Yes, the fact that you need to have the space to project them and that people wont cause shadows by walking in front and both DLP and LCD both have disadvantages such as:
DLP:
-Can cause rainbow effect
LCD:
-Can cause screen door effect
A computer projector is a kind of an output device, used to display image on a projection screen. It receives a video signal from computer and projects an image using a lens system.Main types of computer projectors are:LCD projectors,DLP projectors,LED projectorsHybrid ( LED and Laser diode) projectors.
True
The price
disadvantages of seminars and workshops
Home Theatre Video Projectors are able to play with mobile USB devices the same way a jump drive or flash drive transfers data to a laptop or desktop. USB connections from a mobile device to a HTVP units allow for use of the mobile device as though it were a portable hard drive.
There are currently more predominantly positive to negative reviews of dlp projectors. These two sites can be of assistance: www.projectorcentral.com, and www.projectorreviews.com.
Dirty Projectors was created in 2002.
Infocus projectors are made for the office, home, classroom, and for all presentation needs. Infocus projectors can also be useful in churches and the courtroom. The projectors are for presentation purposes.
LCD projectors are by far the best
Most projectors have the means to be a rear and front projection system. The only projectors that are unable to do this are the cheaper projectors you find at Office Depot used for powerpoint shows.
NEC's multimedia projectors cost from $310 to about $5,000. They also make cinema projectors which are even more expensive.
I haven't seen a retro school projectors on the market today but, If you really like the old school projectors you can get some restored projectors for a good price. anonymous@oola.com
Staples offers several styles and brands of LCD projectors online. They also carry DLP projectors which is a newer technology.
Gulliver thinks the political projectors are boring and out of their minds.
LCD projectors and DLP projectors
Some lower-output projectors (and all of the new so-called 'nano' projectors) use LED's for their light source. Most higher-output projectors use incandescent halogen or HID lamps for the light source.
You can find cheap projectors at many places online. Some of these places are www.bigboxstore.com/computers/projectors and www.nextag.com/cheap-projector/compare-html.