| Answer | Crossword Clue |
|---|---|
| collimator | A device for producing a parallel beam of rays or radiation |
| collimators | A device for producing a parallel beam of rays or radiation |
| lasers | a device that utilizes the natural oscillations of atoms or molecules between energy levels for generating a beam of coherent electromagnetic radiation usually in the ultraviolet, visible, or infrared regions of the spectrum |
| lamps | An electrical device producing ultraviolet, infrared, or other radiation, used for therapeutic purposes |
| retroreflector | a device that reflects radiation so that the paths of the reflected rays are parallel to those of the incident rays |
| retroreflectors | RETROREFLECTOR, a device that reflects radiation so that the paths of the reflected rays are parallel to those of the incident rays |
