BAM23 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.607167 n_e = 1.610743	V_d = 40.26 V_e = 39.97	n_F - n_C = 0.015079 n_F' - n_C' = 0.015276	Coloring: 0.32 - 0.36 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.5222179 C2 = -0.0087270222 C3 = 0.020177286 C4 = 0.00061839451 C5 = 0.00000018063926 C6 = 0.0000020159505

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.591683
n _s	1.595258
n _r	1.600249
n _C	1.602717
n _C'	1.603416
n _0.6328	1.604072
n _D	1.607034
n _d	1.607167
n _e	1.610743
n _F	1.617797
n _F'	1.618692
n _g	1.626498
n _h	1.633989
n _i	1.647363
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7316
P_C,A'	0.3242
P_d,C	0.2950
P_e,C	0.5322
P_g,d	1.2819
P_g,F	0.5770
P_h,g	0.4967
P_i,g	1.3836
P_C',t	0.7780
P_e,C'	0.4859
P_F',e	0.5271
P_i,F'	1.9012

transmittance: 10 mm
τ_0.36	0.931
τ_0.37	0.957
τ_0.38	0.97
τ_0.39	0.98
τ_0.4	0.987
τ_0.42	0.991
τ_0.44	0.991
τ_0.46	0.993
τ_0.48	0.995
τ_0.5	0.996
τ_0.55	0.998
τ_0.6	0.997
τ_0.65	0.996
τ_0.7	0.997
τ_0.8	0.998
τ_0.9	0.998

Poisson coef.: 0.23
Rigidity: 254 Pa*10⁸
Young module: 625 Pa*10⁸
Knoop hardness: 420
Abrasion: 152

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

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	89
100 ~ 300	103

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	C'	2.1
-20 ~ 0	C'	2.2
0 ~ 20	C'	2.3
20 ~ 40	C'	2.5
40 ~ 60	C'	2.8
60 ~ 80	C'	3
-40 ~ -20	D	2.3
-20 ~ 0	D	2.4
0 ~ 20	D	2.6
20 ~ 40	D	2.8
40 ~ 60	D	3.1
60 ~ 80	D	3.3
-40 ~ -20	e	2.6
-20 ~ 0	e	2.7
0 ~ 20	e	2.9
20 ~ 40	e	3.1
40 ~ 60	e	3.4
60 ~ 80	e	3.7
-40 ~ -20	F	3.3
-20 ~ 0	F	3.4
0 ~ 20	F	3.6
20 ~ 40	F	3.9
40 ~ 60	F	4.2
60 ~ 80	F	4.5
-40 ~ -20	g	4
-20 ~ 0	g	4.2
0 ~ 20	g	4.4
20 ~ 40	g	4.7
40 ~ 60	g	5
60 ~ 80	g	5.4