g	0.4576
P_i,g	1.2442
P_C',t	0.8657
P_e,C'	0.4933
P_F',e	0.5156
P_i,F'	1.7350

transmittance: 10 mm
τ_0.32	0.01
τ_0.33	0.2
τ_0.34	0.6
τ_0.35	0.84
τ_0.36	0.936
τ_0.37	0.97
τ_0.38	0.984
τ_0.39	0.991
τ_0.4	0.995
τ_0.42	0.996
τ_0.44	0.996
τ_0.46	0.997
τ_0.48	0.997
τ_0.5	0.998
τ_0.55	0.999
τ_0.6	0.998
τ_0.65	0.998
τ_0.7	0.998
τ_0.8	0.999
τ_0.9	0.998
τ₁	0.998
τ_2.5	0.71
τ_2.3254	0.84
τ_1.9701	0.954
τ_1.5296	0.991
τ_1.06	0.998
τ_0.66	0.996
τ_0.62	0.996
τ_0.58	0.997
τ_0.54607	0.997
τ_0.4358	0.983
τ_0.4047	0.959
τ_0.365	0.44

transmittance: 25 mm
τ_2.5	0.42
τ_2.3254	0.64
τ_1.9701	0.89
τ_1.5296	0.977
τ_1.06	0.994
τ_0.7	0.994
τ_0.66	0.991
τ_0.62	0.99
τ_0.58	0.992
τ_0.54607	0.992
τ_0.5	0.985
τ_0.46	0.971
τ_0.4358	0.959
τ_0.42	0.94
τ_0.4047	0.9
τ_0.4	0.87
τ_0.39	0.77
τ_0.38	0.58
τ_0.37	0.28
τ_0.365	0.13

Poisson coef.: 0.216
Rigidity: 292 Pa*10⁸
Young module: 710 Pa*10⁸
Knoop hardness: 510
Abrasion: 101

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	88
100 ~ 300	108
20 ~ 300	83

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		0.1
20 ~ 40		0.9
60 ~ 80		1.3
-40 ~ -20	e	0.9
20 ~ 40	e	1.9
60 ~ 80	e	2.5
-40 ~ -20	g	1.9
20 ~ 40	g	3
60 ~ 80	g	3.8

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		2.2
20 ~ 40		2.2
60 ~ 80		2.4
-40 ~ -20	e	3.1
20 ~ 40	e	3.3
60 ~ 80	e	3.6
-40 ~ -20	g	4.1
20 ~ 40	g	4.5
60 ~ 80	g	4.9