PBL27 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.575006 n_e = 1.578295	V_d = 41.49 V_e = 41.21	n_F - n_C = 0.013858 n_F' - n_C' = 0.014031	Coloring: 0.31 - 0.34 mkm.

Type: Schott
Spectral range: 0.3650146 - 1.01398 mkm.
C1 = 2.4269332 C2 = -0.0089789895 C3 = 0.017578385 C4 = 0.00079125417 C5 = -0.000043016897 C6 = 0.0000042474552

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	1.560612
n _s	1.563977
n _r	1.568618
n _C	1.570901
n _C'	1.571547
n _0.6328	1.572153
n _D	1.574884
n _d	1.575006
n _e	1.578295
n _F	1.584759
n _F'	1.585578
n _g	1.592697
n _h	1.599510
n _i	1.611687
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	0.7424
P_C,A'	0.3268
P_d,C	0.2961
P_e,C	0.5335
P_g,d	1.2765
P_g,F	0.5727
P_h,g	0.4916
P_i,g	1.3702
P_C',t	0.7890
P_e,C'	0.4869
P_F',e	0.5254
P_i,F'	1.8839

transmittance: 10 mm
τ_0.35	0.95
τ_0.36	0.976
τ_0.37	0.984
τ_0.38	0.986
τ_0.39	0.994
τ_0.4	0.996
τ_0.42	0.996
τ_0.44	0.996
τ_0.46	0.997
τ_0.48	0.997
τ_0.5	0.996
τ_0.55	0.998
τ_0.6	0.997
τ_0.65	0.997
τ_0.7	0.998
τ_0.8	0.999
τ_0.9	0.999

Poisson coef.: 0.212
Rigidity: 243 Pa*10⁸
Young module: 589 Pa*10⁸
Knoop hardness: 440
Abrasion: 137

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	76
100 ~ 300	90

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	C'	3
-20 ~ 0	C'	3.1
0 ~ 20	C'	3.2
20 ~ 40	C'	3.4
40 ~ 60	C'	3.6
60 ~ 80	C'	3.8
-40 ~ -20	D	3.3
-20 ~ 0	D	3.3
0 ~ 20	D	3.5
20 ~ 40	D	3.7
40 ~ 60	D	3.9
60 ~ 80	D	4.1
-40 ~ -20	e	3.5
-20 ~ 0	e	3.6
0 ~ 20	e	3.7
20 ~ 40	e	4
40 ~ 60	e	4.2
60 ~ 80	e	4.5
-40 ~ -20	F	4.1
-20 ~ 0	F	4.3
0 ~ 20	F	4.4
20 ~ 40	F	4.7
40 ~ 60	F	4.9
60 ~ 80	F	5.2
-40 ~ -20	g	4.8
-20 ~ 0	g	4.9
0 ~ 20	g	5.1
20 ~ 40	g	5.3
40 ~ 60	g	5.6
60 ~ 80	g	6