S-BSM36 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.642495 n_e = 1.645120	V_d = 58.36 V_e = 58.13	n_F - n_C = 0.011007 n_F' - n_C' = 0.011097	Coloring: 0.30 - 0.36 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.6546711 C2 = -0.012819365 C3 = 0.015197193 C4 = 0.00050420821 C5 = -0.000034995634 C6 = 0.0000020492682

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.629944
n _s	1.633145
n _r	1.637220
n _C	1.639138
n _C'	1.639673
n _0.6328	1.640173
n _D	1.642396
n _d	1.642495
n _e	1.645120
n _F	1.650145
n _F'	1.650770
n _g	1.656105
n _h	1.661043
n _i	1.669471
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8352
P_C,A'	0.3501
P_d,C	0.3049
P_e,C	0.5434
P_g,d	1.2364
P_g,F	0.5413
P_h,g	0.4486
P_i,g	1.2143
P_C',t	0.8838
P_e,C'	0.4948
P_F',e	0.5133
P_i,F'	1.6989

transmittance: 10 mm
τ_0.37	0.931
τ_0.38	0.959
τ_0.39	0.973
τ_0.4	0.982
τ_0.42	0.99
τ_0.44	0.992
τ_0.46	0.994
τ_0.48	0.996
τ_0.5	0.997
τ_0.55	0.998
τ_0.6	0.998
τ_0.65	0.999
τ_0.7	0.999

Poisson coef.: 0.277
Rigidity: 349 Pa*10⁸
Young module: 892 Pa*10⁸
Knoop hardness: 550
Abrasion: 127

Climatic resistance: 3
Resistance to acids: 53.2
Phosphate resistance: 4.2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	64
100 ~ 300	78

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	1.2
-20 ~ 0	t	1.2
0 ~ 20	t	1.3
20 ~ 40	t	1.4
40 ~ 60	t	1.5
60 ~ 80	t	1.7
-40 ~ -20	C'	1.5
-20 ~ 0	C'	1.6
0 ~ 20	C'	1.7
20 ~ 40	C'	1.8
40 ~ 60	C'	2
60 ~ 80	C'	2.2
-40 ~ -20		1.6
-20 ~ 0		1.6
0 ~ 20		1.7
20 ~ 40		1.8
40 ~ 60		2
60 ~ 80		2.2
-40 ~ -20	D	1.7
-20 ~ 0	D	1.7
0 ~ 20	D	1.8
20 ~ 40	D	2
40 ~ 60	D	2.2
60 ~ 80	D	2.4
-40 ~ -20	e	1.8
-20 ~ 0	e	1.8
0 ~ 20	e	2
20 ~ 40	e	2.1
40 ~ 60	e	2.3
60 ~ 80	e	2.6
-40 ~ -20	F	2
-20 ~ 0	F	2.1
0 ~ 20	F	2.3
20 ~ 40	F	2.5
40 ~ 60	F	2.7
60 ~ 80	F	3
-40 ~ -20	g	2.3
-20 ~ 0	g	2.4
0 ~ 20	g	2.6
20 ~ 40	g	2.8
40 ~ 60	g	3
60 ~ 80	g	3.3