PBH 6 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.805176 n_e = 1.812646	V_d = 25.43 V_e = 25.23	n_F - n_C = 0.031656 n_F' - n_C' = 0.032198	Coloring: 0.36 - 0.42 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 3.120642 C2 = -0.011286328 C3 = 0.040543249 C4 = 0.0033876996 C5 = -0.00024180036 C6 = 0.000027440285

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.775240
n _s	1.781622
n _r	1.791179
n _C	1.796092
n _C'	1.797502
n _0.6328	1.798832
n _D	1.804903
n _d	1.805176
n _e	1.812646
n _F	1.827749
n _F'	1.829701
n _g	1.847058
n _h	1.864358
n _i	1.897133
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.6587
P_C,A'	0.3040
P_d,C	0.2869
P_e,C	0.5229
P_g,d	1.3230
P_g,F	0.6099
P_h,g	0.5464
P_i,g	1.5818
P_C',t	0.7032
P_e,C'	0.4783
P_F',e	0.5387
P_i,F'	2.1301

transmittance: 10 mm
τ_0.42	0.945
τ_0.44	0.974
τ_0.46	0.985
τ_0.48	0.991
τ_0.5	0.995
τ_0.55	0.998
τ_0.6	0.998
τ_0.65	0.997
τ_0.7	0.998
τ_0.8	0.998
τ_0.9	0.999

Poisson coef.: 0.244
Rigidity: 218 Pa*10⁸
Young module: 543 Pa*10⁸
Knoop hardness: 340
Abrasion: 212

Climatic resistance: 3
Resistance to acids: 51.2
Phosphate resistance: 3.2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	81
100 ~ 300	90

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	C'	7.1
-20 ~ 0	C'	8.4
0 ~ 20	C'	9.3
20 ~ 40	C'	9.5
40 ~ 60	C'	10.1
60 ~ 80	C'	10.4
-40 ~ -20	D	7.9
-20 ~ 0	D	9.2
0 ~ 20	D	10.1
20 ~ 40	D	10.4
40 ~ 60	D	11
60 ~ 80	D	11.3
-40 ~ -20	e	8.8
-20 ~ 0	e	10.1
0 ~ 20	e	11.1
20 ~ 40	e	11.4
40 ~ 60	e	12
60 ~ 80	e	12.4
-40 ~ -20	F	10.8
-20 ~ 0	F	12.4
0 ~ 20	F	13.5
20 ~ 40	F	13.8
40 ~ 60	F	14.6
60 ~ 80	F	15.1
-40 ~ -20	g	13.1
-20 ~ 0	g	14.9
0 ~ 20	g	16.3
20 ~ 40	g	16.8
40 ~ 60	g	17.6
60 ~ 80	g	18.1