A General Electrodynamics Corporation ad for a television camera vidicon, a video camera tube – a thing that works like an old-fashioned television screen, scanning a ray of electrons really quickly across a grid.
I suppose the Chinese writing and mathematical formulae are just examples of things you need clear resolution to read on a screen. Yeah? Either away, it’s a great image for precision and for the kind of grid-thinking that these scanning components operate under.
The ad came from Informational Display from Jan/Feb 1966, which I found on archive.org.