Luminaire
AssigneeKoninklijke Philips Electronics N.V.
InventorsLudovicus Johannes Lambertus Haenen, Franciscus Guillaume Peter Sools
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Abstract
The luminaire has a lamp housing (1) in which lamps L1, L2 of different color aspect can be accommodated, surrounded by a reflector (11) and a non-transparent, light-transmitting window (10). The window (10) gives access to a reflector housing (3) which is provided with means (31, 32; 33) for screening and directing light. In the lamp housing, light of different color or color temperature is efficiently and effectively mixed. The luminaire may have a compact shape and is suitable for illuminating rooms efficiently with light of a chosen color aspect through dimming of the lamps in relation to one another.
Claims9
A luminaire provided with a lamp housing (1) and holders (2) for accommodating several elongate tubular fluorescent lamps of different color aspect next to one another in the lamp housing (1), said housing (1) having a non-transparent, light-transmitting window (10) for allowing light to issue to the exterior, the window (10) is a PMMA foil with prismatic ridges in the longitudinal direction of the lamps, the luminaire characterized in that a reflector (11) with a reflection coefficient of at least 0.85 is present in the lamp housing (1), which reflector (11) is positioned so as to surround at least substanially lamps arranged in the holders (2) and which leaves the window (10) free, in that the window (10) has a surface area accounting for 10 to 70% of the total surface area of the reflector (11) and the window (10) together, and in that the window (10) affords access to a reflector housing (3) which comprises means for shaping light issuing through the window (10) into a beam, the means for shaping light comprising a plurality of lamellae (33) housed within a reflector housing (3) having an opening for receiving at least a portion of said housing (1).
Dependencies are inferred from the claim text.