- Fixed Frame Projection Screen
- Motorized Projection Screen
- Curved Frame Projection Screen
- Ultra Thin Frame Projection Screen
- Portable Projection Screen
- Projector Brackets
basics; a projector to match your magnetism
2003 everyone wants to make a good impression on the audience, whether the goal is to sell the product, make a point, or dazzle the audience with your talent.
One of the tools for success is to collect all your information and make a copy of Microsoft PowerPoint so that the number of slides is equivalent to your conversation.
Of course, such a display requires the digital equivalent of the projector.
If you only expect a few people, you can have them gather around your laptop and look at the screen.
But if you\'re talking to the crowd, you want to be able to project your presentation onto a big screen that everyone can see.
Then you need to connect your computer to a digital projector.
If the event is held in a hotel or conference center, there may be a projector for rent.
In most cases, there should be no problem connecting a rental device to a laptop or Mac, and some conference centers also provide technical assistance.
But if you do more than a few demos a year, there is a good reason to consider buying your own projector.
Advertising on the one hand, sometimes you have trouble getting your computer to use the rented equipment.
If you have your own house, you don\'t have to worry about whether there is a house for rent.
Advertising \"only 50% of conference rooms have projectors,\" says William cogel, founder of market research firm Pacific Media Associates, which specializes in large advertising. Screen display.
Rent is also expensive, with fees ranging from $175 to $500 per day.
Portable projectors start at less than $1,500 (
Although they can spend up to several times)
There is no need for a lot of demos to justify the investment.
There are also some side benefits to having a projector.
When you don\'t use it for a demo, you can connect it to a DVD player or VCR and use it to watch movies or TV shows at home.
You can even use it to play the game on the \"big screen\" because of my 16-year-
On New Year\'s Eve, the old son discovered this when he connected our borrowed Epson projector to his Nintendo and Sega console.
You may hear two techniques when you buy a projector: an LCD or an LCDC. D.
And digital light processing, or D. L. P.
Projector Using LC. D.
There are usually three glass plates (
Red, green, blue).
When the light passes through the panel, a single pixel or point that constitutes the image is turned on and off. D. L. P.
Technology developed by Texas Instruments uses thousands of micromirrors on a special chip to control the beam.
The color is produced by the color wheel that filters the light, moving between red, green and blue.
Every technology has its advocates and opponents. L. C. D.
Projectors are usually cheaper and therefore more popular.
They are generally better suited for spreadsheets and standard presentations involving static images.
Some people think D. L. P.
Better contrast of technology-
Black is darker-
People who plan to use the projector for video sometimes prefer it. But L. C. D.
The screen can handle movies and other video resources very well.
This is really a matter of personal preference.
Some people may not notice or care about the difference.
\"A large part of L. C. D.
The projector is only for PowerPoint presentations, he said.
Coggshall, \"This is not too harsh in terms of image quality.
Most things will be done regardless of L. C. D. or D. L. P.
Other considerations include brightness, resolution, weight, and connectivity.
Brightness is measured by lumens or ANSI lumens, which is the reference of the National Institute of Standards in the United States.
The bigger and brighter the room, the more lumens you need to get from the projector to make your presentation visible.
Stephenie Scanlon, executive vice president of audio-visual innovation, a distributor of projectors and other audio-visual equipment in Tampa, Florida.
, It is recommended to use a projector with a minimum rating of 750 lumens for small presentations with low ambient light and less than 100 of the audience. A 900-
Lumens projectors are suitable for small presentations with some ambient light, for example, in a standard meeting room you can dim your room. Ms.
Scanlon recommends using 1,700 lumens in conference rooms with high ambient light, in which case you may not be able to darken the room, and for some large venues with ambient light, 2,500 lumens are recommended.
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A user survey conducted by Pacific Media Associates shows that 2,000 lumens are enough for most conference room applications. Coggshall said.
Another important factor is local resolution.
Like any other computer monitor, the projector has a Level 1 resolution corresponding to the actual number of pixels in the device.
The most common native resolution is XGA (
1,024 by 768 pixels)
Although some only provide SVGA (800 by 600). SXGA (1,280 by 1,024)
Provides greater resolution while WXGA provides images of the 16:9 aspect ratio of cinemas and wide cinemasscreen TV.
SXGA, higher resolution (1,400 by 1,050)
Found on some newer projectors.
While you usually get the best image using the local resolution of the projector, if, for example, the resolution of the PC does not match the local resolution of the projector.
Almost all projectors will be connected to the VGA port of the computer.
But you may want other options as well, such as a composite video connector that can connect the projector to a VCR, DVD player, or other device.
Other options include S-
Video and Digital Video input can generate higher connections
High quality video on LC. D.
You can also find a remote control to control the projector and act as a mouse so you can control your computer from anywhere in the room.
More expensive units often have brighter bulbs (more lumens)
, Higher resolution and more connection options, as well as smaller and lighter.
They can also provide more remote control options.
Although not necessarily related to the price, the expected lamp life may be a factor in deciding which one to buy.
The price of the bulb is usually between $300 and $400, and the estimated life span is generally between 1,500 and 3,000 hours.
If you just use the machine once in a while for a demo, there\'s plenty of time.
But if you\'re also going to use it to watch movies at home, you might consider units with longer bulb life.
Weight may be an important factor.
Some portable projectors are smaller and lighter than laptops. Hewlett-
The HP digital projector sb21, which costs about $2,000, weighs just 2 lbs.
2 pounds, providing SVGA resolution, suitable for small situations.
Combine it with an ultra light laptop and you can easily carry the projection studio in a small briefcase.
Rated 800 ANSI lumens, the unit performs well in PowerPoint presentations and DVD movie tests in small meeting rooms and living rooms.
Infocus lp30 D for $2,899. L. P.
Projector offers 1,100 lumens, XGA resolution and 2,000-hour lamp life.
Like the HP projector, it is very compact (
Although a little heavy, but in 3 pounds.
The ad also tested a slightly heavier PowerLite 730c (4. 3 pounds)
More expensive ($3,199)
More powerful (2,000 lumens)
Epson units. This L. C. D.
The projector handles PowerPoint presentations, movies and video games brilliantly in a fairly large room with plenty of light.
If you don\'t need a very high resolution, the new 6 lbs if you\'re willing to carry a few more. 6-
The pound NEC VT460 provides enough projection capability at a lower price ($1,595)price. This 1,500-
The lumen projector has SVGA resolution (800 by 600), a 3,000-
Hour lamp life and all commonly used connectors for computers and audio-visual equipment.
NEC said the projector provides \"Automatic keystone correction\" to enable users to turn on the projector and get a square image immediately.
NEC also offers higher
Final version, VT 660 ($2,495)which has XGA (1,024 by 768)
Resolution and (1,700 lumens)brighter bulb.
Other companies in the field of projectors include creative, sharp, Sanyo, ViewSonic, Hitachi, Panasonic and Mitsubishi.
With computers and excellent digital projectors, you can shine on almost any object.
All you need now is an audience and something to say.
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A version of this article was printed on page G00007 of the National edition on February 6, 2003, with the title: basic knowledge;
A projector that matches your magnetic properties.