(informal, jargon, chiefly Europe) A device that can project an image through a lens onto a screen with light from a DVD player, television or video recorder.
1998, Wilhelm Grießhaber, “Multimedia in Computer-Assisted Language Learningâ€, in Aspects of Modern Language Teaching in Europe, Routledge, ISBN 0415172845, page 52:Furthermore, the teacher’s computer should be equipped with loudspeakers or powered speakers and ... an LCD-panel with overhead projector or beamer.
The plan can be projected on to a white board, by photocopying it on to a transparency and using an overhead projector, ... or by using a beamer (data projector).
2005, S. Borkowski et al., “Spatial Control of Interactive Surfacesâ€, in Engineering Human Computer Interaction And Interactive Systems, Springer, ISBN 3540260978, page 234:The orientation of a surface with respect to the beamer is used to calculate a pre-warp that is applied to the projected image.
