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    Lighting apparatus
    4.
    发明授权
    Lighting apparatus 有权

    公开(公告)号：US10551726B2

    公开(公告)日：2020-02-04

    申请号：US16085514

    申请日：2016-03-17

    申请人： MAXELL, LTD.

    发明人： Katsuyuki Watanabe ,  Takatsugu Kawabata ,  Nobuyuki Kaku ,  Shinji Shibuya

    IPC分类号： G03B21/16 ,  F21V29/67 ,  F21V33/00 ,  G03B21/14 ,  F21V29/74 ,  G03B21/20

    摘要： A lighting apparatus which is held in a state of being suspended from a mounting bracket fixed to a ceiling surface and emits illumination light is provided, and the lighting apparatus includes: an illumination light source for generating the illumination light disposed inside a housing; a projector disposed in an inner space of the housing and configured to project an image onto a projection surface; and a lint disposed in an upper portion inside the housing, wherein an air intake and an air outlet are formed at such positions in the housing that air flow generated by the fan is sucked from a lower portion of the housing, passes upward through a vicinity of the illumination light source and the projector, and is exhausted from the upper portion of the housing.

    Lighting device
    5.
    发明授权
    Lighting device 有权

    公开(公告)号：US10345689B2

    公开(公告)日：2019-07-09

    申请号：US15773180

    申请日：2015-11-18

    申请人： MAXELL, LTD.

    发明人： Katsuyuki Watanabe ,  Nobuyuki Kaku ,  Tatsuya Ishikawa

    IPC分类号： G02B5/02 ,  G03B21/20 ,  F21V33/00 ,  G02B5/20 ,  H04N9/31

    摘要： Provided is a video-image-projecting-function-equipping lighting device having favorable usability for a user. The lighting device has: a lighting unit for emitting illumination light; a projection type video image display unit for projecting a video image; and also a structure of suspending the lighting device from a ceiling surface so as to make its horizontality adjustable, and the projection type video image display unit displays an image for guiding the adjustment of the horizontality.

    Lighting apparatus
    7.
    发明授权
    Lighting apparatus 有权

    公开(公告)号：US10708559B2

    公开(公告)日：2020-07-07

    申请号：US16751450

    申请日：2020-01-24

    申请人： MAXELL, LTD.

    发明人： Takuya Shimizu ,  Maki Hanada ,  Megumi Kurachi ,  Hiroyuki Urata ,  Katsuyuki Watanabe

    IPC分类号： H04N9/31 ,  F21V23/04 ,  F21S8/00 ,  F21V33/00 ,  G03B21/14 ,  F21S8/04 ,  G03B21/28 ,  F21Y115/10 ,  G06F3/01 ,  G06F3/0484 ,  G06F3/0482 ,  G06F3/042 ,  H05B47/105 ,  H05B45/00

    摘要： A lighting apparatus with an image-projecting function that is convenient for a user is provided. It includes: an illuminating unit that emits illumination light; a projection-type image display unit that emits image-projecting emission light for projecting an image; and a sensor that emits operation-detecting light for operation detection and that is capable of detecting an operation by an operation object in a range including an image projection area of the projection-type image display unit, and is configured so that the image-projecting light, and the operation-detecting emission light have respective different wavelength distribution characteristics, and regarding a light amount in the wavelength range of light used by the sensor for the operation detection, a light amount of the operation-detecting light is the largest among those of the illumination light, the image-projecting emission light, and the operation-detecting light.