# US 11,304,449 B2 · Light-emitting element and aerosol generation device comprising same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,304,449 B2 - Document ID: US11304449B2 - Status: Granted - Kind: B2 - Application number: 16/764,091 - Filed: 2019-05-09 - Published: 2020-11-12 - Granted: 2022-04-19 - Earliest claimed: 2018-08-24 - Assignees: Kt&G Corporation - Applicants: Kt&G Corporation - Inventors: Hwi Kyeong An - Web page: https://patentgrep.com/patent/US11304449B2 ## CPC - A24F 40/40: Constructional details, e.g. connection of cartridges and battery parts - A61M 15/0001: {Details of inhalators; Constructional features thereof} - A61M 15/06: Inhaling appliances shaped like cigars, cigarettes or pipes - B01J 13/00: Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons - F21V 31/005: {Sealing arrangements therefor} - F21V 33/008: {Leisure, hobby or sport articles, e.g. toys, games or first-aid kits; Hand tools; Toolboxes} - H10H 20/80: Constructional details - H10H 20/85: Packages - H10H 20/8515: {not being in contact with the bodies} - H10H 20/852: Encapsulations - H10H 20/855: Optical field-shaping means, e.g. lenses - H10H 29/10: Integrated devices comprising at least one light-emitting semiconductor component covered by group H10H20/00 (active-matrix LED displays H10H29/30) - A24F 40/60: Devices with integrated user interfaces - A61M 2205/587: Lighting arrangements - A61M 2205/8206: battery-operated - A24F: SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES (inhaling appliances for medical purposes, shaped like cigars, cigarettes or pipes A61M15/06) - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS ## Abstract A light emitting element according to an embodiment includes: a light emitting portion mounted on a PCB and configured to emit light; a light shield portion spaced from the PCB and having an opening that is formed at a location corresponding to the light emitting portion and passes light emitted from the light emitting portion; a sealing portion positioned between the light shield portion and the PCB and configured to prevent light emitted from the light emitting portion from leaking between the light shield portion and the PCB; and a transmission portion contacting one surface of the light shield portion and configured to transmit light, the one surface facing a direction away from the light emitting portion, wherein the opening has an inclined surface that is an outer circumferential surface located at one end of the opening in the direction away from the light emitting portion and widened in the direction away from the light emitting portion such that spread of light that passed through the opening is prevented. ## Claims ### Claim 1 A light emitting element comprising: a light emitting portion mounted on a printed circuit board (PCB) and configured to emit light; a light shield portion that is a single element spaced from the PCB and having an opening that is formed at a location corresponding to the light emitting portion and passes light emitted from the light emitting portion; a sealing portion positioned between the light shield portion and the PCB and configured to prevent light emitted from the light emitting portion from leaking between the light shield portion and the PCB; and a transmission portion contacting one surface of the light shield portion and configured to transmit light, the one surface facing a direction away from the light emitting portion, wherein the opening includes a first portion having a uniform diameter and a second portion at a top edge corner of the light shield portion having a varying diameter that becomes wider along the direction away from the light emitting portion such that light emitted from the light emitting portion is reflected on the first portion and then reflected on the second portion. ### Claim 2 (depends on 1) The light emitting element of claim 1, further comprising an adhesive portion positioned between the sealing portion and the PCB and configured to bond the sealing portion with the PCB. ### Claim 3 (depends on 1) The light emitting element of claim 1, wherein the transmission portion comprises a protrusion accommodated in the opening. ### Claim 4 (depends on 1) The light emitting element of claim 1, wherein the sealing portion includes an elastic material. ### Claim 5 (depends on 1) The light emitting element of claim 1, wherein the light shield portion includes a material having a glass transition temperature that is higher than a glass transition temperature of the transmission portion. ### Claim 6 (depends on 1) The light emitting element of claim 1, wherein an inner wall of the opening of the light shield portion includes a mirror surface having surface roughness of Ra≤1 to reflect light. ### Claim 7 (depends on 1) The light emitting element of claim 1, wherein a surface of the second portion is inclined in a direction toward a center of the opening. ### Claim 8 (depends on 1) The light emitting element of claim 1, wherein a surface of the second portion is curved convexly in a direction toward a center of the opening. ### Claim 9 (depends on 1) The light emitting element of claim 1, wherein a surface of the second portion is curved concavely in a direction away from a center of the opening. ### Claim 10 (depends on 1) The light emitting element of claim 1, wherein a surface of the second portion has a variable curvature. ### Claim 11 (depends on 1) A light emitting module comprising a plurality of light emitting elements, each of which is the light emitting element according to claim 1. ### Claim 12 (depends on 11) An aerosol generating device comprising the light emitting module according to claim 11. ### Claim 13 A method of manufacturing a light emitting element, the method comprising: mounting a light emitting portion emitting light on a printed circuit board (PCB); positioning a light shield portion to be a single element spaced from the PCB, the light shield portion having an opening formed at a location corresponding to the light emitting portion and configured to pass light emitted from the light emitting portion; positioning a sealing portion between the light shield portion and the PCB, the sealing portion preventing light emitted from the light emitting portion from leaking between the light shield portion and the PCB; and positioning a transmission portion transmitting light to contact one surface of the light shield portion, the one surface facing a direction away from the light emitting portion, wherein the opening includes a first portion having a uniform diameter and a second portion at a top edge corner of the light shield portion having a varying diameter that becomes wider along the direction away from the light emitting portion such that light emitted from the light emitting portion is reflected on the first portion and then reflected on the second portion.