This allows a teacher, lecturer or presenter to write on a sheet of paper or to display a two or three-dimensional object while the audience watches. They are, in essence, high resolution web cams, mounted on arms so as to facilitate their placement over a page. Like an opaque projector, a document camera is able to magnify and project the images of actual, three-dimensional objects, as well as transparencies. ( Learn how and when to remove this template message)ĭocument cameras, also known as visual presenters, visualizers, digital overheads, or docucams, are real-time image capture devices for displaying an object to a large audience. ( May 2011) ( Learn how and when to remove this template message) Please help improve this article if you can. This article may require cleanup to meet Wikipedia's quality standards.
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