BSM16C - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.620409 n_e = 1.622865	V_d = 60.25 V_e = 59.98	n_F - n_C = 0.010296 n_F' - n_C' = 0.010383	Coloring: 0.29 - 0.36 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.5858505 C2 = -0.011425977 C3 = 0.013924703 C4 = 0.00050343054 C5 = -0.000036074659 C6 = 0.0000019912627

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.608754
n _s	1.611707
n _r	1.615489
n _C	1.617275
n _C'	1.617774
n _0.6328	1.618241
n _D	1.620318
n _d	1.620409
n _e	1.622865
n _F	1.627572
n _F'	1.628158
n _g	1.633158
n _h	1.637787
n _i	1.645681
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8275
P_C,A'	0.3483
P_d,C	0.3043
P_e,C	0.5428
P_g,d	1.2381
P_g,F	0.5424
P_h,g	0.4495
P_i,g	1.2162
P_C',t	0.8760
P_e,C'	0.4944
P_F',e	0.5140
P_i,F'	1.7018

transmittance: 10 mm
τ_0.36	0.912
τ_0.37	0.948
τ_0.38	0.968
τ_0.39	0.979
τ_0.4	0.986
τ_0.42	0.992
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	0.998
τ_0.65	0.998
τ_0.7	0.998

Poisson coef.: 0.267
Rigidity: 342 Pa*10⁸
Young module: 868 Pa*10⁸
Knoop hardness: 530
Abrasion: 132

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	63
100 ~ 300	74

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	2.1
-20 ~ 0	t	2
0 ~ 20	t	2
20 ~ 40	t	2.1
40 ~ 60	t	2.3
60 ~ 80	t	2.5
-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		2.1
-20 ~ 0		2.2
0 ~ 20		2.4
20 ~ 40		2.6
40 ~ 60		2.8
60 ~ 80		3
-40 ~ -20	D	2.2
-20 ~ 0	D	2.3
0 ~ 20	D	2.5
20 ~ 40	D	2.7
40 ~ 60	D	2.9
60 ~ 80	D	3.2
-40 ~ -20	e	2.4
-20 ~ 0	e	2.5
0 ~ 20	e	2.6
20 ~ 40	e	2.8
40 ~ 60	e	3.1
60 ~ 80	e	3.3
-40 ~ -20	F	2.6
-20 ~ 0	F	2.7
0 ~ 20	F	2.9
20 ~ 40	F	3.1
40 ~ 60	F	3.4
60 ~ 80	F	3.7
-40 ~ -20	g	2.9
-20 ~ 0	g	3
0 ~ 20	g	3.2
20 ~ 40	g	3.4
40 ~ 60	g	3.7
60 ~ 80	g	4