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2. This under $60 laser projector turns your room into a dreamy ...

   www.aol.com/lifestyle/2020-05-20-blisslight...

   The laser projector will have you swimming among stars and galaxies in your own home for less than $50.

3. Planetarium projector - Wikipedia

   en.wikipedia.org/wiki/Planetarium_projector

   An image of the Milky Way was created by using drum-type projectors that were studded with unfocused pinprick-sized holes based on photographic images of our galaxy. Specific projectors could imitate the light changes of such variable stars as Algol or Omicron Ceti, and other projectors could produce images of the constellations, of specific ...

4. Planetarium - Wikipedia

   en.wikipedia.org/wiki/Planetarium

   LCD projectors have fundamental limits on their ability to project true black as well as light, which has tended to limit their use in planetaria. LCOS and modified LCOS projectors have improved on LCD contrast ratios while also eliminating the "screen door" effect of small gaps between LCD pixels. "Dark chip" DLP projectors improve on the ...

5. Laser lighting display - Wikipedia

   en.wikipedia.org/wiki/Laser_lighting_display

   Laser light is useful in entertainment because the coherent nature of laser light allows a narrow beam to be produced, which allows the use of optical scanning to draw patterns or images on walls, ceilings or other surfaces including theatrical smoke and fog without refocusing for the differences in distance, as is common with video projection ...

6. 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 .

7. Zooming In on the Andromeda Galaxy - Wikipedia

   en.wikipedia.org/wiki/Zooming_in_on_the...

   The image depicts the right-most side of the Andromeda Galaxy's galactic disc in visible light, [5] [6] and the displayed section is approximately 61,000 light-years across. [7] [8] The image shows the galaxy's 100 million stars of varying types and thousands of star clusters.