# US 11,441,745 B2 · Light emitting device and control method thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,441,745 B2 - Document ID: US11441745B2 - Status: Granted - Kind: B2 - Application number: 17/069,319 - Filed: 2020-10-13 - Published: 2021-04-15 - Granted: 2022-09-13 - Earliest claimed: 2019-10-15 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Sooyeon Park; Myungkyum Kim; Minjun Kim; Taesik Cho; Jeongho Han - Web page: https://patentgrep.com/patent/US11441745B2 ## CPC - F21S 8/024: {intended to be recessed in a wall or like vertical structure, e.g. building facade} - A61N 5/01: Devices for producing movement of radiation source during therapy {(A61N5/1077 takes precedence)} - A61N 5/0613: {Apparatus adapted for a specific treatment} - A61N 5/0614: {Tanning} - A61N 5/0618: {Psychological treatment} - A61N 5/0622: {Optical stimulation for exciting neural tissue} - F21S 10/00: Lighting devices or systems producing a varying lighting effect - F21V 14/02: by movement of light sources {(in vehicle head lamps F21S41/657)} - F21V 23/009: {the casing being inside the housing of the lighting device} - F21V 23/0442: {activated by means of a sensor, e.g. motion or photodetectors} - H05B 45/18: using temperature feedback - H05B 45/20: Controlling the colour of the light - H05B 45/3577: Emulating the dimming characteristics, brightness or colour temperature of incandescent lamps - H05B 47/11: by determining the brightness or colour temperature of ambient light - A61N 2005/0626: {Monitoring, verifying, controlling systems and methods} - A61N 2005/0636: {Irradiating the whole body} - A61N 2005/0642: {Irradiating part of the body at a certain distance} - A61N 2005/0644: {Handheld applicators} - A61N 2005/0645: {Applicators worn by the patient} - A61N 2005/0647: {the applicator adapted to be worn on the head} - A61N 2005/0648: {the light being directed to the eyes} - A61N 2005/0661: {ultraviolet} - A61N 2005/0662: {Visible light} - F21Y 2113/13: comprising an assembly of point-like light sources - F21Y 2113/30: {of visible and non-visible spectrum} - F21S: NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS - A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B) - 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 A light emitting device is provided. The light emitting device includes a first light emitter comprising a plurality of light emitting elements configured to emit light in a visible light region, a second light emitter comprising a plurality of light emitting elements configured to emit light in an ultraviolet B (UVB) region, and at least one processor configured to control the first light emitter and the second light emitter so that a sum of an intensity of light emitted from the first light emitter and an intensity of light emitted from the second light emitter is greater than or equal to a threshold illuminance value. ## Claims ### Claim 1 A light emitting device comprising: a first light emitter comprising a plurality of light emitting elements configured to emit light in a visible light region; a second light emitter comprising a plurality of light emitting elements configured to emit light in an ultraviolet B (UVB) region; and at least one processor configured to control the first light emitter and the second light emitter so that a sum of an intensity of light emitted from the first light emitter and an intensity of light emitted from the second light emitter is greater than or equal to a threshold illuminance value, wherein the light emitting device is implemented as a wall-hanging type installable on a wall and comprises a window-shaped structure, and wherein the at least one processor is further configured to: identify a state of the window-shaped structure, control each of the first light emitter and the second light emitter to emit light based on an identification that the state of the window-shaped structure is a first state, and control each of the first light emitter and the second light emitter not to emit light based on an identification that the state of the window-shaped structure is a second state. ### Claim 2 (depends on 1) The light emitting device of claim 1, wherein the plurality of light emitting elements of the first light emitter include a white light emitting element and at least one remaining light emitting element, wherein a ratio of an intensity of light emitted by the white light emitting element to an intensity of light emitted by the at least one remaining light emitting element is greater than or equal to a threshold ratio, and wherein the at least one remaining light emitting element is implemented as at least one of a red light emitting element, a green light emitting element, or a blue light emitting element. ### Claim 3 (depends on 1) The light emitting device of claim 1, further comprising: a first light collector disposed in a front surface of the first light emitter, the first light collector configured to collect and irradiate light emitted from the first light emitter; and a second light collector disposed in a front surface of the second light emitter, the second light collector configured to collect and irradiate light emitted from the second light emitter, wherein light irradiated from each of the first light collector and the second light collector has straightness. ### Claim 4 (depends on 3) The light emitting device of claim 3, further comprising: a motor connected to the first light emitter and the second light emitter, wherein the at least one processor is further configured to: identify a space among spaces in which the light emitting device is installed based on current time information, and control the motor to adjust a light emission direction of the first light emitter and the second light emitter so as to irradiate the identified space with light. ### Claim 5 (depends on 1) The light emitting device of claim 1, wherein the light emitting device is implemented as a device installable on a wall, wherein the first light emitter is disposed on one side of the light emitting device, and wherein the second light emitter is disposed to be adjacent to the first light emitter on the one side of the light emitting device. ### Claim 6 (depends on 1) The light emitting device of claim 1, further comprising: a sensor, wherein the at least one processor is further configured to: adjust the threshold illuminance value based on an illuminance value of light sensed through the sensor, and control the intensity of light emitted from the first light emitter and the intensity of light emitted from the second light emitter based on the adjusted threshold illuminance value. ### Claim 7 (depends on 1) The light emitting device of claim 1, wherein the plurality of light emitting elements included in the first light emitter comprise a white light emitting element, a red light emitting element, a green light emitting element, and a blue light emitting element, and wherein the at least one processor is further configured to: identify color temperature information corresponding to at least one of a current time or a current weather, and control an intensity of at least one light emitting element among the plurality of light emitting elements included in the first light emitter to emit light corresponding to the identified color temperature. ### Claim 8 (depends on 1) The light emitting device of claim 1, further comprising: a communication interface configured to receive a control signal, wherein the at least one processor is further configured to control at least one of whether to emit light by each of the first light emitter and the second light emitter, the threshold illuminance value, a color temperature of light emitted from the first light emitter, or a light emission direction of each of the first light emitter and the second light emitter based on the control signal. ### Claim 9 A control method of a light emitting device, the method comprising: causing a first light emitter comprising a plurality of light emitting elements configured to emit light in a visible light region to emit light; causing a second light emitter comprising a plurality of light emitting elements configured to emit light in an ultraviolet B (UVB) region to emit light; and controlling the first light emitter and the second light emitter so that a sum of intensity of light emitted from the first light emitter and intensity of light emitted from the second light emitter is greater than or equal to a threshold illuminance value, wherein the light emitting device is implemented as a wall-hanging type installable on a wall and comprises a window-shaped structure, and wherein the controlling comprises: identifying a state of the window-shaped structure; controlling each of the first light emitter and the second light emitter to emit light based on an identification that the state of the window-shaped structure is a first state; and controlling each of the first light emitter and the second light emitter not to emit light based on an identification that the state of the window-shaped structure is a second state. ### Claim 10 (depends on 9) The method of claim 9, wherein the plurality of light emitting elements of the first light emitter include a white light emitting element and at least one remaining light emitting element, wherein a ratio of an intensity of light emitted by the white light emitting element to an intensity of light emitted by the at least one remaining light emitting element is greater than or equal to a threshold ratio, and wherein the at least one remaining light emitting element is implemented as at least one of a red light emitting element, a green light emitting element, or a blue light emitting element. ### Claim 11 (depends on 9) The method of claim 9, wherein the light emitting device further comprises: a first light collector disposed in a front surface of the first light emitter, the first light collector configured to collect and irradiate light emitted from the first light emitter; and a second light collector disposed in a front surface of the second light emitter, the second light collector configured to collect and irradiate light emitted from the second light emitter, and wherein light irradiated from each of the first light collector and the second light collector has straightness. ### Claim 12 (depends on 11) The method of claim 11, wherein the light emitting device further comprises a motor connected to the first and second light emitters, and wherein the method further comprises: identifying a space among spaces in which the light emitting device is installed based on current time information, and controlling the motor to adjust a light emission direction of the first light emitter and the second light emitter so as to irradiate the identified space with light. ### Claim 13 (depends on 12) The method of claim 12, further comprising: identifying a current weather condition; and adjusting a color temperature of light emitted from the first light emitter based on the identified current weather condition. ### Claim 14 (depends on 13) The method of claim 13, wherein the identifying of the current weather condition comprises: receiving, through a communication interface, current weather information, and identifying the current weather condition based on the current weather information. ### Claim 15 (depends on 9) The method of claim 9, wherein the light emitting device is implemented as a device installable on a wall, wherein the first light emitter is disposed on one side of the light emitting device, and wherein the second light emitter is disposed to be adjacent to the first light emitter on the one side of the light emitting device. ### Claim 16 (depends on 9) The method of claim 9, wherein the light emitting device further comprises a sensor, wherein the controlling comprises: adjusting the threshold illuminance value based on an illuminance value of light sensed through the sensor; and controlling the intensity of light emitted from the first light emitter and the intensity of light emitted from the second light emitter based on the adjusted threshold illuminance value. ### Claim 17 (depends on 9) The method of claim 9, wherein the plurality of light emitting elements included in the first light emitter comprise a white light emitting element, a red light emitting element, a green light emitting element, and a blue light emitting element, wherein the method further comprises identifying color temperature information corresponding to at least one of a current time or a current weather, and wherein the controlling of the first light emitter and the second light emitter comprises controlling an intensity of at least one light emitting element among the plurality of light emitting elements included in the first light emitter to emit light corresponding to the identified color temperature. ### Claim 18 (depends on 9) The method of claim 9, wherein the controlling comprises: based on receiving a control signal, controlling at least one of whether to emit light of each of the first light emitter and the second light emitter, the threshold illuminance value, a color temperature of light emitted from the first light emitter, or a light emission direction of each of the first light emitter and the second light emitter based on the control signal.