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2. Cinerama - Wikipedia

   en.wikipedia.org/wiki/Cinerama

   Cinerama. Original Cinerama screen in the Bellevue Cinerama, Amsterdam (1965—2005) 17-meter curved screen removed in 1978 for 15-meter normal screen. [ 1] Cinerama is a widescreen process that originally projected images simultaneously from three synchronized 35mm projectors onto a huge, deeply curved screen, subtending 146-degrees of arc.

3. RCA Photophone - Wikipedia

   en.wikipedia.org/wiki/RCA_Photophone

   RCA Photophone was an optical sound, "variable-area" film exposure system, in which the modulated area (width) corresponded to the waveform of the audio signal. The three other major technologies were the Warner Bros. Vitaphone sound-on-disc system, as well as two "variable-density" sound-on-film systems, Lee De Forest 's Phonofilm, and Fox ...

4. CRT projector - Wikipedia

   en.wikipedia.org/wiki/CRT_projector

   A Zenith 1200 CRT Projector based home theater. Visible extending from the ceiling are three lenses, one each for red, green and blue Black and white CRT projector. A CRT projector is a video projector that uses a small, high-brightness cathode ray tube (CRT) as the image generating element. The image is then focused and enlarged onto a screen ...

5. I tried the Bomaker Polaris 4K projector — and it's a ...

   www.aol.com/entertainment/tried-bomaker-polaris...

   The Bomaker Polaris 4K projector: my hands-on review Confession time: I realized my home-theater dream last year with a UST projector from Vava. It's been pretty great, but I was eager to see how ...

6. Rear-projection television - Wikipedia

   en.wikipedia.org/wiki/Rear-projection_television

   Rear-projection television ( RPTV) is a type of large-screen television display technology. Until approximately 2006, most of the relatively affordable consumer large screen TVs up to 100 in (250 cm) used rear-projection technology. A variation is a video projector, using similar technology, which projects onto a screen .

7. LCD projector - Wikipedia

   en.wikipedia.org/wiki/LCD_projector

   LCD projector. An LCD projector is a type of video projector for displaying video, images or computer data on a screen or other flat surface. It is a modern equivalent of the slide projector or overhead projector. To display images, LCD ( liquid-crystal display) projectors typically send light from a metal-halide lamp through a prism or series ...