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公开(公告)号:US20190254147A1
公开(公告)日:2019-08-15
申请号:US16255127
申请日:2019-01-23
Inventor: Tadashi MURAKAMI
IPC: H05B37/02 , H04B17/318 , H04L12/24
Abstract: An illumination system includes a plurality of lighting fixtures, a plurality of slave devices, and an information communication terminal. Each of the plurality of slave devices includes: first wireless communication circuitry configured to receive, from each of the plurality of lighting fixtures, a signal including a MAC address of the lighting fixture, and to measure a received signal strength indication (RSSI) of the signal received; and a first controller that causes the first wireless communication circuitry to transmit the MAC address and RSSI information indicating the RSSI measured. The information communication terminal includes a second controller that makes associations between positions and MAC addresses of the plurality of lighting fixtures based on the RSSI information and position information stored in a storage.
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公开(公告)号:US20170350580A1
公开(公告)日:2017-12-07
申请号:US15612004
申请日:2017-06-02
Inventor: Yoshiaki HONDA , Takaaki UKEDA , Tatsuo MASUDA , Tadashi MURAKAMI , Shigeo GOTOH
CPC classification number: F21V23/0471 , F21S8/033 , F21S8/04 , F21Y2115/10 , G01S13/56 , G01S13/88 , G01S2007/027
Abstract: A luminaire includes a radio wave sensor and a luminaire body. The luminaire body includes a first plate to be attached to a building surface and a second plate facing each other forming an internal space. The luminaire body holds the radio wave sensor between the first plate and the second plate. The radio wave sensor includes an antenna for transmitting and receiving the radio waves. The luminaire body includes an opening and a limiter. The opening is formed in the second plate to allow radio waves transmitted from the antenna to exit to an outside of the luminaire body. The limiter is provided between the antenna and the opening to limit a radiation area of the radio waves transmitted from the antenna.
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公开(公告)号:US20160077243A1
公开(公告)日:2016-03-17
申请号:US14852370
申请日:2015-09-11
Inventor: Takashi OHTA , Tadashi MURAKAMI
IPC: G02B3/00 , H01L33/48 , F21K99/00 , H01L25/075
CPC classification number: G02B3/0068 , F21K9/20 , F21K9/60 , F21K9/69 , F21V5/007 , F21V29/763 , F21Y2105/10 , F21Y2113/00 , F21Y2115/10
Abstract: An illumination device includes a light source, a device body to which the light source is mounted, and an optical member configured to control light distribution of light emitted from the light source. The light source includes LEDs arranged in a matrix form or a linear form. The optical member includes a lens portion configured to control light distribution of the LEDs on a row-by-row basis. The lens portion includes a recessed incidence portion on which the light emitted from the LEDs is incident, an elongated emission portion opposite to the incidence portion, and a pair of reflection portions which interconnects the incidence portion and the emission portion along a longitudinal direction thereof and totally reflects the light incident from the incidence portion. The emission portion is formed to have a plurality of successive convex surfaces when seen in a cross section taken along the longitudinal direction thereof.
Abstract translation: 照明装置包括光源,安装有光源的装置主体和被配置为控制从光源发出的光的光分布的光学部件。 光源包括以矩阵形式或线性形式布置的LED。 光学构件包括被配置为逐行地控制LED的配光的透镜部。 透镜部分包括从LED发射的光入射的凹入入射部分,与入射部分相对的细长发射部分和沿着其入射部分沿纵向方向将入射部分和发射部分互连的一对反射部分, 完全反映了入射部分的光线。 当沿着其纵向截取的横截面中观察时,发射部分形成为具有多个连续的凸面。
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公开(公告)号:US20170030548A1
公开(公告)日:2017-02-02
申请号:US15214794
申请日:2016-07-20
Inventor: Jun HIRAI , Tadashi MURAKAMI
CPC classification number: F21V5/007 , F21K9/64 , F21S2/00 , F21S8/086 , F21V5/04 , F21V5/08 , F21V7/0091 , F21W2131/103 , F21Y2105/10 , F21Y2105/16 , F21Y2115/10
Abstract: An optical lens includes: a first lens surface which defines a space for housing a light emitting diode (LED) light source; a second lens surface formed in a convex shape; and a third lens surface formed continuously from a rear edge portion of the second lens surface, which is on a side opposite an illumination target side. The first lens surface includes a first light-entering surface through which a portion of light from the LED light source enters, and a second light-entering surface through which another portion of the light enters. The third lens surface totally reflects, to a substrate, at least a portion of the light. An angle between the third lens surface and a principal surface of the substrate on a virtual plane which includes an optical axis is smaller than an angle between the second light-entering surface and the principal surface on the virtual plane.
Abstract translation: 光学透镜包括:第一透镜表面,其限定用于容纳发光二极管(LED)光源的空间; 形成为凸状的第二透镜面; 以及第三透镜表面,其从与照明目标侧相对的一侧的第二透镜表面的后边缘部分连续地形成。 第一透镜表面包括第一光入射表面,来自LED光源的一部分光通过该第一光入射表面和另一部分光进入的第二光入射表面。 第三透镜表面将至少一部分光完全反射到基板。 包括光轴在虚拟平面上的第三透镜表面和基板的主表面之间的角度小于虚拟平面上的第二光入射表面和主表面之间的角度。
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公开(公告)号:US20170343663A1
公开(公告)日:2017-11-30
申请号:US15602965
申请日:2017-05-23
Inventor: Tatsuo MASUDA , Tadashi MURAKAMI , Shigeo GOTOH
CPC classification number: G01S13/56 , F21V23/0471 , F21V33/006 , F21Y2115/10 , G01S7/352 , G01S13/86 , G01S13/88 , G01S2007/358
Abstract: A sensor device includes a radio wave sensor and a signal processor. The signal processor includes an identifier and a noise remover configured to remove, from a second sensor signal, at least one frequency component determined as a noise component by the identifier. The identifier compares a signal intensity of each of the frequency components with one or more signal intensities of other frequency components. When a signal intensity of a first frequency component is greater than signal intensities of one or more second frequency components located in the vicinity of the first frequency component by an extent exceeding a threshold range, the identifier determines the first frequency component as the noise component.
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公开(公告)号:US20170343199A1
公开(公告)日:2017-11-30
申请号:US15604200
申请日:2017-05-24
Inventor: Takaaki UKEDA , Yoshiaki HONDA , Shigeo GOTOH , Tadashi MURAKAMI
CPC classification number: F21V23/0471 , G01S7/032 , G01S7/038 , G01S13/56 , G01S13/88 , G01S2007/027
Abstract: A luminaire includes a radio wave sensor, a luminaire body and a cover. The radio wave sensor is configured to detect, using radio waves, movement of an object within a detection area by a Doppler Effect due to the movement of the object. The luminaire body holds the radio wave sensor. The cover is attached to the luminaire body and covers the radio wave sensor, the cover allowing the radio waves to pass through. The radio wave sensor includes an antenna for transmitting/receiving the radio waves. An antenna face (receiving surface) of the antenna for receiving the radio waves is inclined relative to the cover.
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