公开(公告)号：US20190195938A1

公开(公告)日：2019-06-27

申请号：US16329393

申请日：2018-05-03

申请人： BOE TECHNOLOGY GROUP CO., LTD.

发明人： Chao KONG ,  Kening ZHENG ,  Dong CHEN ,  Yinan LIANG

IPC分类号： G01R31/26 ,  H05B33/08

CPC分类号： G01R31/2642 ,  H05B33/0884 ,  H05B33/0896 ,  Y02B20/343

摘要： An aging test method for a light emitting device is provided. The aging test method includes: collecting, in an aging process applied to the light emitting device, an initial value of a first characteristic parameter of the light emitting device and an initial test time point; collecting a current value of the first characteristic parameter and a current test time point (step S1); generating a feature line according to the initial value, the current value, the initial test time point, and the current test time point, and calculating a slope of the feature line; determining whether the slope of the feature line is greater than or equal to a predetermined threshold and less than 0, and returning to the step S1 if a result of the determination is NO; and terminating the aging process applied to the light emitting device if the result of the determination is YES.

公开(公告)号：US20180352621A1

公开(公告)日：2018-12-06

申请号：US15922039

申请日：2018-03-15

申请人： PHILIPS LIGHTING HOLDING B.V.

发明人： SHAN WANG ,  CHUN YANG ,  ZHI QUAN CHEN ,  GANG WANG ,  JIE FU

IPC分类号： H05B33/08 ,  H05B39/04 ,  G05F1/10

CPC分类号： H05B33/0815 ,  F21Y2115/10 ,  G05F1/10 ,  H05B33/0812 ,  H05B33/083 ,  H05B33/0848 ,  H05B39/044 ,  Y02B20/343

摘要： A lighting circuit uses a tapped linear driver architecture in which there are at least two LED types; a first LED type with a first forward voltage, and a second LED type with a second forward voltage at least double the first forward voltage. The first segment of the tapped linear driver comprises more LEDs of the first type than the second type and the last segment comprises more LEDs of the second type than the first type. This arrangement enables a reduction in the number of LEDs needed, but without significantly impacting on the efficiency of the circuit.

公开(公告)号：US10085330B2

公开(公告)日：2018-09-25

申请号：US15611955

申请日：2017-06-02

申请人： GECKO ALLIANCE GROUP INC.

发明人： Christian Brochu ,  Benoit Laflamme

IPC分类号： H05B37/02 ,  H05B33/08 ,  G05B19/12 ,  F21V3/02 ,  G06F8/65 ,  G06K7/10 ,  G05B19/042 ,  F21Y115/10

CPC分类号： H05B37/0272 ,  F21V3/02 ,  F21Y2115/10 ,  G05B19/042 ,  G05B19/124 ,  G05B2219/25112 ,  G06F8/65 ,  G06K7/10861 ,  H05B33/08 ,  H05B33/0803 ,  H05B33/0845 ,  H05B33/0857 ,  H05B37/02 ,  Y02B20/342 ,  Y02B20/343 ,  Y02B20/383 ,  Y02B20/48

摘要： An intelligent light bulb is provided as well as a method, devices and computer program product of configuring such an intelligent light bulb. The intelligent light bulb comprises an LED lighting element and a programmable controller. The programmable controller comprises a memory module having stored therein firmware including instructions for controlling operations of the LED lighting element, where the memory module including a passive memory on which at least a portion of the firmware is stored. The passive memory component of the memory module is responsive to a signal carrying firmware update information received over a wireless communication link from a device external to the intelligent light bulb for causing a firmware update process to be performed to modify the instructions of the firmware based on the update information carried by the signal. The programmable controller also includes a processing unit in communication with the memory module for operating the LED lighting element at least in part in accordance with the instructions of the firmware. Advantageously, the proposed intelligent light bulb can be configured using the signal carrying the firmware update information. In some embodiments, this may allow modifications of certain operating characteristic of the intelligent light bulb to be performed after manufacturing, including modifications pertaining to light color emitted and/or manner of operating the light bulb.

公开(公告)号：US10082284B2

公开(公告)日：2018-09-25

申请号：US15880369

申请日：2018-01-25

申请人： Frank Shum

发明人： Frank Shum

IPC分类号： F21V29/77 ,  F21V29/71 ,  H05B33/08 ,  F21V23/00 ,  F21K9/238 ,  F21V29/83 ,  F21V29/74 ,  F21Y115/10 ,  F21K9/68 ,  F21K9/65 ,  F21K9/232 ,  F21K9/235

CPC分类号： F21V29/773 ,  F21K9/232 ,  F21K9/235 ,  F21K9/238 ,  F21K9/65 ,  F21K9/68 ,  F21K9/69 ,  F21V23/005 ,  F21V23/006 ,  F21V23/009 ,  F21V29/713 ,  F21V29/74 ,  F21V29/83 ,  F21Y2105/18 ,  F21Y2115/10 ,  H05B33/0812 ,  H05B33/0815 ,  H05B33/0824 ,  H05B33/0845 ,  Y02B20/343

摘要： Apparatus and associated methods relate to development of a LED system with high thermal dissipation power relative to the system weight by the inclusion of open regions. The open regions reduce the weight of the optical system while improving airflow. Associated optics are described to efficiently and evenly distribute the light from an LED by tailoring the optical distribution. In addition, circuitry and methods are described to allow for the LED system to operate with existing power sources such as ballast or offline AC voltage sources or both.

公开(公告)号：US20180228008A1

公开(公告)日：2018-08-09

申请号：US15787760

申请日：2017-10-19

申请人： G-Light Technologies Co., Ltd. ,  TGM Technology Co., Ltd.

发明人： Ting-Kuang Yeh

IPC分类号： H05B37/02 ,  F21V29/83 ,  F21V21/26 ,  F21S8/02 ,  H05B33/08

CPC分类号： H05B37/0272 ,  F21S8/026 ,  F21V21/26 ,  F21V29/83 ,  G08B13/22 ,  H05B33/089 ,  Y02B20/343 ,  Y02B20/48

摘要： A multifunctional smart home lamp control and security remote control signal receiver is embedded in the ceiling and displays a plurality of lamp control display zones, sensing display zone, sound zone, human body sensors and sensing adjustment zone and/or camera recorders by facing downward so that a user can easily watch the lamp control status or the security displayed by the LED display lamp on the remote control receiver; a rear surface disposed with an electric zone having a plurality of wire sockets, a fuse zone and an electrifying zone. The electrifying zone is provided for introducing supply mains, and power is provided to a plurality of lamps through the wire sockets of the electric zone so as to provide the multifunctional smart home lamp control and security remote control signal receiver simultaneously handing lamp control status and security status in home life.

公开(公告)号：US20180209626A1

公开(公告)日：2018-07-26

申请号：US15935139

申请日：2018-03-26

申请人： HUBBELL INCORPORATED

发明人： Pritam Yadav ,  T. Warren Weeks ,  E. Thomas Hill

IPC分类号： F21V23/00 ,  H05B37/02 ,  H05B33/08 ,  F21V23/04 ,  F21S2/00 ,  F21V21/005 ,  F21Y115/10 ,  F21Y103/10

CPC分类号： F21V23/005 ,  F21S2/005 ,  F21V21/005 ,  F21V23/04 ,  F21V23/0442 ,  F21Y2103/10 ,  F21Y2115/10 ,  H05B33/0809 ,  H05B33/0812 ,  H05B33/0857 ,  H05B33/0872 ,  H05B37/0272 ,  Y02B20/343

摘要： A light fixture having master circuit boards and one or more LED circuit boards connectable in various alternative combinations for light fixtures having alternative lengths, the master board including a switch and AC-DC rectifier and the LED boards including linear AC drivers and one or more LED arrays, the switch on the master board controlling the linear AC drivers on the LED board or boards.

公开(公告)号：US10008150B2

公开(公告)日：2018-06-26

申请号：US15478935

申请日：2017-04-04

申请人： Sony Corporation

发明人： Tetsuo Minami ,  Junichi Yamashita

IPC分类号： H01L27/32 ,  G09G3/3233 ,  G09G3/00 ,  H05B33/08

CPC分类号： G09G3/3233 ,  G09G3/00 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0256 ,  G09G2320/0233 ,  H01L27/326 ,  H01L27/3276 ,  H05B33/0896 ,  Y02B20/343

摘要： A light-emitting device comprising an emitting unit including at least two emitting elements, a driving unit configured to control the emitting unit, and a capacitor unit formed over the driving unit. A shield layer may be located between the two emitting elements. In one example, the capacitor unit is formed at a level higher than a level of the driving unit, and a shield layer that is located between the two emitting elements is formed at a level that is higher than the level of the driving unit and equal to or lower than the level of the capacitor unit.

公开(公告)号：US09998026B2

公开(公告)日：2018-06-12

申请号：US14373227

申请日：2013-01-21

申请人： OSRAM SYLVANIA INC. ,  Bernhard Siessegger ,  Marijan Kostrun

发明人： Bernhard Siessegger ,  Marijan Kostrun

IPC分类号： G01R31/44 ,  H02M7/06 ,  H05B37/02 ,  H05B33/08 ,  H01L25/16 ,  H05B41/39 ,  H01L27/15 ,  H01L33/62 ,  H01L25/075 ,  G01R31/26 ,  G01R31/40 ,  G01R31/02

CPC分类号： H02M7/06 ,  G01R31/028 ,  G01R31/2633 ,  G01R31/2635 ,  G01R31/40 ,  G01R31/44 ,  H01L25/0753 ,  H01L25/167 ,  H01L27/156 ,  H01L33/62 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48247 ,  H01L2924/12032 ,  H01L2924/12044 ,  H01L2924/1301 ,  H01L2924/13033 ,  H01L2924/1305 ,  H01L2924/13091 ,  H05B33/0803 ,  H05B33/0806 ,  H05B33/0812 ,  H05B33/0815 ,  H05B33/0821 ,  H05B33/0827 ,  H05B33/083 ,  H05B33/0845 ,  H05B33/0848 ,  H05B33/0851 ,  H05B33/086 ,  H05B33/0884 ,  H05B33/0893 ,  H05B37/02 ,  H05B37/0209 ,  H05B41/39 ,  Y02B20/343 ,  Y02B20/345 ,  Y02B20/346 ,  Y02B20/347 ,  Y10T307/615 ,  H01L2924/00014 ,  H01L2924/00

摘要： Techniques are disclosed for assessing the conditions of LEDs and power supplies of solid state lighting systems. The techniques can be used, for example, to measure the capacitance of an output capacitor C in a switch-mode power supply (SMPS), and to measure the condition of the LEDs being driven by that power supply. In some cases, this assessment can be implemented in a lighting controller that controls the lighting system, which may be configured to simultaneously determine C and the conditions of LEDs. In one example case, the techniques can be implemented, for instance, in a micro-controller operating the lighting system. A lighting system implementing the techniques can be periodically assessed so as to provide real-time diagnostic capability. Numerous example embodiments of SMPS LED lighting systems will be apparent in light of this disclosure.

公开(公告)号：US20180098398A1

公开(公告)日：2018-04-05

申请号：US15835119

申请日：2017-12-07

申请人： FAIRCHILD KOREA SEMICONDUCTOR LTD.

发明人： Hyunchul EUM ,  Youngjong KIM ,  Kuo-Hsien HUANG ,  Chih-Chun CHUANG ,  Young Mo YANG ,  Young Je LEE ,  Moon Ho CHOI ,  Moon Sik SONG

IPC分类号： H05B33/08

CPC分类号： H05B33/0818 ,  H05B33/0809 ,  H05B33/0812 ,  H05B33/0815 ,  H05B33/0824 ,  H05B33/0845 ,  H05B33/0851 ,  Y02B20/343

摘要： A phase-cut dimming control system according to the embodiment includes a phase angle detector configured to detect a phase angle of an input voltage generated by phase-cut dimming, a feedback signal generator configured to generate a first reference signal corresponding to the detected phase angle, and generate an initial feedback signal based on a detection signal corresponding to power supplied to a load and the first reference signal, a feedback signal modulator configured to modulate the initial feedback signal and generate a feedback signal, a power transmission controller configured to generate a control signal which controls power transmission according to the feedback signal, and a power transmission circuit configured to transmit power to the load according to the control signal.

公开(公告)号：US09781788B1

公开(公告)日：2017-10-03

申请号：US15087062

申请日：2016-03-31

申请人： Infineon Technologies AG

发明人： Fabrizio Cortigiani ,  Andrea Logiudice ,  Maurizio Galvano ,  Marco Pamato

IPC分类号： H05B33/00 ,  H05B33/08 ,  H02M3/156 ,  H02M1/08

CPC分类号： H05B33/0815 ,  G05F1/56 ,  H02M1/08 ,  H02M3/156 ,  H05B33/0812 ,  Y02B20/343 ,  Y02B20/345

摘要： In one example, a method includes generating, by a current source of a device, a first portion of a power signal that drives one or more load elements. In this example, a second portion of the power signal is generated by one or more components that are external to the device and are in parallel to the current source such that the second portion of the power signal does not flow through the current source.