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    LED LIGHTING DEVICE
    2.
    发明公开
    LED LIGHTING DEVICE 审中-公开

    公开(公告)号：EP4446649A1

    公开(公告)日：2024-10-16

    申请号：EP24169758.0

    申请日：2024-04-11

    申请人： Belfiore Srl

    发明人： CINEL, Gianfranco

    IPC分类号： F21V5/04 ,  F21V17/00 ,  F21V17/06 ,  F21V17/16 ,  F21V33/00 ,  F21Y115/10

    摘要： There is described an LED lighting device (1; 100; 110; 120) comprising a member (2; 102) for fixing an LED element (3) which has a receiving cavity (11; 103) for the LED element (3), a plate (7) which carries a printed circuit board for connection to the LED element (3) and which is provided to be fixed to the member (2; 102), the LED element (3) being positioned on one (16a) of the opposing faces (16a, 16b) of the plate (7), the faces being delimited by an edge of the plate which defines a first peripheral profile (17), a lens (13) which is configured to concentrate the light beam which is emitted by the LED element (3), a support (14) for supporting the lens (13), which is internally hollow and which extends axially between a first end (14a), in the region of which it is connected to the lens (13), and a second opposite end (14b), in which the support (14) is open towards the exterior through an opening (18) which is delimited by a second peripheral profile (19) of the support, wherein the second peripheral profile (19) of the support is configured to surround the first peripheral profile (17) of the plate, with mainly positive-locking connection with a limited connection play, and wherein the LED element (3) and the lens (13) are provided on the plate (7) and on the support (14), respectively, in such positions that, by means of the positive-locking connection between the first and second peripheral profiles (17, 19), the centring of the lens (13) with respect to the LED element (3) is obtained in order to ensure a centred concentration of the light beam emitted by the LED element (3) through the lens (13).

    LEUCHTE
    3.
    发明公开
    LEUCHTE 审中-公开

    公开(公告)号：EP4446647A1

    公开(公告)日：2024-10-16

    申请号：EP24165598.4

    申请日：2024-03-22

    申请人： Trilux GmbH & Co. KG

    发明人： Schreiber, Thomas

    IPC分类号： F21V3/00 ,  F21V15/01 ,  F21V17/10

    摘要： Leuchte (1) für eine Lichtquelle mit Primäroptik, umfassend ein Leuchtengehäuse (2) mit einer Abstrahlöffnung (8) sowie eine für Licht durchlässig gestaltete scheibenförmige Abdeckung (9, 44) als Sekundäroptik (10) für von der Lichtquelle abgestrahltes Licht, mit der Maßgabe, dass die lichtdurchlässige scheibenförmige Abdeckung (9, 44) dem Leuchtengehäuse (2) zugewandt eine Oberseite (13) mit einer Einstrahloberfläche (14) für von der Lichtquelle ankommendes Licht aufweist sowie dem Leuchtengehäuse (2) abgewandt eine Unterseite (11) mit einer Abstrahloberfläche (12) für hindurchgeleitetes Licht aufweist, wobei die scheibenförmige Abdeckung (9, 44) lösbar mit dem Leuchtengehäuse (2) verbindbar ist mittels eines an dem Leuchtengehäuse (2) vorgesehenen zumindest teilweise umlaufenden Befestigungsrandes (15) und eines an der scheibenförmigen Abdeckung (9, 44) vorgesehenen zumindest teilweise umlaufenden Halterandes (17), wob ei der Halterand (17) der lichtdurchlässigen scheibenförmigen Abdeckung (9, 44) eine Haltefläche (18) aufweist, welche auf jener dem Leuchtengehäuse (2) abgewandten Unterseite (11) der scheibenförmigen Abdeckung (9, 44) vorgesehen ist, und wobei der Befestigungsrand (15) des Leuchtengehäuses (2) eine zum Inneren des Leuchtengehäuses (2) gerichtete tragende Randfläche (16) aufweist, die mit der Haltefläche (18) des Halterandes (17) der lichtdurchlässigen scheibenförmigen Abdeckung (9, 44) zusammenwirkt.

    LUMINAIRE
    4.
    发明公开
    LUMINAIRE 审中-公开

    公开(公告)号：EP4446646A1

    公开(公告)日：2024-10-16

    申请号：EP23167651.1

    申请日：2023-04-13

    申请人： Zumtobel Lighting GmbH

    发明人： Lorenz, Stefan ,  Andreas, Machate

    IPC分类号： F21V3/00 ,  F21V17/02 ,  G10K11/16 ,  F21Y115/10

    摘要： The invention relates to a luminaire (1) for illuminating a room (R) and for controlling room acoustics in said room (R). The luminaire (1) comprises: a housing (2) with a cavity (3), a light source (4) arranged in the cavity (3), a rigid transparent cover (5) arranged such that at least part of the light emitted by the light source (4) can be emitted via the cover (5) into the room (R) to be illuminated, a support (6) arranged to support the cover (5), a fastener (7) arranged to fix the cover (5) to the support (6), and a flexible section (8) arranged between the support (6) and the cover (5) and/or between the cover (5) and at least part of the fastener (7) such that the flexible section (8) and the cover (5) are pressed together when the cover (5) is fixed, by the fastener (7), to the support (6). The fastener (7) is arranged to be selectively adjustable between a first position in which the flexible section (8) and the cover (5) are pressed together such that the cover (5) is in a first fixed state in which the cover (5) has a first resonance frequency, and a second position in which the flexible section (8) and the cover (5) are pressed together such that the cover (5) is in a second fixed state in which the cover (5) has a second resonance frequency different from the first resonance frequency. Each of the first and second resonance frequencies is in a range of 300Hz or less.