S-LAM60 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.743197 n_e = 1.746784	V_d = 49.33 V_e = 49.09	n_F - n_C = 0.015062 n_F' - n_C' = 0.015209	Coloring: 0.33 - 0.38 mkm.

Type: Sellmeier
Spectral range: 0.3650146 - 2.325 mkm.
C1 = 1.60673056 C2 = 0.36641564 C3 = 1.31761804 C4 = 0.0077504614 C5 = 0.0289967611 C6 = 93.0720709

Refraction index
n _2.3254	-----
n _1.9701	1.709321
n _1.5296	1.717296
n _1.06	1.725662
n _t	1.726634
n _s	1.730711
n _r	1.736081
n _C	1.738652
n _C'	1.739374
n _0.6328	1.740048
n _D	1.743064
n _d	1.743197
n _e	1.746784
n _F	1.753715
n _F'	1.754584
n _g	1.762047
n _h	1.769039
n _i	1.781129
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7978
P_C,A'	0.3414
P_d,C	0.3017
P_e,C	0.5398
P_g,d	1.2513
P_g,F	0.5530
P_h,g	0.4642
P_i,g	1.2668
P_C',t	0.8457
P_e,C'	0.4919
P_F',e	0.5178
P_i,F'	1.7623

transmittance: 10 mm
τ_0.33	0.03
τ_0.34	0.29
τ_0.35	0.6
τ_0.36	0.79
τ_0.37	0.89
τ_0.38	0.937
τ_0.39	0.961
τ_0.4	0.974
τ_0.42	0.985
τ_0.44	0.99
τ_0.46	0.993
τ_0.48	0.995
τ_0.5	0.997
τ_0.55	0.998
τ_0.6	0.997
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	0.991
τ_1.6	0.991
τ_1.8	0.98
τ₂	0.953
τ_2.2	0.87
τ_2.4	0.62

Poisson coef.: 0.294
Rigidity: 438 Pa*10⁸
Young module: 1132 Pa*10⁸
Knoop hardness: 730
Abrasion: 71

Climatic resistance: 2
Resistance to acids: 52
Phosphate resistance: 2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	54
100 ~ 300	66

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	5.3
-20 ~ 0	t	5.4
0 ~ 20	t	5.5
20 ~ 40	t	5.6
40 ~ 60	t	5.7
60 ~ 80	t	5.9
-40 ~ -20	C'	5.7
-20 ~ 0	C'	5.8
0 ~ 20	C'	6
20 ~ 40	C'	6.1
40 ~ 60	C'	6.3
60 ~ 80	C'	6.5
-40 ~ -20		5.7
-20 ~ 0		5.9
0 ~ 20		6
20 ~ 40		6.2
40 ~ 60		6.3
60 ~ 80		6.5
-40 ~ -20	D	5.9
-20 ~ 0	D	6.1
0 ~ 20	D	6.2
20 ~ 40	D	6.4
40 ~ 60	D	6.5
60 ~ 80	D	6.6
-40 ~ -20	e	6.1
-20 ~ 0	e	6.3
0 ~ 20	e	6.4
20 ~ 40	e	6.6
40 ~ 60	e	6.8
60 ~ 80	e	7
-40 ~ -20	F	6.6
-20 ~ 0	F	6.8
0 ~ 20	F	7
20 ~ 40	F	7.2
40 ~ 60	F	7.4
60 ~ 80	F	7.5
-40 ~ -20	g	7.1
-20 ~ 0	g	7.3
0 ~ 20	g	7.5
20 ~ 40	g	7.7
40 ~ 60	g	7.9
60 ~ 80	g	8.1