BSL 3 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.498308 n_e = 1.500137	V_d = 65.02 V_e = 64.83	n_F - n_C = 0.007663 n_F' - n_C' = 0.007713	Coloring: 0.29 - 0.33 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.2187568 C2 = -0.010447185 C3 = 0.0095904498 C4 = 0.00028540943 C5 = -0.000019183741 C6 = 0.00000097004548

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.489159
n _s	1.491601
n _r	1.494577
n _C	1.495944
n _C'	1.496324
n _0.6328	1.496677
n _D	1.498239
n _d	1.498308
n _e	1.500137
n _F	1.503608
n _F'	1.504037
n _g	1.507686
n _h	1.511039
n _i	1.516704
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8854
P_C,A'	0.3611
P_d,C	0.3083
P_e,C	0.5470
P_g,d	1.2238
P_g,F	0.5321
P_h,g	0.4375
P_i,g	1.1767
P_C',t	0.9349
P_e,C'	0.4976
P_F',e	0.5089
P_i,F'	1.6529

transmittance: 10 mm
τ_0.34	0.941
τ_0.35	0.968
τ_0.36	0.983
τ_0.37	0.988
τ_0.38	0.986
τ_0.39	0.994
τ_0.4	0.995
τ_0.42	0.994
τ_0.44	0.996
τ_0.46	0.997
τ_0.48	0.998
τ_0.5	0.998
τ_0.55	0.998
τ_0.6	0.998
τ_0.65	0.998
τ_0.7	0.999
τ_0.8	0.999
τ_0.9	0.999
τ_2.5	0.25
τ_2.3254	0.57
τ_1.9701	0.9
τ_1.5296	0.967
τ_1.06	0.999
τ_0.66	0.998
τ_0.62	0.998
τ_0.58	0.998
τ_0.54607	0.998
τ_0.4358	0.991
τ_0.4047	0.98
τ_0.365	0.84

transmittance: 25 mm
τ_2.5	0.03
τ_2.3254	0.24
τ_1.9701	0.77
τ_1.5296	0.92
τ_1.06	0.997
τ_0.7	0.996
τ_0.66	0.996
τ_0.62	0.996
τ_0.58	0.996
τ_0.54607	0.995
τ_0.5	0.992
τ_0.46	0.985
τ_0.4358	0.978
τ_0.42	0.97
τ_0.4047	0.95
τ_0.4	0.94
τ_0.39	0.92
τ_0.38	0.85
τ_0.37	0.75
τ_0.365	0.65
τ_0.35	0.19

Poisson coef.: 0.221
Rigidity: 258 Pa*10⁸
Young module: 631 Pa*10⁸
Knoop hardness: 470
Abrasion: 90

Climatic resistance: 2
Resistance to acids: 3
Phosphate resistance: 2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	58
100 ~ 300	65
20 ~ 300	57

Temperature coefs. of n_abs
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20		2.2
20 ~ 40		3.3
60 ~ 80		3.8
-40 ~ -20	e	3.2
20 ~ 40	e	4.4
60 ~ 80	e	5.1
-40 ~ -20	g	4.3
20 ~ 40	g	5.6
60 ~ 80	g	6.4

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	C'	2.9
-20 ~ 0	C'	2.9
0 ~ 20	C'	3
20 ~ 40	C'	3.2
40 ~ 60	C'	3.4
60 ~ 80	C'	3.5
-40 ~ -20	D	3
-20 ~ 0	D	3
0 ~ 20	D	3.1
20 ~ 40	D	3.3
40 ~ 60	D	3.6
60 ~ 80	D	3.7
-40 ~ -20	e	3.1
-20 ~ 0	e	3.1
0 ~ 20	e	3.2
20 ~ 40	e	3.3
40 ~ 60	e	3.7
60 ~ 80	e	3.8
-40 ~ -20	F	3.3
-20 ~ 0	F	3.3
0 ~ 20	F	3.4
20 ~ 40	F	3.6
40 ~ 60	F	3.9
60 ~ 80	F	4
-40 ~ -20	g	3.5
-20 ~ 0	g	3.5
0 ~ 20	g	3.6
20 ~ 40	g	3.8
40 ~ 60	g	4.1
60 ~ 80	g	4.2
-40 ~ -20		4.4
20 ~ 40		4.7
60 ~ 80		4.9