Patents by Inventor Liangheng Xu
Liangheng Xu 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: 20180111405Abstract: A micro-optical device for double-sided imaging, a preparation method therefor and an application thereof. The micro-optical device for double-sided imaging comprises a first microlens layer (1), a functional layer (4), a second microlens layer (2) and a miniature graphic layer (3) which are mutually compounded in sequence, the first microlens layer (1) being a first microlens array formed by arranging a plurality of first microlenses (11), and the second microlens layer (2) being a second microlens array formed by arranging a plurality of second microlenses (21); and the functional layer (4) is arranged on the surface of the second microlens layer (2), and a material for the functional layer (4) has a refractive index different from that of a surrounding material.Type: ApplicationFiled: December 9, 2015Publication date: April 26, 2018Inventors: Liangheng Xu, Xiaolei Zhuang, Lanxin Dong, Renshun You
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Patent number: 9292783Abstract: The present invention provides a radio frequency identification electronic tag with diversion-proof function and a process for making the same. The radio frequency identification electronic tag with diversion-proof function is formed of a supporting layer, a release liner, an antenna and a chip, wherein the release liner is bonded to one side of the supporting layer to form an entity, the antenna is bonded to the other side of the release liner, or, the antenna is bonded to the two sides of the entity formed by the supporting layer and the release liner, and is connected via overbridge points on the antenna, the overbridge points run through the supporting layer and the release liner so that antennas at the two sides are switched into conduction; the chip is bonded to the antenna. Once the RFID tag with diversion-proof function is peeled off or transferred, its physical structure will be destroyed and the information contained therein cannot be read, achieving the object of incapable of being reused.Type: GrantFiled: March 20, 2012Date of Patent: March 22, 2016Assignees: SHANGHAI TECHSUN ANTICOUNTERFEITING TECHNOLOGY HOL, SHANGHAI TECHSUN RFID TECHNOLOGY CO., LTD.Inventors: Liangheng Xu, Kai Yang, Yun Gao, Jin Tao, Xiaodong He
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Patent number: 9111471Abstract: The present invention relates to a sheet enabling to form dynamic three-dimensional images and a device for preparing thereof. The sheet comprises a base layer (1), a transparent protective layer (2), a reflective layer (3), and pixel points (4) that can form images. The transparent protective layer (2) is disposed at one side of the base layer (1), the pixel points (4) are embedded in the transparent protective layer (2). The pixel points (4) consist of microlenses (401) tightly closed together. The reflective layer (3) is disposed downbently at a lower part of the microlenses (401), wherein picture-text is recorded in the reflective layer (3). There is an altitude difference H between horizontal positions of two adjacent pixel points (4). Microlenses (401) in any one of pixel point have the same curvature radius, and curvature radius of microlenses (401) in two adjacent pixel points (4) have a difference of 1 to 70 ?m.Type: GrantFiled: August 11, 2009Date of Patent: August 18, 2015Assignee: Shanghai Techsun Anti-Counterfeiting Technology Holding Co., Ltd.Inventors: Liangheng Xu, Aiming Ge, Yun Gao, Kai Yang
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Publication number: 20140326790Abstract: The present invention provides a radio frequency identification electronic tag with diversion-proof function and a process for making the same. The radio frequency identification electronic tag with diversion-proof function is formed of a supporting layer, a release liner, an antenna and a chip, wherein the release liner is bonded to one side of the supporting layer to form an entity, the antenna is bonded to the other side of the release liner, or, the antenna is bonded to the two sides of the entity formed by the supporting layer and the release liner, and is connected via overbridge points on the antenna, the overbridge points run through the supporting layer and the release liner so that antennas at the two sides are switched into conduction; the chip is bonded to the antenna. Once the RFID tag with diversion-proof function is peeled off or transferred, its physical structure will be destroyed and the information contained therein cannot be read, achieving the object of incapable of being reused.Type: ApplicationFiled: March 20, 2012Publication date: November 6, 2014Applicant: SHANGHAI TECHSUN RFID TECHNOLOGY CO., LTD.Inventors: Liangheng Xu, Kai Yang, Yun Gao, Jin Tao, Xiaodong He
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Patent number: 8632849Abstract: An anti-counterfeit film comprising an amphichroic pattern is prepared by (1) mixing a polymerizable liquid crystal material of chiral structure and a photoinitiator, blade-coating the mixture on a base film and then drying; (2) partially exposing the resulting material produced in step (1) using a positioned UV lamp, then drying and exposing in an UV radiation to obtain a desired film. The film prepared by the method has an amphichroic pattern which typically presents a red and green picture when being vertically observed, the original red and green respectively changes into green and blue when being observed at a certain incline angel. The anti-counterfeit film is characterized by obvious color change, easy identification, practicability and convenience, thus facilitating promotion and application.Type: GrantFiled: June 9, 2009Date of Patent: January 21, 2014Assignee: Shanghai Techsun Anti-Counterfeiting Technology Holding Co., Ltd.Inventors: Liangheng Xu, Lanxin Dong, Yun Gao, Zhixi Zhang
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Patent number: 8541095Abstract: Disclosed herein are an anti-counterfeiting film and process for preparation thereof. The anti-counterfeiting film comprises a directional retroreflective layer (1), an optical-angle-based color-changing information layer (2), a reflective layer (3) and a support layer (4) which are combined in this turn. The support layer (4) is made of a polymer resin material, the reflective layer (3) is made of a material with high reflectivity and has a thickness of nanoscale, the information layer (2) is made of an optical-angle-based color-changing chiral polymer material having a helical structure or made of an optical-angle-based color-changing cellulose material. The optical-angle-based color-changing chiral polymer material having a helical structure is a condensation product of a chiral compound and a compound with functional group. The optical-angle-based color-changing cellulose material is composed of a cellulose derivative and a polymerisable monomer.Type: GrantFiled: July 29, 2008Date of Patent: September 24, 2013Assignee: Shanghai Techsun Anti-Counterfeiting Technology Holding Co., Ltd.Inventors: Liangheng Xu, Kai Yang
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Patent number: 8444279Abstract: Disclosed herein are an anti-counterfeiting film and a process for preparation thereof. The anti-counterfeiting film comprises a protective layer (1), a binder layer (2), a retroreflective layer (3), a photopolymerizable information layer (4) and a reflective layer (5) which are combined in turn. The retroreflective layer (3) is embedded spherically in the binder layer (2), and the photopolymerizable information layer (4) has been recorded with graphics information which can change along with the viewing angle.Type: GrantFiled: July 29, 2008Date of Patent: May 21, 2013Assignee: Shanghai Techsun Anti-Counterfeiting Technology Holding Co., Ltd.Inventors: Liangheng Xu, Kai Yang, Aiming Ge
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Patent number: 8334082Abstract: A sensitive liquid crystalline polymeric material suitable for the reflective hologram recording and the preparing method thereof are disclosed. The material includes a base film, a buffer layer coated on one side of the base film, a sensitive polymeric layer coated on the other side of the buffer layer and a protective layer coated on the surface of the sensitive polymeric layer.Type: GrantFiled: July 29, 2008Date of Patent: December 18, 2012Assignee: Shanghai Techsun Anti-Counterfeiting Technology Holding Co., Ltd.Inventors: Liangheng Xu, Yun Gao, Renshun You, Kai Yang, Xuewen Xu
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Publication number: 20110293858Abstract: Disclosed herein are an anti-counterfeiting film and process for preparation thereof. The anti-counterfeiting film comprises a directional retroreflective layer (1), an optical-angle-based color-changing information layer (2), a reflective layer (3) and a support layer (4) which are combined in this turn. The support layer (4) is made of a polymer resin material, the reflective layer (3) is made of a material with high reflectivity and has a thickness of nanoscale, the information layer (2) is made of an optical-angle-based color-changing chiral polymer material having a helical structure or made of an optical-angle-based color-changing cellulose material. The optical-angle-based color-changing chiral polymer material having a helical structure is a condensation product of a chiral compound and a compound with functional group. The optical-angle-based color-changing cellulose material is composed of a cellulose derivative and a polymerisable monomer.Type: ApplicationFiled: July 29, 2008Publication date: December 1, 2011Applicant: SHANGHAI FUDAN TECHSUN NEW TECHNOLOGY CO. LTD.Inventors: Liangheng Xu, Kai Yang
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Publication number: 20110256351Abstract: An anti-counterfeit film comprising an amphichroic pattern is prepared by (1) mixing a polymerizable liquid crystal material of chiral structure and a photoinitiator, blade-coating the mixture on a base film and then drying; (2) partially exposing the resulting material produced in step (1) using a positioned UV lamp, then drying and exposing in an UV radiation to obtain a desired film. The film prepared by the method has an amphichroic pattern which typically presents a red and green picture when being vertically observed, the original red and green respectively changes into green and blue when being observed at a certain incline angel. The anti-counterfeit film is characterized by obvious color change, easy identification, practicability and convenience, thus facilitating promotion and application.Type: ApplicationFiled: June 9, 2009Publication date: October 20, 2011Applicant: Shanghai Fudan Techsun New Technology Co., Ltd.Inventors: Liangheng Xu, Lanxin Dong, Yun Gao, Zhixi Zhang
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Publication number: 20110216406Abstract: The present invention relates to a sheet enabling to form dynamic three-dimensional images and a device for preparing thereof. The sheet comprises a base layer (1), a transparent protective layer (2), a reflective layer (3), and pixel points (4) that can form images. The transparent protective layer (2) is disposed at one side of the base layer (1), the pixel points (4) are embedded in the transparent protective layer (2). The pixel points (4) consist of microlenses (401) tightly closed together. The reflective layer (3) is disposed downbently at a lower part of the microlenses (401), wherein picture-text is recorded in the reflective layer (3). There is an altitude difference H between horizontal positions of two adjacent pixel points (4). Microlenses (401) in any one of pixel point have the same curvature radius, and curvature radius of microlenses (401) in two adjacent pixel points (4) have a difference of 1 to 70 ?m.Type: ApplicationFiled: August 11, 2009Publication date: September 8, 2011Applicant: Shanghai Fudan Techsun New Technology Co., Ltd.Inventors: Liangheng Xu, Aiming Ge, Yun Gao, Kai Yang
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Publication number: 20110175345Abstract: Disclosed heroin are an anti-counterfeiting film and a process for preparation thereof. The anti-counterfeiting film comprises a protective layer (1), a binder layer (2), a retroreflective layer (3), a photopolymerizable information layer (4) and a reflective layer (5) which are combined in turn. The retroreflective layer (3) is embedded spherically in the binder layer (2), and the photopolymerizable information layer (4) has been recorded with graphics information which can change along with the viewing angle.Type: ApplicationFiled: July 29, 2008Publication date: July 21, 2011Applicant: SHANGHAI FUDAN TECHSUN NEW TECHNOLOGY CO. LTD.Inventors: Liangheng Xu, Kai Yang, Aiming German
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Publication number: 20110129764Abstract: A sensitive liquid crystalline polymeric material suitable for the reflective hologram recording and the preparing method thereof are disclosed. The material includes a base film, a buffer layer coated on one side of the base film, a sensitive polymeric layer coated on the other side of the buffer layer and a protective layer coated on the surface of the sensitive polymeric layer.Type: ApplicationFiled: July 29, 2008Publication date: June 2, 2011Applicant: SHANGHAI FUNDAN TECHSUN NEW TECHNOLOGY CO. LTD.Inventors: Liangheng Xu, Yun Gao, Renshun You, Kai Yang, Xuewen Xu
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Publication number: 20100167180Abstract: A photosensitive film for holographic recording and its production method thereof are disclosed. The film comprises a base film, a buffer layer coated on one side of the base film, a photosensitive polymer coating layer formed by applying a photosensitive coating on the other side of the buffer layer, and a surface protective film covering the surface of the photosensitive polymer coating layer. Interference fringe patterns of a holographic image or an amphichronic graph are recorded in the photosensitive polymer coating layer. The film according to the present invention is a photosensitive material composed of two polymers of different refractive indexes, when coherent light beams intersect in its recording medium and produce an interference fringe pattern in the medium, monomers therein are excited accordingly and undergo free radical polymerization, thereby forming a hologram.Type: ApplicationFiled: March 19, 2008Publication date: July 1, 2010Inventors: Liangheng Xu, Yun Gao, Yang Shen, Renshun You