BSM14 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.603112 n_e = 1.605482	V_d = 60.70 V_e = 60.45	n_F - n_C = 0.009935 n_F' - n_C' = 0.010016	Coloring: 0.30 - 0.35 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.5308796 C2 = -0.010455738 C3 = 0.013933044 C4 = 0.00031725721 C5 = -0.000016497611 C6 = 0.0000011211981

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.591843
n _s	1.594691
n _r	1.598352
n _C	1.600082
n _C'	1.600565
n _0.6328	1.601016
n _D	1.603023
n _d	1.603112
n _e	1.605482
n _F	1.610017
n _F'	1.610581
n _g	1.615391
n _h	1.619842
n _i	1.627426
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.8292
P_C,A'	0.3495
P_d,C	0.3049
P_e,C	0.5435
P_g,d	1.2359
P_g,F	0.5409
P_h,g	0.4480
P_i,g	1.2112
P_C',t	0.8778
P_e,C'	0.4949
P_F',e	0.5132
P_i,F'	1.6954

transmittance: 10 mm
τ_0.36	0.931
τ_0.37	0.961
τ_0.38	0.976
τ_0.39	0.985
τ_0.4	0.991
τ_0.42	0.994
τ_0.44	0.994
τ_0.46	0.995
τ_0.48	0.996
τ_0.5	0.997
τ_0.55	0.998
τ_0.6	0.997
τ_0.65	0.996
τ_0.7	0.997

Poisson coef.: 0.257
Rigidity: 337 Pa*10⁸
Young module: 846 Pa*10⁸
Knoop hardness: 580
Abrasion: 126

Climatic resistance: 3
Resistance to acids: 51.2
Phosphate resistance: 2.2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	60
100 ~ 300	72

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	C'	2.5
-20 ~ 0	C'	2.5
0 ~ 20	C'	2.6
20 ~ 40	C'	2.7
40 ~ 60	C'	2.8
60 ~ 80	C'	2.9
-40 ~ -20	D	2.6
-20 ~ 0	D	2.6
0 ~ 20	D	2.7
20 ~ 40	D	2.8
40 ~ 60	D	3
60 ~ 80	D	3.1
-40 ~ -20	e	2.8
-20 ~ 0	e	2.8
0 ~ 20	e	2.8
20 ~ 40	e	2.9
40 ~ 60	e	3.1
60 ~ 80	e	3.2
-40 ~ -20	F	3
-20 ~ 0	F	3
0 ~ 20	F	3.1
20 ~ 40	F	3.3
40 ~ 60	F	3.5
60 ~ 80	F	3.5
-40 ~ -20	g	3.2
-20 ~ 0	g	3.3
0 ~ 20	g	3.4
20 ~ 40	g	3.6
40 ~ 60	g	3.8
60 ~ 80	g	3.8