unfocused infrared laser

несфокусований інфрачервоний лазер (an unfocused infrared laser highlights any object in a certain area of the sky while a camera records any reflected light coming back. - Ukraine's Working to Beat Russia's Unjammable Fiber-Optic Drones - Business Insider, Jan 11, 2025)

infrared CO2 laser

far-infrared laser

active infrared (IR) guidance system

electro-optic/infrared (EO/IR)

forward looking infrared (FLIR) camera

imaging infrared system (I2R sys)

infrared / negative ultraviolet (IR/NUV) seeking

infrared acquisition system

infrared devices

infrared homing system

infrared imaging sensor

infrared intelligence (IRINT)

infrared night vision observation device

infrared receiver

infrared sensor

infrared target-sensor

forward looking infrared (FLIR) receiver

infrared sight-line control (ISC)

IRR / Infrared Resistant

advanced forward-looking infrared

advanced large-area infrared transducer

infrared focal plane array

long wavelength infrared focal plane array

infrared countermeasures

infrared device

infrared light supply

infrared search and tracking (IRST)

infrared viewing

infrared weapon sight

fast infrared search and track