# US 7,607,803 B2 · LED lamp > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,607,803 B2 - Document ID: US7607803B2 - Status: Granted - Kind: B2 - Application number: 12/037,100 - Filed: 2008-02-26 - Published: 2009-06-18 - Granted: 2009-10-27 - Earliest claimed: 2007-12-14 - Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd.; Foxconn Technology Co., Ltd. - Inventors: Wen-Xiang Zhang; Guang Yu; Cheng-Tien Lai - Web page: https://patentgrep.com/patent/US7607803B2 ## CPC - F21V 29/74: with fins or blades - F21K 9/00: Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers - F21V 7/0008: {providing for indirect lighting} - F21V 15/02: Cages - F21V 23/02: the elements being transformers, impedances {or power supply units, e.g. a transformer with a rectifier} - F21V 29/75: with fins or blades having different shapes, thicknesses or spacing - F21V 29/763: {the planes containing the fins or blades having the direction of the light emitting axis} - F21V 31/005: {Sealing arrangements therefor} - F21W 2111/06: for aircraft runways or the like - F21W 2121/00: Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00 - F21Y 2115/10: Light-emitting diodes [LED] - 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 - F21W: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS - 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 An LED lamp includes a frame, a heat sink, an LED module and a reflector. The frame comprises a base, an upper ring spaced from the base and a plurality of stanchions connecting the upper ring and the base together. The heat sink is coupled to a top of the upper ring and covers a whole of a top of the frame. The LED module is attached to a bottom surface of the heat sink and surrounded by the upper ring. The reflector is placed on the base and has an outer surface facing and slantwise to the LED module. The reflector has a configuration like an inverted funnel. The outer surface of the reflector has multiple steps formed thereon. ## Claims ### Claim 1 An LED lamp, comprising: a frame comprising a base, an upper ring spaced from the base and a plurality of stanchions connecting the upper ring and the base together; a heat sink coupled to a top of the upper ring and covering a whole of a top of the frame; an LED module attached to a bottom surface of the heat sink and surrounded by the upper ring; and a reflector placed on the base, having an outer surface facing and being slantwise to the LED module. ### Claim 2 (depends on 1) The LED lamp as claimed in claim 1, wherein the outer surface of the reflector is centrosymmetrical relative to a central axis thereof. ### Claim 3 (depends on 1) The LED lamp as claimed in claim 1, wherein the reflector is inverted funnel-shaped. ### Claim 4 (depends on 3) The LED lamp as claimed in claim 3, wherein a plurality of steps is formed on the outer surface of the reflector. ### Claim 5 (depends on 4) The LED lamp as claimed in claim 4, wherein a fixing flange extends horizontally from a bottom edge of the reflector and defines a plurality of fixing orifices therein, adapted for fixtures extending therethrough to engage into the base. ### Claim 6 (depends on 1) The LED lamp as claimed in claim 1, wherein a lower ring corresponding to the upper ring extends upwardly from the base. ### Claim 7 (depends on 6) The LED lamp as claimed in claim 6, wherein the base is a circular plate, and the stanchions perpendicularly connect the upper and the lower rings. ### Claim 8 (depends on 1) The LED lamp as claimed in claim 1, wherein the frame is further provided with a plurality of circular wires parallel to the base, extending through the stanchions and encircling along a circumference of the frame. ### Claim 9 (depends on 1) The LED lamp as claimed in claim 1, wherein the heat sink comprises a plate and a plurality of fins extending upwardly from the plate, and the LED module is attached to a bottom surface of the plate. ### Claim 10 (depends on 9) The LED lamp as claimed in claim 9, wherein the plate is circular and defines a plurality of through holes therein, and a plurality of screws extend through the through holes and screw into the upper ring. ### Claim 11 (depends on 9) The LED lamp as claimed in claim 9, wherein the fins are spaced from and parallel to each other, and a plurality of spaced channels is defined in the fins and perpendicularly cuts the fins into a plurality of sections. ### Claim 12 (depends on 9) The LED lamp as claimed in claim 9, further comprising a waterproof cushion which is sandwiched between a top of the upper ring and the bottom surface of the plate. ### Claim 13 (depends on 1) The LED lamp as claimed in claim 1, further comprising a tube-shaped envelope which is snugly received in the frame and surrounds the reflector. ### Claim 14 (depends on 13) The LED lamp as claimed in claim 13, further comprising an upper gasket which is sandwiched between a top end of the envelope and the bottom surface of the heat sink, and a lower gasket which is sandwiched between a bottom end of the envelope and the base of the frame. ### Claim 15 (depends on 1) The LED lamp as claimed in claim 1, wherein the LED module comprises a circular printed circuit board and a plurality of LEDs mounted on the printed circuit board. ### Claim 16 An LED lamp comprising: a frame having a base, an upper ring and a stanchion interconnecting the base and the upper ring; an inverted funnel-shaped reflector received in the frame and fixed to the base, the reflector has a multiple-stepped outer surface; a heat sink fixedly attached to a top of the upper ring; and an LED module attached to a bottom surface of the heat sink; wherein light generated by the LED module is reflected by the outer surface of the reflector to radiate out of the lamp. ### Claim 17 (depends on 16) The LED lamp as claimed in claim 16, wherein the reflector has a hollow pipe extending upwardly toward a center of the LED module. ### Claim 18 (depends on 16) The LED lamp as claimed in claim 16 further comprising an envelope fittingly received in the frame and enclosing the reflector. ### Claim 19 (depends on 16) The LED lamp as claimed in claim 16 further comprising a rectifier received in the reflector.