| 摘要 |
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. |
