Beck
F/8,0 F=100,000 mm (30,0°)
[ f/8,0 f=103,043 mm (30,0°) ]
Beck
F/8,0 F=100,000 mm (30,0°)
[ f/8,0 f=103,043 mm (30,0°) ]
N° |
Rayon |
Indice d |
Constringence |
Épaisseur |
0 |
air | ***** |
***** | |
1 |
21,900 | 1,60650 |
58,1 |
1,800 |
2 |
74,000 | air |
***** |
2,360 |
3 |
26,900 | 1,61930 |
37,4 |
0,970 |
4 |
16,200 | air |
***** |
5,690 |
5 |
-297,000 | 1,51930 |
58,7 |
0,760 |
6 |
353,000 | air |
***** |
1,180 |
7 |
-15,900 | 1,57030 |
41,1 |
1,390 |
8 |
-27,050 | air |
***** |
2,150 |
9 |
-74,000 | 1,60650 |
58,1 |
1,800 |
10 |
-21,900 | air |
***** |
o3o-3k4f |
no dioptre diaphragme : 4 | Calcul n° 77
| |||
| Commentaire : tur nº119 a p158 GB 1906 27 180 | ||||
| Inventeur : H. C. Beck | Maison : | Date : 1906 | 11/111 | |