Abstract: A lighting device extends substantially along a first axis and comprises a LED light source, which has a substantially hemispheric emission on a side of an emission plane, and an optical group, which is placed in front of the light source; the optical group is configured so as to intercept the light emitted by the light source and generate a light ring, which extends at 360° around the light source on opposite sides of the emission plane and is substantially parallel to a meridian plane, which is perpendicular to the emission plane and goes through the axis of the lighting device.

Abstract: A lighting device extends substantially along a first axis and comprises a LED light source, which has a substantially hemispheric emission on a side of an emission plane, and an optical group, which is placed in front of the light source; the optical group is configured so as to intercept the light emitted by the light source and generate a light ring, which extends at 360° around the light source on opposite sides of the emission plane and is substantially parallel to a meridian plane, which is perpendicular to the emission plane and goes through the axis of the lighting device

Abstract: A LED lighting device extending substantially along an axis and having a LED light source; a light guide located in front of the light source and extending between a proximal end substantially facing the light source, and a distal end opposite the proximal end; and an optical system associated with the light source to direct the luminous flux emitted by the light source; the light guide being shaped so as to generate at the distal end of the light guide an emissive surface equivalent to the real emitting surface of the light source at a predetermined position with respect to the optical system.

Abstract: A LED illumination lamp extending substantially along and about an axis, and having: a LED light source located substantially along the axis; a light diverting optical element located substantially in front of the light source, along the axis, and designed to laterally divert the light impinging substantially axially on the optical element; and an optical guide plate surrounding the optical element and the axis, and having a seat housing the light source and the optical element; the plate extending along the axis, between two opposite faces respectively defining a front light-exit surface, and a rear active surface having a number of circumferential annular projections spaced radially apart and concentric with the axis.

Abstract: A LED illumination lamp extending substantially along and about an axis, and having: a LED light source located substantially along the axis; a light diverting optical element located substantially in front of the light source, along the axis, and designed to laterally divert the light impinging substantially axially on the optical element; and an optical guide plate surrounding the optical element and the axis, and having a seat housing the light source and the optical element; the plate extending along the axis, between two opposite faces respectively defining a front light-exit surface, and a rear active surface having a number of circumferential annular projections spaced radially apart and concentric with the axis.

Abstract: A LED lighting device extending substantially along an axis and having a LED light source; a light guide located in front of the light source and extending between a proximal end substantially facing the light source, and a distal end opposite the proximal end; and an optical system associated with the light source to direct the luminous flux emitted by the light source; the light guide being shaped so as to generate at the distal end of the light guide an emissive surface equivalent to the real emitting surface of the light source at a predetermined position with respect to the optical system.