To be fair, for most of us, using fiber optic cables for digital audio or network connections may require the use of off the shelf terminals. We stuck the cable into the socket and set off. We know there will be an LED and some lenses, but that’s all. [Ted yapo] but by building his own terminals, he went further in the field of optical fiber. Facing the relatively high cost of the spherical lens used to focus LED light to the end of the fiber, he began to look out. He found that spherical glass anti-collision billiards used when boiling liquids in the laboratory were an acceptable and much cheaper alternative.
The focal length of the spherical lens is very short, which means that Anthony van Leeuwenhoek’s use of the spherical lens in the microscope is very suitable for LED focusing in a small space at the end of the optical fiber. For single wavelength light, color difference is irrelevant. The glass ball seems to be a uniform ball, enough to complete the work. Installing led and optical fiber terminal in 3D print block can control the relative position of the ball to achieve optimal light transmission. This is a relatively simple hacker attack mentioned in the twitter post, but we like it because it is cheap and has insight into the world of optical fiber terminals.