are able to magnify and project the images of actual, three-dimensional objects, as well as transparencies. 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. Theoretically, all objects can be displayed by a document camera. Most objects are simply placed under the camera. The camera takes the picture which in turn produces a live picture using a projector.
Document cameras are useful in a number of applications:Education: Display educational materials including text books,homework, 3D objects, slides, film negatives, etc. Ability to record (via USB connection to computer) live video of class activities such as a frog dissection for playback at a later time.Scientific Research: Display samples, paper, slides, and transparencies.Medical Industry: Show X-rays, 3D objects such as bones or tissue samples.Legal Field: Display evidence and documentations, compare items side by side.Corporate: View products, prototypes and training materialsMilitary: Maps, photos, flowcharts, plans, 3D objects, training materials, etc.Video Conferencing: Share documents, 3D objects, files, CAD-CAM drawings and blueprints with remote attendees.