# US 2014/0191647 A1 · Electric lamp having reflector for transferring heat from light source > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0191647 A1 - Document ID: US20140191647A1 - Status: Published application - Kind: A1 - Application number: 14/204,557 - Filed: 2014-03-11 - Published: 2014-07-10 - Earliest claimed: 2010-03-03 - Assignees: Koninklijke Philips N.V. - Applicants: Koninklijke Philips N.V. - Inventors: Berend Jan Willem TER WEEME; Johannes Petrus Maria ANSEMS; Salvatore CASSARINO; Rudolf Georg HECHFELLNER - Web page: https://patentgrep.com/patent/US20140191647A1 ## CPC - F21V 29/505: of reflectors - F21K 9/232: specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb - F21V 3/00: Globes; Bowls; Cover glasses (with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506) - F21V 29/74: with fins or blades - F21V 7/05: plane - F21Y 2107/90: on two opposite sides of supports or substrates - F21Y 2115/10: Light-emitting diodes [LED] - F21Y 2115/15: Organic light-emitting diodes [OLED] - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - 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 - 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 relates to an electric lamp (102) comprising a primary semiconductor light source (104) in thermal communication with a primary reflector (106). Herein, the primary reflector (106) is reflective, transparent and/or translucent. The primary reflector (106) is configured for transferring heat generated by the primary semiconductor light source (104) during operation away from said primary semiconductor light, source (104). As a result, the electric lamp (102) according to the invention effectively reduces the number of parts comprised in the electric lamp (102), thereby lowering the costs of manufacturing the electric lamp (102). ## Claims ### Claim 1 An electric lamp, comprising: a primary semiconductor light source having a. primary optical axis and positioned in thermal communication with and mounted to a primary reflector, a printed circuit board for facilitating thermal communication between the primary semiconductor light source and the primary reflector. wherein the primary reflector is plate-like in configuration, extending in a predetermined plane that is transverse to said primary optical axis, and is reflective, transparent and/or translucent, and configured for transferring heat generated by the primary semiconductor light source during operation away from said primary semiconductor light source. ### Claim 2 (depends on 1) The electric lamp according to claim 1, comprising a structure for mechanically connecting the primary reflector to a socket. ### Claim 3 (depends on 2) The electric lamp according to claim 2, wherein the structure comprising a plurality of bars. ### Claim 4 (depends on 1) The electric lamp according to claim 1, comprising a secondary semiconductor light source in thermal communication with the primary reflector, wherein the primary and secondary semiconductor light sources are situated on mutually opposite sides relative to the primary reflector. ### Claim 5 (depends on 1) The electric lamp according to claim 1, comprising a secondary semiconductor light source in thermal communication with a secondary reflector, wherein the secondary reflector is reflective, transparent and/or translucent, and wherein secondary reflector is configured for transferring heat generated by the secondary semiconductor light source during operation away from said secondary semiconductor light source, wherein the primary reflector and the secondary reflector are mutually substantially parallel. ### Claim 6 (depends on 5) The electric lamp according to claim 5, wherein a distance between the primary reflector and the secondary reflector is larger than 6 mm and smaller than 15 ### Claim 7 (depends on 5) The electric lamp according to claim 5, wherein the primary semiconductor light source situated on a side of the primary reflector facing away from the secondary reflector, and wherein the secondary semiconductor light source is situated on a side of the secondary reflector facing away from the primary reflector. ### Claim 8 (depends on 1) The electric lamp according to claim 1, wherein the primary reflector comprises a covered surface area which is covered by the primary semiconductor light source and a further surface area, and wherein the further surface area is larger than the covered surface area. ### Claim 9 (depends on 1) The electric lamp according to claim 1, wherein the primary reflector comprises ceramic material. ### Claim 10 (depends on 1) The electric lamp according to claim 1, comprising a primary transparent optical chamber mounted to the primary reflector for accommodating the primary semiconductor light source. ### Claim 11 (depends on 10) The electric lamp according to claim 10, wherein the primary transparent optical chamber comprises transparent ceramic material. ### Claim 12 An electric lamp comprising: a primary semiconductor light source in thermal communication with and mounted to a primary reflector, wherein the primary reflector is reflective, transparent and/or translucent, and wherein the primary reflector is configured for transferring heat generated by the primary semiconductor light source during operation away from said primary semiconductor light source: and a secondary semiconductor light source in thermal communication with a secondary reflector, wherein the secondary reflector is reflective, transparent and/or translucent, and wherein secondary reflector is configured for transferring heat generated by the secondary semiconductor light source during operation away from said secondary semiconductor light source, wherein the primary reflector and the secondary reflector are disconnected and positioned in spaced--apart relation to one another. ### Claim 13 (depends on 12) The electric lamp according to claim 12, wherein the primary reflector and the secondary reflector are mutually substantially parallel. ### Claim 14 (depends on 12) The electric lamp according to claim 12, wherein a closest distance between the primary reflector and the secondary reflector is larger than 6 mm and smaller than 15 mm. ### Claim 15 (depends on 12) The electric lamp according to claim 12, wherein the primary semiconductor light source situated on a side of the primary reflector facing away from the secondary reflector, and wherein the secondary semiconductor light source is situated on a side of secondary reflector facing away from the primary reflector. ### Claim 16 (depends on 12) The electric lamp according to claim 12, wherein the primary reflector comprises a covered surface area which is covered by the primary semiconductor light source and a further surface area, and wherein the further surface area is larger than the covered surface area. ### Claim 17 (depends on 1) The electric lamp according to claim 1, wherein at least one of the primary reflector and the secondary reflector comprises ceramic material. ### Claim 18 (depends on 17) The electric lamp according to claim 17, wherein at least one of the primary reflector and the secondary reflector is configured for performing as a ceramic printed circuit board. ### Claim 19 (depends on 12) The electric lamp according to claim 12, wherein the primary and secondary reflectors comprise mutually opposing sections substantially curved outward as to direct the light generated during operation by the primary and secondary semiconductor light sources in particular directions. ### Claim 20 (depends on 19) The electric lamp according to claim 19, wherein curvature of at least one of the mutually opposing sections the primary and secondary reflectors is adjustable. ### Claim 21 (depends on 19) The electric lamp according to claim 19, wherein the primary and secondary reflectors comprise plastically deformable material. ### Claim 22 (depends on 12) The electric lamp according to claim 12, wherein the primary and secondary reflectors are mechanically mounted to a socket.