Abstract: A device for illuminating a target comprises a laser which produces a light beam, a viewing medium which receives electromagnetic radiation in an acceptance band, a beam-splitter which splits the light beam into a first beam and a second beam, and an imaging assembly. The imaging assembly comprises a light conversion medium and an element responsible for image creation comprising one of a light focusing medium and a light reflective medium. The first beam is directed along a travel path from the beam-splitter to the element and then to the light conversion medium, wherein the light conversion medium converts the first beam into electromagnetic radiation within the acceptance band. A spot object distance between the light conversion medium and the element is less than a target distance. The target distance is between the target and the beam-splitter less a distance between the beam-splitter and the element.

Abstract: A laser vibrometer makes non-contact measurements of vibrations of a target. A laser produces a laser beam, and a beamsplitter splits the laser beam into a reference beam and a first target beam. A first frequency shifter/splitter splits the first target beam into a pair of target beams each having a frequency different than a frequency of the other target beams. The target beams are reflected from the target to a detector, and the reference beam is combined with the target beams such that the detector receives the target beams and reference beam together.

Abstract: A device for illuminating a target comprises a laser which produces a light beam, a viewing medium which receives electromagnetic radiation in an acceptance band, a beam-splitter which splits the light beam into a first beam and a second beam, and an imaging assembly. The imaging assembly comprises a light conversion medium and an element responsible for image creation comprising one of a light focusing medium and a light reflective medium. The first beam is directed along a travel path from the beam-splitter to the element and then to the light conversion medium, wherein the light conversion medium converts the first beam into electromagnetic radiation within the acceptance band. A spot object distance between the light conversion medium and the element is less than a target distance. The target distance is between the target and the beam-splitter less a distance between the beam-splitter and the element.