AV Technology - October 2008 - (Page 48)

avassets product spotlight WHO MAKES THEM AVERMEDIA DIGITAL MULTIMEDIA: www.aver.com CANON: www.usa.canon.com CASIO: www.casio.com CLEARONE COMMUNICATIONS: www.clearone.com DUKANE AUDIOVISUAL: www.dukane.com ELMO MANUFACTURING: www.elmousa.com EPSON: www.epson.com LUMENS: www.lumens.com.tw QOMO: www.qomo.com SAMSUNG: www.samsungpresenter.com TOSHIBA: www.toshiba.com VADDIO: www.vaddio.com WOLFVISION: www.wolfvision.com ute captured images easily or add them to electronic presentations. Document Cameras D ocument cameras (also knows as digital presenters and visualizers) are wonderful tools that allow you to show detailed drawings, 3-D renderings, photos, and much more in many settings, including formal presentations, training seminars, court hearings, and videoconferences. Whether you’re using a document camera in a classroom to demonstrate an intricate biology project or in the boardroom to show new product designs, you have the power to focus the audience’s attention on nearly anything. No more transparencies, no more oversized sketches taped to a wall. A document camera lets you show all of those items that don’t fit neatly into an electronic presentation. What is a document camera? Think of a document camera as a 21st century overhead projector sort of. It looks and acts somewhat like an overhead projector. However, unlike traditional overhead projectors that use mirrors and light tables, document cameras use a high-resolution video camera for display. In order to see the image, you’ll still need a multimedia pro- jector, flat panel display, or computer screen. So, begin with a basic “overhead projector,” add in the capabilities of a scanner, microscope, whiteboard, and computer, and you understand the power of a fully featured document camera. ZOOM The zoom feature on a document camera is truly a great benefit. You can zoom on all sorts of text, graphics, and objects. As a rule, document cameras can easily read small 8-point text, and they are ideal for displaying 3-D objects. You can literally take something as small as a penny and enlarge it so the tiniest features (nearly invisible to the naked eye) are projected and visible to an audience. IMAGE CAPTURE Of course, document cameras allow you to display documents in real-time. However, they also allow you to capture images just as you would with a scanner or digital camera. This means you can capture images, save them as JPEGs, and retrieve them later. You can distrib- OTHER ADVANCED FEATURES Some document cameras also come with advanced features such as wireless remote control, one-touch freeze function for seamless transitions between document changes, onscreen display menus for easy control of the unit, multiple inputs for seamless transitions between two applications, and built-in USB and RS-232 interfaces. TIPS FOR PURCHASING A DOCUMENT CAMERA If and when you decide a document camera may make sense for you to purchase, try to consider the following three items: image quality, color reproduction, and zoom capability. Image quality is a function of CCD and resolution. CCD refers to the display technology of the document camera. Resolution, of course, refers to the amount of pixels displayed. As a general rule — the more expensive the document camera, the better the image quality. Lower priced cameras usually provide 800x600 resolution, and premium cameras can provide up to 1024x768 resolution. Before purchasing a document camera, it is wise to consult with everyone who will use it to determine his or her resolution needs. All document cameras provide decent color www.avtechnologyonline.com 48 | AV TECHNOLOGY | october 2008 http://www.aver.com http://www.usa.canon.com http://www.casio.com http://www.clearone.com http://www.dukane.com http://www.elmousa.com http://www.epson.com http://www.lumens.com.tw http://www.qomo.com http://www.samsungpresenter.com http://www.toshiba.com http://www.vaddio.com http://www.wolfvision.com http://www.avtechnologyonline.com

Table of Contents Feed for the Digital Edition of AV Technology - October 2008

AV Technology - October 2008 Contents Precedent Corporate: Residential AV Does Not Equal Commercial AV Government: Funding Problems? Education: DIY ISP.EDU, Part Two The Cost of Bandwidth Star Grounding Wars Understanding IoIP How to Equip a Smart Classroom Two Rooms With A View From Primitive to Professional Product Review:�Visionary Solutions AVN 420 Encoder Product Spotlight: Document Cameras New Products Ad Index AV MO: Using Infrared Microphones

AV Technology - October 2008

For optimal viewing of this digital publication, please enable JavaScript and then refresh the page. If you would like to try to load the digital publication without using Flash Player detection, please click here.