opto-mechanical device for displaying motion picture film by projecting it onto a screen
35 mm movie projector in operation Bill Hammack explains how a film projector works.
A movie projector (or film projector) is an opto-mechanical device for displaying motion picture film by projecting it onto a screen. Most of the optical and mechanical elements, except for the illumination and sound devices, are present in movie cameras. Modern movie projectors are specially built video projectors (see also digital cinema).
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).