Braille typewriter. LEDs (light emitting diodes) and other components forming part of a prototype braille typewriter, built by a student in a photonics laboratory. Photonics is the science and technology of light. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Molloy, Cordelia |
Bildgröße: | 7237 px × 4830 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |