ruby laser

American  

noun

1. a solid-state, pulsed laser that uses a ruby crystal to produce a very strong beam of red coherent light, used in making holographs and in cosmetic instruments.

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Etymology

Origin of ruby laser

First recorded in 1955–60

Example Sentences

In tests made several years ago, a beam from a ruby laser was aimed at the moon, 240,000 miles away.

From Time Magazine Archive

“The bulge looked huge, inflated like a balloon,” remembered Mindy Brugman, who came to Coldwater II with another scientist, Carolyn Driedger, on Saturday to train David Johnston on the ruby laser ranger.

From "Mountain of Fire" by Rebecca E. F. Barone

But the ruby laser ranger wasn’t his to give out.

From "Mountain of Fire" by Rebecca E. F. Barone

Brugman came back to Mount St. Helens bearing the ruby laser ranger.

From "Mountain of Fire" by Rebecca E. F. Barone

And, like Brugman bringing in the ruby laser ranger and Voight adding his knowledge of landslides, the CVO is constantly updating their tools and developing new ones.

From "Mountain of Fire" by Rebecca E. F. Barone