BAH30 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.650157 n_e = 1.654072	V_d = 39.39 V_e = 39.10	n_F - n_C = 0.016505 n_F' - n_C' = 0.016726	Coloring: 0.33 - 0.38 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.6543867 C2 = -0.0084478289 C3 = 0.022275774 C4 = 0.00090008133 C5 = -0.000035291806 C6 = 0.0000047103195

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.633459
n _s	1.637242
n _r	1.642619
n _C	1.645301
n _C'	1.646062
n _0.6328	1.646778
n _D	1.650013
n _d	1.650157
n _e	1.654072
n _F	1.661806
n _F'	1.662789
n _g	1.671366
n _h	1.679620
n _i	1.694456
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7174
P_C,A'	0.3211
P_d,C	0.2942
P_e,C	0.5314
P_g,d	1.2849
P_g,F	0.5792
P_h,g	0.5000
P_i,g	1.3988
P_C',t	0.7635
P_e,C'	0.4852
P_F',e	0.5281
P_i,F'	1.9185

transmittance: 10 mm
τ_0.39	0.923
τ_0.4	0.948
τ_0.42	0.971
τ_0.44	0.981
τ_0.46	0.988
τ_0.48	0.992
τ_0.5	0.995
τ_0.55	0.997
τ_0.6	0.996
τ_0.65	0.996
τ_0.7	0.996
τ_0.8	0.996
τ_0.9	0.995

Poisson coef.: 0.258
Rigidity: 262 Pa*10⁸
Young module: 659 Pa*10⁸
Knoop hardness: 450
Abrasion: 205

Climatic resistance: 2
Resistance to acids: 51.2
Phosphate resistance: 2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	92
100 ~ 300	105

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	C'	2
-20 ~ 0	C'	2
0 ~ 20	C'	2.1
20 ~ 40	C'	2.3
40 ~ 60	C'	2.5
60 ~ 80	C'	2.7
-40 ~ -20	D	2.3
-20 ~ 0	D	2.3
0 ~ 20	D	2.5
20 ~ 40	D	2.7
40 ~ 60	D	2.9
60 ~ 80	D	3.1
-40 ~ -20	e	2.6
-20 ~ 0	e	2.7
0 ~ 20	e	2.8
20 ~ 40	e	3
40 ~ 60	e	3.2
60 ~ 80	e	3.5
-40 ~ -20	F	3.4
-20 ~ 0	F	3.5
0 ~ 20	F	3.6
20 ~ 40	F	3.8
40 ~ 60	F	4.1
60 ~ 80	F	4.4
-40 ~ -20	g	4.2
-20 ~ 0	g	4.4
0 ~ 20	g	4.5
20 ~ 40	g	4.8
40 ~ 60	g	5.1
60 ~ 80	g	5.4