# US 11,896,727 B2 · Lighting and sanitization device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,896,727 B2 - Document ID: US11896727B2 - Status: Granted - Kind: B2 - Application number: 17/313,167 - Filed: 2021-05-06 - Published: 2021-11-11 - Granted: 2024-02-13 - Earliest claimed: 2020-05-08 - Assignees: Artemide S.p.A. - Applicants: ARTEMIDE S.p.A. - Inventors: Carlotta Francesca Isolina Maria de Bevilacqua; Fabio Zanola - Web page: https://patentgrep.com/patent/US11896727B2 ## CPC - A61L 2/10: Ultraviolet [UV] radiation - A61L 2/084: Visible light - A61L 9/18: Radiation (A61L9/22 takes precedence) - F21V 33/0064: {Health, life-saving or fire-fighting equipment} - A61L 2103/75: Room floors or walls - A61L 2202/11: Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps - A61L 2202/14: Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs - A61L 2209/11: Apparatus for controlling air treatment - A61L 2209/12: Lighting means - F21V 23/003: {the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array} - F21Y 2115/10: Light-emitting diodes [LED] - A61L: METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES (preservation of bodies or disinfecting characterised by the agents employed A01N; preserving, e.g. sterilising, food or foodstuffs A23; preparations for medical, dental or toiletry purposes A61K) - F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, 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 A lighting and sanitization device, comprises: a first light source emitting violet light having a wavelength between 380 and 430 nm; a second light source emitting white light; a third light source emitting lime light having a peak wavelength between 535 and 545 nm. ## Claims ### Claim 1 A lighting and sanitization device, comprising: a first light source emitting violet light having a wavelength between 380 and 430 nm; a second light source emitting white light; a third light source emitting lime light having a peak wavelength between 535 and 545 nm; and a control unit operatively connected to the first light source, the second light source, and the third light source, the control unit configured to: selectively activate one or more of: the first light source, the second light source, and the third light source independently from one another; adjust the light intensity and/or emitting power of the first light source, the second light source, and the third light source; and activate the first light source, the second light source, and the third light source according to a preset program including a time profile to adjust the light emission of the device according to different lighting requirements throughout the day and/or according to a place where the device is installed and/or according to one or more signals received from one or more sensors connected to the control unit. ### Claim 2 (depends on 1) The device according to claim 1, wherein the first light source, the second light source, and the third light source are LED light sources, each comprising one or more LEDs. ### Claim 3 (depends on 1) The device according to claim 1, wherein the second light source, emitting white light, comprises one or more LEDs having a color temperature ranging between 2900 and 3100 K; and a color rendering index (CRI) equal to or greater than 90. ### Claim 4 (depends on 1) The device according to claim 1, wherein the third light source, emitting lime light, emits light which balances in the color space the effect induced by the violet light emitted by the first light source on the color coordinates of the white light emitted by the second light source, so as the combined light resulting from the combination of light emitted by all the first light source, the second light source, and the third light source is a white light. ### Claim 5 (depends on 1) The device according to claim 1, wherein the control unit is configured to control a different percentage of activation of each of the first light source, the second light source, and the third light source so that the resulting light is white light. ### Claim 6 (depends on 1) The device according to claim 1, further comprising a UV source emitting UV-C radiation, which can replace all or part of the violet light emitted by the first light source. ### Claim 7 (depends on 6) The device according to claim 6, wherein the control unit is configured to selectively activate the first light source, emitting violet light, and/or the UV source, according to a preset program including a time profile to adjust the light emission of the device according to different lighting requirements throughout the day, and/or according to a place where the device is installed, and/or according to one or more signals received from one or more sensors connected to the control unit. ### Claim 8 (depends on 6) The device according to claim 6, wherein the control unit is configured to activate simultaneously, for predetermined time periods and/or according to one or more signals received from one or more sensors, the first light source, emitting violet light, and the UV source. ### Claim 9 (depends on 8) The device according to claim 8, wherein the control unit is configured to: activate together the first light source emitting violet light, and the UV source where the use of the violet light alone emitted by the first light source is not fully effective for sanitization; and allow the UV source to be activated only if the conditions allow it and/or for a suitable time period, always checking that conditions of safe use are met. ### Claim 10 A lighting and sanitization device, comprising: a first light source emitting violet light having a wavelength between 380 and 430 nm; a second light source emitting white light; a third light source emitting lime light having a peak wavelength between 535 and 545 nm; a UV source emitting UV-C radiation, which can replace all or part of the violet light emitted by the first light source and a control unit operatively connected to the first light source, the second light source, and the third light source, the control unit configured to: selectively activate one or more of: the first light source, the second light source, and the third light source independently from one another; adjust the light intensity and/or emitting power of the first light source, the second light source, and the third light source; and selectively activate the first light source emitting violet light and/or the UV source according to a preset program including a time profile to adjust the light emission of the device according to different lighting requirements throughout the day, and/or according to a place where the device is installed, and/or according to one or more signals received from one or more sensors connected to the control unit.