# US 2014/0153250 A1 · Lamp and Luminaire > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153250 A1 - Document ID: US20140153250A1 - Status: Published application - Kind: A1 - Application number: 14/174,063 - Filed: 2014-02-06 - Published: 2014-06-05 - Earliest claimed: 2011-09-27 - Assignees: Toshiba Lighting & Technology Corporation - Applicants: Toshiba Lighting & Technology Corporation - Inventors: Hiroshi Matsushita; Yuichiro Takahara; Shinichiro Matsumoto; Hiromichi Nakajima; Shigeru Osawa; Masahiko Kamata - Web page: https://patentgrep.com/patent/US20140153250A1 ## CPC - F21S 8/026: {intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling} - F21K 9/20: Light sources comprising attachment means - F21V 29/71: using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements - F21Y 2115/10: Light-emitting diodes [LED] - H10W 74/00: Encapsulations, e.g. protective coatings - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - 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 - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 ## Abstract According to an embodiment, a lamp main body, a lighting device, a reflecting member and a light-emitting module are provided. The lamp main body includes a case and a cap member attached to the case. The case includes an opening at one end and a hole in the other end center. The cap member integrally includes a projection insertable into the hole. The lighting device and the reflecting member are housed in the case. The lighting device includes a circuit board. The reflecting member configured to reflect light to the outside of the lamp main body includes a reflecting cylinder section including a small-diameter opening and a large-diameter opening. The diameter of the cylinder section expands further toward the large-diameter opening side. The light-emitting module is arranged on the projection to be capable of transmitting heat to the projection. ## Claims ### Claim 1 A lamp comprising: a lamp main body including, a case including an opening at one end and a hole in an other end center, and a cap member integrally including a projection insertable into the hole of the case and attached to the case; a lighting device including a circuit board and housed in the case; a light-emitting module including a substrate superior to the circuit board in heat conductivity and a light-emitting element mounted on the substrate and caused to emit light by the lighting device, the light-emitting module being arranged on the projection to be capable of transmitting heat to the projection; and a reflecting member including a reflecting cylinder section including a small-diameter opening and a large-diameter opening, a diameter of the reflecting cylinder section gradually expanding from the small-diameter opening to the large-diameter opening, the reflecting member being housed in the case and reflecting light emitted from the light-emitting module to an outside of the lamp main body. ### Claim 2 (depends on 1) The lamp according to claim 1, wherein an element mounting surface of the substrate of the light-emitting module and a mounting surface of the circuit board are at same height. ### Claim 3 (depends on 1) The lamp according to claim 1, wherein an element mounting surface of the substrate of the light-emitting module is set closer to the opening of the case than a mounting surface of the circuit board. ### Claim 4 (depends on 1) The lamp according to claim 1, wherein an element mounting surface of the substrate of the light-emitting module projects further to the one end side of the case than an end of the hole close to the cap member and is further away from the opening of the case than a mounting surface of the circuit board. ### Claim 5 (depends on 1) The lamp according to claim 1, wherein the case includes a circuit-board supporting section configured to support the circuit board, and a light-emitting surface of the light-emitting module is set closer to the opening of the case than the circuit-board supporting section. ### Claim 6 (depends on 1) The lamp according to claim 1, wherein a light-emitting surface of the light-emitting module is arranged between the small-diameter opening and the large-diameter opening. ### Claim 7 (depends on 1) The lamp according to claim 1, wherein the case integrally includes an annular pressing section projecting into the hole of the case, a circumferential section of the substrate of the light-emitting module is sandwiched by the pressing section and the projection, and the case and the cap member are coupled by a fastener. ### Claim 8 (depends on 7) The lamp according to claim 7, wherein the case includes an annular circuit-board supporting section configured to support the circuit board, the circuit-board supporting section includes the pressing section, and the circuit-board supporting section is provided in a state in which the circuit-board supporting section partitions the light-emitting module and the circuit board. ### Claim 9 (depends on 1) The lamp according to claim 1, wherein a circumferential section of the substrate of the light-emitting module is sandwiched by a small-diameter end of the reflecting cylinder section surrounding the small-diameter opening and the projections, and the reflecting member is fastened by a fastener. ### Claim 10 (depends on 9) The lamp according to claim 9, wherein the reflecting member includes, further on an outer side than the large-diameter opening of the reflecting cylinder section, a flange section configured to reflect the light emitted from the light-emitting module to the outside of the lamp main body. ### Claim 11 (depends on 10) The lamp according to claim 10, wherein a plurality of cylinder sections reaching a mounting surface of the circuit board are integrally formed in the flange section of the reflecting member, and the reflecting member is coupled to the cap member by the fastener inserted into each of the cylinder sections. ### Claim 12 (depends on 10) The lamp according to claim 10, wherein a reflecting surface of the reflecting member configured to reflect the light emitted from the light-emitting module to the outside of the lamp main body is provided continuously from an inner circumferential surface of the reflecting cylinder section to a lower surface of the flange section, the reflecting surface is formed by vapor-depositing aluminum, and an outer circumferential section of the flange section is formed as a non-vapor-deposited section. ### Claim 13 A luminaire comprising: a luminaire main body including a contact section; a socket attached to the luminaire main body; and a lamp attached to the socket, wherein the lamp includes: a lamp main body including, a case including an opening at one end and a hole in an other end center, and a cap member integrally including a projection insertable into the hole of the case, attached to the case, and set in contact with the contact section; a lighting device including a circuit board and housed in the case; a light-emitting module including a substrate superior to the circuit board in heat conductivity and a light-emitting element mounted on the substrate and caused to emit light by the lighting device, the light-emitting module being arranged on the projection to be capable of transmitting heat to the projection; and a reflecting member including a reflecting cylinder section including a small-diameter opening and a large-diameter opening, a diameter of the reflecting cylinder section gradually expanding from the small-diameter opening to the large-diameter opening, the reflecting member being housed in the case and reflecting light emitted from the light-emitting module to an outside of the lamp main body. ### Claim 14 (depends on 13) The luminaire according to claim 13, wherein a sheet for heat conduction is attached to an upper surface of the cap member, and, in a state in which the lamp is attached to the luminaire main body, the sheet for heat conduction transmits heat of the lamp from the lamp to the luminaire main body. ### Claim 15 (depends on 13) The luminaire according to claim 13, further comprising, a reflector, and a thermal radiator attached to an upper part of the reflector, wherein the thermal radiator is made of metal, the thermal radiator includes the contact section, and the contact section faces an inside of the reflector through an opening section of the reflector.