# US 2022/0046773 A1 · Method and system of supplementing the spectral content of illuminating light based on a target illumination spectrum > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0046773 A1 - Document ID: US20220046773A1 - Status: Published application - Kind: A1 - Application number: 17/416,444 - Filed: 2019-12-17 - Published: 2022-02-10 - Earliest claimed: 2018-12-20 - Assignees: Sollum Technologies Inc. - Applicants: Sollum Technologies Inc - Inventors: Gabriel DUPRAS; Jacques POIRIER; François ROY-MOISAN; Charles SMITH; Alban DERVILLE; Danny BOUTHOT; Louis BRUN; Guillaume TOURVILLE - Web page: https://patentgrep.com/patent/US20220046773A1 ## CPC - H05B 45/22: using optical feedback - H05B 47/11: by determining the brightness or colour temperature of ambient light - A01G 9/249: {Lighting means (with special arrangements for promoting growth A01G7/045)} - Y02B 20/40: Control techniques providing energy savings, e.g. smart controller or presence detection - H05B: ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL - A01G: HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING (picking of fruits, vegetables, hops or the like A01D46/00; propagating unicellular algae C12N1/12) - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract A method and system of supplementing a main illuminating light with a supplementary illuminating light using a plurality of solid-state light emitters to illuminate a space according to a target illumination spectrum are provided. The method can include determining or receiving a reference illumination spectrum associated with the main illuminating light. The method can also include determining a spectral deviation between the reference illumination spectrum and the target illumination spectrum. The method can further include controlling the solid-state light emitters to emit respective emitter beams forming the supplementary illuminating light and illuminating the space along with the main illuminating light, the emitter beams having respective emitter spectra together defining a supplementary illumination spectrum of the supplementary illuminating light. The controlling can include adjusting the emitter spectra to match the supplementary illumination spectrum to the spectral deviation and illuminate the space according to the target illumination spectrum. ## Claims ### Claim 1 A method of supplementing a main illuminating light with a supplementary illuminating light from a plurality of solid-state light emitters to illuminate a space according to a target illumination spectrum, the method comprising: determining or receiving a reference illumination spectrum associated with the main illuminating light; determining a spectral deviation between the reference illumination spectrum and the target illumination spectrum; and controlling the plurality of solid-state light emitters to emit a respective plurality of emitter beams forming the supplementary illuminating light and illuminating the space along with the main illuminating light, the plurality of emitter beams having a respective plurality of emitter spectra together defining a supplementary illumination spectrum of the supplementary illuminating light, the controlling comprising adjusting the plurality of emitter spectra to match the supplementary illumination spectrum to the spectral deviation and illuminate the space according to the target illumination spectrum. ### Claim 2 (depends on 1) The method of claim 1, wherein the main illuminating light originates from one or more natural light sources. ### Claim 3 (depends on 2) The method of claim 2, wherein the one or more natural light sources comprise sunlight, moonlight, starlight, or a combination thereof. ### Claim 4 (depends on 1) The method of claim 1, wherein the main illuminating light originates from one or more artificial light sources. ### Claim 5 (depends on 4) The method of claim 4, wherein the one or more artificial light sources comprise an incandescent light source, a fluorescent light source, a high-intensity discharge light source, a solid-state light source, or a combination thereof. ### Claim 6 (depends on 1) The method of claim 1, wherein the main illuminating light originates from a combination of at least one natural light source and at least one natural light source. ### Claim 7 (depends on 1, 2, 3, 4, 5, 6) The method of any one of claims 1 to 6, wherein the plurality of solid-state light emitters comprises a semiconductor light-emitting diode, a semiconductor laser diode, a vertical-cavity surface-emitting laser, an organic light-emitting diode, a polymer light-emitting diode, or a combination thereof. ### Claim 8 (depends on 1, 2, 3, 4, 5, 6, 7) The method of any one of claims 1 to 7, further comprising selecting the target illumination spectrum to replicate natural light. ### Claim 9 (depends on 8) The method of claim 8, wherein the replicated natural light comprises sunlight, moonlight, starlight, or a combination thereof. ### Claim 10 (depends on 8, 9) The method of claim 8 or 9, wherein the replicated natural light is representative of lighting conditions on Earth. ### Claim 11 (depends on 10) The method of claim 10, wherein the lighting conditions on Earth are representative of a time of day, a time of year, a geographical location, meteorological conditions, or a combination thereof. ### Claim 12 (depends on 1, 2, 3, 4, 5, 6, 7) The method of any one of claims 1 to 7, further comprising selecting the target illumination spectrum to replicate artificial light. ### Claim 13 (depends on 12) The method of claim 12, wherein the artificial light is representative of incandescent lighting, fluorescent lighting, high-intensity discharge lighting, solid-state lighting, or a combination thereof. ### Claim 14 (depends on 1, 2, 3, 4, 5, 6, 7) The method of any one of claims 1 to 7, further comprising selecting the target illumination spectrum to correspond to a combination of natural light and artificial light. ### Claim 15 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14) The method of any one of claims 1 to 14, wherein the target illumination spectrum is constant as a function of time over an illumination period. ### Claim 16 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14) The method of any one of claims 1 to 14, wherein the target illumination spectrum varies as a function of time over an illumination period. ### Claim 17 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16) The method of any one of claims 1 to 16, wherein the target illumination spectrum is determined, at least in part, based on a selection from a database. ### Claim 18 (depends on 17) The method of claim 17, wherein the target illumination spectrum corresponds to a standard illuminant or a correlated color temperature. ### Claim 19 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18) The method of any one of claims 1 to 18, wherein the target illumination spectrum is determined, at least in part, based on user input. ### Claim 20 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19) The method of any one of claims 1 to 19, wherein the target illumination spectrum encompasses visible light wavelengths. ### Claim 21 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20) The method of any one of claims 1 to 20, wherein the target illumination spectrum encompasses non-visible light wavelengths. ### Claim 22 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21) The method of any one of claims 1 to 21, wherein the target illumination spectrum has a color temperature ranging from about 1500 K to about 8000 K. ### Claim 23 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22) The method of any one of claims 1 to 22, wherein determining or receiving the reference illumination spectrum comprises selecting the reference illumination spectrum from a database containing a plurality of predefined illumination spectra. ### Claim 24 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23) The method of any one of claims 1 to 23, wherein determining or receiving the reference illumination spectrum comprises determining the reference illumination spectrum based on one or more predictive factors related to the space to be illuminated. ### Claim 25 (depends on 24) The method of claim 24, wherein the one or more predictive factors are based on geographical information, temporal information, weather information, or a combination thereof. ### Claim 26 (depends on 24, 25) The method of claim 24 or 25, further comprising updating the reference illumination spectrum over time based on changes in the one or more predictive factors. ### Claim 27 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22) The method of any one of claims 1 to 22, wherein determining or receiving the reference illumination spectrum comprises: using a spectrally resolved sensor to measure a spectral response of the main illuminating light; and determining the reference illumination spectrum from the measured spectral response. ### Claim 28 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27) The method of any one of claims 1 to 27, wherein determining the spectral deviation between the reference illumination spectrum and the target illumination spectrum comprises subtracting the reference illumination spectrum from the target illumination spectrum. ### Claim 29 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28) The method of any one of claims 1 to 28, wherein determining the spectral deviation between the reference illumination spectrum and the target illumination spectrum comprises monitoring the spectral deviation over time for changes, and wherein adjusting the plurality of emitter spectra comprises, upon detection that the spectral deviation has changed, adjusting the plurality of emitter spectra to keep the supplementary illumination spectrum matched to the spectral deviation. ### Claim 30 (depends on 29) The method of claim 29, wherein monitoring the spectral deviation comprises performing continuous or intermittent real-time measurements of the reference illumination spectrum, the supplementary illumination spectrum, or both the reference illumination spectrum and the supplementary illumination spectrum. ### Claim 31 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30) The method of any one of claims 1 to 30, wherein adjusting the plurality of emitter spectra comprises individually adjusting an intensity level of each emitter spectra. ### Claim 32 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31) The method of any one of claims 1 to 31, wherein controlling the plurality of solid-state light emitters is performed according to a pulse-width modulation scheme. ### Claim 33 (depends on 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32) A non-transitory computer readable storage medium having stored thereon computer executable instructions that, when executed by a processor, cause the processor to perform the method of any one of claims 1 to 32. ### Claim 34 (depends on 34) A computer device for use with a lighting system, the computer device including: a processor; and the non-transitory computer readable storage medium of claim 34, the non-transitory computer readable storage medium being operatively coupled to the processor. ### Claim 35 A lighting system for supplementing a main illuminating light with a supplementary illuminating light to illuminate a space according to a target illumination spectrum, the lighting system comprising: a plurality of solid-state light emitters configured to emit a respective plurality of emitter beams forming the supplementary illuminating light and illuminating the space along with the main illuminating light, the plurality of emitter beams having a respective plurality of emitter spectra together defining a supplementary illumination spectrum of the supplementary illuminating light; and a control and processing unit operatively coupled to the plurality of solid-state light emitters, the control and processing unit being configured to: determine or receive a reference illumination spectrum associated with the main illuminating light; determine a spectral deviation between the reference illumination spectrum and the target illumination spectrum; and control the plurality of solid-state light emitters by adjusting the plurality of emitter spectra to match the supplementary illumination spectrum to the spectral deviation and illuminate the space according to the target illumination spectrum. ### Claim 36 (depends on 35) The lighting system of claim 35, wherein the plurality of solid-state light emitters comprises a semiconductor light-emitting diode, a semiconductor laser diode, a vertical-cavity surface-emitting laser, an organic light-emitting diode, a polymer light-emitting diode, or a combination thereof. ### Claim 37 (depends on 35, 36) The lighting system of claim 35 or 36, wherein a number of the plurality of solid-state light emitters ranges between six and twenty. ### Claim 38 (depends on 35, 36, 37) The lighting system of any one of claims 35 to 37, wherein at least one of the emitter spectra encompasses visible light wavelengths. ### Claim 39 (depends on 35, 36, 37, 38) The lighting system of any one of claims 35 to 38, wherein at least one of the emitter spectra encompasses non-visible light wavelengths. ### Claim 40 (depends on 35, 36, 37, 38, 39) The lighting system of any one of claims 35 to 39, wherein the plurality of solid-state light emitters includes at least one colored-light emitter. ### Claim 41 (depends on 35, 36, 37, 38, 39, 40) The lighting system of any one of claims 35 to 40, wherein the plurality of solid-state light emitters includes at least one white-light emitter. ### Claim 42 (depends on 35, 36, 37, 38, 39, 40, 41) The lighting system of any one of claims 35 to 41, wherein the control and processing unit is configured to select the target illumination spectrum to replicate natural light. ### Claim 43 (depends on 35, 36, 37, 38, 39, 40, 41) The lighting system of any one of claims 35 to 41, wherein the control and processing unit is configured to select the target illumination spectrum to replicate artificial light. ### Claim 44 (depends on 35, 36, 37, 38, 39, 40, 41, 42, 43) The lighting system of any one of claims 35 to 43, wherein the control and processing unit is configured to select the target illumination spectrum as a time-constant quantity over an illumination period. ### Claim 45 (depends on 35, 36, 37, 38, 39, 40, 41, 42, 43) The lighting system of any one of claims 35 to 43, wherein the control and processing unit is configured to select the target illumination spectrum as a time-varying quantity over an illumination period. ### Claim 46 (depends on 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45) The lighting system of any one of claims 35 to 45, wherein the control and processing unit is configured to determine the spectral deviation by subtracting the reference illumination spectrum from the target illumination spectrum. ### Claim 47 (depends on 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46) The lighting system of any one of claims 35 to 46, wherein the control and processing unit is configured to determine or receive the reference illumination spectrum from a database containing a plurality of predefined illumination spectra. ### Claim 48 (depends on 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47) The lighting system of any one of claims 35 to 47, wherein the control and processing unit is configured to determine or receive the reference illumination spectrum based on one or more predictive factors related to the space to be illuminated. ### Claim 49 (depends on 48) The lighting system of claim 48, wherein the one or more predictive factors are based on geographical information, temporal information, weather information, or a combination thereof. ### Claim 50 (depends on 48, 49) The lighting system of claim 48 or 49, wherein the control and processing unit is configured to update the reference illumination spectrum over time based on changes in the one or more predictive factors. ### Claim 51 (depends on 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46) The lighting system of any one of claims 35 to 46, further comprising at least one spectrally resolved sensor to measure a spectral response of the main illuminating light. ### Claim 52 (depends on 51) The lighting system of claim 51, wherein the control and processing unit is configured to determine the reference illumination spectrum from the measured spectral response. ### Claim 53 (depends on 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52) The lighting system of any one of claims 35 to 52, wherein the control and processing unit is configured to monitor the spectral deviation over time for changes, and upon detection that the spectral deviation has changed, adjust the plurality of emitter spectra to keep the supplementary illumination spectrum matched to the spectral deviation. ### Claim 54 (depends on 53) The lighting system of claim 53, further comprising at least one spectrally resolved sensor to perform continuous or intermittent real-time measurements of the reference illumination spectrum, the supplementary illumination spectrum, or both the reference illumination spectrum and the supplementary illumination spectrum, wherein the control and processing unit is configured to monitor the spectral deviation over time for changes based on the continuous or intermittent real-time measurements. ### Claim 55 (depends on 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54) The lighting system of any one of claims 35 to 54, wherein the control and processing unit is configured to adjust the plurality of emitter spectra by individually adjusting an intensity level of each emitter spectra. ### Claim 56 (depends on 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55) The lighting system of any one of claims 35 to 55, wherein the control and processing unit is configured to adjust the plurality of emitter spectra to all be different from one another. ### Claim 57 (depends on 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55) The lighting system of any one of claims 35 to 55, wherein the control and processing unit is configured to adjust the emitter spectra of a subset of the plurality of solid-state light emitters to be identical to one another. ### Claim 58 (depends on 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57) The lighting system of any one of claims 35 to 57, wherein the control and processing unit is configured to control the plurality of solid-state light emitters according to a pulse-width modulation scheme. ### Claim 59 (depends on 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58) The lighting system of any one of claims 35 to 58, further comprising a beam combining assembly configured to combine the emitter beams emitted by the plurality of solid-state light emitters into the supplementary illuminating light.