Projectors can produce a larger image at a much lower cost than a different display technology of the same size (lcd, led, plamsa, etc...)
There are a few different advantages to using a digital projector over a large screen television. Some of the advantages are better color, better picture, and sharper images. However, digital projectors are more expensive than large screen televisions.
Overhead projectors offer several advantages, including ease of use and immediate visibility of materials, allowing for real-time annotation and interaction during presentations. They are compatible with various types of transparencies, making it simple to display and share information. Additionally, they require minimal setup and maintenance compared to digital projectors, making them a practical choice for many educational and business settings. Their simplicity can enhance engagement, particularly in environments where technology may be limited.
LCDs will take much longer to burn out and usualy are compatible with DVD presentations.
Posters are large visual aids. People will look at posters when they go to a movie, stand in line at a restaurant, wait on a concert to start. There are many advantages of advertising with posters.
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.
Projectors can produce a larger image at a much lower cost than a different display technology of the same size (lcd, led, plamsa, etc...)
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.