PBM 6 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.636357 n_e = 1.640619	V_d = 35.37 V_e = 35.12	n_F - n_C = 0.017988 n_F' - n_C' = 0.018240	Coloring: 0.33 - 0.37 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.6040004 C2 = -0.0089503263 C3 = 0.023811801 C4 = 0.00097080592 C5 = -0.000030707494 C6 = 0.0000054397201

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.618286
n _s	1.622367
n _r	1.628180
n _C	1.631085
n _C'	1.631911
n _0.6328	1.632687
n _D	1.636200
n _d	1.636357
n _e	1.640619
n _F	1.649073
n _F'	1.650151
n _g	1.659596
n _h	1.668751
n _i	1.685376
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7114
P_C,A'	0.3190
P_d,C	0.2930
P_e,C	0.5300
P_g,d	1.2919
P_g,F	0.5850
P_h,g	0.5089
P_i,g	1.4331
P_C',t	0.7574
P_e,C'	0.4840
P_F',e	0.5299
P_i,F'	1.9582

transmittance: 10 mm
τ_0.37	0.913
τ_0.38	0.946
τ_0.39	0.969
τ_0.4	0.982
τ_0.42	0.991
τ_0.44	0.993
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	0.997
τ_0.7	0.998
τ_0.8	0.998
τ_0.9	0.998

Poisson coef.: 0.225
Rigidity: 241 Pa*10⁸
Young module: 590 Pa*10⁸
Knoop hardness: 420
Abrasion: 160

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

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	85
100 ~ 300	94

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	C'	3.7
-20 ~ 0	C'	3.8
0 ~ 20	C'	3.9
20 ~ 40	C'	4
40 ~ 60	C'	4.4
60 ~ 80	C'	4.4
-40 ~ -20	D	4
-20 ~ 0	D	4.1
0 ~ 20	D	4.2
20 ~ 40	D	4.5
40 ~ 60	D	4.8
60 ~ 80	D	4.8
-40 ~ -20	e	4.4
-20 ~ 0	e	4.5
0 ~ 20	e	4.6
20 ~ 40	e	4.8
40 ~ 60	e	5.2
60 ~ 80	e	5.3
-40 ~ -20	F	5.3
-20 ~ 0	F	5.4
0 ~ 20	F	5.5
20 ~ 40	F	5.7
40 ~ 60	F	6.2
60 ~ 80	F	6.3
-40 ~ -20	g	6.2
-20 ~ 0	g	6.4
0 ~ 20	g	6.6
20 ~ 40	g	6.9
40 ~ 60	g	7.4
60 ~ 80	g	7.5