The display of a calculator showing the figure 4
Numéro d’image : 11897105
| Macrophotograph of the display used to represent numbers on a calculator. The display consists of a strip of scintillating material which is divided into elements each of which may be independently given a positive potential. Above the strip,separated by a vacuum layer,is a negative electrode in the form of a grid. Electrons are torn from the grid to those regions of the scintillator with net positive charge,thus causing the emission of light. Numerals are reproduced by a microprocessor which activates a combination of the elements to create the desired figures. Magnification: x4 at 35mm size | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Michler, Astrid & Hans-Frieder |
| Taille de l’image : | 2492 px × 3543 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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