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  2. Rear-projection television - Wikipedia

    en.wikipedia.org/wiki/Rear-projection_television

    The projector uses a bright beam of light and a lens system to project the image to a much larger size. A front-projection television uses a projector that is separate from the screen and the projector is placed in front of the screen. The setup of a rear-projection television is in some ways similar to that of a traditional television.

  3. List of CRT video projectors - Wikipedia

    en.wikipedia.org/wiki/List_of_CRT_video_projectors

    Budget version of the 1000A [7] with smaller tubes also designed to work with a 6' lower gain more durable screen. Lower quality video electronics Lower quality video electronics Videobeam 750E

  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...

    With a projector, that's one more thing to add, and then one more remote to juggle. The Bomaker Polaris 4K projector: my hands-on review Confession time: I realized my home-theater dream last year ...

  6. Bluetooth - Wikipedia

    en.wikipedia.org/wiki/Bluetooth

    Bluetooth Low Energy uses 2 MHz spacing, which accommodates 40 channels. [26] Originally, Gaussian frequency-shift keying (GFSK) modulation was the only modulation scheme available. Since the introduction of Bluetooth 2.0+EDR, π/4-DQPSK (differential quadrature phase-shift keying) and 8-DPSK modulation may also be used between compatible devices.

  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 .