S-LAL11 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.658295 n_e = 1.661033	V_d = 57.33 V_e = 57.06	n_F - n_C = 0.011482 n_F' - n_C' = 0.011584	Coloring: 0.29 - 0.36 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.7037498 C2 = -0.011741892 C3 = 0.0158996 C4 = 0.00061265364 C5 = -0.000046676845 C6 = 0.0000026544952

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.645503
n _s	1.648687
n _r	1.652836
n _C	1.654812
n _C'	1.655366
n _0.6328	1.655883
n _D	1.658193
n _d	1.658295
n _e	1.661033
n _F	1.666294
n _F'	1.666950
n _g	1.672552
n _h	1.677747
n _i	1.686629
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8107
P_C,A'	0.3447
P_d,C	0.3033
P_e,C	0.5418
P_g,d	1.2416
P_g,F	0.5449
P_h,g	0.4524
P_i,g	1.2260
P_C',t	0.8589
P_e,C'	0.4935
P_F',e	0.5152
P_i,F'	1.7139

transmittance: 10 mm
τ_0.36	0.92
τ_0.37	0.951
τ_0.38	0.969
τ_0.39	0.978
τ_0.4	0.984
τ_0.42	0.989
τ_0.44	0.99
τ_0.46	0.992
τ_0.48	0.995
τ_0.5	0.996
τ_0.55	0.998
τ_0.6	0.997
τ_0.65	0.997
τ_0.7	0.998

Poisson coef.: 0.28
Rigidity: 348 Pa*10⁸
Young module: 891 Pa*10⁸
Knoop hardness: 560
Abrasion: 170

Climatic resistance: 4
Resistance to acids: 53
Phosphate resistance: 4.2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	73
100 ~ 300	84

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	1.2
-20 ~ 0	t	1.3
0 ~ 20	t	1.4
20 ~ 40	t	1.5
40 ~ 60	t	1.6
60 ~ 80	t	1.7
-40 ~ -20	C'	1.7
-20 ~ 0	C'	1.8
0 ~ 20	C'	1.9
20 ~ 40	C'	2
40 ~ 60	C'	2.1
60 ~ 80	C'	2.2
-40 ~ -20		1.8
-20 ~ 0		1.9
0 ~ 20		2
20 ~ 40		2.1
40 ~ 60		2.2
60 ~ 80		2.2
-40 ~ -20	D	2
-20 ~ 0	D	2.1
0 ~ 20	D	2.2
20 ~ 40	D	2.3
40 ~ 60	D	2.4
60 ~ 80	D	2.4
-40 ~ -20	e	2.1
-20 ~ 0	e	2.2
0 ~ 20	e	2.4
20 ~ 40	e	2.5
40 ~ 60	e	2.6
60 ~ 80	e	2.6
-40 ~ -20	F	2.6
-20 ~ 0	F	2.7
0 ~ 20	F	2.8
20 ~ 40	F	2.9
40 ~ 60	F	3.1
60 ~ 80	F	3.2
-40 ~ -20	g	2.9
-20 ~ 0	g	3.1
0 ~ 20	g	3.3
20 ~ 40	g	3.4
40 ~ 60	g	3.6
60 ~ 80	g	3.6