| 摘要 |
Luminaire, of the type that integrates a group of lamps (3) each one of which has a reflector screen (4) at the bottom of which a source of light (5) is placed, characterised in that the group of lamps (3) of the luminaire (1) is divided into concentric rings (cr) wherein all the lamps (3) of each concentric ring (cr) have the same cut-off angle (a) and the cut-off angle (a0) of the lamps (3) of the most peripheral concentric ring (cr0) is less than the cut-off angle (a1,...,an) of the lamps (3) of the more inner concentric rings (cr1 ,...,crn). The cut-off angle (an) of the lamps (3) of each concentric ring (crn) is greater than or equal to the cut-off angle (an-1) of the immediately outer concentric ring (crn-1). |
