- A device for checking an integrated circuit having an optoelectronic emitter suitable for emitting a beam of electromagnetic radiation and defining an axis of emission of said beam, the device comprising: - electrical connecting means for connecting said optoelectronic emitter to a source of electrical energy, - reflecting means suitable for being positioned around said optoelectronic emitter in such a way that they reflect part of said beam, said reflecting means being a parabolic reflector, - a convergent lens the optical axis of which coincides with said axis of emission, receiving electromagnetic radiation emitted by said optoelectronic emitter and that reflected by said reflecting means, - an opaque sheet having a plurality of holes, receiving electromagnetic radiation emitted by said optoelectronic emitter and that reflected by said reflecting means, and - a measuring module arranged for receiving the electromagnetic radiation coming from the convergent lens, wherein [a] said convergent lens is disposed between said optoelectronic emitter and said sheet, and said device comprises additionally: - beam splitting means, disposed between said sheet and said measuring module and suitable for splitting the electromagnetic radiation coming from said convergent lens into a first beam (20, 23) propagating in a first direction and a second beam (21, 24) propagating in a second direction, where said first beam is directed towards said measuring module, - a second convergent lens the optical axis of which coincides with said second direction, and - a second measuring module suitable for receiving the electromagnetic radiation coming from said second convergent lens, or wherein [b] said sheet is disposed between said optoelectronic emitter and said convergent lens, and said device comprises, additionally, a difusser plate disposed between said sheet and said convergent lens. - electrical connecting means for connecting said optoelectronic emitter to a source of electrical energy, - reflecting means suitable for being positioned around said optoelectronic emitter in such a way that they reflect part of said beam, said reflecting means being a parabolic reflector, - a convergent lens the optical axis of which coincides with said axis of emission, receiving electromagnetic radiation emitted by said optoelectronic emitter and that reflected by said reflecting means, - an opaque sheet having a plurality of holes, receiving electromagnetic radiation emitted by said optoelectronic emitter and that reflected by said reflecting means, and - a measuring module arranged for receiving the electromagnetic radiation coming from the convergent lens, [a] said convergent lens is disposed between said optoelectronic emitter and said sheet, and said device comprises additionally: - beam splitting means, disposed between said sheet and said measuring module and suitable for splitting the electromagnetic radiation coming from said convergent lens into a first beam (20, 23) propagating in a first direction and a second beam (21, 24) propagating in a second direction, where said first beam is directed towards said measuring module, - a second convergent lens the optical axis of which coincides with said second direction, and - a second measuring module suitable for receiving the electromagnetic radiation coming from said second convergent lens, or wherein - beam splitting means, disposed between said sheet and said measuring module and suitable for splitting the electromagnetic radiation coming from said convergent lens into a first beam (20, 23) propagating in a first direction and a second beam (21, 24) propagating in a second direction, where said first beam is directed towards said measuring module, - a second convergent lens the optical axis of which coincides with said second direction, and - a second measuring module suitable for receiving the electromagnetic radiation coming from said second convergent lens, or wherein [b] said sheet is disposed between said optoelectronic emitter and said convergent lens, and said device comprises, additionally, a difusser plate disposed between said sheet and said convergent lens.