a device that produces a narrow and powerful stream of light that has many special uses in medicine, industry, etc.
doctors using a laser to perform delicate eye surgery
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Recent Examples of lasersHis misconduct, from posing as an arson investigator during the worst wildfires in Los Angeles history to aiming lasers at the cockpits of commercial and law enforcement aircraft, repeatedly put lives at risk, according to prosecutors.—Ray Sanchez, CNN Money, 2 Nov. 2025 According to aesthetic nurse Eric Nietzel-Leone, this is an excellent post-treatment mask for cooling and calming the skin after lasers or microneedling.—Iman Balagam, Vogue, 30 Oct. 2025 What started as a line to prep and repair post-procedure skin after treatments like lasers and peels has since become so much more.—Christa Joanna Lee, Allure, 30 Oct. 2025 And Japanese-market versions (known as the Toyota Celsior, as Lexus didn’t have showrooms in its homeland until 2005) even offered an adaptive cruise control system that used lasers to sense the distance to the vehicle ahead.—Will Sabel Courtney, Robb Report, 30 Oct. 2025 While lasers aren't the most energy-efficient tools, the beam vaporizes a mere pinhole of ice, meaning the drill uses far less total power than electric heaters.—Samantha Mathewson, Space.com, 30 Oct. 2025 Copson is most widely acclaimed for his theatrical installations, which fuse lasers, sculptures, and sound.—Zac Ntim, Deadline, 28 Oct. 2025 Over two sittings, the contemporary artist, known for his work with light and lasers, captured over 8,000 images of Queen Elizabeth, according to a history of the portrait by Barneby's.—Meredith Kile, PEOPLE, 27 Oct. 2025 Light sails and giant lasers might get you some of the way there.—Jeffrey Kluger, Time, 22 Oct. 2025
There's a large body of physical evidence as well, including moon rocks, subsequent photos of the landing sites and the existence of a retroreflector that can bounce back beams from Earth.
—
Adam Carlson,
PEOPLE,
30 Oct. 2025
According to the graphic on the Optoma UHZ58LV's product page (reproduced below), one laser takes care of the red color spectrum while the other beams out blue, green and yellow.
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