PBL 1 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.548141 n_e = 1.550986	V_d = 45.78 V_e = 45.50	n_F - n_C = 0.011973 n_F' - n_C' = 0.012108	Coloring: 0.31 - 0.34 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.3489663 C2 = -0.0075869873 C3 = 0.016684762 C4 = 0.00017147637 C5 = 0.000025194777 C6 = 0.00000018523864

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.535441
n _s	1.538449
n _r	1.542562
n _C	1.544565
n _C'	1.545130
n _0.6328	1.545659
n _D	1.548035
n _d	1.548141
n _e	1.550986
n _F	1.556538
n _F'	1.557239
n _g	1.563308
n _h	1.569079
n _i	1.579266
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7620
P_C,A'	0.3330
P_d,C	0.2986
P_e,C	0.5362
P_g,d	1.2667
P_g,F	0.5654
P_h,g	0.4819
P_i,g	1.3328
P_C',t	0.8092
P_e,C'	0.4890
P_F',e	0.5222
P_i,F'	1.8397

transmittance: 10 mm
τ_0.34	0.927
τ_0.35	0.965
τ_0.36	0.982
τ_0.37	0.988
τ_0.38	0.99
τ_0.39	0.995
τ_0.4	0.997
τ_0.42	0.997
τ_0.44	0.996
τ_0.46	0.997
τ_0.48	0.998
τ_0.5	0.998
τ_0.55	0.999
τ_0.6	0.998
τ_0.65	0.998
τ_0.7	0.998

Poisson coef.: 0.212
Rigidity: 254 Pa*10⁸
Young module: 616 Pa*10⁸
Knoop hardness: 430
Abrasion: 106

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	84
100 ~ 300	97

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	C'	2.2
-20 ~ 0	C'	2.3
0 ~ 20	C'	2.4
20 ~ 40	C'	2.6
40 ~ 60	C'	2.8
60 ~ 80	C'	3
-40 ~ -20	D	2.4
-20 ~ 0	D	2.5
0 ~ 20	D	2.5
20 ~ 40	D	2.7
40 ~ 60	D	2.9
60 ~ 80	D	3.1
-40 ~ -20	e	2.7
-20 ~ 0	e	2.7
0 ~ 20	e	2.8
20 ~ 40	e	2.9
40 ~ 60	e	3
60 ~ 80	e	3.2
-40 ~ -20	F	3.2
-20 ~ 0	F	3.2
0 ~ 20	F	3.3
20 ~ 40	F	3.4
40 ~ 60	F	3.6
60 ~ 80	F	3.8
-40 ~ -20	g	3.7
-20 ~ 0	g	3.8
0 ~ 20	g	3.9
20 ~ 40	g	4
40 ~ 60	g	4.2
60 ~ 80	g	4.4