PBH53 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.846657 n_e = 1.855010	V_d = 23.88 V_e = 23.69	n_F - n_C = 0.035446 n_F' - n_C' = 0.036076	Coloring: 0.37 - 0.44 mkm.

Type: Schott
Spectral range: 0.4046561 - 1.01398 mkm.
C1 = 3.2498918 C2 = -0.010466366 C3 = 0.048000686 C4 = 0.0031859922 C5 = -0.00015447369 C6 = 0.000026258671

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.813480
n _s	1.820476
n _r	1.831064
n _C	1.836529
n _C'	1.838098
n _0.6328	1.839580
n _D	1.846352
n _d	1.846657
n _e	1.855010
n _F	1.871975
n _F'	1.874175
n _g	1.893814
n _h	1.913499
n _i	-----
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.6502
P_C,A'	0.3017
P_d,C	0.2857
P_e,C	0.5214
P_g,d	1.3303
P_g,F	0.6161
P_h,g	0.5553
P_i,g	-----
P_C',t	0.6945
P_e,C'	0.4771
P_F',e	0.5406
P_i,F'	-----

transmittance: 10 mm
τ_0.42	0.909
τ_0.44	0.958
τ_0.46	0.979
τ_0.48	0.989
τ_0.5	0.994
τ_0.55	0.998
τ_0.6	0.998
τ_0.65	0.998
τ_0.7	0.999

Poisson coef.: 0.25
Rigidity: 212 Pa*10⁸
Young module: 530 Pa*10⁸
Knoop hardness: 330
Abrasion: 257

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	78
100 ~ 300	87

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	8.6
-20 ~ 0	t	8.5
0 ~ 20	t	8.6
20 ~ 40	t	8.8
40 ~ 60	t	9
60 ~ 80	t	9
-40 ~ -20	C'	10.1
-20 ~ 0	C'	10.4
0 ~ 20	C'	10.8
20 ~ 40	C'	11.3
40 ~ 60	C'	11.8
60 ~ 80	C'	12.3
-40 ~ -20		10.6
-20 ~ 0		10.8
0 ~ 20		11.1
20 ~ 40		11.6
40 ~ 60		12
60 ~ 80		12.4
-40 ~ -20	D	11.1
-20 ~ 0	D	11.4
0 ~ 20	D	11.9
20 ~ 40	D	12.4
40 ~ 60	D	12.9
60 ~ 80	D	13.4
-40 ~ -20	e	12.2
-20 ~ 0	e	12.6
0 ~ 20	e	13
20 ~ 40	e	13.6
40 ~ 60	e	14.1
60 ~ 80	e	14.8
-40 ~ -20	F	13.7
-20 ~ 0	F	14.5
0 ~ 20	F	15.4
20 ~ 40	F	16.3
40 ~ 60	F	17.3
60 ~ 80	F	18.3
-40 ~ -20	g	18
-20 ~ 0	g	18.6
0 ~ 20	g	19.3
20 ~ 40	g	20.1
40 ~ 60	g	21
60 ~ 80	g	21.8