Patents by Inventor Qun Luo
Qun Luo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10818464Abstract: An external grid-controlled hot cathode array electron gun, including an insulated cathode base, a filament, a plurality of hot cathode emission elements, and a grid-controlled structure is disclosed. In one aspect, the grid-controlled structure includes an insulated grid-controlled structure body and a plurality of through holes. One side of the grid-controlled structure body abuts against the cathode base to clamp the filament between the grid-controlled structure body and the cathode base and the plurality of hot cathode emission elements are inserted into the plurality of through holes respectively.Type: GrantFiled: December 27, 2019Date of Patent: October 27, 2020Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Wenhui Huang, Qingxiu Jin, Cong Xu, Luming Zhang, Donghai Liu, Cheng Song, Peidong Wu, Qun Luo, Chengjun Tan, Shuo Wang
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Patent number: 10748731Abstract: An electron gun, an X-ray source and a CT device are provided. The electron gun includes a body having a first end portion and a second end portion opposite to each other, wherein the first end portion is a connecting end portion; an internal cavity is formed in the body and has an opening positioned on the second end portion; a cathode, a grid, a compensation electrode and a focus electrode, orderly arranged in the internal cavity in a direction from the first end portion to the second end portion.Type: GrantFiled: December 28, 2017Date of Patent: August 18, 2020Assignees: TSINGHUA UNIVERSITY, NUCTECH COMPANY LIMITEDInventors: Wenhui Huang, Dongsheng Zhang, Qingxiu Jin, Chengjun Tan, Donghai Liu, Qun Luo, Chuanxiang Tang
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Patent number: 10732342Abstract: A luminaire (1) is disclosed comprising at least one optical chamber (10) delimited by a light exit window (11) and a curved reflective surface (15) extending from the light exit window to a mounting surface (17) extending from the curved reflective surface towards the light exit window. Each optical chamber comprises a light source (20) mounted on the mounting surface; and a light guide (30) extending across part of the optical chamber. The light guide comprises a total internal reflection major surface (40) facing the light exit window; a further major surface (50) facing the curved reflective surface, said further major surface comprising a light outcoupling portion (51) comprising a plurality of light outcoupling structures (53); a first edge surface (60) optically coupled to the light source; and a further edge surface (70) opposite the first edge surface arranged to direct light towards the curved reflective surface.Type: GrantFiled: August 1, 2017Date of Patent: August 4, 2020Assignee: SIGNIFY HOLDING B.V.Inventors: Qin Li, Qun Luo, Kang Li, Zhengyi Zheng, Min Chen
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Publication number: 20200217467Abstract: A lighting system has a set of linear lighting elements and a set of suspension elements. Each suspension element comprises an upper fixing part and a lower connection part facing downwardly for making electrical and mechanical connection to an upward facing connector on a top face of an end of a linear lighting element. This enables a simple a push fit connection of the lighting elements to the suspension elements, after they have been suspended from a support structure above them.Type: ApplicationFiled: August 16, 2018Publication date: July 9, 2020Inventors: JUN LU, HAO ZHANG, QUN LUO, LEI SUI, GANG WANG, XINGPENG YANG, ZHENYI ZHENG
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Publication number: 20200211806Abstract: An external grid-controlled hot cathode array electron gun, including an insulated cathode base, a filament, a plurality of hot cathode emission elements, and a grid-controlled structure is disclosed. In one aspect, the grid-controlled structure includes an insulated grid-controlled structure body and a plurality of through holes. One side of the grid-controlled structure body abuts against the cathode base to clamp the filament between the grid-controlled structure body and the cathode base and the plurality of hot cathode emission elements are inserted into the plurality of through holes respectively.Type: ApplicationFiled: December 27, 2019Publication date: July 2, 2020Inventors: Wenhui Huang, Qingxiu Jin, Cong Xu, Luming Zhang, Donghai Liu, Cheng Song, Peidong Wu, Qun Luo, Chengjun Tan, Shuo Wang
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Publication number: 20200170097Abstract: A distributed X-ray light source comprises: a plurality of arranged cathode assemblies used for emitting electron beams; an anode target used for receiving the electron beams emitted by the cathode assemblies; and compensation electrodes and focusing electrodes provided in sequence between the plurality of the cathode assemblies and the anode target, the compensation electrode being used for adjusting electric field strength at two ends of a grid structure in each cathode assembly, and the focusing electrode being used for focusing the electron beams emitted by the cathode assemblies, wherein the focusing electrode corresponding to at least one cathode assembly in the plurality of the cathode assemblies comprises a first electrode and a second electrode which are separately provided, and an electron beam channel is formed between the first electrode and the second electrode.Type: ApplicationFiled: May 29, 2018Publication date: May 28, 2020Applicants: Nuctech Company Limited, TSINGHUA UNIVERSITYInventors: Chengjun TAN, Wenhui HUANG, Chuanxiang TANG, Qingxiu JIN, Dongsheng ZHANG, Qun LUO, Donghai LIU, Luming ZHANG, Peidong WU
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Publication number: 20200168426Abstract: An anode target comprises: a plurality of target structures, used for receiving an electron beam emitted by a cathode to generate a ray, the plurality of target structures being of three-dimensional structures having bevels; a copper cooling body, used for bearing the target structures and comprising an oxygen-free copper cooling body; a cooling oil tube, used for cooling the anode target; and a shielding layer, used for achieving a shielding effect and comprising a tungsten shielding layer. The anode target, the ray light source, the computed tomography scanning device, and the imaging method in the present application are able to enable all target spots on the anode target to be distributed on a straight line, imaging quality of a ray system is improved, and complexity of an imaging system is reduced.Type: ApplicationFiled: June 1, 2018Publication date: May 28, 2020Applicants: Nuctech Company Limited, TSINGHUA UNIVERSITYInventors: Chengjun TAN, Wenhui HUANG, Chuanxiang TANG, Qingxiu JIN, Dongsheng ZHANG, Qun LUO, Donghai LIU, Luming ZHANG, Peidong WU
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Publication number: 20200168428Abstract: An anode target, a ray light source, a computed tomography device, and an imaging method, which relate to the technical field of ray processing. The anode target comprises a first anode target, a second anode target, and a ceramic plate. The first anode target is used for enabling, by means of a first voltage carried on the first anode target, an electron beam emitted by a cathode to generate a first ray on a target spot of the first anode target. The second anode target is used for enabling, by means of a second voltage carried on the second anode target, an electron beam emitted by the cathode to generate a second tray on a target spot of the second anode. The ceramic plate is used for isolating the first anode target from the second anode target. By means of the anode target, the ray light source, the computed tomography device and the imaging method, dual-energy distributed ray imaging data can be provided and the imaging quality of a ray system can be improved.Type: ApplicationFiled: September 13, 2018Publication date: May 28, 2020Applicants: Nuctech Company Limited, TSINGHUA UNIVERSITYInventors: Chengjun TAN, Wenhui HUANG, Chuanxiang TANG, Qingxiu JIN, Dongsheng ZHANG, Qun LUO, Donghai LIU, Luming ZHANG, Peidong WU
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Patent number: 10629402Abstract: A cathode assembly, an X-ray source and a CT device are provided. The cathode assembly includes a ceramic plug having a first and second end portions. Four wiring terminals and a protruding positioning part are provided on the first end portion. An internal cavity is formed in the ceramic plug, and a cathode is provided therein. The cathode has a filament with a positive and negative electrode leads. A grid is provided on the second end portion and has a grid voltage signal line. The cathode has a cathode surface lead. The positive electrode lead, the negative electrode lead, the grid voltage signal line and the cathode surface lead are electrically connected to one of the wiring terminals, respectively. The ceramic socket has four wiring tubes which may be electrically connected with the four wiring terminals.Type: GrantFiled: December 28, 2017Date of Patent: April 21, 2020Assignees: TSINGHUA UNIVERSITY, NUCTECH COMPANY LIMITEDInventors: Wenhui Huang, Dongsheng Zhang, Qingxiu Jin, Chengjun Tan, Donghai Liu, Qun Luo, Chuanxiang Tang
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Publication number: 20200032983Abstract: A luminaire (100) comprises an elongate support member (101) which carries at least one light source (102). The elongate support member extends lengthways between opposing end portions. Spacer elements (103) respectively extend from the opposing end portions and support a reflector canopy (104) which extends over the elongate support member. The at least one light source faces the reflector canopy. The reflector canopy is foldable in a direction normal to the lengthways extension of the elongate support member and/or is foldable in the lengthways direction together with the support member. Further provided is a modular ceiling comprising at least one said luminaire.Type: ApplicationFiled: March 1, 2018Publication date: January 30, 2020Inventors: MIN CHEN, QIN LI, ZHEN YI ZHENG, LEI SUI, QUN LUO
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Publication number: 20190170927Abstract: A luminaire (1) is disclosed comprising at least one optical chamber (10) delimited by a light exit window (11) and a curved reflective surface (15) extending from the light exit window to a mounting surface (17) extending from the curved reflective surface towards the light exit window. Each optical chamber comprises a light source (20) mounted on the mounting surface; and a light guide (30) extending across part of the optical chamber. The light guide comprises a total internal reflection major surface (40) facing the light exit window; a further major surface (50) facing the curved reflective surface, said further major surface comprising a light outcoupling portion (51) comprising a plurality of light outcoupling structures (53); a first edge surface (60) optically coupled to the light source; and a further edge surface (70) opposite the first edge surface arranged to direct light towards the curved reflective surface.Type: ApplicationFiled: August 1, 2017Publication date: June 6, 2019Inventors: QIN LI, QUN LUO, KANG LI, ZHENYI ZHENG, MIN CHEN
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Publication number: 20180209593Abstract: A lighting device is disclosed that comprises a glass tube (10); a solid state lighting assembly in said glass tube, said assembly comprising an electrically insulating optical film (20) comprising at least one arcuate portion lining a part (12) of the inner surface of the glass tube, wherein the glass tube further comprises a further part (14) defining a light exit portion; and a plurality of solid state lighting elements (32) on a carrier (30), said carrier contacting said optical film; a thermally conductive member (40, 42) in between at least a part of the solid state lighting assembly and the glass tube for thermally coupling the solid state lighting elements to the glass tube; and a transparent or translucent electrically insulating cover (50, 60) contacting the electrically insulating optical film and covering the solid state lighting elements. A luminaire including such a lighting device and a lighting device assembly method are also disclosed.Type: ApplicationFiled: March 19, 2018Publication date: July 26, 2018Inventors: Qun LUO, Yue Jun SUN, Xingpeng YANG, Min CHEN, Dirk GEHRELS, Ximei LIAN, Mark SIPKES, Martinus Hermanus Wilhelmus Maria VAN DELDEN
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Publication number: 20180190464Abstract: An electron gun, an X-ray source and a CT device are provided. The electron gun includes a body having a first end portion and a second end portion opposite to each other, wherein the first end portion is a connecting end portion; an internal cavity is formed in the body and has an opening positioned on the second end portion,d a cathode, a grid, a compensation electrode and a focus electrode, orderly arranged in the internal cavity in a direction from the first end portion to the second end portion.Type: ApplicationFiled: December 28, 2017Publication date: July 5, 2018Inventors: Wenhui HUANG, Dongsheng ZHANG, Qingxiu JIN, Chengjun TAN, Donghai LIU, Qun LUO, Chuanxiang TANG
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Publication number: 20180190465Abstract: A cathode assembly, an X-ray source and a CT device are provided. The cathode assembly includes a ceramic plug having a first and second end portions. Four wiring terminals and a protruding positioning part are provided on the first end portion. An internal cavity is formed in the ceramic plug, and a cathode is provided therein. The cathode has a filament with a positive and negative electrode leads. A grid is provided on the second end portion and has a grid voltage signal line. The cathode has a cathode surface lead. The positive electrode lead, the negative electrode lead, the grid voltage signal line and the cathode surface lead are electrically connected to one of the wiring terminals, respectively. The ceramic socket has four wiring tubes which may be electrically connected with the four wiring terminals.Type: ApplicationFiled: December 28, 2017Publication date: July 5, 2018Inventors: Wenhui HUANG, Dongsheng ZHANG, Qingxiu JIN, Chengjun TAN, Donghai LIU, Qun LUO, Chuanxiang TANG
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Patent number: 9958118Abstract: A lighting device including a glass tube; a solid state lighting assembly in said glass tube, said assembly including an electrically insulating optical film having at least one arcuate portion lining a part of the inner surface of the glass tube, wherein the glass tube includes a further part defining a light exit portion; and a plurality of solid state lighting elements on a carrier, said carrier contacting said optical film; a thermally conductive member in between at least a part of the solid state lighting assembly and the glass tube for thermally coupling the solid state lighting elements to the glass tube; and a transparent or translucent electrically insulating cover contacting the electrically insulating optical film and covering the solid state lighting elements. A luminaire including such a lighting device and a lighting device assembly method are also disclosed.Type: GrantFiled: June 13, 2014Date of Patent: May 1, 2018Assignee: PHILIPS LIGHTING HOLDING B.V.Inventors: Qun Luo, Yue Jun Sun, Xingpeng Yang, Min Chen, Dirk Gehrels, Ximei Lian, Mark Eduard Johan Sipkes, Martinus Hermanus Wilhelmus Maria Van Delden
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Publication number: 20180016456Abstract: The present invention discloses a polymer-metal compound composite ink, a preparation method and application thereof. The composite ink comprises: at least one polymer; at least one metal compound material, the metal compound material being selected from polyoxometalate compounds and nanocrystalline metal oxides; at least one solvent which is used for forming a disperse system in the form of a uniform fluid together with the remaining components in the composite ink. The present invention also discloses a method for preparing the composite ink. The composite ink of the present invention is easily available in raw material, easy to prepare and low in cost, and can be manufactured into a composite thin film by spin-coating, printing or in other ways.Type: ApplicationFiled: December 17, 2015Publication date: January 18, 2018Inventors: Yiling Wang, Qun Luo, Na Wu, Changqi Ma
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Publication number: 20160138767Abstract: A lighting device is disclosed that comprises a glass tube (10); a solid state lighting assembly in said glass tube, said assembly comprising an electrically insulating optical film (20) comprising at least one arcuate portion lining a part (12) of the inner surface of the glass tube, wherein the glass tube further comprises a further part (14) defining a light exit portion; and a plurality of solid state lighting elements (32) on a carrier (30), said carrier contacting said optical film; a thermally conductive member (40, 42) in between at least a part of the solid state lighting assembly and the glass tube for thermally coupling the solid state lighting elements to the glass tube; and a transparent or translucent electrically insulating cover (50, 60) contacting the electrically insulating optical film and covering the solid state lighting elements. A luminaire including such a lighting device and a lighting device assembly method are also disclosed.Type: ApplicationFiled: June 13, 2014Publication date: May 19, 2016Inventors: Qun LUO, Yue Jun SUN, Xingpeng YANG, Min CHEN, Dirk GEHRELS, Ximei LIAN, Mark Eduard Johan SIPKES, Martinus Hermanus Wilhelmus Maria VAN DELDEN
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Patent number: 9233995Abstract: Quinazoline derivatives represented by general formula (1) and quinazoline complexes as protein kinase inhibitors, and their preparation methods are provided. Wherein, in general formula (1), at least one of R and R? is a group containing an atom capable of coordinating with noble metals, m and n are either the same or different and are integers from 0 to 5. Said quinazoline complex as protein kinase inhibitor is formed by coordination compound containing noble metal and said quinazoline derivative ligand capable of coordinating with noble metal in the coordination compound.Type: GrantFiled: October 27, 2011Date of Patent: January 12, 2016Assignee: INSTITUTE OF CHEMISTRY, CHINESE ACADEMY OF SCIENCESInventors: Fuyi Wang, Qun Luo, Liyun Ji, Wei Zheng, Shuang Lv, Xianchan Li
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Publication number: 20130225811Abstract: Quinazoline derivatives represented by general formula (1) and quinazoline complexes as protein kinase inhibitors, and their preparation methods are provided. Wherein, in general formula (1), at least one of R and R? is a group containing an atom capable of coordinating with noble metals, m and n are either the same or different and are integers from 0 to 5. Said quinazoline complex as protein kinase inhibitor is formed by coordination compound containing noble metal and said quinazoline derivative ligand capable of coordinating with noble metal in the coordination compound.Type: ApplicationFiled: October 27, 2011Publication date: August 29, 2013Applicant: Institute of Chemistry, Chinese Academy of ScienceInventors: Fuyi Wang, Qun Luo, Liyun Ji, Wei Zheng, Shuang Lv, Xianchan Li