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

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

   A 100-inch projector screen can cost you anywhere from $20 on up to $200 depending ... and it's bright enough to be seen clearly even during daylight hours — though obviously it's best when the ...

3. Projection clock - Wikipedia

   en.wikipedia.org/wiki/Projection_clock

   A projection clock (also called ceiling clock) is an analogue or digital clock equipped with a projector that creates an enlarged image of the clock face or display on any surface usable as a projection screen, most often the ceiling. [1] The clock can be placed almost anywhere if only the projected image must be seen.

4. We Tried the Best Projectors for Every Budget and Viewing ...

   www.aol.com/tried-best-projectors-every-budget...

   Many of us think about buying a projector without acting on it. It would be so nice, we imagine, to have a nifty, relatively small device with which to watch any movie or show at any size we wish ...

5. Projection screen - Wikipedia

   en.wikipedia.org/wiki/Projection_screen

   Projection screen in a movie theater. Home theater projection screen displaying a high-definition television image. A projection screen is an installation consisting of a surface and a support structure used for displaying a projected image for the view of an audience. Projection screens may be permanently installed on a wall, as in a movie ...

6. PEL sector light - Wikipedia

   en.wikipedia.org/wiki/PEL_sector_light

   PEL sector light. The PEL sector light is a projector style marine beacon which is used to guide maritime vessels. It does this by projecting a colored sector out to sea with very sharp color changes as the mariner transitions from one sector to the next. Typical PEL sector lights will have a complete color change over 1 meter (sideways ...

7. Color rendering index - Wikipedia

   en.wikipedia.org/wiki/Color_rendering_index

   Researchers use daylight as the benchmark to which to compare color rendering of electric lights. In 1948, daylight was described as the ideal source of illumination for good color rendering because "it (daylight) displays (1) a great variety of colors, (2) makes it easy to distinguish slight shades of color, and (3) the colors of objects around us obviously look natural".