# US 11,994,261 B1 · Color-changing LED bulb > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,994,261 B1 - Document ID: US11994261B1 - Status: Granted - Kind: B1 - Application number: 18/244,503 - Filed: 2023-09-11 - Granted: 2024-05-28 - Earliest claimed: 2023-09-11 - Assignees: Fourstar Group Inc. - Applicants: Fourstar Group Inc. - Inventors: Weian Lai; Benjamin J. Tryde - Web page: https://patentgrep.com/patent/US11994261B1 ## CPC - F21K 9/238: Arrangement or mounting of circuit elements integrated in the light source - F21K 9/232: specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb - F21V 23/002: {Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm} - F21V 23/005: {the substrate is supporting also the light source} - H05B 45/20: Controlling the colour of the light - H05B 47/165: following a pre-assigned programmed sequence; Logic control [LC] - F21Y 2113/13: comprising an assembly of point-like light sources - F21Y 2115/10: Light-emitting diodes [LED] - 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 - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - 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 There is described a color-changing LED bulb in the LED bulb technical field. The bulb has light-emitting components, under which electrified components are mounted. The outer surface of the light-emitting component is covered by a lampshade. The light-emitting component includes a component loading board with a protective cover on the outer side. The power cord stretches out of the bottom of the loading board and is connected to electrified components. Capacitors are also mounted at the bottom of the loading board. This color changing LED bulb controls the power supply to the beads via a chip bridge rectifier, chip resistor, and IC chip. If the switch is flipped, the chip bridge rectifier detects if power is supplied. By connecting the 3 different IC chips—U1, U2 & U3, U1 chip controls the U2 & U3 IC chip to electrify the beads of different colors. Each time that the switch is operated (flipped), a different color is displayed. ## Claims ### Claim 1 A color-changing LED bulb that comprises a light-emitting component, electrified components that are mounted below the light-emitting component, a lampshade that covers the light-emitting component, a component loading board having a power cord extending from the loading board, connected to the electrified components and including input lines, a chip bridge rectifier, a chip resistor, an IC chip and multiple light beads of different colors mounted at the top of the component loading board, the chip bridge rectifier being connected in parallel with the input lines, the chip resistor is connected in a series circuit with the chip bridge rectifier, the IC chip controlling light emission of the bead, a switch for controlling a light output from the bulb and capable of being turned on and off, a detection block for detecting the turning on of the switch; and a lighting control block for controlling the light beads, the lighting control block including a memory circuit for counting a number of times that the switch is operated so that, if there is at least a predetermined interval between switch activations, the next time that the switch is operated, the same color is displayed. ### Claim 2 (depends on 1) A color-changing LED bulb according to claim 1 wherein the input lines include a neutral line and live line. ### Claim 3 (depends on 2) A color-changing LED bulb according to claim 2 including, mounted on the input line, a fuse resistor. ### Claim 4 (depends on 2) A color-changing LED bulb according to claim 2 wherein the live line connects to the IC chip either via the chip bridge rectifier, or via the chip resistor. ### Claim 5 (depends on 4) A color-changing LED bulb according to claim 4 wherein at the bottom of the component loading board are disposed a first capacitor and a second capacitor. ### Claim 6 (depends on 5) A color-changing LED bulb according to claim 5 wherein both the first and second capacitors are connected from the live line. ### Claim 7 (depends on 3) A color-changing LED bulb according to claim 3 wherein the diode and chip resistor are connected to the IC chip in a series circuit. ### Claim 8 (depends on 2) A color-changing LED bulb according to claim 2 wherein the live line and neutral line diagonally connect to the chip bridge rectifier. ### Claim 9 A color-changing LED bulb that comprises: an electrical control circuit at a base of the bulb; a light-emitting component that is mounted over the electrical control circuit; a lampshade that covers the light-emitting component; light beads; and an external switch for controlling a light output from the bulb and capable of being turned on and off; the electrical control circuit including a detection block for detecting the turning on of the switch; and a lighting control block for controlling the light beads; the lighting control block including a memory circuit for counting a number of times that the switch is operated so that after a predetermined number of switch actions, the lighting control block causes a sequential lighting of the beads at a predetermined time interval. ### Claim 10 (depends on 9) A color-changing LED bulb according to claim 9 wherein the lighting control block includes a memory for counting switch activations in order to determine the predetermined number. ### Claim 11 (depends on 10) A color-changing LED bulb according to claim 10 wherein the lighting control block senses the time interval between switch activations, and wherein multiple colors include red, pink, magenta, light magenta, orange, light orange, green, light green, yellow, light yellow, light blue, violet, light purple, blue, aqua, bright white. ### Claim 12 (depends on 11) A color-changing LED bulb according to claim 11 wherein the lighting control block controls a predetermined bead/light to be repeated when the time interval is greater than a predetermined number. ### Claim 13 (depends on 12) A color-changing LED bulb according to claim 12 wherein the predetermined number is 5 seconds. ### Claim 14 (depends on 10) A color-changing LED bulb according to claim 10 wherein the lighting control block controls the sequential interval at on the order of 2 seconds. ### Claim 15 (depends on 9) A color-changing LED bulb according to claim 9 wherein the detection block includes input lines, a chip bridge rectifier, a chip resistor, an IC chip and multiple light beads of different colors.