retroreflector

noun

ret·ro·re·flec·tor ˌre-trō-ri-ˈflek-tər

: a device that reflects radiation (such as light) so that the paths of the reflected rays are parallel to those of the incident rays

Examples of retroreflector in a Sentence

Recent Examples on the Web But now researchers from the International Centre for Radio Astronomy Research, in Western Australia, have developed a coherent FSO link operating at 1,550 nanometers across a turbulent atmosphere between an optical ground terminal and a retroreflector mounted on an airborne drone. —

IEEE Spectrum, 1 Dec. 2022 Instead, a retroreflector directs the light back towards the source. —

Rhett Allain, Wired, 12 Sep. 2021 Its glittering ‘eyes’ were the glass retroreflector beads destined to snoop on unsuspecting targets. —

David Hambling, Popular Mechanics, 18 Feb. 2020 In practice, these retroreflectors acted as a remote microphone to eavesdrop on any conversation. —

David Hambling, Popular Mechanics, 18 Feb. 2020

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