PBM 5 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.603419 n_e = 1.607184	V_d = 38.01 V_e = 37.74	n_F - n_C = 0.015874 n_F' - n_C' = 0.016086	Coloring: 0.32 - 0.35 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.5078369 C2 = -0.008947152 C3 = 0.020469459 C4 = 0.00089114494 C5 = -0.000036312577 C6 = 0.0000045477906

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.587249
n _s	1.590956
n _r	1.596162
n _C	1.598746
n _C'	1.599480
n _0.6328	1.600169
n _D	1.603280
n _d	1.603419
n _e	1.607184
n _F	1.614621
n _F'	1.615566
n _g	1.623820
n _h	1.631768
n _i	1.646073
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7243
P_C,A'	0.3222
P_d,C	0.2943
P_e,C	0.5314
P_g,d	1.2851
P_g,F	0.5795
P_h,g	0.5007
P_i,g	1.4018
P_C',t	0.7704
P_e,C'	0.4853
P_F',e	0.5280
P_i,F'	1.9217

transmittance: 10 mm
τ_0.36	0.929
τ_0.37	0.961
τ_0.38	0.973
τ_0.39	0.986
τ_0.4	0.992
τ_0.42	0.994
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.: 0.221
Rigidity: 236 Pa*10⁸
Young module: 576 Pa*10⁸
Knoop hardness: 420
Abrasion: 133

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

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	88
100 ~ 300	98

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	C'	2.5
-20 ~ 0	C'	2.5
0 ~ 20	C'	2.6
20 ~ 40	C'	2.9
40 ~ 60	C'	3.2
60 ~ 80	C'	3.6
-40 ~ -20	D	2.8
-20 ~ 0	D	2.8
0 ~ 20	D	2.9
20 ~ 40	D	3.3
40 ~ 60	D	3.6
60 ~ 80	D	4
-40 ~ -20	e	3.1
-20 ~ 0	e	3.1
0 ~ 20	e	3.3
20 ~ 40	e	3.6
40 ~ 60	e	3.9
60 ~ 80	e	4.3
-40 ~ -20	F	3.7
-20 ~ 0	F	3.8
0 ~ 20	F	3.8
20 ~ 40	F	4.3
40 ~ 60	F	4.8
60 ~ 80	F	5.2
-40 ~ -20	g	4.6
-20 ~ 0	g	4.6
0 ~ 20	g	4.9
20 ~ 40	g	5.2
40 ~ 60	g	5.6
60 ~ 80	g	6.1