PBL1Y - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.548141 n_e = 1.550983	V_d = 45.82 V_e = 45.55	n_F - n_C = 0.011960 n_F' - n_C' = 0.012096	Coloring: 0.31 - 0.33 mkm.

Type: Sellmeier
Spectral range: 0.326 - 2.325 mkm.
C1 = 1.25391428 C2 = 0.0958706198 C3 = 0.260220562 C4 = 0.00938952878 C5 = 0.0457002177 C6 = 33.2679549

Refraction index
n _2.3254	-----
n _1.9701	1.523022
n _1.5296	1.528745
n _1.06	1.534705
n _t	1.535416
n _s	1.538455
n _r	1.542569
n _C	1.544570
n _C'	1.545134
n _0.6328	1.545662
n _D	1.548035
n _d	1.548141
n _e	1.550983
n _F	1.556530
n _F'	1.557230
n _g	1.563287
n _h	1.569040
n _i	1.579195
n _0.3341	1.590765
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7653
P_C,A'	0.3330
P_d,C	0.2985
P_e,C	0.5361
P_g,d	1.2664
P_g,F	0.5649
P_h,g	0.4809
P_i,g	1.3299
P_C',t	0.8125
P_e,C'	0.4890
P_F',e	0.5222
P_i,F'	1.8364

transmittance: 10 mm
τ_0.31	0.2
τ_0.32	0.7
τ_0.33	0.925
τ_0.34	0.979
τ_0.35	0.993
τ_0.36	0.996
τ_0.365	0.997
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	0.994
τ_1.8	0.978
τ₂	0.948
τ_2.2	0.89
τ_2.4	0.85

Poisson coef.: 0.212
Rigidity: 254 Pa*10⁸
Young module: 616 Pa*10⁸
Knoop hardness: 430
Abrasion: 106

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	84
100 ~ 300	97

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	1.9
20 ~ 40	t	2
40 ~ 60	t	2
60 ~ 80	t	2.1
-40 ~ -20	C'	2.3
-20 ~ 0	C'	2.4
0 ~ 20	C'	2.5
20 ~ 40	C'	2.6
40 ~ 60	C'	2.6
60 ~ 80	C'	2.7
-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	2.6
-20 ~ 0	D	2.6
0 ~ 20	D	2.7
20 ~ 40	D	2.8
40 ~ 60	D	2.9
60 ~ 80	D	2.9
-40 ~ -20	e	2.7
-20 ~ 0	e	2.8
0 ~ 20	e	2.9
20 ~ 40	e	3
40 ~ 60	e	3.1
60 ~ 80	e	3.2
-40 ~ -20	F	3.2
-20 ~ 0	F	3.3
0 ~ 20	F	3.4
20 ~ 40	F	3.5
40 ~ 60	F	3.7
60 ~ 80	F	3.8
-40 ~ -20	g	3.7
-20 ~ 0	g	3.8
0 ~ 20	g	4
20 ~ 40	g	4.1
40 ~ 60	g	4.2
60 ~ 80	g	4.4
-40 ~ -20	i	5.2
-20 ~ 0	i	5.4
0 ~ 20	i	5.6
20 ~ 40	i	5.8
40 ~ 60	i	6
60 ~ 80	i	6.2