PBL 6 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.531716 n_e = 1.534302	V_d = 48.90 V_e = 48.62	n_F - n_C = 0.010872 n_F' - n_C' = 0.010987	Coloring: 0.31 - 0.33 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.3036685 C2 = -0.0076028355 C3 = 0.014811205 C4 = 0.00024182527 C5 = 0.0000048392964 C6 = 0.00000089395406

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.520030
n _s	1.522833
n _r	1.526620
n _C	1.528454
n _C'	1.528970
n _0.6328	1.529454
n _D	1.531620
n _d	1.531716
n _e	1.534302
n _F	1.539327
n _F'	1.539958
n _g	1.545410
n _h	1.550561
n _i	1.559591
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7748
P_C,A'	0.3363
P_d,C	0.3000
P_e,C	0.5379
P_g,d	1.2594
P_g,F	0.5594
P_h,g	0.4737
P_i,g	1.3043
P_C',t	0.8223
P_e,C'	0.4904
P_F',e	0.5201
P_i,F'	1.8057

transmittance: 10 mm
τ_0.34	0.943
τ_0.35	0.973
τ_0.36	0.986
τ_0.37	0.989
τ_0.38	0.99
τ_0.39	0.995
τ_0.4	0.997
τ_0.42	0.996
τ_0.44	0.995
τ_0.46	0.996
τ_0.48	0.997
τ_0.5	0.997
τ_0.55	0.998
τ_0.6	0.997
τ_0.65	0.997
τ_0.7	0.998

Poisson coef.: 0.205
Rigidity: 251 Pa*10⁸
Young module: 605 Pa*10⁸
Knoop hardness: 450
Abrasion: 113

Climatic resistance: 1
Resistance to acids: 1
Phosphate resistance: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	83
100 ~ 300	90

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	1.9
-20 ~ 0	t	1.8
0 ~ 20	t	1.8
20 ~ 40	t	2
40 ~ 60	t	2.1
60 ~ 80	t	2.3
-40 ~ -20	C'	2.5
-20 ~ 0	C'	2.4
0 ~ 20	C'	2.4
20 ~ 40	C'	2.5
40 ~ 60	C'	2.6
60 ~ 80	C'	2.7
-40 ~ -20		2.5
-20 ~ 0		2.5
0 ~ 20		2.4
20 ~ 40		2.5
40 ~ 60		2.6
60 ~ 80		2.7
-40 ~ -20	D	2.6
-20 ~ 0	D	2.6
0 ~ 20	D	2.6
20 ~ 40	D	2.7
40 ~ 60	D	2.8
60 ~ 80	D	2.9
-40 ~ -20	e	3
-20 ~ 0	e	2.9
0 ~ 20	e	2.9
20 ~ 40	e	2.9
40 ~ 60	e	3
60 ~ 80	e	3.1
-40 ~ -20	F	3.2
-20 ~ 0	F	3.2
0 ~ 20	F	3.3
20 ~ 40	F	3.4
40 ~ 60	F	3.5
60 ~ 80	F	3.7
-40 ~ -20	g	3.7
-20 ~ 0	g	3.7
0 ~ 20	g	3.7
20 ~ 40	g	3.9
40 ~ 60	g	4
60 ~ 80	g	4.2