# US 2019/0170304 A1 · Led bulb lamp > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2019/0170304 A1 - Document ID: US20190170304A1 - Status: Published application - Kind: A1 - Application number: 16/225,618 - Filed: 2018-12-19 - Published: 2019-06-06 - Earliest claimed: 2014-09-28 - Assignees: Zhejiang Super Lighting Electric Appliance Co., Ltd - Applicants: Zhejiang Super Lighting Electric Appliance Co., Ltd. - Inventors: Tao Jiang - Web page: https://patentgrep.com/patent/US20190170304A1 ## CPC - F21K 9/232: specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb - F21K 9/61: using light guides - F21K 9/68: Details of reflectors forming part of the light source - F21V 23/06: the elements being coupling devices {, e.g. connectors} - F21V 29/503: of light sources (cooling arrangements structurally associated with gas-discharge or vapour-discharge lamps H01J61/52; cooling arrangements structurally associated with electric incandescent lamps H01K1/58; cooling arrangements structurally associated with light-emitting diodes H10H20/858) - F21Y 2107/70: on flexible or deformable supports or substrates, e.g. for changing the light source into a desired form - F21Y 2109/00: Light sources with light-generating elements disposed on transparent or translucent supports or substrates - F21Y 2115/10: Light-emitting diodes [LED] - H10H 20/8514: {characterised by their shape, e.g. plate or foil} - H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls - H10H 20/882: {Scattering means (H10H20/82 takes precedence)} - H10W 90/00: Package configurations - F21K: NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - F21Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 ## Abstract An LED filament includes LED chips, two conductive electrodes, and an enclosure. The LED chips are arranged in an array along an axial direction of the LED filament and are electrically connected with one another. The two conductive electrodes are disposed corresponding to the array. Each of the two conductive electrodes is electrically connected to a corresponding LED chip at an end of the array. The enclosure is coated on two or more sides of the array and the two conductive electrodes. A portion of each of the two conductive electrodes is exposed from the enclosure. An axis of the LED filament is parallel with the axial direction, and a radial direction of the LED filament is perpendicular to the axial direction. Postures of at least a part of the LED chips related to an axis are different from each other on the radial direction. ## Claims ### Claim 1 An LED filament, comprising: a plurality of LED chips arranged in an array along an axial direction of the LED filament and electrically connected with one another; two conductive electrodes disposed corresponding to the array, each of the two conductive electrodes being electrically connected to a corresponding LED chip at an end of the array; and an enclosure coated on at least two sides of the array and the two conductive electrodes, a portion of each of the two conductive electrodes being exposed from the enclosure; wherein an axis of the LED filament is parallel with the axial direction, and a radial direction of the LED filament is perpendicular to the axial direction; wherein postures of at least a part of the LED chips related to the radial direction are different from each other. ### Claim 2 (depends on 1) The LED filament of claim 1, wherein the at least a part of the LED chips respectively shift on the radial direction of the LED filament from the axis of the LED filament towards different directions. ### Claim 3 (depends on 2) The LED filament of claim 2, wherein the at least a part of the LED chips respectively shift on a width direction of the LED filament from the axis of the LED filament towards different directions while the shifted LED chips are at the same level related to a horizontal plane. ### Claim 4 (depends on 2) The LED filament of claim 2, wherein the at least a part of the LED chips respectively shift on a height direction of the LED filament from the axis of the LED filament towards different directions while the shifted LED chips are at different levels related to a horizontal plane. ### Claim 5 (depends on 2) The LED filament of claim 2, wherein the at least a part of the LED chips respectively shift on both of a width direction and a height direction of the LED filament from the axis of the LED filament towards different directions while the shifted LED chips are at different levels related to a horizontal plane. ### Claim 6 (depends on 2) The LED filament of claim 2, wherein all of the LED chips respectively shift on the radial direction of the LED filament from the axis of the LED filament towards different directions. ### Claim 7 (depends on 2) The LED filament of claim 2, wherein distances between each of the shifted LED chips and the axis of the LED filament on the radial direction are identical to one another. ### Claim 8 (depends on 2) The LED filament of claim 2, wherein distances between each of the shifted LED chips and the axis of the LED filament on the radial direction are different from one another. ### Claim 9 (depends on 1) The LED filament of claim 1, wherein the at least a part of the LED chips respectively rotate about normal lines of light emitting faces of the LED chips. ### Claim 10 (depends on 9) The LED filament of claim 9, wherein all of the LED chips respectively rotate about the normal lines of the light emitting faces of the LED chips. ### Claim 11 (depends on 9) The LED filament of claim 9, wherein the rotated LED chips have different rotating angels related to the axis. ### Claim 12 (depends on 9) The LED filament of claim 9, wherein the rotated LED chips have an identical rotating angel related to the axis. ### Claim 13 (depends on 9) The LED filament of claim 9, wherein the rotated LED chips respectively shift on the radial direction of the LED filament from the axis of the LED filament towards different directions. ### Claim 14 An LED filament, comprising: a plurality of LED chips arranged in an array along an axial direction of the LED filament and electrically connected with one another, every two LED chips adjacent to each other being connected by a conductive wire; two conductive electrodes disposed corresponding to the array, each of the two conductive electrodes being electrically connected to a corresponding LED chip at an end of the array; and an enclosure coated on at least two sides of the array and the two conductive electrodes, a portion of each of the two conductive electrodes being exposed from the enclosure; wherein an axis of the LED filament is parallel with the axial direction; wherein an extending direction of at least one of the conductive wires is not parallel with the axial direction. ### Claim 15 (depends on 14) The LED filament of claim 14, wherein each of the conductive wires is connected to two connecting points respectively on every two of the adjacent LED chips, and the extending direction of each of the conductive wires between every two of the LED chips extends from one of the respective two connecting points to the other one of the respective two connecting points. ### Claim 16 (depends on 14) The LED filament of claim 14, wherein there is an angle greater than 0 degrees and less than 90 degrees between the extending direction of the at least one of the conductive wires and the axial direction. ### Claim 17 (depends on 14) The LED filament of claim 14, wherein the extending direction of the at least one of the conductive wires is not parallel with a height direction perpendicular to the axial direction and a width direction of the LED filament. ### Claim 18 (depends on 14) The LED filament of claim 14, wherein the extending direction of the at least one of the conductive wires corresponds to postures of the respective LED chips, and the postures of the respective LED chips related to a radial direction of the LED filament perpendicular to the axial direction are different from each other. ### Claim 19 (depends on 14) The LED filament of claim 14, wherein all of the extending directions of the conductive wires are not parallel with the axial direction. ### Claim 20 (depends on 14) The LED filament of claim 14, wherein a part of the extending directions of the conductive wires are parallel with the axial direction, and the other part of the extending directions of the conductive wires are not parallel with the axial direction. ### Claim 21 An LED filament, comprising: a plurality of LED chips arranged in an array along an axial direction of the LED filament and electrically connected with one another, each of the LED chips having a chip center; two conductive electrodes disposed corresponding to the array, each of the two conductive electrodes being electrically connected to a corresponding LED chip at an end of the array; and an enclosure coated on at least two sides of the array and the two conductive electrodes, a portion of each of the two conductive electrodes being exposed from the enclosures; wherein an axis of the LED filament is parallel with the axial direction, and a radial direction of the LED filament is perpendicular to the axial direction; wherein a first distance is defined from the chip center of at least one of the LED chips along a certain direction on the radial direction to a first edge of the enclosure, and a second distance is defined from the chip center of the at least one of the LED chips along an opposite direction opposite to the certain direction on the radial direction to a second edge of the enclosure opposite to the first edge; wherein the first distance and the second distance are inconsistent. ### Claim 22 (depends on 21) The LED filament of claim 21, wherein the first distance of one of the LED chips is less than the second distance of the one of the LED chips, and the first distance of another one of the LED chips is greater than the second distance of the another one of the LED chips. ### Claim 23 (depends on 21) The LED filament of claim 21, wherein at least one virtual straight line connected with the two chip centers of at least two of the LED chips adjacent to each other is not parallel with the first edge and the second edge. ### Claim 24 (depends on 21) The LED filament of claim 21, wherein at least one virtual straight line connected with the two chip centers of at least two of the LED chips adjacent to each other is not parallel with the axial direction. ### Claim 25 (depends on 24) The LED filament of claim 24, wherein the virtual straight lines connected with every two of the chip centers of every two adjacent LED chips are not parallel with the axial direction.