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Qu'est-ce (qui) est overhead projector - définition

DEVICE THAT PROJECTS A TRANSPARENT IMAGE

Overhead Projector; Transparency projector; Overhead projectors

overhead projector

¦ noun a device that projects an enlarged image of a transparency by means of an overhead mirror.

overhead projector

(overhead projectors)

An overhead projector is a machine that has a light inside it and makes the writing or pictures on a sheet of plastic appear on a screen or wall. The abbreviation OHP
is also used.

N-COUNT

viewgraph

THIN SHEET OF TRANSPARENT FLEXIBLE MATERIAL TO PLACE ON OVERHEAD PROJECTORS

Transparencies; Transparency (overhead projector); Viewgraph; Viewfoil

¦ noun a graph or other data produced as a transparency for projection on to a screen or for transmission during a teleconference.

Wikipédia

Overhead projector

An overhead projector (often abbreviated to OHP), like a film or slide projector, uses light to project an enlarged image on a screen, allowing the view of a small document or picture to be shared with a large audience.

In the overhead projector, the source of the image is a page-sized sheet of transparent plastic film (also known as "foils" or "transparencies") with the image to be projected either printed or hand-written/drawn. These are placed on the glass platen of the projector, which has a light source below it and a projecting mirror and lens assembly above it (hence, "overhead"). They were widely used in education and business before the advent of video projectors.

https://en.wikipedia.org/wiki/Overhead projector

Exemples du corpus de texte pour overhead projector

1. So he hit Barack Obama where it hurts: in the overhead projector.

2. Yes, boring slides were plentiful in the pre–PowerPoint era –– remember the overhead projector?

3. Prosecutors grilled Hussein about yellowing death warrants and identification cards displayed on an overhead projector.

4. The auction works like this: The plates are displayed at the headquarters of the traffic division a week prior to the sale, and during the auction they are displayed on an overhead projector, open for bidding.

5. The Republican candidate answered by accusing Obama of voting for "$3 million for an overhead projector at a planetarium in Chicago." Minutes later, another questioner at the town–hall–style debate asked what sacrifices would be required to restore the American dream.