8 Okt 1950 Jahr - OHP Projector
Beschreibung:
An overhead projector, like a film or slide projector, uses light to project an enlarged image on a screen. In the overhead projector, the source of the image is a page-sized sheet of transparent plastic film with the image to be projected either printed or hand-written/drawn.
Zugefügt zum Band der Zeit:
Electronic Period
Datum:
Abbildungen:
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