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2. Advent Video Beam Television - Wikipedia

   en.wikipedia.org/wiki/Advent_Video_Beam_Television

   Both picture and sound are projected from the television's projector base towards a curved screen, where they are reflected back towards the viewer. It is a plug-and-play system, which means it has few adjustments, to make it easier to install. [1] In 1978, its advertised sale price was $3,000. [2]

3. LCD projector - Wikipedia

   en.wikipedia.org/wiki/LCD_projector

   A projector's throw ratio is used when installing projectors to control the size of the projected display. [1] For example, if the throw ratio is 2:1 and the projector is fourteen feet away from the screen, then the display width will be seven feet.

4. AOL Mail

   mail.aol.com

   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

5. Projection screen - Wikipedia

   en.wikipedia.org/wiki/Projection_screen

   Electric screens are similar to pull-down screens, but instead of the screen being pulled down manually, an electric motor raises and lowers the screen. Electric screens are usually raised or lowered using either a remote control or wall-mounted switch, although some projectors are equipped with an interface that connects to the screen and ...

6. Laser-powered phosphor display - Wikipedia

   en.wikipedia.org/wiki/Laser-powered_phosphor_display

   Also, the collisions of the laser photons with the phosphor screen do not produce x-rays as a side effect, whereas electrons colliding with a screen in a vacuum do produce x-rays, requiring radiation shielding in a CRT (said shielding taking the form of leaded glass in most CRTs produced since the early 1980s) but not in a LPD.

7. Projector - Wikipedia

   en.wikipedia.org/wiki/Projector

   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. A virtual retinal display, or retinal ...