S-LAH54 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.815542 n_e = 1.819914	V_d = 44.36 V_e = 44.11	n_F - n_C = 0.018384 n_F' - n_C' = 0.018585	Coloring: 0.33 - 0.40 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 3.2126997 C2 = -0.01535137 C3 = 0.028440374 C4 = 0.00079180171 C5 = -0.000017032771 C6 = 0.0000026219094

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.795915
n _s	1.800607
n _r	1.806957
n _C	1.810042
n _C'	1.810911
n _0.6328	1.811725
n _D	1.815380
n _d	1.815542
n _e	1.819914
n _F	1.828426
n _F'	1.829497
n _g	1.838744
n _h	1.847476
n _i	1.862749
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7684
P_C,A'	0.3342
P_d,C	0.2991
P_e,C	0.5370
P_g,d	1.2620
P_g,F	0.5612
P_h,g	0.4749
P_i,g	1.3057
P_C',t	0.8156
P_e,C'	0.4897
P_F',e	0.5212
P_i,F'	1.8087

transmittance: 10 mm
τ_0.39	0.926
τ_0.4	0.948
τ_0.42	0.969
τ_0.44	0.977
τ_0.46	0.984
τ_0.48	0.989
τ_0.5	0.993
τ_0.55	0.996
τ_0.6	0.995
τ_0.65	0.995
τ_0.7	0.997
τ_0.8	0.997
τ_0.9	0.997

Poisson coef.: 0.292
Rigidity: 480 Pa*10⁸
Knoop hardness: 680
Abrasion: 61

Climatic resistance: 1
Resistance to acids: 4.2
Phosphate resistance: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	59
100 ~ 300	71

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	C'	3.9
-20 ~ 0	C'	4
0 ~ 20	C'	4.1
20 ~ 40	C'	4.3
40 ~ 60	C'	4.6
60 ~ 80	C'	4.9
-40 ~ -20	D	4.2
-20 ~ 0	D	4.2
0 ~ 20	D	4.4
20 ~ 40	D	4.6
40 ~ 60	D	4.9
60 ~ 80	D	5.2
-40 ~ -20	e	4.4
-20 ~ 0	e	4.5
0 ~ 20	e	4.7
20 ~ 40	e	4.9
40 ~ 60	e	5.2
60 ~ 80	e	5.5
-40 ~ -20	F	4.9
-20 ~ 0	F	5.1
0 ~ 20	F	5.3
20 ~ 40	F	5.6
40 ~ 60	F	5.9
60 ~ 80	F	6.2
-40 ~ -20	g	5.5
-20 ~ 0	g	5.7
0 ~ 20	g	5.9
20 ~ 40	g	6.3
40 ~ 60	g	6.6
60 ~ 80	g	7