PBL6Y - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.531717 n_e = 1.534300	V_d = 48.95 V_e = 48.67	n_F - n_C = 0.010861 n_F' - n_C' = 0.010976	Coloring: 0.30 - 0.32 mkm.

Type: Sellmeier
Spectral range: 0.326 - 2.325 mkm.
C1 = 1.22310794 C2 = 0.0811217929 C3 = 0.321400939 C4 = 0.00897805333 C5 = 0.0445756957 C6 = 40.5962247

Refraction index
n _2.3254	-----
n _1.9701	1.507989
n _1.5296	1.513558
n _1.06	1.519303
n _t	1.519976
n _s	1.522824
n _r	1.526625
n _C	1.528459
n _C'	1.528974
n _0.6328	1.529457
n _D	1.531621
n _d	1.531717
n _e	1.534300
n _F	1.539320
n _F'	1.539951
n _g	1.545403
n _h	1.550555
n _i	1.559593
n _0.3341	1.569795
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7810
P_C,A'	0.3369
P_d,C	0.2999
P_e,C	0.5377
P_g,d	1.2600
P_g,F	0.5600
P_h,g	0.4744
P_i,g	1.3065
P_C',t	0.8284
P_e,C'	0.4903
P_F',e	0.5203
P_i,F'	1.8084

transmittance: 10 mm
τ_0.31	0.33
τ_0.32	0.79
τ_0.33	0.947
τ_0.34	0.985
τ_0.35	0.994
τ_0.36	0.997
τ_0.365	0.998
τ_0.37	0.998
τ_0.38	0.998
τ_0.39	0.998
τ_0.4	0.999
τ_0.42	0.999
τ_0.44	0.999
τ_0.46	0.999
τ_0.48	0.999
τ_0.5	0.999
τ_0.55	0.999
τ_0.6	0.999
τ_0.65	0.999
τ_0.7	0.999
τ_0.8	0.999
τ_0.9	0.999
τ₁	0.998
τ_1.2	0.997
τ_1.4	0.996
τ_1.6	0.993
τ_1.8	0.973
τ₂	0.933
τ_2.2	0.86
τ_2.4	0.81

Poisson coef.: 0.205
Rigidity: 251 Pa*10⁸
Young module: 605 Pa*10⁸
Knoop hardness: 450
Abrasion: 113

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	83
100 ~ 300	90

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	1.9
-20 ~ 0	t	1.9
0 ~ 20	t	2
20 ~ 40	t	2.1
40 ~ 60	t	2.1
60 ~ 80	t	2.2
-40 ~ -20	C'	2.3
-20 ~ 0	C'	2.4
0 ~ 20	C'	2.5
20 ~ 40	C'	2.6
40 ~ 60	C'	2.7
60 ~ 80	C'	2.8
-40 ~ -20		2.3
-20 ~ 0		2.4
0 ~ 20		2.5
20 ~ 40		2.6
40 ~ 60		2.7
60 ~ 80		2.8
-40 ~ -20	D	2.4
-20 ~ 0	D	2.5
0 ~ 20	D	2.6
20 ~ 40	D	2.7
40 ~ 60	D	2.9
60 ~ 80	D	3
-40 ~ -20	e	2.6
-20 ~ 0	e	2.7
0 ~ 20	e	2.8
20 ~ 40	e	2.9
40 ~ 60	e	3.1
60 ~ 80	e	3.2
-40 ~ -20	F	3
-20 ~ 0	F	3.1
0 ~ 20	F	3.3
20 ~ 40	F	3.4
40 ~ 60	F	3.5
60 ~ 80	F	3.7
-40 ~ -20	g	3.4
-20 ~ 0	g	3.6
0 ~ 20	g	3.7
20 ~ 40	g	3.9
40 ~ 60	g	4
60 ~ 80	g	4.2
-40 ~ -20	i	4.7
-20 ~ 0	i	4.9
0 ~ 20	i	5.1
20 ~ 40	i	5.3
40 ~ 60	i	5.6
60 ~ 80	i	5.8