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196 条记录 (耗时 0.021 秒)

    MOLDED LIGHT GUIDE FOR OPTICALLY COUPLING LIGHT FROM LEDS
    82.
    发明申请
    MOLDED LIGHT GUIDE FOR OPTICALLY COUPLING LIGHT FROM LEDS 审中-公开

    公开(公告)号：US20190146142A1

    公开(公告)日：2019-05-16

    申请号：US16098847

    申请日：2016-11-08

    申请人： Lumileds Holding B.V.

    发明人： Varun Dev KAKKAR ,  Erno FANCSALI ,  Huub KONIJN

    IPC分类号： F21V8/00

    CPC分类号： G02B6/0073 ,  G02B6/0021 ,  G02B6/0055 ,  G02B6/0065 ,  G02B6/0083

    摘要： A thin plastic light guide is formed to have cavities on one surface and TIR (total internal reflection) structures directly above the cavities. LEDs mounted on a printed circuit board are positioned in the cavities. The cavity walls are shaped to refract the LED light and direct the LED light toward the TIR structures to most efficiently make use of the TIR structures. The TIR structures may have a cusp or cone shape. The top ceiling of the cavities may be shaped to direct light at the TIR structure so as to leak through the TIR structure and blend the light with light leaking through surrounding portions of the light guide. The LEDs may be distributed only near the edges of the light guide or over the entire back surface of the light guide. A diffuser sheet may be laminated over the light guide to further mix the light.

    ARRANGEMENT OF A TIR BODY
    85.
    发明申请
    ARRANGEMENT OF A TIR BODY 审中-公开

    公开(公告)号：US20190094507A1

    公开(公告)日：2019-03-28

    申请号：US16084457

    申请日：2017-03-06

    申请人： LUMILEDS HOLDING B.V.

    发明人： Juergen MERTENS ,  Astrid MARCHEWKA ,  Georg HENNINGER

    IPC分类号： G02B19/00 ,  F21S41/24 ,  F21V7/00 ,  F21S41/141 ,  F21S41/16

    摘要： The invention relates to an optical device and to a headlighting assembly including an optical device. An optical device includes a body of a transparent material arranged to receive light at at least one light input portion. At least a portion of the light is reflected at an outer surface of the body due to total internal reflection. A non-transparent housing is provided to at least partially cover the body. The body is held within the housing by protrusions arranged to abut against the outer surface.

    DRIVER FOR AN ADAPTIVE LIGHT SOURCE
    87.
    发明申请
    DRIVER FOR AN ADAPTIVE LIGHT SOURCE 审中-公开

    公开(公告)号：US20190025672A1

    公开(公告)日：2019-01-24

    申请号：US16071777

    申请日：2017-01-10

    申请人： LUMILEDS HOLDING B.V.

    发明人： Arjen VAN DER SIJDE ,  Nicola Bettina PFEFFER ,  Yourii MARTYNOV

    IPC分类号： G03B15/03 ,  H04N5/225 ,  H04N5/235 ,  H04N5/353

    摘要： A method according to embodiments of the invention includes, for a field of view comprising a plurality of portions, determining an amount of light for each portion. LEDs corresponding to each portion are selectively energized over a plurality of time periods, such that a sum of illumination generated by each LED during the plurality of time periods equals the determined amount of light. An image of the field of view is captured, for example by a camera.

    LIGHTING ARRANGEMENT WITH EXACT POSITIONING OF AN OPTICAL ELEMENT
    88.
    发明申请
    LIGHTING ARRANGEMENT WITH EXACT POSITIONING OF AN OPTICAL ELEMENT 审中-公开

    公开(公告)号：US20190011101A1

    公开(公告)日：2019-01-10

    申请号：US16068601

    申请日：2017-01-05

    申请人： Lumileds Holding B.V.

    发明人： Benno SPINGER ,  Josef SCHUG ,  Robert DERIX

    IPC分类号： F21S41/19 ,  F21S41/147 ,  F21S41/32 ,  F21S45/47 ,  F21V29/503

    摘要： A vehicle lighting arrangement with an LED element emits light through the frame opening and is partially shielded at least at a first frame edge. A reference frame part includes a frame opening bordered by frame edges, and reference portions to define positions relative to the frame opening. A first reference portion is provided on a first surface portion and is arranged parallel to a light emitting surface of the LED. A second reference portion is arranged on a second surface portion and is arranged perpendicular to the first surface portion. A third reference portion is arranged on a third surface portion and is arranged perpendicular to both the first and second surface portions. An optical element for shaping an illumination beam from the LED through the frame opening is in contact with the reference frame part to define a position of the optical element relative to the frame opening.