PBH21 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.922861 n_e = 1.933247	V_d = 20.88 V_e = 20.71	n_F - n_C = 0.044189 n_F' - n_C' = 0.045042	Coloring: 0.39 - 0.45 mkm.

Type: Schott
Spectral range: 0.4046561 - 1.01398 mkm.
C1 = 3.4944623 C2 = -0.011841444 C3 = 0.058192781 C4 = 0.0052006403 C5 = -0.00036676216 C6 = 0.000053080361

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.882423
n _s	1.890795
n _r	1.903656
n _C	1.910357
n _C'	1.912288
n _0.6328	1.914113
n _D	1.922482
n _d	1.922861
n _e	1.933247
n _F	1.954546
n _F'	1.957330
n _g	1.982413
n _h	2.008024
n _i	-----
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.6321
P_C,A'	0.2959
P_d,C	0.2829
P_e,C	0.5180
P_g,d	1.3476
P_g,F	0.6306
P_h,g	0.5795
P_i,g	-----
P_C',t	0.6758
P_e,C'	0.4743
P_F',e	0.5449
P_i,F'	-----

transmittance: 10 mm
τ_0.46	0.911
τ_0.48	0.948
τ_0.5	0.97
τ_0.55	0.99
τ_0.6	0.99
τ_0.65	0.987
τ_0.7	0.985

Poisson coef.: 0.261
Rigidity: 210 Pa*10⁸
Young module: 529 Pa*10⁸
Knoop hardness: 300
Abrasion: 396

Climatic resistance: 3
Resistance to acids: 53.4
Phosphate resistance: 3.2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	88
100 ~ 300	99

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	8.3
-20 ~ 0	t	9
0 ~ 20	t	9.6
20 ~ 40	t	10.5
40 ~ 60	t	11.3
60 ~ 80	t	12.2
-40 ~ -20	C'	11.5
-20 ~ 0	C'	12
0 ~ 20	C'	12.5
20 ~ 40	C'	13.1
40 ~ 60	C'	13.6
60 ~ 80	C'	14.1
-40 ~ -20		11.7
-20 ~ 0		12.3
0 ~ 20		12.8
20 ~ 40		13.5
40 ~ 60		14
60 ~ 80		14.6
-40 ~ -20	D	12.8
-20 ~ 0	D	13.4
0 ~ 20	D	14
20 ~ 40	D	14.6
40 ~ 60	D	15.1
60 ~ 80	D	15.8
-40 ~ -20	e	14.2
-20 ~ 0	e	14.9
0 ~ 20	e	15.5
20 ~ 40	e	16.2
40 ~ 60	e	16.8
60 ~ 80	e	17.5
-40 ~ -20	F	18.1
-20 ~ 0	F	18.8
0 ~ 20	F	19.6
20 ~ 40	F	20.2
40 ~ 60	F	21
60 ~ 80	F	21.7
-40 ~ -20	g	22.5
-20 ~ 0	g	23.6
0 ~ 20	g	24.5
20 ~ 40	g	25.6
40 ~ 60	g	26.7
60 ~ 80	g	27.9