Woraus optical telegraph besteht
Chappe’s semaphore line.
- Semaphore tower — hat als Teil. A tower with movable sails.
- Semaphore signal arms — hat als Teil. The positions of the arms encode characters.
- Telescope — hat als Teil. Operators read the neighbouring tower through a telescope.
- Lens — nutzt. Signals were read through telescopes.
- Telescope — nutzt. Signals were read through a telescope.
- Lever — nutzt. The arms were moved by a system of levers and rods.
- Wood — ist hergestellt aus. Chappe’s semaphore has wooden arms on a mast.