An imaging engine for electro-optically imaging targets, comprising: a single printed circuit board, PCB,; an illumination light assembly supported by the PCB, for illuminating a target; a single chassis mounted on the PCB; an imaging lens assembly supported by the chassis, for capturing return light from the illuminated target; a solid-state imager supported by the PCB, for detecting the captured return light over a field of view, and for generating an electrical signal indicative of the captured light; the illumination light assembly includes a pair (12A,B) of illumination light emitting diodes,LEDs, spaced apart from each other on the PCB, and a pair (10A,B) of illumination refractive lenses, one for each illumination LED and mounted on the corresponding LED, for optically modifying the illumination light as a pair of conical light beams that at least partially overlap on the target; an aiming light assembly including an aiming light emitting diode, LED, supported by the PCB for emitting an aiming light beam, and an aiming lens supported by the chassis for optically modifying the aiming light beam to project an aiming pattern on the target; wherein the pair of illumination LEDs is located at opposite sides of the imager and is surface-mounted on the PCB and the aiming LED is located above or below the imager and is surface-mounted on the PCB; wherein the imaging lens assembly captures the return light along an optical axis, and wherein the PCB lies in a mounting plane that is perpendicular to the optical axis; and a fold mirror (86, 88) configured to fold both the optical path of the illumination light and the optical path of the aiming light beam. a single printed circuit board, PCB,; an illumination light assembly supported by the PCB, for illuminating a target; a single chassis mounted on the PCB; an imaging lens assembly supported by the chassis, for capturing return light from the illuminated target; a solid-state imager supported by the PCB, for detecting the captured return light over a field of view, and for generating an electrical signal indicative of the captured light; the illumination light assembly includes a pair (12A,B) of illumination light emitting diodes,LEDs, spaced apart from each other on the PCB, and a pair (10A,B) of illumination refractive lenses, one for each illumination LED and mounted on the corresponding LED, for optically modifying the illumination light as a pair of conical light beams that at least partially overlap on the target; an aiming light assembly including an aiming light emitting diode, LED, supported by the PCB for emitting an aiming light beam, and an aiming lens supported by the chassis for optically modifying the aiming light beam to project an aiming pattern on the target; wherein the pair of illumination LEDs is located at opposite sides of the imager and is surface-mounted on the PCB and the aiming LED is located above or below the imager and is surface-mounted on the PCB; wherein the imaging lens assembly captures the return light along an optical axis, and wherein the PCB lies in a mounting plane that is perpendicular to the optical axis; and a fold mirror (86, 88) configured to fold both the optical path of the illumination light and the optical path of the aiming light beam.