Film projector
device · 1895 · Electric age
Projects film frames onto a screen.
What it is made of
- Geneva drive — has part. Intermittent advance of the film.
- Lens — has part. A projection lens.
- Incandescent light bulb — has part. The light source (formerly an arc).
Principles and materials it uses
- Steel — is made of. The mechanism is steel.
- Photographic film — uses. It shows film.
History: what it evolved from and what it influenced
- Magic lantern — evolved from. Projecting images from a transparent medium.
- Digital projector — evolved into. Digital projection.