# US 2014/0191658 A1 · Self-ballasted lamp and lighting equipment > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0191658 A1 - Document ID: US20140191658A1 - Status: Published application - Kind: A1 - Application number: 14/210,157 - Filed: 2014-03-13 - Published: 2014-07-10 - Earliest claimed: 2009-05-29 - Assignees: Toshiba Lighting & Technology Corporation - Applicants: Toshiba Lighting & Technology Corporation - Inventors: Makoto SAKAI; Toshiya TANAKA; Keiichi SHIMIZU; Hitoshi KAWANO - Web page: https://patentgrep.com/patent/US20140191658A1 ## CPC - H05B 44/00: Circuit arrangements for operating electroluminescent light sources (for operating light emitting diodes H05B45/00) - F21K 9/232: specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb - F21V 29/74: with fins or blades - H05B 45/00: Circuit arrangements for operating light-emitting diodes [LED] - F21V 3/061: {the material being glass} - F21V 3/062: {the material being plastics} - F21Y 2115/10: Light-emitting diodes [LED] - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - 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 ## Abstract The invention provides a self-ballasted lamp having high heat radiation performance, which is lightweight and inexpensive. A substrate having LED elements mounted is provided at one edge side of the radiator, and a cap is provided at the other edge side the radiator. A lighting circuit is accommodated between the radiator and the cap. The radiator includes a cylindrical cover member and an annular radiation member fitted to the outer circumferential part of the cover member and is composed by combining the cover member and the radiation member together. The cover member and the radiation member are made of metal and are formed by press-working. ## Claims ### Claim 1 A self ballasted lamp comprising: a substrate having an LED module formed so as to enable heat conduction; a metallic radiator having one edge part brought into heat conduction contact with the substrate, a heat radiation periphery part and the other edge part opened in an opposite side from the one edge part; a circuit holder inserted into an opening of the other end part of the radiator; a lighting circuit accommodated in the circuit holder; and a cap fitted and fixed on an outer circumferential part of the circuit holder. ### Claim 2 (depends on 1) The self-ballasted lamp according to claim 1, wherein the heat radiation periphery part has a conical outer surface and a diameter which becomes smaller toward the other edge part from the one edge part. ### Claim 3 (depends on 1) The self ballasted lamp according to claim 1, wherein the heat radiation periphery part is formed by press-working of one single metal plate. ### Claim 4 (depends on 1) The self ballasted lamp according to claim 1, wherein the substrate is brought into surface contact with the radiator. ### Claim 5 (depends on 1) The self ballasted lamp according to claim 1, wherein the LED module includes the module substrate made of a metallic material or an insulative material, and an LED formed on the module substrate. ### Claim 6 (depends on 5) The self-ballasted lamp according to claim 5, wherein the substrate includes a mounting hole, and the module substrate is crimped on the substrate in a surface contact state by screw screwed into the mounting hole. ### Claim 7 (depends on 5) The self ballasted lamp according to claim 5, wherein the module substrate includes an insertion hole, the substrate includes a mounting hole, and the module substrate is crimped on the substrate in a surface contact state by screw screwed into the mounting hole through the insertion hole. ### Claim 8 (depends on 1) The self-ballasted lamp according to claim 1, wherein the heat radiation periphery part is provided with a plurality of slits. ### Claim 9 (depends on 1) The self-ballasted lamp according to claim 1, wherein the circuit holder is cylindrical and made of an insulative resin material. ### Claim 10 (depends on 1) The self-ballasted lamp according to claim 1, wherein the circuit holder includes a partition wall part positioned between the lighting circuit and the substrate, and a wiring hole through which wiring connecting the lighting circuit and the substrate is inserted is formed in the partition wall part. ### Claim 11 (depends on 1) The self-ballasted lamp according to claim 1, wherein a globe is arranged so as to cover the LED module on the one edge side of the radiator. ### Claim 12 (depends on 11) The self ballasted lamp according to claim 11, wherein the globe is arranged so as to substantially continue to the heat radiation periphery part as well as being spherical. ### Claim 13 (depends on 1) Lighting equipment comprising: an equipment main body having a socket; and a self-ballasted lamp according to claim 1, which is mounted in the socket.