Viktor: Displays & Signals

Jürg Lehni & Jenny Hirons, A Taxonomy of Communication, 2016

Smoke Signals
One of the oldest form of long distance communication, used by the North American indigenous peoples, along with soldiers in Ancient China and in a more complex form in Ancient Greece. The use of smoke signals to indicate the selection of a new Pope during a papal conclave is a modern day example of the method still in use.

Rescue Signal Mirror
A simple hand-held mirror which can be used to reflect sunlight and thus catch the attention of a distant observer. Signal mirrors can be improvised out of any reflective material; purchased mirrors will include a small sighting hole that enables the signaler to direct flashes of light from the mirror at a particular target.

https://wiki.travellerrpg.com/Signal_mirror
https://survive-prepare.com/2012/12/28/signaling-for-rescue-2-signal-mirror/

LCD Display
Geascript 38 Segment Alphanumerical LCD display unit by AEG MIS

Devised for display of large letters and numbers in daylight, as used by parking structures, displays on busses and traffic control systems all across Europe.

Cathode Ray Tube
The Cathode Ray Tube (CRT) was developed for television in the 40s. The CRT shoots a focused electron beam from the back of the tube to the front of the tube. The front of the tube is coated with phosphors that glow when they are struck by the electron beam.

Split Flap Display
An electromechanical display device that presents changeable alphanumeric text. Often used as a public transport timetable in airports or railway stations. Drawing from Patent US 5477630, https://www.google.com/patents/US5477630

Swedish Semaphore Tower
Credit for the first successful optical telegraph goes to the French engineer Claude Chappe and his brothers in 1792, who succeeded in covering France with a network of 556 stations stretching a total distance of 3,000 miles. Le système Chappe was used for military and national communications until the 1850s.

At the same time as Chappe, the Swedish inventor Abraham Niclas Edelcrantz experimented with the optical telegraph in Sweden. In 1794 he inaugurated his telegraph with a poem dedicated to the Swedish King on his birthday. The message went from the Palace in Stockholm to the King at Drottningholm.

https://en.wikipedia.org/wiki/Semaphore_line#Sweden



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