 |
| |||
| photocell; photoelectric cell; photoelectric receptor | |||
| phototube (photoemissive detector requiring a battery for operation) | |||
| electric eye; electrical eye | |||
| lichtelektrische Zelle: 2 phrases in 1 subject |
| Optics branch of physics | 2 |
|
| |||
| photocell; photoelectric cell; photoelectric receptor | |||
| phototube (photoemissive detector requiring a battery for operation) | |||
| electric eye; electrical eye | |||
| lichtelektrische Zelle: 2 phrases in 1 subject |
| Optics branch of physics | 2 |