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overhead projector
/ˌoʊvɚhˈɛd pɹədʒˈɛktɚ/
/ˌəʊvəhˈɛd pɹədʒˈɛktə/
Overhead projector
01
a device that projects images or text from a transparency onto a screen or wall
What is an "overhead projector"?
An overhead projector is a device that displays images, text, or diagrams onto a surface, such as a wall or projection screen, by shining light through transparent sheets. It is commonly used in classrooms, meetings, and presentations. The user places a transparent sheet with written or printed content on the projector’s glass surface, and the image is magnified and shown to the audience. Overhead projectors are often used for teaching or displaying visual information to a group, offering a simple way to share content in real time.
Example
The teacher used an overhead projector to display the lesson notes to the class.
The presenter set up the overhead projector for the business meeting to showcase the sales figures.
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