Patents by Inventor Xilei Luo
Xilei 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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Publication number: 20140056412Abstract: Disclosed is an integrated flying-spot X-ray apparatus comprising a ray generator configured to generate the X-ray, a revolving collimator device provided thereon with at least one aperture and arranged to be rotatable about the ray generator, a frameless torque motor configured to drive the revolving collimator device to rotate about the ray generator, and a cooling device configured to cool the ray generator, wherein the ray generator, the revolving collimator device, the frameless torque motor and the cooling device are mounted on an integrated mounting frame. Compared with the prior art, the integrated flying-spot X-ray apparatus according to the present disclosure has a simple and compact structure and is used as a kernel apparatus for fields of safety inspection and medical treatment.Type: ApplicationFiled: August 21, 2013Publication date: February 27, 2014Inventors: Zhiqiang Chen, Ziran Zhao, Wanlong Wu, Xilei Luo, Guangwei Ding, Yingkang Jin, Le Tang, Fuhua Ding, Bin Sang, Shuo Cao, Zhimin Zheng
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Publication number: 20140050305Abstract: Embodiments include an X-ray generator including a radiation device installation housing and an X-ray generator. In various embodiments, the radiation device installation housing comprises a housing body, a flange fixedly provided on an inner wall of the housing body and shaped in circular and a compensation device fixedly or movably connected with the flange in a liquid tight manner; a liquid receiving cavity for receiving an insulating liquid formed between one side of two opposite sides of the compensation device and the inner wall of the housing body as well as the flange; a compensation device moving space formed between another side of the two opposite sides of the compensation device opposed to the inner wall of the housing body and an inner wall of the flange.Type: ApplicationFiled: December 31, 2012Publication date: February 20, 2014Applicant: Nuctech Company LimitedInventors: Ziran Zhao, Zhiqiang Chen, Xilei Luo, Fuhua Ding, Wanlong Wu, Zhimin Zheng
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Patent number: 8590406Abstract: Disclosed is a millimeter-wave receiving device. The device includes at least one radiometer; and a positioning assembly for holding the radiometer, wherein the positioning assembly comprises: a first positioning member having a first surface; a second positioning member having a second surface, the first surface of the first positioning member and the second surface of the second positioning member holding the radiometer in opposite to each other. With the configuration according to the present invention, the at least one radiometer in the millimeter-wave receiving device can be located in all of freedoms on basis of various design requirements of the radiation path to ensure that the radiometer can be arranged in desired receiving positions.Type: GrantFiled: December 28, 2010Date of Patent: November 26, 2013Assignees: Tsinghua University, Nuctech Company LimitedInventors: Zhiqiang Chen, Yuanjing Li, Ziran Zhao, Yinong Liu, Wanlong Wu, Xilei Luo, Zhimin Zheng, Dong Lin, Zongjun Shen, Shuo Cao
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Patent number: 8513615Abstract: The present invention discloses a millimeter-wave inspection apparatus. The millimeter-wave inspection apparatus comprises: optics devices, configured to receive millimeter-wave energy radiated from an object to be inspected and focus the received millimeter-wave energy; a radiometer receiving device configured to receive the focused millimeter-wave energy and transform the millimeter-wave energy into electrical signal; and an imaging device configured to generate a temperature image of the object to be inspected based on the electrical signal. Compared with the prior art, the millimeter-wave inspection apparatus of the present invention has a simple and compact structure; it would not be harmful to the human health by employing the passive millimeter-wave human body security inspection technology. With the above configuration, the contraband items to be concealed within the human clothing can be efficiently and effectively detected.Type: GrantFiled: December 29, 2010Date of Patent: August 20, 2013Assignees: Tsinghua University, Nuctech Company LimitedInventors: Zhiqiang Chen, Ziran Zhao, Yuanjing Li, Wanlong Wu, Yinong Liu, Li Zhang, Dong Lin, Zongjun Shen, Xilei Luo, Zhimin Zheng, Yingkang Jin, Shuo Cao, Bin Sang
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Publication number: 20120288066Abstract: Disclosed is a scanning device using radiation beam for backscatter imaging. The scanning device includes a radiation source; a stationary shield plate and a rotary shield body positioned respectively between the radiation source and the subject to be scanned, wherein the stationary shield plate is fixed relative to the radiation source, and the rotary shield body is rotatable relative to the stationary shield plate. The ray passing area permitting the rays from the radiation source to pass through the stationary shield plate is provided on the stationary shield plate, and ray incidence area and ray exit area are respectively provided on the rotary shield body. During the process of the rotating and scanning of the rotary shield body, the ray passing area of the stationary shield plate intersects consecutively with the ray incidence area and the ray exit area of the rotary shield body to form scanning collimation holes. Further, a scanning method using radiation beam for backscatter imaging is also provided.Type: ApplicationFiled: June 28, 2010Publication date: November 15, 2012Applicants: TSINGHUA UNIVERSITY, NUCTECH COMPANY LIMITEDInventors: Kejun Kang, Zhiqiang Chen, Yuanjing Li, Ziran Zhao, Yinong Liu, Wanlong Wu, Dong Lin, Le Tang, Chao Tu, Zongjun Shen, Guangwei Ding, Yingkang Jin, Xilei Luo, Shuo Cao
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Publication number: 20120085909Abstract: The present invention discloses a millimeter-wave inspection apparatus. The millimeter-wave inspection apparatus comprises: optics devices, configured to receive millimeter-wave energy radiated from an object to be inspected and focus the received millimeter-wave energy; a radiometer receiving device configured to receive the focused millimeter-wave energy and transform the millimeter-wave energy into electrical signal; and an imaging device configured to generate a temperature image of the object to be inspected based on the electrical signal. Compared with the prior art, the millimeter-wave inspection apparatus of the present invention has a simple and compact structure; it would not be harmful to the human health by employing the passive millimeter-wave human body security inspection technology. With the above configuration, the contraband items to be concealed within the human clothing can be efficiently and effectively detected.Type: ApplicationFiled: December 29, 2010Publication date: April 12, 2012Applicants: Nuctech Company Limited, Tsinghua UniversityInventors: Zhiqiang Chen, Ziran Zhao, Yuanjing Li, Wanlong Wu, Yinong Liu, Li Zhang, Dong Lin, Zongjun Shen, Xilei Luo, Zhimin Zheng, Yingkang Jin, Shu Cao, Bin Sang
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Publication number: 20120011947Abstract: Disclosed is a millimeter-wave receiving device. The device includes at least one radiometer; and a positioning assembly for holding the radiometer, wherein the positioning assembly comprises: a first positioning member having a first surface; a second positioning member having a second surface, the first surface of the first positioning member and the second surface of the second positioning member holding the radiometer in opposite to each other. With the configuration according to the present invention, the at least one radiometer in the millimeter-wave receiving device can be located in all of freedoms on basis of various design requirements of the radiation path to ensure that the radiometer can be arranged in desired receiving positions.Type: ApplicationFiled: December 28, 2010Publication date: January 19, 2012Inventors: Zhiqiang Chen, Yuanjing Li, Ziran Zhao, Yinong Liu, Wanlong Wu, Xilei Luo, Zhimin Zheng, Dong Lin, Zongjun Shen, Shuo Cao
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Patent number: 8066102Abstract: A lifting apparatus includes a vertical guide device, a turntable device which is movable along the vertical guide device upwards or downwards, and a first driving device which drives the turntable device moving in an upward and downward direction guided by the vertical guide device. The turntable device includes a bracket which is slidably engaged with the vertical guide device and projects perpendicularly toward a side of the vertical guide device, a turntable which is rotatably provided on the bracket, and a second driving device which rotates the turntable on the bracket.Type: GrantFiled: September 22, 2006Date of Patent: November 29, 2011Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Xilei Luo, Kejun Kang, Yinong Liu, Yuanjing Li, Zhiqiang Chen, Wanlong Wu, Yulan Li, Li Zhang, Ziran Zhao, Bin Sang, Hailin Wang
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Patent number: 7942576Abstract: The present invention relates to an adjusting positioner for a radiation device, comprising: a clamping device detachably connected to the radiation device to clamp said radiation device; a supporter to which said clamping device is connected and a slide path is defined therebetween, wherein the clamping device clamping said radiation device is movable along said slide path in a predetermined direction; and an adjusting device coupled with said clamping device so as to drive said clamping device to move along said slide path. Since the present invention employs above technical solution, it is easy to adjust the position of the radiation device for example, X-ray device, so that the precisely positioning for the radiation device is achieved and a satisfying positioning accuracy is able to obtain.Type: GrantFiled: June 1, 2009Date of Patent: May 17, 2011Assignees: Tsinghua University, Nuctech Company LimitedInventors: Ziran Zhao, Yuanjing Li, Wanlong Wu, Yulan Li, Xilei Luo, Bin Sang, Zhimin Zheng, Shuo Cao, Hailin Wang
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Patent number: 7855352Abstract: A radiation inspection system includes a shielding door device for a radiation inspection system, comprising a door body, two guides located on two opposite sides of the door body, a rack, a gear and a motor. The two guides are fixed on an upper surface of a frame and the door body is movably connected to the two guides via bearings. The rack is fixed on a bottom of the door body and meshed with the gear. The gear is coupled with a shaft of the motor fixed on a lower surface of the frame. This configuration is advantageous in automatic and complete shielding of the radiation inspection system without interference. In addition the shielding door can be controlled intelligently, so that accidental radiation leakage can be prevented.Type: GrantFiled: September 19, 2006Date of Patent: December 21, 2010Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Zhiqiang Chen, Yuanjing Li, Yinong Liu, Haifeng Hu, Wanlong Wu, Yulan Li, Xilei Luo, Li Zhang, Ziran Zhao, Bin Sang, Hailin Wang
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Patent number: 7852981Abstract: Disclosed is a detector device, comprising: an adjustable positioning base and a detector module. The adjustable positioning base includes: a horizontal plate being able to fixedly connect onto an annular rotation table or disk; and a vertical plate extending from the horizontal plate and generally perpendicular to the horizontal plate. A horizontal through long groove is provided at one side of the vertical plate, and the detector module is able to fixedly installed in said horizontal through long groove of the adjustable positioning base. By employing the technical solution defined in the present invention, the detector device has a compact structure, and precision adjustment and positioning for the detector device can be achieved. In addition, the present invention also provides a CT inspection system having the above detector device.Type: GrantFiled: December 23, 2008Date of Patent: December 14, 2010Assignees: Tsinghua University, Nuctech Company LimitedInventors: Xilei Luo, Zhiqiang Chen, Yuanjing Li, Yulan Li, Yinong Liu, Li Zhang, Ziran Zhao, Wanlong Wu, Shuqing Zhao, Bin Sang, Hailin Wang, Shuo Cao, Dong Lin, Zhimin Zheng
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Publication number: 20090310751Abstract: The present invention relates to an adjusting positioner for a radiation device, comprising: a clamping device detachably connected to the radiation device to clamp said radiation device; a supporter to which said clamping device is connected and a slide path is defined therebetween, wherein the clamping device clamping said radiation device is movable along said slide path in a predetermined direction; and an adjusting device coupled with said clamping device so as to drive said clamping device to move along said slide path. Since the present invention employs above technical solution, it is easy to adjust the position of the radiation device for example, X-ray device, so that the precisely positioning for the radiation device is achieved and a satisfying positioning accuracy is able to obtain.Type: ApplicationFiled: June 1, 2009Publication date: December 17, 2009Inventors: Ziran Zhao, Yuanjing Li, Wanlong Wu, Yulan Li, Xilei Luo, Bin Sang, Zhimin Zheng, Shuo Cao, Hailin Wang
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Patent number: 7634055Abstract: Disclosed is a method and a device for security-inspection of liquid articles with radiations, which relate to the field of radiation inspection technology. The method comprises steps of acquiring original environment information, emitting radiation beams to transmit the liquid articles, receiving the radiation beams transmitted through the liquid articles to form multi-angle projection data, computing a radiation absorption coefficient of the liquid articles to be detected by inverse operation of the multi-angle projection data, based on the initial environmental information and the uniformity of the liquid articles, and comparing the radiation absorption coefficients with the preset data to get the relevant information of the liquid articles. Comparing with the prior art, the present invention is not subjected to affection of cuter package of the liquid article, and is advantageous of high anti-jamming high accuracy, high safety and reliability, low cost and small size.Type: GrantFiled: December 5, 2006Date of Patent: December 15, 2009Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Haifeng Hu, Yuanjing Li, Kejun Kang, Zhiqiang Chen, Yinong Liu, Yulan Li, Li Zhang, Wanlong Wu, Ziran Zhao, Xilei Luo, Bin Sang
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Publication number: 20090168948Abstract: Disclosed is a detector device, comprising: an adjustable positioning base and a detector module. The adjustable positioning base includes: a horizontal plate being able to fixedly connect onto an annular rotation table or disk; and a vertical plate extending from the horizontal plate and generally perpendicular to the horizontal plate. A horizontal through long groove is provided at one side of the vertical plate, and the detector module is able to fixedly installed in said horizontal through long groove of the adjustable positioning base. By employing the technical solution defined in the present invention, the detector device has a compact structure, and precision adjustment and positioning for the detector device can be achieved. In addition, the present invention also provides a CT inspection system having the above detector device.Type: ApplicationFiled: December 23, 2008Publication date: July 2, 2009Inventors: Xilei Luo, Zhiqiang Chen, Yuanjing Li, Yulan Li, Yinong Liu, Li Zhang, Ziran Zhao, Wanlong Wu, Shuqing Zhao, Bin Sang, Hailin Wang, Shuo Cao, Dong Lin, Zhimin Zheng
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Patent number: 7508918Abstract: A collimator for adjusting an X-ray beam includes: an up-and-down adjustment mechanism; a left-and-right adjustment mechanism, a supporting member; and an adjusting plate connected with the supporting member. The up-and-down adjustment mechanism comprises first rotating nuts, up-and-down moving leading screws threadedly connected with the first rotating nuts, and upper and lower sliding stops located in the supporting member. Each of the leading screws is connected with the upper and lower sliding stops to drive the upper and lower sliding stops, respectively, to vertically move. The left-and-right adjustment mechanism comprises second rotating nuts, horizontally moving leading screws connected with second rotating nuts, and left and right sliding stops located in the supporting member. Each of the horizontally moving leading screws are connected with the left and right sliding stops to drive the left and right sliding stops, respectively, to horizontally move.Type: GrantFiled: September 22, 2006Date of Patent: March 24, 2009Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Yinong Liu, Zhiqiang Chen, Yuanjing Li, Wanlong Wu, Yulan Li, Xilei Luo, Li Zhang, Ziran Zhao, Bin Sang, Hailin Wang
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Patent number: 7508908Abstract: A CT method and an apparatus for liquid safety-detection with a radiation source relate to a radiation imaging detecting technology field. The invention comprises using a radiation source, a detector and data collector, a computer data processor; and the main steps are: 1) a liquid article to be detected being placed onto a rotary platform which is rotatable; 2) the ray emitted from the radiation source passing through the liquid article, and being received and formed into projection data by the detector and data collector; and 3) the projection data being transmitted to the computer data processor, which processes it to obtain the liquid density of the detected article, compares the result with the densities of dangerous articles in a current database, and then visually displays the detected information of the detected liquid article.Type: GrantFiled: November 23, 2005Date of Patent: March 24, 2009Assignees: Tsinghua University, Nuntech Company LimitedInventors: Haifeng Hu, Yuanjing Li, Kejun Kang, Zhiqiang Chen, Yinong Liu, Yulan Li, Li Zhang, Wanlong Wu, Ziran Zhao, Xilei Luo, Bin Sang
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Publication number: 20080232541Abstract: A check process may be performed without rotation of a radiation source or detector. A CT scan security check device may include a radiation source and a detector forming a radiation detection area, a conveyer mechanism conveying an article along a path, and a multidimensional movement mechanism causing a relative displacement between the article and the radiation detection area in a vertical direction and causing the article to rotate about a vertical axis. A CT scan security check method may include: 1) displacing the article relative to the radiation detection area in the vertical direction; 2) rotating the article; 3) during the checked article passing through the radiation detection area, obtaining data regarding a radiation ray that passes through the article; and 4) transmitting the data for a CT arithmetic reconstruction.Type: ApplicationFiled: March 20, 2008Publication date: September 25, 2008Inventors: Kejun Kang, Zhiqiang Chen, Yuanjing Li, Yulan Li, Li Zhang, Yinong Liu, Ziran Zhao, Wanlong Wu, Hailin Wang, Xilei Luo, Bin Sang, Shuo Cao
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Publication number: 20080056443Abstract: Disclosed is a method and a device for security-inspection of liquid articles with radiations, which relate to the field of radiation inspection technology. The method comprises steps of acquiring original environment information, emitting radiation beams to transmit the liquid articles, receiving the radiation beams transmitted through the liquid articles to form multi-angle projection data, computing a radiation absorption coefficient of the liquid articles to be detected by inverse operation of the multi-angle projection data, based on the initial environmental information and the uniformity of the liquid articles, and comparing the radiation absorption coefficients with the preset data to get the relevant information of the liquid articles. Comparing with the prior art, the present invention is not subjected to affection of cuter package of the liquid article, and is advantageous of high anti-jamming high accuracy, high safety and reliability, low cost and small size.Type: ApplicationFiled: December 5, 2006Publication date: March 6, 2008Inventors: Haifeng Hu, Yuanjing Li, Kejun Kang, Zhiqiang Chen, Yinong Liu, Yulan Li, Li Zhang, Wanlong Wu, Ziran Zhao, Xilei Luo, Bin Sang
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Patent number: 7330534Abstract: The present invention discloses a ray beam guiding apparatus, comprising a ray beam guiding box having substantially fan-shaped top and bottom surfaces, defining an inner space, and having open wide and narrow ends; an engaging member joined to the narrow end of the box; a first collimator mounted to the box adjacent to the narrow end for adjusting size/shape of the ray beam in horizontal vertical direction; a second collimator having a calibration slit or grill and mounted to the box adjacent to the wide end; and an adjusting member connecting the engaging member and a ray generator to adjust a distance therebetween. The box can adjust size/shape and centering of the ray beam, so that inspection quality can be improved and thickness of the ray shielding layer can be reduced, the box is applicable to a ray inspection system which performs security inspection of liquid articles.Type: GrantFiled: September 19, 2006Date of Patent: February 12, 2008Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Yulan Li, Yuanjing Li, Zhiqiang Chen, Yinong Liu, Qitian Miao, Wanlong Wu, Ziran Zhao, Xilei Luo, Li Zhang, Bin Sang, Hailin Wang
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Publication number: 20070075073Abstract: The present invention relates to a radiation inspection system discloses a shielding door device for a radiation inspection system, comprising a door body, two guides located on two opposite sides of the door body, a rack, a gear and a motor. The two guides are fixed on an upper surface of a frame and the door body is movably connected to the two guides via bearings. The rack is fixed on a bottom of the door body and meshed with the gear. The gear is coupled with a shaft of the motor fixed on a lower surface of the frame. With the above configuration, the present invention is advantageous in automatic and complete shielding of the radiation inspection system without interference. In addition the shielding door can be controlled intelligently, so that accidental radiation leakage can be prevented.Type: ApplicationFiled: September 19, 2006Publication date: April 5, 2007Inventors: Zhiqiang Chen, Yuanjing Li, Yinong Liu, Haifeng Hu, Wanlong Wu, Yulan Li, Xilei Luo, Li Zhang, Ziran Zhao, Bin Sang, Hailin Wang