Document Camera

A document camera is also known by many other names and these include: image presenters, visual presenters, digital visualizers, digital overheads, docucams. They are basically a device that captures real-time images and can display an object to a large audience. A document camera works very much like an opaque projector and will magnify not only three-dimensional objects, but also transparent ones. A document camera will usually be mounted onto a set of arms which allows it to be placed over a page. This form of high-resolution Web Cam can allow the user to display either two or three dimensional objects or even to write on a sheet of paper while the audience is watching.

The most common use of document cameras is for scientific presentations or in the classroom. However to work properly it must be connected to either a video projector or TV monitor. Document cameras have pretty much replaced overhead projectors which had previously been used for this specific purpose. You’re able to zero in on small print in books and project far larger images via the camera. Unlike overhead projectors, you no longer need to turn off the lights to use this device. The majority of document cameras will be able to send a video signal to a computer via the use of a USB cable. Rather than connecting a document camera to standard screen you are able to connect it to an interactive whiteboard.

Some document cameras will come with certain accessories which will enable you to use a microscope. They also have an auto focus and auto tuner function which will allow you to focus the lens for extremely sharp images and will also adjust to ambient light and therefore is able to produce a great image. Document cameras may also come with a remote control and even a rotating gooseneck arm which allows you to capture images from many different angles. They also have a freeze and zoom function as well as a 20,000 hour bulb life. A document camera will produce an analogue output to a TV or VCR and a DVI output to a computer that has a projector. The USB output will literally transfer images directly from the camera straight to a computer. You are then able to save and edit this once it is on your computer’s hard drive.

Document cameras have fast become an essential tool for any teacher and can be found in many classrooms. Although these fantastic devices are far more expensive than the old-style overhead projectors, they are considered an exceptional asset to help students visualize exactly what they are learning. The student will automatically have a better view of the information that is being presented to them. Document cameras are not merely used in the classroom to relay information, and have also often been used for time management. If you have a large class that is either working independently from each other or in numerous groups, you can use the camera to display a large timer that the whole classroom can see.

Document cameras are also compatible with many forms of modern day technology. You can use them along with computers, projectors and scanners. They will vary in cost depending on the make and model you choose, but on average you can expect to pay from $700 up to $3000. Many schools make use of document cameras to help the environment. They will definitely cut down on the amount of paper handouts that are needed as all of the information is readily available to the whole classroom.

The most popular uses for a document camera in a class environment include:

  • A demonstration that will show students exactly how to complete the work they have been assigned
  • By the use of colors and three dimensions, this will make many maths examples far easier to visualize
  • The opportunity to provide immediate feedback by displaying a student’s work
  • The freeze-frame facility can be used for numerous teaching purposes such as freezing a problem until the students have worked out the answers
  • A document camera allows you to zoom in whilst reading certain text and allows you to point out certain topics
  • They are also used with lined paper which allows a student to directly write on a straight line, or a more common use, for reading and writing music

There are literally hundreds of uses for a document camera, all of which are designed to make your life easier. It is now estimated that 1 in 10 classrooms make use of a document camera.

This Document Camera Review is Written/Updated on May 7th, 2011 and filed under Consumer Electronics. Both comments and pings are currently closed.

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