PBH13 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.740768 n_e = 1.747060	V_d = 27.79 V_e = 27.57	n_F - n_C = 0.026652 n_F' - n_C' = 0.027092	Coloring: 0.37 - 0.42 mkm.

Type: Schott
Spectral range: 0.4046561 - 1.01398 mkm.
C1 = 2.9161406 C2 = -0.010147718 C3 = 0.035077729 C4 = 0.0020869984 C5 = -0.00011077712 C6 = 0.000017236453

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.715141
n _s	1.720701
n _r	1.728904
n _C	1.733083
n _C'	1.734279
n _0.6328	1.735406
n _D	1.740538
n _d	1.740768
n _e	1.747060
n _F	1.759736
n _F'	1.761372
n _g	1.775893
n _h	1.790329
n _i	-----
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.6731
P_C,A'	0.3080
P_d,C	0.2883
P_e,C	0.5243
P_g,d	1.3178
P_g,F	0.6061
P_h,g	0.5416
P_i,g	-----
P_C',t	0.7180
P_e,C'	0.4795
P_F',e	0.5369
P_i,F'	-----

transmittance: 10 mm
τ_0.42	0.936
τ_0.44	0.968
τ_0.46	0.981
τ_0.48	0.988
τ_0.5	0.992
τ_0.55	0.997
τ_0.6	0.996
τ_0.65	0.994
τ_0.7	0.996
τ_0.8	0.999
τ_0.9	0.999

Poisson coef.: 0.232
Rigidity: 243 Pa*10⁸
Young module: 600 Pa*10⁸
Knoop hardness: 400
Abrasion: 194

Climatic resistance: 2
Resistance to acids: 1.2
Phosphate resistance: 2

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	73
100 ~ 300	84

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	4.9
-20 ~ 0	t	5.1
0 ~ 20	t	5.3
20 ~ 40	t	5.8
40 ~ 60	t	6.3
60 ~ 80	t	6.9
-40 ~ -20	C'	6.4
-20 ~ 0	C'	6.5
0 ~ 20	C'	6.7
20 ~ 40	C'	7
40 ~ 60	C'	7.5
60 ~ 80	C'	8.1
-40 ~ -20		6.5
-20 ~ 0		6.6
0 ~ 20		6.8
20 ~ 40		7.1
40 ~ 60		7.7
60 ~ 80		8.3
-40 ~ -20	D	6.9
-20 ~ 0	D	7.1
0 ~ 20	D	7.3
20 ~ 40	D	7.7
40 ~ 60	D	8.2
60 ~ 80	D	8.8
-40 ~ -20	e	7.5
-20 ~ 0	e	7.7
0 ~ 20	e	8
20 ~ 40	e	8.3
40 ~ 60	e	8.9
60 ~ 80	e	9.5
-40 ~ -20	F	9.2
-20 ~ 0	F	9.5
0 ~ 20	F	9.8
20 ~ 40	F	10.2
40 ~ 60	F	10.8
60 ~ 80	F	11.4
-40 ~ -20	g	11
-20 ~ 0	g	11.4
0 ~ 20	g	11.8
20 ~ 40	g	12.5
40 ~ 60	g	13.3
60 ~ 80	g	14.3