BAH10 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.670029 n_e = 1.673400	V_d = 47.25 V_e = 46.95	n_F - n_C = 0.014179 n_F' - n_C' = 0.014341	Coloring: 0.35 - 0.40 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.7304591 C2 = -0.010633848 C3 = 0.019427563 C4 = 0.00082098728 C5 = -0.000052104571 C6 = 0.0000044475343

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.655038
n _s	1.658593
n _r	1.663435
n _C	1.665800
n _C'	1.666467
n _0.6328	1.667092
n _D	1.669904
n _d	1.670029
n _e	1.673400
n _F	1.679979
n _F'	1.680808
n _g	1.687981
n _h	1.694786
n _i	1.706806
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7589
P_C,A'	0.3316
P_d,C	0.2982
P_e,C	0.5360
P_g,d	1.2661
P_g,F	0.5643
P_h,g	0.4798
P_i,g	1.3275
P_C',t	0.8059
P_e,C'	0.4889
P_F',e	0.5224
P_i,F'	1.8334

transmittance: 10 mm
τ_0.4	0.922
τ_0.42	0.966
τ_0.44	0.979
τ_0.46	0.985
τ_0.48	0.989
τ_0.5	0.993
τ_0.55	0.996
τ_0.6	0.995
τ_0.65	0.995
τ_0.7	0.996
τ_0.8	0.998
τ_0.9	0.998

Poisson coef.: 0.272
Rigidity: 339 Pa*10⁸
Young module: 863 Pa*10⁸
Knoop hardness: 540
Abrasion: 167

Climatic resistance: 3
Resistance to acids: 52.2
Phosphate resistance: 3.2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	71
100 ~ 300	82

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	C'	2.8
-20 ~ 0	C'	2.8
0 ~ 20	C'	2.8
20 ~ 40	C'	2.9
40 ~ 60	C'	3.1
60 ~ 80	C'	3.3
-40 ~ -20	D	3
-20 ~ 0	D	3
0 ~ 20	D	3.1
20 ~ 40	D	3.2
40 ~ 60	D	3.3
60 ~ 80	D	3.5
-40 ~ -20	e	3.2
-20 ~ 0	e	3.2
0 ~ 20	e	3.3
20 ~ 40	e	3.4
40 ~ 60	e	3.6
60 ~ 80	e	3.8
-40 ~ -20	F	3.7
-20 ~ 0	F	3.8
0 ~ 20	F	3.9
20 ~ 40	F	4
40 ~ 60	F	4.2
60 ~ 80	F	4.5
-40 ~ -20	g	4.2
-20 ~ 0	g	4.3
0 ~ 20	g	4.4
20 ~ 40	g	4.6
40 ~ 60	g	4.8
60 ~ 80	g	5