Patents by Inventor Caijie Yan
Caijie Yan 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: 11240899Abstract: The present invention relates to a method and system for automatic address allocation in serially connected controlled devices (e.g. luminaires) to achieve a changed control configuration. A signal adapter is modified to send an address sorting command, so that each of the controlled devices will automatically allocate an address to itself in sequence one by one upon receiving the address sorting command from the signal adapter.Type: GrantFiled: June 5, 2018Date of Patent: February 1, 2022Assignee: SIGNIFY HOLDING B.V.Inventors: Caijie Yan, Changping Lu, Yangjing Pan, Weixi Zhou, Fangfang Zhu
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Patent number: 10998972Abstract: A receiver, method, terminal device, visible light transmissive structure and system for decoding light signals and light signals received in an area of overlap of light rays emanating from different lighting devices, each transmitting unique ID data. Light rays (45, 46, 47) entering the receiver (39) are optically spread apart in longitudinal direction (x) of an array of photodetectors (21). The thus spread light rays (45a, 46a, 47a) are optically diverged and spread further over the radiant active surface (29) of a particular photodetector (22-28), thereby optimizing the amount of light received at a respective photodetector (22-28).Type: GrantFiled: November 14, 2017Date of Patent: May 4, 2021Assignee: SIGNIFY HOLDING B.V.Inventors: Caijie Yan, Shengli Zhang
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Publication number: 20200137859Abstract: The present invention relates to a method and system for automatic address allocation in serially connected controlled devices (e.g. luminaires) to achieve a changed control configuration. A signal adapter is modified to send an address sorting command, so that each of the controlled devices will automatically allocate an address to itself in sequence one by one upon receiving the address sorting command from the signal adapter.Type: ApplicationFiled: June 5, 2018Publication date: April 30, 2020Inventors: Caijie YAN, Changping LU, Yangjing PAN, Weixi ZHOU, Fangfang ZHU
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Publication number: 20200076505Abstract: A receiver, method, terminal device, visible light transmissive structure and system for decoding light signals and light signals received in an area of overlap of light rays emanating from different lighting devices, each transmitting unique ID data. Light rays (45, 46, 47) entering the receiver (39) are optically spread apart in longitudinal direction (x) of an array of photodetectors (21). The thus spread light rays (45a, 46a, 47a) are optically diverged and spread further over the radiant active surface (29) of a particular photodetector (22-28), thereby optimizing the amount of light received at a respective photodetector (22-28).Type: ApplicationFiled: November 14, 2017Publication date: March 5, 2020Inventors: Caijie YAN, Shengli ZHANG
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Patent number: 10539292Abstract: Disclosed is an optical device (10) comprising a plurality of lenses (100) for projecting a plurality of parallel beams (202, 204) having a predetermined width towards an object area, wherein each lens comprises a lens body including a cavity (150) for housing a solid state lighting element (200); a pair of opposing internally reflecting side surfaces (130) for constraining said beam within said predetermined width; and a light exit surface delimited by said opposing side surfaces, the light exit surface comprising a curved region (110) extending from a first further side surface (141) extending between the opposing side surfaces and shaped to generate a collimated beam portion along an optical axis; and a stepped region in between the curved region and a second further side surface (142) extending between the reflecting side surfaces, wherein said steps are defined by a plurality of prismatic protrusions (120), each of said protrusions laterally extending between said opposing side surfaces.Type: GrantFiled: January 20, 2015Date of Patent: January 21, 2020Assignee: SIGNIFY HOLDING B.V.Inventors: Xiu Yang, Caijie Yan, Gang Song, Wei Wang
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Publication number: 20190344168Abstract: An interactive display system comprises at least one display unit (3), at least one sensing unit, and at least one control unit. The control unit(s) is/are configured to use the sensing unit(s) to detect a certain combination of user actions, e.g. a combination of a user (51) pointing to an area of the display unit(s) and a user action of a different type, and to use the display unit(s) to display a machine readable code, e.g. a QR code, in dependence on the certain combination of user actions being detected.Type: ApplicationFiled: December 14, 2017Publication date: November 14, 2019Inventors: XU ZENG, CAIJIE YAN, QING LI, WENYI LI
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Patent number: 10451231Abstract: The present invention discloses an optical device (100) and a lighting device for illuminating two intersecting surfaces (S1, S2). The optical device (100) comprises a first light guiding structure (120) for redirecting light from a light source (200) into a first direction and a second light guiding structure (130) for redirecting light from the light source (200) into a second direction different from the first direction, wherein the optical device (100) is arranged to prevent light from the light source (200) from being redirected in a direction between the first and second directions. By positioning the lighting device (100) at the intersection of two surfaces (S1, S2) such as can be found in a step, or at a corner of a wall, or at a corner inside a closet, or on the intersection area of ceilings, the two intersecting surfaces can be illuminated at the same time with comfortable light distribution, using a simple structure that can be easily installed.Type: GrantFiled: May 8, 2014Date of Patent: October 22, 2019Assignee: SIGNIFY HOLDING B.V.Inventors: Gang Song, Caijie Yan
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Publication number: 20190113832Abstract: The invention provides an outdoor projector device for generating a patterned light output, the patterning of the light being achieved at least partly by means of a rotatable beam patterning element being mechanically driven by means of a mechanically coupled wind turbine element.Type: ApplicationFiled: April 19, 2017Publication date: April 18, 2019Inventors: Wei WANG, Caijie YAN, Bo PAN
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Publication number: 20180306394Abstract: The present invention discloses an optical device (100) and a lighting device for illuminating two intersecting surfaces (S1, S2). The optical device (100) comprises a first light guiding structure (120) for redirecting light from a light source (200) into a first direction and a second light guiding structure (130) for redirecting light from the light source (200) into a second direction different from the first direction, wherein the optical device (100) is arranged to prevent light from the light source (200) from being redirected in a direction between the first and second directions. By positioning the lighting device (100) at the intersection of two surfaces (S1, S2) such as can be found in a step, or at a corner of a wall, or at a corner inside a closet, or on the intersection area of ceilings, the two intersecting surfaces can be illuminated at the same time with comfortable light distribution, using a simple structure that can be easily installed.Type: ApplicationFiled: May 8, 2014Publication date: October 25, 2018Inventors: Gang SONG, Caijie YAN
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Patent number: 9915414Abstract: A luminaire (100) comprising a chamber (110) comprising at least one light exit surface (112); an axial carrier (120) mounted in said chamber (110) on an axis (105), said axial carrier (120) carrying a plurality of solid state lighting elements (122) and being surrounded by the light exit surface (112); and a body (130) mounted around said axial carrier (120), said body (130) comprising a plurality of radially extending optical cells (140) each comprising an inlet (142) facing said axial carrier (120); an outlet (144) facing the light exit surface (112); and a plurality of reflective surfaces (146, 148) extending from said inlet (142) to said outlet (144); wherein at least one of the axial carrier (120) and the body (130) are rotatably mounted relative to said axis (105) and wherein the body (130) can be rotated relative to the axcial carrier (120) or vice versa.Type: GrantFiled: February 6, 2015Date of Patent: March 13, 2018Assignee: PHILIPS LIGHTING HOLDING B.V.Inventors: Gang Song, Caijie Yan
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Patent number: 9702521Abstract: Disclosed is a luminaire (100) comprising a chamber delimited by a body (110) defining a light exit surface of the luminaire; and an optical cavity (135) inside the chamber such that the chamber comprises a volume (112) delimited by the body and the optical cavity, wherein the optical cavity is delimited by a first parabolic mirror (120) and a second parabolic mirror (130) facing the first parabolic mirror, the second parabolic mirror comprising an aperture (132) facing the volume, the optical cavity comprising a light source (140) mounted inside said cavity; wherein the first parabolic mirror and the second parabolic mirror are shaped to create an image (12) of the light source in the volume.Type: GrantFiled: January 13, 2015Date of Patent: July 11, 2017Assignee: PHILIPS LIGHTING HOLDING B.V.Inventors: Gang Song, Caijie Yan, Wei Wang
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Patent number: 9695998Abstract: The invention provides a lighting system for providing illumination on a surface (16), comprising a first array (10) of light sources (13) and a first reflector (12) for forming a first pattern on the surface, and a second array (10) of light sources (13) and a second reflector (12) for forming a second pattern on the surface (16), arranged concentrically around the first pattern. A controller (44) controls the first and second arrays (10) of light sources (13) to apply a cyclic function thereby to define one or more radially propagating rings or partial rings of illumination on the surface (16). This is enables a dynamic ripple lighting effect to be provided on the surface (16).Type: GrantFiled: April 28, 2015Date of Patent: July 4, 2017Assignee: PHILIPS LIGHTING HOLDING B.V.Inventors: Xu Zeng, Caijie Yan, Wei Wang, Xiu Yang
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Patent number: 9588713Abstract: The invention discloses an optical assembly comprising a plurality of optical components that are concentric to one another, each optical component having a partially reflective and partially transmissive interface with an oblique angle of incidence, and the reflectivity of the interface increasing with distance from a common center; a transitional optical component is provided between the light source and the first optical component in order to direct lights from a light source to the partially reflective and partially transmissive interface of the first optical component. By assembling the plurality of optical components, a much thinner lighting device (100) can be achieved.Type: GrantFiled: September 4, 2014Date of Patent: March 7, 2017Assignee: PHILIPS LIGHTING HOLDING B.V.Inventors: Caijie Yan, Xu Zeng, Gang Song
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Publication number: 20170051887Abstract: The invention provides a lighting system for providing illumination on a surface (16), comprising a first array (10) of light sources (13) and a first reflector (12) for forming a first pattern on the surface, and a second array (10) of light sources (13) and a second reflector (12) for forming a second pattern on the surface (16), arranged concentrically around the first pattern. A controller (44) controls the first and second arrays (10) of light sources (13) to apply a cyclic function thereby to define one or more radially propagating rings or partial rings of illumination on the surface (16). This is enables a dynamic ripple lighting effect to be provided on the surface (16).Type: ApplicationFiled: April 28, 2015Publication date: February 23, 2017Applicant: PHILIPS LIGHTING HOLDING B.V.Inventors: XU ZENG, CAIJIE YAN, WEI WANG, XIU YANG
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Publication number: 20170002995Abstract: Disclosed is an optical device (10) comprising a plurality of lenses (100) for projecting a plurality of parallel beams (202, 204) having a predetermined width towards an object area, wherein each lens comprises a lens body including a cavity (150) for housing a solid state lighting element (200); a pair of opposing internally reflecting side surfaces (130) for constraining said beam within said predetermined width; and a light exit surface delimited by said opposing side surfaces, the light exit surface comprising a curved region (110) extending from a first further side surface (141) extending between the opposing side surfaces and shaped to generate a collimated beam portion along an optical axis; and a stepped region in between the curved region and a second further side surface (142) extending between the reflecting side surfaces, wherein said steps are defined by a plurality of prismatic protrusions (120), each of said protrusions laterally extending between said opposing side surfaces.Type: ApplicationFiled: January 20, 2015Publication date: January 5, 2017Inventors: XIU YANG, CAIJIE YAN, GANG SONG, WEI WANG
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Publication number: 20160369979Abstract: A luminaire (100) comprising a chamber (110) comprising at least one light exit surface (112); an axial carrier (120) mounted in said chamber (110) on an axis (105), said axial carrier (120) carrying a plurality of solid state lighting elements (122) and being surrounded by the light exit surface (112); and a body (130) mounted around said axial carrier (120), said body (130) comprising a plurality of radially extending optical cells (140) each comprising an inlet (142) facing said axial carrier (120); an outlet (144) facing the light exit surface (112); and a plurality of reflective surfaces (146, 148) extending from said inlet (142) to said outlet (144); wherein at least one of the axial carrier (120) and the body (130) are rotatably mounted relative to said axis (105) and wherein the body (130) can be rotated relative to the axcial carrier (120) or vice versa.Type: ApplicationFiled: February 6, 2015Publication date: December 22, 2016Applicant: Philips Lighting Holding B.V.Inventors: Gang SONG, Caijie YAN
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Publication number: 20160320020Abstract: Disclosed is a luminaire (100) comprising a chamber delimited by a body (110) defining a light exit surface of the luminaire; and an optical cavity (135) inside the chamber such that the chamber comprises a volume (112) delimited by the body and the optical cavity, wherein the optical cavity is delimited by a first parabolic mirror (120) and a second parabolic mirror (130) facing the first parabolic mirror, the second parabolic mirror comprising an aperture (132) facing the volume, the optical cavity comprising a light source (140) mounted inside said cavity; wherein the first parabolic mirror and the second parabolic mirror are shaped to create an image (12) of the light source in the volume.Type: ApplicationFiled: January 13, 2015Publication date: November 3, 2016Applicant: Koninklijke Philips N.V.Inventors: GANG SONG, Caijie YAN, WEI WANG
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Publication number: 20160230962Abstract: The invention discloses an optical assembly comprising a plurality of optical components that are concentric to one another, each optical component having a partially reflective and partially transmissive interface with an oblique angle of incidence, and the reflectivity of the interface increasing with distance from a common center; a transitional optical component is provided between the light source and the first optical component in order to direct lights from a light source to the partially reflective and partially transmissive interface of the first optical component. By assembling the plurality of optical components, a much thinner lighting device (100) can be achieved.Type: ApplicationFiled: September 17, 2013Publication date: August 11, 2016Inventors: Caijie YAN, Xu ZENG, Gang SONG
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Patent number: 9046758Abstract: An omnidirectional-view three-dimensional display apparatus comprises a high-frame-rate projector (21), a rotatable reflector device and a cylindrical transmissive selective-diffusing screen (24). The optical axis of the high-frame-rate projector (21) is coincident with the rotating axis of the reflector device and the axis of the cylindrical selective-diffusing screen (24). The images projected by the high-frame-rate projector (21) are reflected by the reflector device to form images on the cylindrical transmissive selective-diffusing screen (24). The cylindrical transmissive selective-diffusing screen (24) can control the diffusing angle of the emergence ray, so that the left eye and the right eye of an observer can see a three-dimensional object's images in different view angles to achieve an omnidirectional-view three-dimensional display.Type: GrantFiled: March 17, 2010Date of Patent: June 2, 2015Assignee: ZHEJIANG UNIVERSITYInventors: Xu Liu, Xinxing Xia, Haifeng Li, Caijie Yan
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Patent number: 8698966Abstract: A screen device for three-dimensional display with full viewing-field comprises a display screen (2), a rotation device (3) for the display screen, and an optical device (1) disposed in front side of the display screen (2). The optical device (1) may be a two dimensional diaphragm array (5) with inclined openings, a vertical lenticular lens array (6), a combination of a two dimensional diaphragm array (7) with vertical openings and a lens (8), or a combination of a two dimensional micro-lens array (9), a vertical diffusion screen (10) and a cylindrical lens (11).Type: GrantFiled: June 11, 2008Date of Patent: April 15, 2014Assignee: Zhejiang UniversityInventors: Xu Liu, Haifeng Li, Xiangdong Liu, Yuanfang Lin, Zhenrong Zheng, Caijie Yan