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2. These Bestselling Projectors Are Up to $250 Off for Prime Day

   www.aol.com/entertainment/bestselling-projectors...

   If you’re projector-shopping, be prepared to go down a deep rabbit hole indeed. Our cursory search on Amazon showed over 2,000 results. … These Bestselling Projectors Are Up to $250 Off for ...

3. The Best Prime Day Sales on Home Entertainment: Record ... - AOL

   www.aol.com/best-prime-day-sales-home-141514010.html

   Movie night just got a major glow-up. For Prime Day, Amazon just released dozens of unbeatable deals on everything from projectors and TV sets, to sound bars and speakers, that will make watching ...

4. Amazon's bestselling mini digital projectors are on sale—save ...

   www.aol.com/lifestyle/amazons-bestselling-mini...

   This Nebula by Anker Mars II Pro is pretty amazing. This mini projector can throw video images onto a wall or projection screen up to 150 inches, while its video quality is sharper and brighter ...

5. 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 ...

6. Planetarium projector - Wikipedia

   en.wikipedia.org/wiki/Planetarium_projector

   A planetarium projector, also known as a star projector, is a device used to project images of celestial objects onto the dome in a planetarium. Modern planetarium projectors were first designed and built by the Carl Zeiss Jena company in Germany between 1923 and 1925, and have since grown more complex.

7. Movie projector - Wikipedia

   en.wikipedia.org/wiki/Movie_projector

   A movie projector (or film projector) is an opto-mechanical device for displaying motion picture film by projecting it onto a screen. Most of the optical and mechanical elements, except for the illumination and sound devices, are present in movie cameras. Modern movie projectors are specially built video projectors (see also digital cinema).