A projector or image projector is an optical device that projects an image (or moving images) onto a surface, commonly a projection screen. Most projectors create an image by shining a light through a small transparent lens, but some newer types of projectors can project the image directly, by using lasers.
Before buying a projector, you should buy a projector keeping in mind many things including the type of projector, the method of the projector, technology, resolution, lumens.
What type of projectors should I buy?
Multimedia projectors are widely used for multimedia presentations in classrooms, offices, and meetings. Nowadays multimedia projectors are also known as data projectors, digital projectors, and video projectors.
Overhead projectors are mainly used in the classroom. Overhead projectors are very easy to use and do not require much skill to operate.
Mini projectors have become popular for their low cost and ease of use. These projectors also have wireless streaming and features like watching TV.
The short-throw projector can project from 3 to 8 feet distance. This can be used in a small space.
A 3D projector is used to display a three-dimensional or 3D object on a 2D surface. 3D objects are mainly displayed for graphical design elements, engineering drawings, drafts, and computer graphics.