Optical fibres emitting light,with human fingers. These fibres are used for transmitting sound and images in the form of light. Optical fibres are usually made from flexible glass that has a high refractive index. Each fibre consists of a core with an outer protective layer (cladding) that has a lower refractive index than the core. Light travelling through the fibre is contained within the core because of total internal reflection at the core/cladding boundary. This allows data to be transmitted over long distances,since there is little or no absorption of the light being used to transmit the data | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Horrell, Steve |
Bildgröße: | 3561 px × 4931 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |