The history of glass fiber transmission

In ancient times, Greek glassblowers observed that glass rods could transmit light.

In 1854, Tyndall of England pointed out in a lecture at the Royal Society that light could be transmitted by reflection along curved pipes containing water, and confirmed this idea with experiments.

In 1870, British physicist Tyndall observed in his experiments that when light was irradiated into a container containing water, and water was poured out from the water outlet, the light also propagated along the water flow and appeared curved, which did not seem to conform to light. The law that only travels in straight lines. In fact, the light still travels in a straight line at this time, but there is a light reflection phenomenon in the water flow, so the light travels in a broken line. Light can also "take a detour".

In 1927, Baird in the United Kingdom first used the phenomenon of total reflection of light to make quartz fibers for image analysis, and obtained two patents.

In 1930, someone pulled out the quartz filament, and discussed the principle of its