PBL21 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.573091 n_e = 1.576287	V_d = 42.57 V_e = 42.28	n_F - n_C = 0.013460 n_F' - n_C' = 0.013628	Coloring: 0.32 - 0.35 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.4238569 C2 = -0.0094940065 C3 = 0.016206639 C4 = 0.0010105149 C5 = -0.000072683761 C6 = 0.0000054198492

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.559087
n _s	1.562379
n _r	1.566889
n _C	1.569105
n _C'	1.569732
n _0.6328	1.570321
n _D	1.572973
n _d	1.573091
n _e	1.576287
n _F	1.582566
n _F'	1.583360
n _g	1.590263
n _h	1.596855
n _i	1.608609
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7443
P_C,A'	0.3267
P_d,C	0.2961
P_e,C	0.5335
P_g,d	1.2757
P_g,F	0.5718
P_h,g	0.4897
P_i,g	1.3629
P_C',t	0.7908
P_e,C'	0.4869
P_F',e	0.5254
P_i,F'	1.8757

transmittance: 10 mm
τ_0.35	0.922
τ_0.36	0.961
τ_0.37	0.976
τ_0.38	0.981
τ_0.39	0.991
τ_0.4	0.994
τ_0.42	0.995
τ_0.44	0.994
τ_0.46	0.995
τ_0.48	0.996
τ_0.5	0.997
τ_0.55	0.998
τ_0.6	0.997
τ_0.65	0.996
τ_0.7	0.998

Poisson coef.: 0.22
Rigidity: 245 Pa*10⁸
Young module: 597 Pa*10⁸
Knoop hardness: 440
Abrasion: 136

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	85
100 ~ 300	95

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	1.2
-20 ~ 0	t	1.2
0 ~ 20	t	1.4
20 ~ 40	t	1.5
40 ~ 60	t	1.7
60 ~ 80	t	2.1
-40 ~ -20	C'	1.9
-20 ~ 0	C'	1.9
0 ~ 20	C'	2.1
20 ~ 40	C'	2.2
40 ~ 60	C'	2.4
60 ~ 80	C'	2.7
-40 ~ -20		2
-20 ~ 0		2
0 ~ 20		2.1
20 ~ 40		2.3
40 ~ 60		2.5
60 ~ 80		2.8
-40 ~ -20	D	2.1
-20 ~ 0	D	2.2
0 ~ 20	D	2.3
20 ~ 40	D	2.5
40 ~ 60	D	2.7
60 ~ 80	D	3
-40 ~ -20	e	2.5
-20 ~ 0	e	2.5
0 ~ 20	e	2.6
20 ~ 40	e	2.8
40 ~ 60	e	3
60 ~ 80	e	3.2
-40 ~ -20	F	2.9
-20 ~ 0	F	3
0 ~ 20	F	3.2
20 ~ 40	F	3.4
40 ~ 60	F	3.6
60 ~ 80	F	3.9
-40 ~ -20	g	3.5
-20 ~ 0	g	3.6
0 ~ 20	g	3.8
20 ~ 40	g	4.1
40 ~ 60	g	4.4
60 ~ 80	g	4.7