Computer and Electronic Articles
Articles with Information on Computers and Electronics
Featured Articles
    Computer applications
Office Products
    CD-R, DVD-R, Blank Media
    Copiers & Copier Supplies
    Fax Machines & Supplies
    Microfilm & Microfiche
    Office Equipment
    Office Furniture
    Presentation, AV, Projectors
    Shredders
    Supplies & Small Equipment
    Trade Show Displays
    Other Office Products
    Wholesale Lots
Apple Computers & Components
    Apple Accessories
    Apple Components
    Apple Desktops
    Apple Laptops & Notebooks
    Apple Networking
    Apple Printers, Scanners & Ink
    Vintage Apple
    Wholesale Lots
    Other
Computers
    Acer
    Alienware
    Asus
    Dell
    Gateway
    HP, Compaq
    IBM, Lenovo
    Sony
    Whitebox, Custom Systems
Printers
Printer Supplies & Accessories
    Cleaning, Repair Kits
    Feeders, Trays
    Ink Cartridges
    Ink Refill Kits
    Ink Ribbons
    Laser Drum Cartridges, Fusers
    Laser Toner
    Power Supplies
    Print Heads
    Printer Memory
    Printer Paper
    Sign Vinyl
    Other
Retail Equipment & Supplies
    Beauty & Salon Equipment
    Labeling & Tagging Supplies
    Mannequins & Dress Forms
    Racks & Fixtures
    Security & Surveillance
    Shopping Carts & Baskets
    Other
Plastics
    Auxiliary Process Equipment
    Injection, Blow Molding
    Molds, Dies
    Raw Materials & Scrap
    Other Items
Manufacturing & Metalworking
    Manufacturing Equipment
    Metalworking Equipment
    Metalworking Tooling, Supplies
    Process Equipment
    Metals & Alloys
    Semiconductor & PCB Equipment
    Textile & Apparel Equipment
    Welding
    Woodworking
    Other
Industrial Equipment, MRO
    Adhesives & Sealant
    Cleaning Equipment & Supplies
    Commercial Radios
    Compressors
    Fasteners & Hardware
    Forklifts & Other Lifts
    Forklift Parts & Accessories
    Government & Public Safety
    HVAC
    Hydraulics & Pneumatics
    Lighting & Lasers
    Industrial Automation, Control
    Manuals, Books
    Forklifts & Material Handling
    Painting Equipment & Supplies
    Motors, Transmissions
    Professional Tools & Hardware
    Pumps & Plumbing
    Pumps
    Safety & Security
    Wholesale Lots
    Other
Construction
    Building Materials, Supplies
    Buildings, Modular & Pre-Fab
    Construction Equipment

Office Products

Presentation, AV, Projectors

Presentation, AV, Projectors Article

takes a video signal and projects the corresponding image on a projection screen using a lens system. All video projectors use a very bright light to project the image, and most modern ones can correct any curves, blurriness, and other inconsistencies through manual settings. Video projectors are widely used for conference room presentations, classroom training, and home theatre applications.

A video projector may also be built into a cabinet with a rear-projection screen (rear-projection TV, or RPTV) to form a single unified display device, now popular for .home theater. applications.

Common display resolutions for a portable projector include SVGA (800×00 pixels), XGA (1024×68 pixels), 720p (1280×20 pixels), and 1080p (1920×080 pixels).

The cost of a device is not only determined by its resolution, but also by its light output, acoustic noise output, contrast, and other characteristics. While most modern projectors provide sufficient light for a small screen at night or under controlled lighting such as in a basement with no windows, a projector with a higher light output (measured in lumens, abbreviated .lm.) is required for a larger screen or a room with a higher amount of ambient light. A rating of 1000 to 1500 ANSI lumens or lower is suitable for smaller screens with controlled lighting or low ambient light. Between 1500 and 3000 lm is suitable for medium-sized screens with some ambient light or dimmed light. Over 3000 lm is appropriate for very large screens in a large room with no lighting control (for example, a conference room). Projected image size is important; because the total amount of light does not change, as size increases, brightness decreases. Image sizes are typically measured in linear terms, diagonally, obscuring the fact that larger images require much more light (proportional to the image area, not just the length of a side). Increasing the diagonal measure of the image by 25 % reduces the image brightness by 35 per cent; an increase of 41 per cent reduces brightness by half.

Presentation, AV, Projectors Items

1 2 3 4 5 6 7 8 9

Search:  
NEW Siig - Cyber I/O PCI Serial Parallel Combo Adapter
$50.24
80" 16:9 High Gain High Contrast Projector Screen White
$129.99
Eiko Overhead Projector Bulb 410W 82V
$5.75
SAMSUNG SV-300W PAL Converter Video MultiSystem f Parts
$39.95
56 EXPO DRY ERASE MARKERS Vivid Colors!
$24.99
New APOLLO 70x70 TRIPOD PROJECTION SCREEN VPT7070 Black
$34.99
DA-LITE DELUXE PROJECT-O-STAND PROJECTOR STAND 425 NEW
$169.99
NEW 3M Overhead Projector Closed Head 2200 Lumens E...
$134.99
30W Megaphone:Safety Siren:Music:Speaker Mic.- Bullhorn
$15.68
Transparency Film laser Apollo 8.5 x 11, B & W
$0.99
NEW PORTABLE 10 WATT HANDHELD MINI MEGAPHONE LOUD SIREN
$11.90
Panasonic Panaboard Electronic Dry Erase Board KX-BP535
$299.99
NEW Acco QUARTET 50x50" TRIPOD PROJECTION SCREEN 550S
$34.99
NEW Siig - Cyber 2S1P Plus PCI JJ-P21012-S6
$58.99
AVerMedia AVerVision 300i Digital Document Camera GREAT
$357.99
NEW Draper AccuScreens Precision Mounts APM3655WTRE ...
$218.99
3M 1706 Overhead Projector *NEW BULB* Great for Murals
$39.95
NEW Draper 8" Extension 800302
$11.24
Dry Erase Markers
$2.24
90" 4:3 High-Gain Electric Projector Screen Top Line
$263.98
ELMO HP-L3550H HP-L355 PORTABLE OVERHEAD PROJECTOR
$24.95
ELMO OMNIGRAPHIC 550 XENON AF SLIDE PROJECTOR #
$550.00
3M 9100 FOLDING OVERHEAD PROJECTOR *2 BULBS *2800 LUMEN
$45.00
NEW BRIEFCASE SZ BAG AVAIL SEPARATE LAMPCHANGER FNT ...
$424.99
PORTABLE 25 WATT MEGAPHONE w/LOUD SIREN w/MICROPHONE
$23.90
NEW ELECTRIC MOTORIZED PROJECTOR SCREEN 106" 4:3 NR!
$46.99
NEW Startech 1 Port CardBus/PCMCIA to PCI Adapter
$28.24
NEW Draper AccuScreens APM Fixed Projector Mount 800301
$46.24
NEW Draper AccuScreens Precision Mounts APM1024WF Fl...
$20.24
NEW 30 WATT MEGAPHONE BULLHORN HORN SPEAKER SIREN MUSIC
$15.68
10W Megaphone / Bullhorn Music & Speaker Mic. -BULLHORN
$9.41
NEW 3M Overhead projector 1711 - Overhead projector ...
$133.99
200 sheet Xerox Laser Transparency white stripe 3R4445
$9.99
Lot of 5 Boxes HP Premium inkjet Transparency Film
$16.49
Telescoping Chrome Pen Size Pointer With Pocket Clip
$8.95
NEW Draper AccuScreens Precision Mounts APM3655WT Fl...
$56.24
10W Megaphone / Bullhorn Music & Speaker Mic. -BULLHORN
$9.41
Epson Powerlite 62c/82c Projector
$375.00
3M MODEL 9200 OVERHEAD PROJECTOR
$24.95
BUHL 2963 Overhead Projector
$0.99
36" x 48" ALUMINUM FRAMED DRY ERASE BOARD WITH TRAY NEW
$31.00
NEW Draper 15-3/4" Extension 800303
$19.24
PEGASUS - PC7005 Compact Overhead Projector 4000 Lumens
$71.00
New Apollo Portable 4000 Lumens Overhead Projector
$129.99
Elmo TT-02U Digital Visual Presenter Document Camera NR
$258.00
NEW Draper AccuScreens Precision Mounts APM2537WTRE ...
$126.99
NEW ELECTRIC MOTORIZED PROJECTOR SCREEN 150" 16:9 NR!
$289.00
Canon RE-552 Video Visualizer
$9.99
NAME BADGE LABELS 3.375" X 2.33" LABEL :313806
$14.28
HISONIC HS210 UHF 32 CH 20W PORTABLE PA + WIRELESS MICS
$159.95
NEW Draper AccuScreens Precision Mounts APM3655WF Fl...
$47.24
NEW EIKI Overhead Classroom Transparency Projector
$47.99
NEW ELECTRIC MOTORIZED PROJECTOR SCREEN 84" 16:9 NR!
$149.99
NEW ELECTRIC MOTORIZED PROJECTOR SCREEN 150" 4:3 NR!
$269.00
72 Fixed Projector Screen Silver Frame 16:9 Gray Fabri
$147.98
DA-LITE 96x96 WALL MOUNT MANUAL PROJECTOR SCREEN DALITE
$155.20
PEN STYLE TELESCOPING VINTAGE STEEL POINTER SQUIBB WOW!
$9.99
Elmo HP-L3550H Overhead Projector w/ 2 Lamps 2900 Lumen
$34.99
Brand New Color Frames Laser Transparencies
$0.99
OVERHEAD PROJECTOR PORTABLE BRIEFCASE TYPE
$165.00
10W Megaphone / Bullhorn Music & Speaker Mic. -BULLHORN
$9.41
50" Plasma HEAVY DUTY ATA Case w/BUILT IN STAND/WHEELS
$599.00
Tour Guide's Portable PA Voice Amplifier w/ Microphone
$49.95
NEW ELECTRIC MOTORIZED PROJECTOR SCREEN 84" 4:3 NR!
$31.00
Teacher Auctioneer USED Lectern Podium Lecturn & Case
$26.95
135" 1:1 Square Manual Pull Down Projector Screen
$111.98
NEW Draper AccuScreens Precision Mounts APM1024WTR F...
$23.24
NEW Draper AccuScreens Precision Mounts APM1024WTRE ...
$42.24
Adjustable Black Aluminum Tripod Easel - LIKE NEW!
$9.99
Nice Lot Of (2) Dry Erase Boards Office Presentation
$29.99
OVERHEAD ART OPAQUE PROJECTOR EPISCOPE ENLARGE PICTURE
$39.95
NEW Draper 23-1/2" Extension 800304
$22.24
3M 9100 FOLDING OVERHEAD PROJECTOR *2 BULBS *2800 LUMEN
$49.00
~* ELMO O/H OVERHEAD HP-L355 PROJECTOR - GREAT ! *~
$24.99
NEW Acco QUARTET 50x50" TRIPOD PROJECTION SCREEN 550S
$34.99
16:9 fixed projection screen with smooth black trim new
$349.99
42" Plasma HEAVY DUTY ATA Case w/BUILT IN STAND/WHEELS
$599.00
NEW Elite Screens 6" L Bracket ZVMAXLB6-W
$21.24
RADIUS VIDEOVISION TELECAST APPLE MAC VIDEO EDITOR
$74.99
InFocus Model LP425Z projector
$20.00
New APOLLO 60x60 TRIPOD PROJECTION SCREEN VPT6060 Black
$34.99
3M 1730 OVERHEAD PROJECTOR NEW LAMP,TRANSPARENCY HOLDER
$34.99
Canon Video Visualizer RE-350 Presenter Document Camera
$66.00
QUARTET ULTIMA 101EL DRY ERASE PRESENTATION EASEL NEW
$70.00
3M 1830 Overhead Projector NEW IN BOX Complete + Sealed
$169.99
C811A- 3M 9100 Overhead Projector
$0.99
APOLLO Overhead Projector * NEW BULB * Great for Murals
$29.95
Reply IQ Fleetwood Wireless Audience Classroom Response
$7500.00
Canon RE-650 MK11 Video Visualizer
$13.01
NEW Startech - PCI2S1P Serial/Parallel Combo Adapter
$36.24
NEW Draper AccuScreens Precision Mounts APM2537WF Fl...
$33.24
NEW Draper TH T 600 Table Stand For Plasma Displays
$357.99
3M MODEL 9100 OVERHEAD PROJECTOR 2800 LUMENS
$39.95
3M 2000AG 2000 AG PORTABLE OVERHEAD PROJECTOR
$69.99
120" 4:3 Electric Motorized Projector Screen Gray
$325.98
NEW Draper AccuScreens Precision Mounts APM2537WT Fl...
$50.24
Hammermill Premium Inkjet Transparency Film 1000 sht
$99.00
3M Overhead Projector
$20.00
3M BUHL 2660 PORTABLE OVERHEAD PROJECTOR 2500 LUMEN NEW
$140.00