LIGHTING DEVICE AND LUMINAIRE

摘要

Disclosed is a lighting device (1) comprising a bulbous body mounted on a cap (20), an inner surface of the bulbous body comprising a plurality of steps that are axially displaced relative to each other along a central axis of the lighting device, said plurality of steps comprising a first step (110) supporting a first plurality of solid state lighting elements (32); and a second step (120) supporting a second plurality of solid state lighting elements (42), wherein the first step is located in between the cap and the second step.A luminaire including such a lighting device is also disclosed.