enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Projection screen - Wikipedia

   en.wikipedia.org/wiki/Projection_screen

   Electric screens can be wall-mounted, ceiling-mounted or ceiling recessed. These are often larger screens, though electric screens are available for home theater use as well. 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.

3. Ceiling projector - Wikipedia

   en.wikipedia.org/wiki/Ceiling_projector

   The ceiling projector or cloud searchlight is used to measure the height of the base of clouds (called the ceiling) above the ground. It is used in conjunction with an alidade, usually positioned 1000 ft (300 m) away and wherever possible set at the same level. The projector is normally set at 90°, although 71° 31' may be used, in relation to ...

4. List of CRT video projectors - Wikipedia

   en.wikipedia.org/wiki/List_of_CRT_video_projectors

   72 inch fixed screen projector with two projector lenses with crt three tubes. 30 fL on screen brightness. ... picture and could be ceiling mounted. Novabeam Model ...

5. Get a Cinematic Experience from Your Sofa with These ... - AOL

   www.aol.com/cinematic-experience-sofa-projectors...

   Best Room-to-Room Projector: Hisense C1 4K Laser Mini Projector. Best for Film Buffs: ... though it’s best suited to a permanent ceiling mount or stationed on a flat surface. It has a manual ...

6. Overhead projector - Wikipedia

   en.wikipedia.org/wiki/Overhead_projector

   In contrast, a modern LCD or DLP projector often uses an Ultra-high-performance lamp which has a higher luminous efficacy and lasts for thousands of hours. [5] A drawback of that technology is the warm up time required for such lamps. Older overhead projectors used a tubular quartz bulb which was mounted above a bowl-shaped polished reflector.

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 .