S-APL 1 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.517277 n_e = 1.519052	V_d = 69.56 V_e = 69.33	n_F - n_C = 0.007436 n_F' - n_C' = 0.007486	Coloring: 0.32 - 0.36 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.2762403 C2 = -0.0096874647 C3 = 0.0092330378 C4 = 0.00038940853 C5 = -0.000038018733 C6 = 0.0000020693225

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.508507
n _s	1.510817
n _r	1.513668
n _C	1.514988
n _C'	1.515354
n _0.6328	1.515696
n _D	1.517210
n _d	1.517277
n _e	1.519052
n _F	1.522424
n _F'	1.522841
n _g	1.526382
n _h	1.529634
n _i	1.535147
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8714
P_C,A'	0.3584
P_d,C	0.3078
P_e,C	0.5466
P_g,d	1.2244
P_g,F	0.5322
P_h,g	0.4374
P_i,g	1.1787
P_C',t	0.9207
P_e,C'	0.4973
P_F',e	0.5094
P_i,F'	1.6548

transmittance: 10 mm
τ_0.37	0.901
τ_0.38	0.934
τ_0.39	0.954
τ_0.4	0.964
τ_0.42	0.969
τ_0.44	0.969
τ_0.46	0.97
τ_0.48	0.974
τ_0.5	0.981
τ_0.55	0.992
τ_0.6	0.996
τ_0.65	0.994
τ_0.7	0.996
τ_0.8	0.996
τ_0.9	0.993

Poisson coef.: 0.239
Rigidity: 253 Pa*10⁸
Young module: 627 Pa*10⁸
Knoop hardness: 380
Abrasion: 264

Climatic resistance: 2
Resistance to acids: 1
Phosphate resistance: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	96
100 ~ 300	115

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	-1.3
-20 ~ 0	t	-1.4
0 ~ 20	t	-1.4
20 ~ 40	t	-1.3
40 ~ 60	t	-1.3
60 ~ 80	t	-1.3
-40 ~ -20	C'	-1
-20 ~ 0	C'	-1.1
0 ~ 20	C'	-1.1
20 ~ 40	C'	-1.1
40 ~ 60	C'	-1
60 ~ 80	C'	-1
-40 ~ -20		-1
-20 ~ 0		-1.1
0 ~ 20		-1.1
20 ~ 40		-1
40 ~ 60		-1
60 ~ 80		-1
-40 ~ -20	D	-0.8
-20 ~ 0	D	-0.9
0 ~ 20	D	-0.9
20 ~ 40	D	-0.9
40 ~ 60	D	-0.9
60 ~ 80	D	-0.9
-40 ~ -20	e	-0.7
-20 ~ 0	e	-0.9
0 ~ 20	e	-0.9
20 ~ 40	e	-0.9
40 ~ 60	e	-0.9
60 ~ 80	e	-0.8
-40 ~ -20	F	-0.4
-20 ~ 0	F	-0.6
0 ~ 20	F	-0.6
20 ~ 40	F	-0.7
40 ~ 60	F	-0.6
60 ~ 80	F	-0.6
-40 ~ -20	g	-0.3
-20 ~ 0	g	-0.4
0 ~ 20	g	-0.4
20 ~ 40	g	-0.4
40 ~ 60	g	-0.4
60 ~ 80	g	-0.4